[12.0][IMP] - Add strat/stop wizard to contract line

[12.0][IMP] - Add pause button to contract line

[IMP] - Add state filed in contract line form

[FIX] - stop don't change date_end for finished contract line

[IMP] - Change contract line buttons visibility

Add renewal process with termination notice

[FIX] - don't consider stop_date If it is after the contract line end_date

[IMP] - consider more cases in stop_plan_successor

[IMP] - cancel upcoming line on stop

[IMP] - Chnage next invoice date on un-cancel

[IMP] - Post message in contract on contract line actions

[IMP] - check contract line overlap

contract/__init__.py

@@ -1 +1,2 @@
 from . import models
+from . import wizards

contract/__manifest__.py

@@ -20,11 +20,13 @@
     'website': 'https://github.com/oca/contract',
     'depends': ['base', 'account', 'analytic'],
     'data': [
+        'wizards/contract_line_wizard.xml',
         'security/ir.model.access.csv',
         'security/contract_security.xml',
         'report/report_contract.xml',
         'report/contract_views.xml',
         'data/contract_cron.xml',
+        'data/contract_renew_cron.xml',
         'data/mail_template.xml',
         'views/abstract_contract_line.xml',
         'views/contract.xml',

contract/data/__init__.py

@@ -0,0 +1 @@
+from . import contract_line_constraints

contract/data/contract_line_constraints.py

@@ -0,0 +1,230 @@
+# Copyright 2018 ACSONE SA/NV.
+# License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl).
+
+from collections import namedtuple
+from odoo.fields import Date
+
+CRITERIA = namedtuple(
+    'CRITERIA',
+    ['WHEN', 'HAS_DATE_END', 'IS_AUTO_RENEW', 'HAS_SUCCESSOR', 'CANCELED'],
+)
+ALLOWED = namedtuple(
+    'ALLOWED',
+    ['PLAN_SUCCESSOR', 'STOP_PLAN_SUCCESSOR', 'STOP', 'CANCEL', 'UN_CANCEL'],
+)
+
+CRITERIA_ALLOWED_DICT = {
+    CRITERIA(
+        WHEN='BEFORE',
+        HAS_DATE_END=True,
+        IS_AUTO_RENEW=True,
+        HAS_SUCCESSOR=False,
+        CANCELED=False,
+    ): ALLOWED(
+        PLAN_SUCCESSOR=False,
+        STOP_PLAN_SUCCESSOR=True,
+        STOP=True,
+        CANCEL=True,
+        UN_CANCEL=False,
+    ),
+    CRITERIA(
+        WHEN='BEFORE',
+        HAS_DATE_END=True,
+        IS_AUTO_RENEW=False,
+        HAS_SUCCESSOR=True,
+        CANCELED=False,
+    ): ALLOWED(
+        PLAN_SUCCESSOR=False,
+        STOP_PLAN_SUCCESSOR=False,
+        STOP=True,
+        CANCEL=True,
+        UN_CANCEL=False,
+    ),
+    CRITERIA(
+        WHEN='BEFORE',
+        HAS_DATE_END=True,
+        IS_AUTO_RENEW=False,
+        HAS_SUCCESSOR=False,
+        CANCELED=False,
+    ): ALLOWED(
+        PLAN_SUCCESSOR=True,
+        STOP_PLAN_SUCCESSOR=True,
+        STOP=True,
+        CANCEL=True,
+        UN_CANCEL=False,
+    ),
+    CRITERIA(
+        WHEN='BEFORE',
+        HAS_DATE_END=False,
+        IS_AUTO_RENEW=False,
+        HAS_SUCCESSOR=False,
+        CANCELED=False,
+    ): ALLOWED(
+        PLAN_SUCCESSOR=False,
+        STOP_PLAN_SUCCESSOR=True,
+        STOP=True,
+        CANCEL=True,
+        UN_CANCEL=False,
+    ),
+    CRITERIA(
+        WHEN='IN',
+        HAS_DATE_END=True,
+        IS_AUTO_RENEW=True,
+        HAS_SUCCESSOR=False,
+        CANCELED=False,
+    ): ALLOWED(
+        PLAN_SUCCESSOR=False,
+        STOP_PLAN_SUCCESSOR=True,
+        STOP=True,
+        CANCEL=True,
+        UN_CANCEL=False,
+    ),
+    CRITERIA(
+        WHEN='IN',
+        HAS_DATE_END=True,
+        IS_AUTO_RENEW=False,
+        HAS_SUCCESSOR=True,
+        CANCELED=False,
+    ): ALLOWED(
+        PLAN_SUCCESSOR=False,
+        STOP_PLAN_SUCCESSOR=False,
+        STOP=True,
+        CANCEL=True,
+        UN_CANCEL=False,
+    ),
+    CRITERIA(
+        WHEN='IN',
+        HAS_DATE_END=True,
+        IS_AUTO_RENEW=False,
+        HAS_SUCCESSOR=False,
+        CANCELED=False,
+    ): ALLOWED(
+        PLAN_SUCCESSOR=True,
+        STOP_PLAN_SUCCESSOR=True,
+        STOP=True,
+        CANCEL=True,
+        UN_CANCEL=False,
+    ),
+    CRITERIA(
+        WHEN='IN',
+        HAS_DATE_END=False,
+        IS_AUTO_RENEW=False,
+        HAS_SUCCESSOR=False,
+        CANCELED=False,
+    ): ALLOWED(
+        PLAN_SUCCESSOR=False,
+        STOP_PLAN_SUCCESSOR=True,
+        STOP=True,
+        CANCEL=True,
+        UN_CANCEL=False,
+    ),
+    CRITERIA(
+        WHEN='AFTER',
+        HAS_DATE_END=True,
+        IS_AUTO_RENEW=True,
+        HAS_SUCCESSOR=False,
+        CANCELED=False,
+    ): ALLOWED(
+        PLAN_SUCCESSOR=False,
+        STOP_PLAN_SUCCESSOR=False,
+        STOP=False,
+        CANCEL=False,
+        UN_CANCEL=False,
+    ),
+    CRITERIA(
+        WHEN='AFTER',
+        HAS_DATE_END=True,
+        IS_AUTO_RENEW=False,
+        HAS_SUCCESSOR=True,
+        CANCELED=False,
+    ): ALLOWED(
+        PLAN_SUCCESSOR=False,
+        STOP_PLAN_SUCCESSOR=False,
+        STOP=False,
+        CANCEL=False,
+        UN_CANCEL=False,
+    ),
+    CRITERIA(
+        WHEN='AFTER',
+        HAS_DATE_END=True,
+        IS_AUTO_RENEW=False,
+        HAS_SUCCESSOR=False,
+        CANCELED=False,
+    ): ALLOWED(
+        PLAN_SUCCESSOR=True,
+        STOP_PLAN_SUCCESSOR=False,
+        STOP=False,
+        CANCEL=False,
+        UN_CANCEL=False,
+    ),
+    CRITERIA(
+        WHEN=None,
+        HAS_DATE_END=None,
+        IS_AUTO_RENEW=None,
+        HAS_SUCCESSOR=None,
+        CANCELED=True,
+    ): ALLOWED(
+        PLAN_SUCCESSOR=False,
+        STOP_PLAN_SUCCESSOR=False,
+        STOP=False,
+        CANCEL=False,
+        UN_CANCEL=True,
+    ),
+}
+
+
+def compute_when(date_start, date_end):
+    today = Date.today()
+    if today < date_start:
+        return 'BEFORE'
+    if date_end and today > date_end:
+        return 'AFTER'
+    return 'IN'
+
+
+def compute_criteria(
+    date_start,
+    date_end,
+    is_auto_renew,
+    successor_contract_line_id,
+    is_canceled,
+):
+    if is_canceled:
+        return CRITERIA(
+            WHEN=None,
+            HAS_DATE_END=None,
+            IS_AUTO_RENEW=None,
+            HAS_SUCCESSOR=None,
+            CANCELED=True,
+        )
+    when = compute_when(date_start, date_end)
+    has_date_end = date_end if not date_end else True
+    is_auto_renew = is_auto_renew
+    has_successor = True if successor_contract_line_id else False
+    canceled = is_canceled
+    return CRITERIA(
+        WHEN=when,
+        HAS_DATE_END=has_date_end,
+        IS_AUTO_RENEW=is_auto_renew,
+        HAS_SUCCESSOR=has_successor,
+        CANCELED=canceled,
+    )
+
+
+def get_allowed(
+    date_start,
+    date_end,
+    is_auto_renew,
+    successor_contract_line_id,
+    is_canceled,
+):
+    criteria = compute_criteria(
+        date_start,
+        date_end,
+        is_auto_renew,
+        successor_contract_line_id,
+        is_canceled,
+    )
+    if criteria in CRITERIA_ALLOWED_DICT:
+        return CRITERIA_ALLOWED_DICT[criteria]
+    return False

contract/data/contract_renew_cron.xml

@@ -0,0 +1,16 @@
+<?xml version="1.0" encoding='UTF-8'?>
+<odoo noupdate="1">
+
+    <record model="ir.cron" id="contract_line_cron_for_renew">
+        <field name="name">Renew Contract lines</field>
+        <field name="model_id" ref="model_account_analytic_invoice_line"/>
+        <field name="state">code</field>
+        <field name="code">model.cron_renew_contract_line()</field>
+        <field name="user_id" ref="base.user_root" />
+        <field name="interval_number">1</field>
+        <field name="interval_type">days</field>
+        <field name="numbercall">-1</field>
+        <field eval="False" name="doall" />
+    </record>
+
+</odoo>

contract/models/abstract_contract_line.py

@@ -86,8 +86,28 @@ class AccountAbstractAnalyticContractLine(models.AbstractModel):
     pricelist_id = fields.Many2one(
         comodel_name='product.pricelist', string='Pricelist'
     )
-    recurring_next_date = fields.Date(
-        copy=False, string='Date of Next Invoice'
+    recurring_next_date = fields.Date(string='Date of Next Invoice')
+
+    is_canceled = fields.Boolean(string="Canceled", default=False)
+    is_auto_renew = fields.Boolean(string="Auto Renew", default=False)
+    auto_renew_interval = fields.Integer(
+        default=1,
+        string='Renew Every',
+        help="Renew every (Days/Week/Month/Year)",
+    )
+    auto_renew_rule_type = fields.Selection(
+        [('monthly', 'Month(s)'), ('yearly', 'Year(s)')],
+        default='yearly',
+        string='Renewal type',
+        help="Specify Interval for automatic renewal.",
+    )
+    termination_notice_interval = fields.Integer(
+        default=1, string='Termination Notice Before'
+    )
+    termination_notice_rule_type = fields.Selection(
+        [('daily', 'Day(s)'), ('weekly', 'Week(s)'), ('monthly', 'Month(s)')],
+        default='monthly',
+        string='Termination Notice type',
     )
 
     @api.depends(

contract/models/contract_line.py

@@ -6,6 +6,8 @@ from dateutil.relativedelta import relativedelta
 from odoo import api, fields, models, _
 from odoo.exceptions import ValidationError
 
+from ..data.contract_line_constraints import get_allowed
+
 
 class AccountAnalyticInvoiceLine(models.Model):
     _name = 'account.analytic.invoice.line'
@@ -20,9 +22,7 @@ class AccountAnalyticInvoiceLine(models.Model):
     )
     date_start = fields.Date(string='Date Start', default=fields.Date.today())
     date_end = fields.Date(string='Date End', index=True)
-    recurring_next_date = fields.Date(
-        copy=False, string='Date of Next Invoice'
-    )
+    recurring_next_date = fields.Date(string='Date of Next Invoice')
     create_invoice_visibility = fields.Boolean(
         compute='_compute_create_invoice_visibility'
     )
@@ -40,6 +40,139 @@ class AccountAnalyticInvoiceLine(models.Model):
         store=True,
         readonly=True,
     )
+    successor_contract_line_id = fields.Many2one(
+        comodel_name='account.analytic.invoice.line',
+        string="Successor Contract Line",
+        required=False,
+        readonly=True,
+        copy=False,
+        help="Contract Line created by this one.",
+    )
+    predecessor_contract_line_id = fields.Many2one(
+        comodel_name='account.analytic.invoice.line',
+        string="Predecessor Contract Line",
+        required=False,
+        readonly=True,
+        copy=False,
+        help="Contract Line origin of this one.",
+    )
+    is_plan_successor_allowed = fields.Boolean(
+        string="Plan successor allowed?", compute='_compute_allowed'
+    )
+    is_stop_plan_successor_allowed = fields.Boolean(
+        string="Stop/Plan successor allowed?", compute='_compute_allowed'
+    )
+    is_stop_allowed = fields.Boolean(
+        string="Stop allowed?", compute='_compute_allowed'
+    )
+    is_cancel_allowed = fields.Boolean(
+        string="Cancel allowed?", compute='_compute_allowed'
+    )
+    is_un_cancel_allowed = fields.Boolean(
+        string="Un-Cancel allowed?", compute='_compute_allowed'
+    )
+    state = fields.Selection(
+        string="State",
+        selection=[
+            ('upcoming', 'Upcoming'),
+            ('in-progress', 'In-progress'),
+            ('upcoming-close', 'Upcoming Close'),
+            ('closed', 'Closed'),
+            ('canceled', 'Canceled'),
+        ],
+        compute="_compute_state",
+    )
+
+    @api.multi
+    def _compute_state(self):
+        today = fields.Date.today()
+        for rec in self:
+            if rec.is_canceled:
+                rec.state = 'canceled'
+            elif today < rec.date_start:
+                rec.state = 'upcoming'
+            elif not rec.date_end or (
+                today <= rec.date_end and rec.is_auto_renew
+            ):
+                rec.state = 'in-progress'
+            elif today <= rec.date_end and not rec.is_auto_renew:
+                rec.state = 'upcoming-close'
+            else:
+                rec.state = 'closed'
+
+    @api.depends(
+        'date_start',
+        'date_end',
+        'is_auto_renew',
+        'successor_contract_line_id',
+        'is_canceled',
+    )
+    def _compute_allowed(self):
+        for rec in self:
+            allowed = get_allowed(
+                rec.date_start,
+                rec.date_end,
+                rec.is_auto_renew,
+                rec.successor_contract_line_id,
+                rec.is_canceled,
+            )
+            if allowed:
+                rec.is_plan_successor_allowed = allowed.PLAN_SUCCESSOR
+                rec.is_stop_plan_successor_allowed = (
+                    allowed.STOP_PLAN_SUCCESSOR
+                )
+                rec.is_stop_allowed = allowed.STOP
+                rec.is_cancel_allowed = allowed.CANCEL
+                rec.is_un_cancel_allowed = allowed.UN_CANCEL
+
+    @api.constrains('is_auto_renew', 'successor_contract_line_id', 'date_end')
+    def _check_allowed(self):
+        """
+            logical impossible combination:
+                * a line with is_auto_renew True should have date_end and
+                  couldn't have successor_contract_line_id
+                * a line without date_end can't have successor_contract_line_id
+
+        """
+        for rec in self:
+            if rec.is_auto_renew:
+                if rec.successor_contract_line_id:
+                    raise ValidationError(
+                        _(
+                            "A contract line with a successor "
+                            "can't be set to auto-renew"
+                        )
+                    )
+                if not rec.date_end:
+                    raise ValidationError(
+                        _("An auto-renew line should have a " "date end ")
+                    )
+            else:
+                if not rec.date_end and rec.successor_contract_line_id:
+                    raise ValidationError(
+                        _(
+                            "A contract line with a successor "
+                            "should have date end"
+                        )
+                    )
+
+    @api.constrains('successor_contract_line_id', 'date_end')
+    def _check_overlap_successor(self):
+        for rec in self:
+            if rec.date_end and rec.successor_contract_line_id:
+                if rec.date_end > rec.successor_contract_line_id.date_start:
+                    raise ValidationError(
+                        _("Contract line and its successor overlapped")
+                    )
+
+    @api.constrains('predecessor_contract_line_id', 'date_start')
+    def _check_overlap_predecessor(self):
+        for rec in self:
+            if rec.predecessor_contract_line_id:
+                if rec.date_start < rec.predecessor_contract_line_id.date_end:
+                    raise ValidationError(
+                        _("Contract line and its predecessor overlapped")
+                    )
 
     @api.model
     def _compute_first_recurring_next_date(
@@ -59,6 +192,17 @@ class AccountAnalyticInvoiceLine(models.Model):
             recurring_rule_type, recurring_interval
         )
 
+    @api.onchange(
+        'is_auto_renew', 'auto_renew_rule_type', 'auto_renew_interval'
+    )
+    def _onchange_is_auto_renew(self):
+        """Date end should be auto-computed if a contract line is set to
+        auto_renew"""
+        for rec in self.filtered('is_auto_renew'):
+            rec.date_end = self.date_start + self.get_relative_delta(
+                rec.auto_renew_rule_type, rec.auto_renew_interval
+            )
+
     @api.onchange(
         'date_start',
         'recurring_invoicing_type',
@@ -143,6 +287,7 @@ class AccountAnalyticInvoiceLine(models.Model):
             [
                 ('contract_id.recurring_invoices', '=', True),
                 ('recurring_next_date', '<=', date_ref),
+                ('is_canceled', '=', False),
                 '|',
                 ('date_end', '=', False),
                 ('date_end', '>=', date_ref),
@@ -248,3 +393,386 @@ class AccountAnalyticInvoiceLine(models.Model):
             return relativedelta(months=interval, day=31)
         else:
             return relativedelta(years=interval)
+
+    @api.multi
+    def delay(self, delay_delta):
+        """
+        Delay a contract line
+        :param delay_delta: delay relative delta
+        :return: delayed contract line
+        """
+        for rec in self:
+            old_date_start = rec.date_start
+            old_date_end = rec.date_end
+            new_date_start = rec.date_start + delay_delta
+            rec.recurring_next_date = self._compute_first_recurring_next_date(
+                new_date_start,
+                rec.recurring_invoicing_type,
+                rec.recurring_rule_type,
+                rec.recurring_interval,
+            )
+            rec.date_end = (
+                rec.date_end
+                if not rec.date_end
+                else rec.date_end + delay_delta
+            )
+            rec.date_start = new_date_start
+            msg = _(
+                """Contract line for <strong>{product}</strong>
+                delayed: <br/>
+                - <strong>Start</strong>: {old_date_start} -- {new_date_start}
+                <br/>
+                - <strong>End</strong>: {old_date_end} -- {new_date_end}
+                """.format(
+                    product=rec.name,
+                    old_date_start=old_date_start,
+                    new_date_start=rec.date_start,
+                    old_date_end=old_date_end,
+                    new_date_end=rec.date_end,
+                )
+            )
+            rec.contract_id.message_post(body=msg)
+
+    @api.multi
+    def stop(self, date_end):
+        """
+        Put date_end on contract line
+        We don't consider contract lines that end's before the new end date
+        :param date_end: new date end for contract line
+        :return: True
+        """
+        if not all(self.mapped('is_stop_allowed')):
+            raise ValidationError(_('Stop not allowed for this line'))
+        for rec in self:
+            if date_end < rec.date_start:
+                rec.cancel()
+            else:
+                old_date_end = rec.date_end
+                date_end = (
+                    rec.date_end
+                    if rec.date_end and rec.date_end < date_end
+                    else date_end
+                )
+                rec.write({'date_end': date_end, 'is_auto_renew': False})
+
+                msg = _(
+                    """Contract line for <strong>{product}</strong>
+                    stopped: <br/>
+                    - <strong>End</strong>: {old_date_end} -- {new_date_end}
+                    """.format(
+                        product=rec.name,
+                        old_date_end=old_date_end,
+                        new_date_end=rec.date_end,
+                    )
+                )
+                rec.contract_id.message_post(body=msg)
+        return True
+
+    @api.multi
+    def _prepare_value_for_plan_successor(
+        self, date_start, date_end, is_auto_renew, recurring_next_date=False
+    ):
+        self.ensure_one()
+        if not recurring_next_date:
+            recurring_next_date = self._compute_first_recurring_next_date(
+                date_start,
+                self.recurring_invoicing_type,
+                self.recurring_rule_type,
+                self.recurring_interval,
+            )
+        new_vals = self.read()[0]
+        new_vals.pop("id", None)
+        values = self._convert_to_write(new_vals)
+        values['date_start'] = date_start
+        values['date_end'] = date_end
+        values['recurring_next_date'] = recurring_next_date
+        values['is_auto_renew'] = is_auto_renew
+        values['predecessor_contract_line_id'] = self.id
+        return values
+
+    @api.multi
+    def plan_successor(
+        self, date_start, date_end, is_auto_renew, recurring_next_date=False
+    ):
+        """
+        Create a copy of a contract line in a new interval
+        :param date_start: date_start for the successor_contract_line
+        :param date_end: date_end for the successor_contract_line
+        :param is_auto_renew: is_auto_renew option for successor_contract_line
+        :param recurring_next_date: recurring_next_date for the
+        successor_contract_line
+        :return: successor_contract_line
+        """
+        contract_line = self.env['account.analytic.invoice.line']
+        for rec in self:
+            if not rec.is_plan_successor_allowed:
+                raise ValidationError(
+                    _('Plan successor not allowed for this line')
+                )
+            rec.is_auto_renew = False
+            new_line = self.create(
+                rec._prepare_value_for_plan_successor(
+                    date_start, date_end, is_auto_renew, recurring_next_date
+                )
+            )
+            rec.successor_contract_line_id = new_line
+            contract_line |= new_line
+
+            msg = _(
+                """Contract line for <strong>{product}</strong>
+                planned a successor: <br/>
+                - <strong>Start</strong>: {new_date_start}
+                <br/>
+                - <strong>End</strong>: {new_date_end}
+                """.format(
+                    product=rec.name,
+                    new_date_start=new_line.date_start,
+                    new_date_end=new_line.date_end,
+                )
+            )
+            rec.contract_id.message_post(body=msg)
+        return contract_line
+
+    @api.multi
+    def stop_plan_successor(self, date_start, date_end, is_auto_renew):
+        """
+        Stop a contract line for a defined period and start it later
+        Cases to consider:
+            * contract line end's before the suspension period:
+                -> apply stop
+            * contract line start before the suspension period and end in it
+                -> apply stop at suspension start date
+                -> apply plan successor:
+                    - date_start: suspension.date_end
+                    - date_end: date_end    + (contract_line.date_end
+                                            - suspension.date_start)
+            * contract line start before the suspension period and end after it
+                -> apply stop at suspension start date
+                -> apply plan successor:
+                    - date_start: suspension.date_end
+                    - date_end: date_end + (suspension.date_end
+                                        - suspension.date_start)
+            * contract line start and end's in the suspension period
+                -> apply delay
+                    - delay: suspension.date_end - contract_line.end_date
+            * contract line start in the suspension period and end after it
+                -> apply delay
+                    - delay: suspension.date_end - contract_line.date_start
+            * contract line start  and end after the suspension period
+                -> apply delay
+                    - delay: suspension.date_end - suspension.start_date
+        :param date_start: suspension start date
+        :param date_end: suspension end date
+        :param is_auto_renew: is the new line is set to auto_renew
+        :return: created contract line
+        """
+        if not all(self.mapped('is_stop_plan_successor_allowed')):
+            raise ValidationError(
+                _('Stop/Plan successor not allowed for this line')
+            )
+        contract_line = self.env['account.analytic.invoice.line']
+        for rec in self:
+            if rec.date_start >= date_start:
+                if rec.date_end and rec.date_end <= date_end:
+                    delay = date_end - rec.date_end
+                elif (
+                    rec.date_end
+                    and rec.date_end > date_end
+                    or not rec.date_end
+                ) and rec.date_start <= date_end:
+                    delay = date_end - rec.date_start
+                else:
+                    delay = date_end - date_start
+                rec.delay(delay)
+                contract_line |= rec
+            else:
+                if rec.date_end and rec.date_end < date_start:
+                    rec.stop(date_start)
+                elif (
+                    rec.date_end
+                    and rec.date_end > date_start
+                    and rec.date_end < date_end
+                ):
+                    new_date_start = date_end
+                    new_date_end = date_end + (rec.date_end - date_start)
+                    rec.stop(date_start)
+                    contract_line |= rec.plan_successor(
+                        new_date_start, new_date_end, is_auto_renew
+                    )
+                else:
+                    new_date_start = date_end
+                    new_date_end = (
+                        rec.date_end
+                        if not rec.date_end
+                        else rec.date_end + (date_end - date_start)
+                    )
+                    rec.stop(date_start)
+                    contract_line |= rec.plan_successor(
+                        new_date_start, new_date_end, is_auto_renew
+                    )
+
+        return contract_line
+
+    @api.multi
+    def cancel(self):
+        if not all(self.mapped('is_cancel_allowed')):
+            raise ValidationError(_('Cancel not allowed for this line'))
+        for contract in self.mapped('contract_id'):
+            lines = self.filtered(lambda l, c=contract: l.contract_id == c)
+            msg = _(
+                """Contract line canceled: %s"""
+                % "<br/>- ".join(
+                    [
+                        "<strong>%s</strong>" % name
+                        for name in lines.mapped('name')
+                    ]
+                )
+            )
+            contract.message_post(body=msg)
+        return self.write({'is_canceled': True})
+
+    @api.multi
+    def uncancel(self, recurring_next_date):
+        if not all(self.mapped('is_un_cancel_allowed')):
+            raise ValidationError(_('Un-cancel not allowed for this line'))
+        for contract in self.mapped('contract_id'):
+            lines = self.filtered(lambda l, c=contract: l.contract_id == c)
+            msg = _(
+                """Contract line Un-canceled: %s"""
+                % "<br/>- ".join(
+                    [
+                        "<strong>%s</strong>" % name
+                        for name in lines.mapped('name')
+                    ]
+                )
+            )
+            contract.message_post(body=msg)
+        return self.write(
+            {'is_canceled': False, 'recurring_next_date': recurring_next_date}
+        )
+
+    @api.multi
+    def action_uncancel(self):
+        self.ensure_one()
+        context = {
+            'default_contract_line_id': self.id,
+            'default_recurring_next_date': fields.Date.today(),
+        }
+        context.update(self.env.context)
+        view_id = self.env.ref(
+            'contract.contract_line_wizard_uncancel_form_view'
+        ).id
+        return {
+            'type': 'ir.actions.act_window',
+            'name': 'Un-Cancel Contract Line',
+            'res_model': 'account.analytic.invoice.line.wizard',
+            'view_type': 'form',
+            'view_mode': 'form',
+            'views': [(view_id, 'form')],
+            'target': 'new',
+            'context': context,
+        }
+
+    @api.multi
+    def action_plan_successor(self):
+        self.ensure_one()
+        context = {
+            'default_contract_line_id': self.id,
+            'default_is_auto_renew': self.is_auto_renew,
+        }
+        context.update(self.env.context)
+        view_id = self.env.ref(
+            'contract.contract_line_wizard_plan_successor_form_view'
+        ).id
+        return {
+            'type': 'ir.actions.act_window',
+            'name': 'Plan contract line successor',
+            'res_model': 'account.analytic.invoice.line.wizard',
+            'view_type': 'form',
+            'view_mode': 'form',
+            'views': [(view_id, 'form')],
+            'target': 'new',
+            'context': context,
+        }
+
+    @api.multi
+    def action_stop(self):
+        self.ensure_one()
+        context = {
+            'default_contract_line_id': self.id,
+            'default_date_end': self.date_end,
+        }
+        context.update(self.env.context)
+        view_id = self.env.ref(
+            'contract.contract_line_wizard_stop_form_view'
+        ).id
+        return {
+            'type': 'ir.actions.act_window',
+            'name': 'Resiliate contract line',
+            'res_model': 'account.analytic.invoice.line.wizard',
+            'view_type': 'form',
+            'view_mode': 'form',
+            'views': [(view_id, 'form')],
+            'target': 'new',
+            'context': context,
+        }
+
+    @api.multi
+    def action_stop_plan_successor(self):
+        self.ensure_one()
+        context = {
+            'default_contract_line_id': self.id,
+            'default_is_auto_renew': self.is_auto_renew,
+        }
+        context.update(self.env.context)
+        view_id = self.env.ref(
+            'contract.contract_line_wizard_stop_plan_successor_form_view'
+        ).id
+        return {
+            'type': 'ir.actions.act_window',
+            'name': 'Suspend contract line',
+            'res_model': 'account.analytic.invoice.line.wizard',
+            'view_type': 'form',
+            'view_mode': 'form',
+            'views': [(view_id, 'form')],
+            'target': 'new',
+            'context': context,
+        }
+
+    @api.multi
+    def _get_renewal_dates(self):
+        self.ensure_one()
+        date_start = self.date_end
+        date_end = date_start + self.get_relative_delta(
+            self.auto_renew_rule_type, self.auto_renew_interval
+        )
+        return date_start, date_end
+
+    @api.multi
+    def renew(self):
+        res = self.env['account.analytic.invoice.line']
+        for rec in self:
+            is_auto_renew = rec.is_auto_renew
+            rec.stop(rec.date_end)
+            date_start, date_end = rec._get_renewal_dates()
+            new_line = rec.plan_successor(date_start, date_end, is_auto_renew)
+            new_line._onchange_date_start()
+            res |= new_line
+        return res
+
+    @api.model
+    def _contract_line_to_renew_domain(self):
+        date_ref = fields.datetime.today() + self.get_relative_delta(
+            self.termination_notice_rule_type, self.termination_notice_interval
+        )
+        return [
+            ('is_auto_renew', '=', True),
+            ('date_end', '<=', date_ref),
+            ('is_canceled', '=', False),
+        ]
+
+    @api.model
+    def cron_renew_contract_line(self):
+        domain = self._contract_line_to_renew_domain()
+        to_renew = self.search(domain)
+        to_renew.renew()

contract/tests/test_contract.py

@@ -1,7 +1,8 @@
-# Copyright 2016 Tecnativa - Carlos Dauden
-# Copyright 2017 Tecnativa - Pedro M. Baeza
+# Copyright 2018 Tecnativa - Carlos Dauden
+# Copyright 2018 Tecnativa - Pedro M. Baeza
 # License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl).
 
+from dateutil.relativedelta import relativedelta
 from odoo import fields
 from odoo.exceptions import ValidationError
 from odoo.tests import common
@@ -75,8 +76,8 @@ class TestContractBase(common.SavepointCase):
                             'discount': 50,
                             'recurring_rule_type': 'monthly',
                             'recurring_interval': 1,
-                            'date_start': '2016-02-15',
-                            'recurring_next_date': '2016-02-29',
+                            'date_start': '2018-02-15',
+                            'recurring_next_date': '2018-02-22',
                         },
                     )
                 ],
@@ -92,8 +93,10 @@ class TestContractBase(common.SavepointCase):
             'discount': 50,
             'recurring_rule_type': 'monthly',
             'recurring_interval': 1,
-            'date_start': '2016-02-15',
-            'recurring_next_date': '2016-02-29',
+            'date_start': '2018-01-01',
+            'date_end': '2019-01-01',
+            'recurring_next_date': '2018-01-15',
+            'is_auto_renew': True,
         }
         cls.acct_line = cls.env['account.analytic.invoice.line'].create(
             cls.line_vals
@@ -107,6 +110,7 @@ class TestContract(TestContractBase):
         vals = self.line_vals.copy()
         del vals['contract_id']
         del vals['date_start']
+        del vals['date_end']
         vals['contract_template_id'] = self.template.id
         vals.update(overrides)
         return self.env['account.analytic.contract.line'].create(vals)
@@ -130,7 +134,7 @@ class TestContract(TestContractBase):
         self.assertEqual(self.acct_line.price_unit, 10)
 
     def test_contract(self):
-        recurring_next_date = to_date('2016-03-29')
+        recurring_next_date = to_date('2018-02-15')
         self.assertAlmostEqual(self.acct_line.price_subtotal, 50.0)
         res = self.acct_line._onchange_product_id()
         self.assertIn('uom_id', res['domain'])
@@ -154,8 +158,8 @@ class TestContract(TestContractBase):
         )
 
     def test_contract_daily(self):
-        recurring_next_date = to_date('2016-03-01')
-        self.acct_line.recurring_next_date = '2016-02-29'
+        recurring_next_date = to_date('2018-02-23')
+        self.acct_line.recurring_next_date = '2018-02-22'
         self.acct_line.recurring_rule_type = 'daily'
         self.contract.pricelist_id = False
         self.contract.recurring_create_invoice()
@@ -168,8 +172,8 @@ class TestContract(TestContractBase):
         )
 
     def test_contract_weekly(self):
-        recurring_next_date = to_date('2016-03-07')
-        self.acct_line.recurring_next_date = '2016-02-29'
+        recurring_next_date = to_date('2018-03-01')
+        self.acct_line.recurring_next_date = '2018-02-22'
         self.acct_line.recurring_rule_type = 'weekly'
         self.acct_line.recurring_invoicing_type = 'post-paid'
         self.contract.recurring_create_invoice()
@@ -182,8 +186,8 @@ class TestContract(TestContractBase):
         )
 
     def test_contract_yearly(self):
-        recurring_next_date = to_date('2017-02-28')
-        self.acct_line.recurring_next_date = '2016-02-29'
+        recurring_next_date = to_date('2019-02-22')
+        self.acct_line.recurring_next_date = '2018-02-22'
         self.acct_line.recurring_rule_type = 'yearly'
         self.contract.recurring_create_invoice()
         invoices_weekly = self.env['account.invoice'].search(
@@ -195,8 +199,8 @@ class TestContract(TestContractBase):
         )
 
     def test_contract_monthly_lastday(self):
-        recurring_next_date = to_date('2016-03-31')
-        self.acct_line.recurring_next_date = '2016-02-29'
+        recurring_next_date = to_date('2018-03-31')
+        self.acct_line.recurring_next_date = '2018-02-22'
         self.acct_line.recurring_invoicing_type = 'post-paid'
         self.acct_line.recurring_rule_type = 'monthlylastday'
         self.contract.recurring_create_invoice()
@@ -216,7 +220,7 @@ class TestContract(TestContractBase):
         )
 
     def test_onchange_date_start(self):
-        recurring_next_date = to_date('2016-01-01')
+        recurring_next_date = to_date('2018-01-01')
         self.acct_line.date_start = recurring_next_date
         self.acct_line._onchange_date_start()
         self.assertEqual(
@@ -255,8 +259,8 @@ class TestContract(TestContractBase):
         with self.assertRaises(ValidationError):
             self.acct_line.write(
                 {
-                    'date_start': '2017-01-01',
-                    'recurring_next_date': '2016-01-01',
+                    'date_start': '2018-01-01',
+                    'recurring_next_date': '2017-01-01',
                 }
             )
 
@@ -403,16 +407,17 @@ class TestContract(TestContractBase):
     def test_compute_create_invoice_visibility(self):
         self.acct_line.write(
             {
-                'recurring_next_date': '2017-01-01',
-                'date_start': '2016-01-01',
+                'recurring_next_date': '2018-01-15',
+                'date_start': '2018-01-01',
+                'is_auto_renew': False,
                 'date_end': False,
             }
         )
         self.assertTrue(self.contract.create_invoice_visibility)
-        self.acct_line.date_end = '2017-01-01'
+        self.acct_line.date_end = '2018-02-01'
         self.contract.refresh()
         self.assertTrue(self.contract.create_invoice_visibility)
-        self.acct_line.date_end = '2016-01-01'
+        self.acct_line.date_end = '2018-01-01'
         self.contract.refresh()
         self.assertFalse(self.contract.create_invoice_visibility)
 
@@ -521,12 +526,534 @@ class TestContract(TestContractBase):
 
     def test_date_end(self):
         """recurring next date for a contract is the min for all lines"""
-        self.assertFalse(self.contract.date_end)
+        self.assertEqual(self.acct_line.date_end, to_date('2019-01-01'))
         self.acct_line.date_end = '2018-01-01'
-        self.assertEqual(
-            self.contract.date_end,
-            max(self.contract.recurring_invoice_line_ids.mapped('date_end')),
-        )
+        self.assertEqual(self.acct_line.date_end, to_date('2018-01-01'))
         self.acct_line.copy()
-        self.acct_line.date_end = False
+        self.acct_line.write({'date_end': False, 'is_auto_renew': False})
         self.assertFalse(self.contract.date_end)
+
+    def test_stop_contract_line(self):
+        """It should put end to the contract line"""
+        self.acct_line.write(
+            {
+                'date_start': fields.Date.today(),
+                'recurring_next_date': fields.Date.today(),
+                'date_end': fields.Date.today() + relativedelta(months=7),
+                'is_auto_renew': True,
+            }
+        )
+        self.acct_line.stop(fields.Date.today() + relativedelta(months=5))
+        self.assertEqual(
+            self.acct_line.date_end,
+            fields.Date.today() + relativedelta(months=5),
+        )
+
+    def test_stop_upcoming_contract_line(self):
+        """It should put end to the contract line"""
+        self.acct_line.write(
+            {
+                'date_start': fields.Date.today() + relativedelta(months=3),
+                'recurring_next_date': fields.Date.today()
+                + relativedelta(months=3),
+                'date_end': fields.Date.today() + relativedelta(months=7),
+                'is_auto_renew': True,
+            }
+        )
+        self.acct_line.stop(fields.Date.today())
+        self.assertEqual(
+            self.acct_line.date_end,
+            fields.Date.today() + relativedelta(months=7),
+        )
+        self.assertTrue(self.acct_line.is_canceled)
+
+    def test_stop_past_contract_line(self):
+        """Past contract line are ignored on stop"""
+        self.acct_line.write(
+            {
+                'date_end': fields.Date.today() + relativedelta(months=5),
+                'is_auto_renew': True,
+            }
+        )
+        self.acct_line.stop(fields.Date.today() + relativedelta(months=7))
+        self.assertEqual(
+            self.acct_line.date_end,
+            fields.Date.today() + relativedelta(months=5),
+        )
+
+    def test_stop_contract_line_without_date_end(self):
+        """Past contract line are ignored on stop"""
+        self.acct_line.write({'date_end': False, 'is_auto_renew': False})
+        self.acct_line.stop(fields.Date.today() + relativedelta(months=7))
+        self.assertEqual(
+            self.acct_line.date_end,
+            fields.Date.today() + relativedelta(months=7),
+        )
+
+    def test_stop_plan_successor_wizard(self):
+        self.acct_line.write(
+            {
+                'date_start': fields.Date.today(),
+                'recurring_next_date': fields.Date.today(),
+                'date_end': fields.Date.today() + relativedelta(months=5),
+                'is_auto_renew': True,
+            }
+        )
+        wizard = self.env['account.analytic.invoice.line.wizard'].create(
+            {
+                'date_end': fields.Date.today() + relativedelta(months=7),
+                'contract_line_id': self.acct_line.id,
+            }
+        )
+        wizard.stop()
+        self.assertEqual(
+            self.acct_line.date_end,
+            fields.Date.today() + relativedelta(months=7),
+        )
+        self.assertFalse(self.acct_line.is_auto_renew)
+
+    def test_stop_plan_successor_contract_line_1(self):
+        """
+        * contract line end's before the suspension period:
+                -> apply stop
+        """
+        suspension_start = fields.Date.today() + relativedelta(months=5)
+        suspension_end = fields.Date.today() + relativedelta(months=6)
+        start_date = fields.Date.today()
+        end_date = fields.Date.today() + relativedelta(months=4)
+        self.acct_line.write(
+            {
+                'date_start': start_date,
+                'recurring_next_date': start_date,
+                'date_end': end_date,
+            }
+        )
+        self.acct_line.stop_plan_successor(
+            suspension_start, suspension_end, True
+        )
+        self.assertEqual(self.acct_line.date_end, end_date)
+        new_line = self.env['account.analytic.invoice.line'].search(
+            [('predecessor_contract_line_id', '=', self.acct_line.id)]
+        )
+        self.assertFalse(new_line)
+
+    def test_stop_plan_successor_contract_line_2(self):
+        """
+        * contract line start before the suspension period and end in it
+                -> apply stop at suspension start date
+                -> apply plan successor:
+                    - date_start: suspension.date_end
+                    - date_end: suspension.date_end + (contract_line.date_end
+                                                    - suspension.date_start)
+        """
+        suspension_start = fields.Date.today() + relativedelta(months=3)
+        suspension_end = fields.Date.today() + relativedelta(months=5)
+        start_date = fields.Date.today()
+        end_date = fields.Date.today() + relativedelta(months=4)
+        self.acct_line.write(
+            {
+                'date_start': start_date,
+                'recurring_next_date': start_date,
+                'date_end': end_date,
+            }
+        )
+        self.acct_line.stop_plan_successor(
+            suspension_start, suspension_end, True
+        )
+        self.assertEqual(self.acct_line.date_end, suspension_start)
+        new_line = self.env['account.analytic.invoice.line'].search(
+            [('predecessor_contract_line_id', '=', self.acct_line.id)]
+        )
+        self.assertTrue(new_line)
+        new_date_end = suspension_end + (end_date - suspension_start)
+        self.assertEqual(new_line.date_start, suspension_end)
+        self.assertEqual(new_line.date_end, new_date_end)
+
+    def test_stop_plan_successor_contract_line_3(self):
+        """
+        * contract line start before the suspension period and end after it
+                -> apply stop at suspension start date
+                -> apply plan successor:
+                    - date_start: suspension.date_end
+                    - date_end: suspension.date_end + (suspension.date_end
+                                                    - suspension.date_start)
+        """
+        suspension_start = fields.Date.today() + relativedelta(months=3)
+        suspension_end = fields.Date.today() + relativedelta(months=5)
+        start_date = fields.Date.today()
+        end_date = fields.Date.today() + relativedelta(months=6)
+        self.acct_line.write(
+            {
+                'date_start': start_date,
+                'recurring_next_date': start_date,
+                'date_end': end_date,
+            }
+        )
+        self.acct_line.stop_plan_successor(
+            suspension_start, suspension_end, True
+        )
+        self.assertEqual(self.acct_line.date_end, suspension_start)
+        new_line = self.env['account.analytic.invoice.line'].search(
+            [('predecessor_contract_line_id', '=', self.acct_line.id)]
+        )
+        self.assertTrue(new_line)
+        new_date_end = end_date + (suspension_end - suspension_start)
+        self.assertEqual(new_line.date_start, suspension_end)
+        self.assertEqual(new_line.date_end, new_date_end)
+
+    def test_stop_plan_successor_contract_line_3_without_end_date(self):
+        """
+        * contract line start before the suspension period and end after it
+                -> apply stop at suspension start date
+                -> apply plan successor:
+                    - date_start: suspension.date_end
+                    - date_end: suspension.date_end + (suspension.date_end
+                                                    - suspension.date_start)
+        """
+        suspension_start = fields.Date.today() + relativedelta(months=3)
+        suspension_end = fields.Date.today() + relativedelta(months=5)
+        start_date = fields.Date.today()
+        end_date = False
+        self.acct_line.write(
+            {
+                'date_start': start_date,
+                'recurring_next_date': start_date,
+                'date_end': end_date,
+                'is_auto_renew': False,
+            }
+        )
+        self.acct_line.stop_plan_successor(
+            suspension_start, suspension_end, False
+        )
+        self.assertEqual(self.acct_line.date_end, suspension_start)
+        new_line = self.env['account.analytic.invoice.line'].search(
+            [('predecessor_contract_line_id', '=', self.acct_line.id)]
+        )
+        self.assertTrue(new_line)
+        self.assertEqual(new_line.date_start, suspension_end)
+        self.assertFalse(new_line.date_end)
+
+    def test_stop_plan_successor_contract_line_4(self):
+        """
+        * contract line start and end's in the suspension period
+                -> apply delay
+                    - delay: suspension.date_end - contract_line.end_date
+        """
+        suspension_start = fields.Date.today() + relativedelta(months=2)
+        suspension_end = fields.Date.today() + relativedelta(months=5)
+        start_date = fields.Date.today() + relativedelta(months=3)
+        end_date = fields.Date.today() + relativedelta(months=4)
+        self.acct_line.write(
+            {
+                'date_start': start_date,
+                'recurring_next_date': start_date,
+                'date_end': end_date,
+            }
+        )
+        self.acct_line.stop_plan_successor(
+            suspension_start, suspension_end, True
+        )
+        self.assertEqual(
+            self.acct_line.date_start, start_date + (suspension_end - end_date)
+        )
+        self.assertEqual(
+            self.acct_line.date_end, end_date + (suspension_end - end_date)
+        )
+        new_line = self.env['account.analytic.invoice.line'].search(
+            [('predecessor_contract_line_id', '=', self.acct_line.id)]
+        )
+        self.assertFalse(new_line)
+
+    def test_stop_plan_successor_contract_line_5(self):
+        """
+        * contract line start in the suspension period and end after it
+                -> apply delay
+                    - delay: suspension.date_end - contract_line.date_start
+        """
+        suspension_start = fields.Date.today() + relativedelta(months=2)
+        suspension_end = fields.Date.today() + relativedelta(months=5)
+        start_date = fields.Date.today() + relativedelta(months=3)
+        end_date = fields.Date.today() + relativedelta(months=6)
+        self.acct_line.write(
+            {
+                'date_start': start_date,
+                'recurring_next_date': start_date,
+                'date_end': end_date,
+            }
+        )
+        self.acct_line.stop_plan_successor(
+            suspension_start, suspension_end, True
+        )
+        self.assertEqual(
+            self.acct_line.date_start,
+            start_date + (suspension_end - start_date),
+        )
+        self.assertEqual(
+            self.acct_line.date_end, end_date + (suspension_end - start_date)
+        )
+        new_line = self.env['account.analytic.invoice.line'].search(
+            [('predecessor_contract_line_id', '=', self.acct_line.id)]
+        )
+        self.assertFalse(new_line)
+
+    def test_stop_plan_successor_contract_line_5_without_date_end(self):
+        """
+        * contract line start in the suspension period and end after it
+                -> apply delay
+                    - delay: suspension.date_end - contract_line.date_start
+        """
+        suspension_start = fields.Date.today() + relativedelta(months=2)
+        suspension_end = fields.Date.today() + relativedelta(months=5)
+        start_date = fields.Date.today() + relativedelta(months=3)
+        end_date = False
+        self.acct_line.write(
+            {
+                'date_start': start_date,
+                'recurring_next_date': start_date,
+                'date_end': end_date,
+                'is_auto_renew': False,
+            }
+        )
+        self.acct_line.stop_plan_successor(
+            suspension_start, suspension_end, True
+        )
+        self.assertEqual(
+            self.acct_line.date_start,
+            start_date + (suspension_end - start_date),
+        )
+        self.assertFalse(self.acct_line.date_end)
+        new_line = self.env['account.analytic.invoice.line'].search(
+            [('predecessor_contract_line_id', '=', self.acct_line.id)]
+        )
+        self.assertFalse(new_line)
+
+    def test_stop_plan_successor_contract_line_6(self):
+        """
+        * contract line start  and end after the suspension period
+                -> apply delay
+                    - delay: suspension.date_end - suspension.start_date
+        """
+        suspension_start = fields.Date.today() + relativedelta(months=2)
+        suspension_end = fields.Date.today() + relativedelta(months=3)
+        start_date = fields.Date.today() + relativedelta(months=4)
+        end_date = fields.Date.today() + relativedelta(months=6)
+        self.acct_line.write(
+            {
+                'date_start': start_date,
+                'recurring_next_date': start_date,
+                'date_end': end_date,
+            }
+        )
+        self.acct_line.stop_plan_successor(
+            suspension_start, suspension_end, True
+        )
+        self.assertEqual(
+            self.acct_line.date_start,
+            start_date + (suspension_end - suspension_start),
+        )
+        self.assertEqual(
+            self.acct_line.date_end,
+            end_date + (suspension_end - suspension_start),
+        )
+        new_line = self.env['account.analytic.invoice.line'].search(
+            [('predecessor_contract_line_id', '=', self.acct_line.id)]
+        )
+        self.assertFalse(new_line)
+
+    def test_stop_plan_successor_contract_line_6_without_date_end(self):
+        """
+        * contract line start  and end after the suspension period
+                -> apply delay
+                    - delay: suspension.date_end - suspension.start_date
+        """
+        suspension_start = fields.Date.today() + relativedelta(months=2)
+        suspension_end = fields.Date.today() + relativedelta(months=3)
+        start_date = fields.Date.today() + relativedelta(months=4)
+        end_date = False
+        self.acct_line.write(
+            {
+                'date_start': start_date,
+                'recurring_next_date': start_date,
+                'date_end': end_date,
+                'is_auto_renew': False,
+            }
+        )
+        self.acct_line.stop_plan_successor(
+            suspension_start, suspension_end, True
+        )
+        self.assertEqual(
+            self.acct_line.date_start,
+            start_date + (suspension_end - suspension_start),
+        )
+        self.assertFalse(self.acct_line.date_end)
+        new_line = self.env['account.analytic.invoice.line'].search(
+            [('predecessor_contract_line_id', '=', self.acct_line.id)]
+        )
+        self.assertFalse(new_line)
+
+    def test_stop_plan_successor_wizard(self):
+        suspension_start = fields.Date.today() + relativedelta(months=2)
+        suspension_end = fields.Date.today() + relativedelta(months=3)
+        start_date = fields.Date.today() + relativedelta(months=4)
+        end_date = fields.Date.today() + relativedelta(months=6)
+        self.acct_line.write(
+            {
+                'date_start': start_date,
+                'recurring_next_date': start_date,
+                'date_end': end_date,
+            }
+        )
+        wizard = self.env['account.analytic.invoice.line.wizard'].create(
+            {
+                'date_start': suspension_start,
+                'date_end': suspension_end,
+                'is_auto_renew': False,
+                'contract_line_id': self.acct_line.id,
+            }
+        )
+        wizard.stop_plan_successor()
+        self.assertEqual(
+            self.acct_line.date_start,
+            start_date + (suspension_end - suspension_start),
+        )
+        self.assertEqual(
+            self.acct_line.date_end,
+            end_date + (suspension_end - suspension_start),
+        )
+        new_line = self.env['account.analytic.invoice.line'].search(
+            [('predecessor_contract_line_id', '=', self.acct_line.id)]
+        )
+        self.assertFalse(new_line)
+
+    def test_plan_successor_contract_line(self):
+        self.acct_line.write(
+            {
+                'date_start': fields.Date.today(),
+                'recurring_next_date': fields.Date.today(),
+                'date_end': fields.Date.today() + relativedelta(months=3),
+                'is_auto_renew': False,
+            }
+        )
+        self.acct_line.plan_successor(
+            fields.Date.today() + relativedelta(months=5),
+            fields.Date.today() + relativedelta(months=7),
+            True,
+        )
+        new_line = self.env['account.analytic.invoice.line'].search(
+            [('predecessor_contract_line_id', '=', self.acct_line.id)]
+        )
+        self.assertFalse(self.acct_line.is_auto_renew)
+        self.assertTrue(new_line.is_auto_renew)
+        self.assertTrue(new_line, "should create a new contract line")
+        self.assertEqual(
+            new_line.date_start, fields.Date.today() + relativedelta(months=5)
+        )
+        self.assertEqual(
+            new_line.date_end, fields.Date.today() + relativedelta(months=7)
+        )
+
+    def test_overlap(self):
+        self.acct_line.write(
+            {
+                'date_start': fields.Date.today(),
+                'recurring_next_date': fields.Date.today(),
+                'date_end': fields.Date.today() + relativedelta(months=3),
+                'is_auto_renew': False,
+            }
+        )
+        self.acct_line.plan_successor(
+            fields.Date.today() + relativedelta(months=5),
+            fields.Date.today() + relativedelta(months=7),
+            True,
+        )
+        new_line = self.env['account.analytic.invoice.line'].search(
+            [('predecessor_contract_line_id', '=', self.acct_line.id)]
+        )
+        with self.assertRaises(ValidationError):
+            new_line.date_start = fields.Date.today() + relativedelta(months=2)
+        with self.assertRaises(ValidationError):
+            self.acct_line.date_end = fields.Date.today() + relativedelta(
+                months=6
+            )
+
+    def test_plan_successor_wizard(self):
+        self.acct_line.write(
+            {
+                'date_start': fields.Date.today(),
+                'recurring_next_date': fields.Date.today(),
+                'date_end': fields.Date.today() + relativedelta(months=2),
+                'is_auto_renew': False,
+            }
+        )
+        wizard = self.env['account.analytic.invoice.line.wizard'].create(
+            {
+                'date_start': fields.Date.today() + relativedelta(months=3),
+                'date_end': fields.Date.today() + relativedelta(months=5),
+                'is_auto_renew': True,
+                'contract_line_id': self.acct_line.id,
+            }
+        )
+        wizard.plan_successor()
+        new_line = self.env['account.analytic.invoice.line'].search(
+            [('predecessor_contract_line_id', '=', self.acct_line.id)]
+        )
+        self.assertFalse(self.acct_line.is_auto_renew)
+        self.assertTrue(new_line.is_auto_renew)
+        self.assertTrue(new_line, "should create a new contract line")
+        self.assertEqual(
+            new_line.date_start, fields.Date.today() + relativedelta(months=3)
+        )
+        self.assertEqual(
+            new_line.date_end, fields.Date.today() + relativedelta(months=5)
+        )
+
+    def test_cancel(self):
+        self.acct_line.cancel()
+        self.assertTrue(self.acct_line.is_canceled)
+        self.acct_line.uncancel(fields.Date.today())
+        self.assertFalse(self.acct_line.is_canceled)
+
+    def test_check_has_not_date_end_has_successor(self):
+        self.acct_line.write({'date_end': False, 'is_auto_renew': False})
+        with self.assertRaises(ValidationError):
+            self.acct_line.plan_successor(
+                to_date('2016-03-01'), to_date('2016-09-01'), False
+            )
+
+    def test_check_has_not_date_end_is_auto_renew(self):
+        with self.assertRaises(ValidationError):
+            self.acct_line.write({'date_end': False, 'is_auto_renew': True})
+
+    def test_check_has_successor_is_auto_renew(self):
+        with self.assertRaises(ValidationError):
+            self.acct_line.plan_successor(
+                to_date('2016-03-01'), to_date('2018-09-01'), False
+            )
+
+    def test_search_contract_line_to_renew(self):
+        self.acct_line.write({'date_end': fields.Date.today()})
+        line_1 = self.acct_line.copy(
+            {'date_end': fields.Date.today() + relativedelta(months=1)}
+        )
+        line_2 = self.acct_line.copy(
+            {'date_end': fields.Date.today() - relativedelta(months=1)}
+        )
+        line_3 = self.acct_line.copy(
+            {'date_end': fields.Date.today() - relativedelta(months=2)}
+        )
+        self.acct_line.copy(
+            {'date_end': fields.Date.today() + relativedelta(months=2)}
+        )
+        to_renew = self.acct_line.search(
+            self.acct_line._contract_line_to_renew_domain()
+        )
+        self.assertEqual(
+            set(to_renew), set((self.acct_line, line_1, line_2, line_3))
+        )
+
+    def test_renew(self):
+        new_line = self.acct_line.renew()
+        self.assertFalse(self.acct_line.is_auto_renew)
+        self.assertTrue(new_line.is_auto_renew)
+        self.assertEqual(new_line.date_start, to_date('2019-01-01'))
+        self.assertEqual(new_line.date_end, to_date('2020-01-01'))

contract/views/abstract_contract_line.xml

@@ -1,22 +1,52 @@
 <?xml version="1.0" encoding="utf-8"?>
 <odoo>
 
-    <record id="account_abstract_analytic_contract_line_view_form" model="ir.ui.view">
-        <field name="name">Account Abstract Analytic Contract Line Form View</field>
+    <record id="account_abstract_analytic_contract_line_view_form"
+            model="ir.ui.view">
+        <field name="name">Account Abstract Analytic Contract Line Form View
+        </field>
         <field name="model">account.abstract.analytic.contract.line</field>
         <field name="arch" type="xml">
             <form>
-                <group>
-                    <field name="product_id"/>
-                    <field name="name"/>
-                    <field name="quantity" colspan="2"/>
-                    <field name="uom_id" colspan="2"/>
-                    <field name="automatic_price"/>
+                <sheet>
+                    <group col="4">
+                        <field colspan="4" name="product_id"/>
+                        <field colspan="4" name="name"/>
+                        <field colspan="2" name="quantity"/>
+                        <field colspan="2" name="uom_id"/>
+                        <field colspan="2" name="automatic_price"/>
                         <field name="specific_price" invisible="1"/>
-                    <field name="price_unit"
-                           attrs="{'readonly': [('automatic_price', '=', True)]}"
-                           colspan="2"/>
-                    <field name="discount" colspan="2"/>
+                        <field colspan="2" name="price_unit"
+                               attrs="{'readonly': [('automatic_price', '=', True)]}"/>
+                        <field colspan="2" name="discount"/>
+                    </group>
+                    <group col="4">
+                        <field colspan="2" name="is_auto_renew"/>
+                        <field colspan="2" name="is_canceled" invisible="1"/>
+                    </group>
+                    <group attrs="{'invisible':[('is_auto_renew', '=', False)]}">
+                        <group>
+                            <label for="auto_renew_interval"/>
+                            <div>
+                                <field name="auto_renew_interval"
+                                       class="oe_inline" nolabel="1"
+                                       attrs="{'required':[('is_auto_renew', '=', True)]}"/>
+                                <field name="auto_renew_rule_type"
+                                       class="oe_inline" nolabel="1"
+                                       attrs="{'required':[('is_auto_renew', '=', True)]}"/>
+                            </div>
+                        </group>
+                        <group>
+                            <label for="termination_notice_interval"/>
+                            <div>
+                                <field name="termination_notice_interval"
+                                       class="oe_inline" nolabel="1"
+                                       attrs="{'required':[('is_auto_renew', '=', True)]}"/>
+                                <field name="termination_notice_rule_type"
+                                       class="oe_inline" nolabel="1"
+                                       attrs="{'required':[('is_auto_renew', '=', True)]}"/>
+                            </div>
+                        </group>
                     </group>
                     <group name="recurrence_info">
                         <group>
@@ -26,12 +56,14 @@
                             <label for="recurring_interval"/>
                             <div>
                                 <field name="recurring_interval"
-                                   class="oe_inline"/>
+                                       class="oe_inline" nolabel="1"/>
                                 <field name="recurring_rule_type"
-                                   class="oe_inline"/>
+                                       class="oe_inline" nolabel="1"/>
                             </div>
                         </group>
+
                     </group>
+                </sheet>
             </form>
         </field>
     </record>

contract/views/contract.xml

@@ -1,19 +1,24 @@
 <?xml version="1.0" encoding="utf-8"?>
 <odoo>
 
-    <record id="account_analytic_account_recurring_form_form" model="ir.ui.view">
+    <record id="account_analytic_account_recurring_form_form"
+            model="ir.ui.view">
         <field name="name">Contract form</field>
         <field name="model">account.analytic.account</field>
-        <field name="inherit_id" ref="analytic.view_account_analytic_account_form"/>
+        <field name="inherit_id"
+               ref="analytic.view_account_analytic_account_form"/>
         <field name="mode">primary</field>
         <field name="priority" eval="9999"/>
         <field name="arch" type="xml">
             <field name="partner_id" position="attributes">
-                <attribute name="attrs">{'required': [('recurring_invoices', '=', True)]}</attribute>
+                <attribute name="attrs">{'required': [('recurring_invoices',
+                    '=', True)]}
+                </attribute>
             </field>
             <xpath expr="//div[@name='button_box']/.." position="before">
                 <header>
-                    <button name="action_contract_send" type="object" string="Send by Email" groups="base.group_user"/>
+                    <button name="action_contract_send" type="object"
+                            string="Send by Email" groups="base.group_user"/>
                 </header>
             </xpath>
             <xpath expr='//field[@name="code"]' position='before'>
@@ -34,15 +39,18 @@
                             class="oe_link"
                             groups="base.group_no_one"
                     />
-                    <button name="button_show_recurring_invoices"
-                            type="object"
+                    <button name="contract.act_recurring_invoices"
+                            type="action"
                             attrs="{'invisible': [('recurring_invoices','!=',True)]}"
                             string="⇒ Show recurring invoices"
                             class="oe_link"
                     />
                 </div>
-                <group col="4" attrs="{'invisible': [('recurring_invoices','!=',True)]}">
-                    <field name="contract_template_id" colspan="4" domain="['|', ('contract_type', '=', contract_type), ('contract_type', '=', False)]" context="{'default_contract_type': contract_type}"/>
+                <group col="4"
+                       attrs="{'invisible': [('recurring_invoices','!=',True)]}">
+                    <field name="contract_template_id" colspan="4"
+                           domain="['|', ('contract_type', '=', contract_type), ('contract_type', '=', False)]"
+                           context="{'default_contract_type': contract_type}"/>
                     <field name="journal_id"
                            domain="[('type', '=', contract_type),('company_id', '=', company_id)]"
                            attrs="{'required': [('recurring_invoices', '=', True)]}"
@@ -50,37 +58,85 @@
                     <field name="pricelist_id"/>
                     <field name="recurring_next_date"/>
                     <field name="date_end"/>
-                    <field name="company_id" groups="base.group_multi_company"/>
+                    <field name="company_id"
+                           groups="base.group_multi_company"/>
                 </group>
                 <label for="recurring_invoice_line_ids"
                        attrs="{'invisible': [('recurring_invoices','=',False)]}"
                 />
                 <div attrs="{'invisible': [('recurring_invoices','=',False)]}">
                     <field name="recurring_invoice_line_ids">
-                        <tree string="Account Analytic Lines">
+                        <tree decoration-muted="is_canceled">
                             <field name="sequence" widget="handle"/>
                             <field name="product_id"/>
                             <field name="name"/>
                             <field name="quantity"/>
                             <field name="uom_id"/>
                             <field name="automatic_price"/>
-                            <field name="price_unit" attrs="{'readonly': [('automatic_price', '=', True)]}"/>
+                            <field name="price_unit"
+                                   attrs="{'readonly': [('automatic_price', '=', True)]}"/>
                             <field name="specific_price" invisible="1"/>
                             <field name="discount" groups="base.group_no_one"/>
                             <field name="price_subtotal"/>
                             <field name="recurring_interval" invisible="1"/>
                             <field name="recurring_rule_type" invisible="1"/>
-                            <field name="recurring_invoicing_type" invisible="1"/>
+                            <field name="recurring_invoicing_type"
+                                   invisible="1"/>
                             <field name="date_start" required="1"/>
                             <field name="date_end"/>
                             <field name="recurring_next_date" required="1"/>
+                            <field name="create_invoice_visibility"
+                                   invisible="1"/>
+                            <field name="is_plan_successor_allowed" invisible="1"/>
+                            <field name="is_stop_plan_successor_allowed" invisible="1"/>
+                            <field name="is_stop_allowed" invisible="1"/>
+                            <field name="is_cancel_allowed" invisible="1"/>
+                            <field name="is_un_cancel_allowed" invisible="1"/>
+                            <field name="is_auto_renew" invisible="1"/>
+                            <field name="is_canceled" invisible="1"/>
+                            <button name="action_plan_successor"
+                                    string="Plan Start"
+                                    type="object"
+                                    icon="fa-calendar text-success"
+                                    attrs="{'invisible': [('is_plan_successor_allowed', '=', False)]}"/>
+                            <button name="action_stop_plan_successor"
+                                    string="Stop Plan Successor"
+                                    type="object"
+                                    icon="fa-pause text-muted"
+                                    attrs="{'invisible': [('is_stop_plan_successor_allowed', '=', False)]}"/>
+                            <button name="action_stop"
+                                    string="Stop"
+                                    type="object"
+                                    icon="fa-stop text-danger"
+                                    attrs="{'invisible': [('is_stop_allowed', '=', False)]}"/>
+                            <button name="cancel"
+                                    string="Cancel"
+                                    type="object"
+                                    icon="fa-ban text-danger"
+                                    attrs="{'invisible': [('is_cancel_allowed', '=', False)]}"/>
+                            <button name="action_uncancel"
+                                    string="Un-cancel"
+                                    type="object"
+                                    icon="fa-ban text-success"
+                                    attrs="{'invisible': [('is_un_cancel_allowed', '=', False)]}"/>
+                            <button name="renew"
+                                    string="Renew"
+                                    type="object"
+                                    icon="fa-fast-forward text-success"
+                                    groups="base.group_no_one"
+                                    attrs="{'invisible': [('is_auto_renew', '=', False)]}"/>
                         </tree>
                     </field>
                 </div>
                 <group string="Legend (for the markers inside invoice lines description)"
-                       name="group_legend" attrs="{'invisible': [('recurring_invoices','!=',True)]}">
-                    <p colspan="2"> <strong>#START#</strong>: Start date of the invoiced period</p>
-                    <p colspan="2"> <strong>#END#</strong>: End date of the invoiced period</p>
+                       name="group_legend"
+                       attrs="{'invisible': [('recurring_invoices','!=',True)]}">
+                    <p colspan="2"><strong>#START#</strong>: Start date of the
+                        invoiced period
+                    </p>
+                    <p colspan="2"><strong>#END#</strong>: End date of the
+                        invoiced period
+                    </p>
                 </group>
             </group>
         </field>
@@ -89,14 +145,17 @@
     <record id="account_analytic_account_sale_form" model="ir.ui.view">
         <field name="name">account.analytic.account.sale.form</field>
         <field name="model">account.analytic.account</field>
-        <field name="inherit_id" ref="account_analytic_account_recurring_form_form"/>
+        <field name="inherit_id"
+               ref="account_analytic_account_recurring_form_form"/>
         <field name="mode">primary</field>
         <field name="priority" eval="20"/>
         <field name="arch" type="xml">
             <field name="partner_id" position="attributes">
                 <attribute name="string">Customer</attribute>
                 <attribute name="domain">[('customer', '=', True)]</attribute>
-                <attribute name="context">{'default_customer': True, 'default_supplier': False}</attribute>
+                <attribute name="context">{'default_customer': True,
+                    'default_supplier': False}
+                </attribute>
             </field>
             <field name="journal_id" position="attributes">
                 <attribute name="domain">[('type', '=', 'sale'),('company_id', '=', company_id)]</attribute>
@@ -110,22 +169,27 @@
     <record id="account_analytic_account_purchase_form" model="ir.ui.view">
         <field name="name">account.analytic.account.purchase.form</field>
         <field name="model">account.analytic.account</field>
-        <field name="inherit_id" ref="account_analytic_account_recurring_form_form"/>
+        <field name="inherit_id"
+               ref="account_analytic_account_recurring_form_form"/>
         <field name="mode">primary</field>
         <field name="priority" eval="20"/>
         <field name="arch" type="xml">
             <field name="partner_id" position="attributes">
                 <attribute name="string">Supplier</attribute>
                 <attribute name="domain">[('supplier', '=', True)]</attribute>
-                <attribute name="context">{'default_customer': False, 'default_supplier': True}</attribute>
+                <attribute name="context">{'default_customer': False,
+                    'default_supplier': True}
+                </attribute>
             </field>
             <field name="journal_id" position="attributes">
                 <attribute name="domain">[('type', '=', 'purchase'),('company_id', '=', company_id)]</attribute>
             </field>
             <field name="product_id" position="attributes">
-                <attribute name="domain">[('purchase_ok', '=', True)]</attribute>
+                <attribute name="domain">[('purchase_ok', '=', True)]
+                </attribute>
             </field>
-            <xpath expr="//field[@name='recurring_invoice_line_ids']/tree/field[@name='automatic_price']" position="attributes">
+            <xpath expr="//field[@name='recurring_invoice_line_ids']/tree/field[@name='automatic_price']"
+                   position="attributes">
                 <attribute name="invisible">True</attribute>
             </xpath>
         </field>
@@ -135,7 +199,8 @@
     <record id="view_account_analytic_account_journal_tree" model="ir.ui.view">
         <field name="name">Contract list</field>
         <field name="model">account.analytic.account</field>
-        <field name="inherit_id" ref="analytic.view_account_analytic_account_list" />
+        <field name="inherit_id"
+               ref="analytic.view_account_analytic_account_list"/>
         <field name="mode">primary</field>
         <field name="priority" eval="9999"/>
         <field name="arch" type="xml">
@@ -146,13 +211,16 @@
     </record>
 
     <!-- Analytic Account search view for contract -->
-    <record id="view_account_analytic_account_contract_search" model="ir.ui.view">
+    <record id="view_account_analytic_account_contract_search"
+            model="ir.ui.view">
         <field name="name">Contract search</field>
         <field name="model">account.analytic.account</field>
-        <field name="inherit_id" ref="analytic.view_account_analytic_account_search"/>
+        <field name="inherit_id"
+               ref="analytic.view_account_analytic_account_search"/>
         <field name="arch" type="xml">
             <field name="partner_id" position="after">
-                <field name="partner_id" filter_domain="[('partner_id', 'child_of', self)]"
+                <field name="partner_id"
+                       filter_domain="[('partner_id', 'child_of', self)]"
                        string="Partner and dependents"/>
             </field>
             <field name="name" position="after">
@@ -189,14 +257,20 @@
     </record>
 
     <!-- Action Sales/Sales/Contracts -->
-    <record id="action_account_analytic_sale_overdue_all" model="ir.actions.act_window">
+    <record id="action_account_analytic_sale_overdue_all"
+            model="ir.actions.act_window">
         <field name="name">Customer Contracts</field>
         <field name="res_model">account.analytic.account</field>
         <field name="view_type">form</field>
         <field name="view_mode">tree,form</field>
         <field name="domain">[('contract_type', '=', 'sale')]</field>
-        <field name="context">{'is_contract':1, 'search_default_not_finished':1, 'search_default_recurring_invoices':1, 'default_recurring_invoices': 1, 'default_contract_type': 'sale'}</field>
-        <field name="search_view_id" ref="view_account_analytic_account_contract_search"/>
+        <field name="context">{'is_contract':1,
+            'search_default_not_finished':1,
+            'search_default_recurring_invoices':1,
+            'default_recurring_invoices': 1, 'default_contract_type': 'sale'}
+        </field>
+        <field name="search_view_id"
+               ref="view_account_analytic_account_contract_search"/>
         <field name="help" type="html">
             <p class="oe_view_nocontent_create">
                 Click to create a new contract.
@@ -204,18 +278,23 @@
         </field>
     </record>
 
-    <record id="action_account_analytic_sale_overdue_all_tree" model="ir.actions.act_window.view">
+    <record id="action_account_analytic_sale_overdue_all_tree"
+            model="ir.actions.act_window.view">
         <field name="sequence" eval="1"/>
         <field name="view_mode">tree</field>
-        <field name="view_id" ref="view_account_analytic_account_journal_tree"/>
-        <field name="act_window_id" ref="action_account_analytic_sale_overdue_all"/>
+        <field name="view_id"
+               ref="view_account_analytic_account_journal_tree"/>
+        <field name="act_window_id"
+               ref="action_account_analytic_sale_overdue_all"/>
     </record>
 
-    <record id="action_account_analytic_sale_overdue_all_form" model="ir.actions.act_window.view">
+    <record id="action_account_analytic_sale_overdue_all_form"
+            model="ir.actions.act_window.view">
         <field name="sequence" eval="2"/>
         <field name="view_mode">form</field>
         <field name="view_id" ref="account_analytic_account_sale_form"/>
-        <field name="act_window_id" ref="action_account_analytic_sale_overdue_all"/>
+        <field name="act_window_id"
+               ref="action_account_analytic_sale_overdue_all"/>
     </record>
 
     <menuitem id="menu_action_account_analytic_sale_overdue_all"
@@ -225,14 +304,21 @@
     />
 
     <!-- Action Purchases/Purchases/Contracts -->
-    <record id="action_account_analytic_purchase_overdue_all" model="ir.actions.act_window">
+    <record id="action_account_analytic_purchase_overdue_all"
+            model="ir.actions.act_window">
         <field name="name">Supplier Contracts</field>
         <field name="res_model">account.analytic.account</field>
         <field name="view_type">form</field>
         <field name="view_mode">tree,form</field>
         <field name="domain">[('contract_type', '=', 'purchase')]</field>
-        <field name="context">{'is_contract':1, 'search_default_not_finished':1, 'search_default_recurring_invoices':1, 'default_recurring_invoices': 1, 'default_contract_type': 'purchase'}</field>
-        <field name="search_view_id" ref="view_account_analytic_account_contract_search"/>
+        <field name="context">{'is_contract':1,
+            'search_default_not_finished':1,
+            'search_default_recurring_invoices':1,
+            'default_recurring_invoices': 1, 'default_contract_type':
+            'purchase'}
+        </field>
+        <field name="search_view_id"
+               ref="view_account_analytic_account_contract_search"/>
         <field name="help" type="html">
             <p class="oe_view_nocontent_create">
                 Click to create a new contract.
@@ -240,18 +326,23 @@
         </field>
     </record>
 
-    <record id="action_account_analytic_purchase_overdue_all_tree" model="ir.actions.act_window.view">
+    <record id="action_account_analytic_purchase_overdue_all_tree"
+            model="ir.actions.act_window.view">
         <field name="sequence" eval="1"/>
         <field name="view_mode">tree</field>
-        <field name="view_id" ref="view_account_analytic_account_journal_tree"/>
-        <field name="act_window_id" ref="action_account_analytic_purchase_overdue_all"/>
+        <field name="view_id"
+               ref="view_account_analytic_account_journal_tree"/>
+        <field name="act_window_id"
+               ref="action_account_analytic_purchase_overdue_all"/>
     </record>
 
-    <record id="action_account_analytic_purchase_overdue_all_form" model="ir.actions.act_window.view">
+    <record id="action_account_analytic_purchase_overdue_all_form"
+            model="ir.actions.act_window.view">
         <field name="sequence" eval="2"/>
         <field name="view_mode">form</field>
         <field name="view_id" ref="account_analytic_account_purchase_form"/>
-        <field name="act_window_id" ref="action_account_analytic_purchase_overdue_all"/>
+        <field name="act_window_id"
+               ref="action_account_analytic_purchase_overdue_all"/>
     </record>
 
     <menuitem id="menu_action_account_analytic_purchase_overdue_all"

contract/views/contract_line.xml

@@ -8,18 +8,27 @@
                ref="account_abstract_analytic_contract_line_view_form"/>
         <field name="mode">primary</field>
         <field name="arch" type="xml">
+            <xpath expr="//sheet" position="before">
+                <header>
+                    <field name="state" widget="statusbar"/>
+                </header>
+            </xpath>
             <xpath expr="//form" position="attributes">
                 <attribute name="string">Contract Line</attribute>
             </xpath>
             <xpath expr="//group[@name='recurrence_info']" position="inside">
                 <group>
                     <field name="date_start" required="1"/>
+                    <field name="recurring_next_date"/>
                 </group>
                 <group>
-                    <field name="date_end"/>
+                    <field name="date_end" attrs="{'required': [('is_auto_renew', '=', True)]}"/>
                 </group>
                 <group>
-                    <field name="recurring_next_date"/>
+                    <field name="predecessor_contract_line_id"/>
+                </group>
+                <group>
+                    <field name="successor_contract_line_id"/>
                 </group>
             </xpath>
         </field>

contract/wizards/__init__.py

@@ -0,0 +1 @@
+from . import contract_line_wizard

contract/wizards/contract_line_wizard.py

@@ -0,0 +1,48 @@
+# Copyright 2018 ACSONE SA/NV
+# License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl).
+
+from odoo import api, fields, models
+
+
+class AccountAnalyticInvoiceLineWizard(models.TransientModel):
+
+    _name = 'account.analytic.invoice.line.wizard'
+    _description = 'Contract Line Wizard'
+
+    date_start = fields.Date(string='Date Start')
+    date_end = fields.Date(string='Date End')
+    recurring_next_date = fields.Date(string='Next Invoice Date')
+    is_auto_renew = fields.Boolean(string="Auto Renew", default=False)
+    contract_line_id = fields.Many2one(
+        comodel_name="account.analytic.invoice.line",
+        string="Contract Line",
+        required=True,
+    )
+
+    @api.multi
+    def stop(self):
+        for wizard in self:
+            wizard.contract_line_id.stop(wizard.date_end)
+        return True
+
+    @api.multi
+    def plan_successor(self):
+        for wizard in self:
+            wizard.contract_line_id.plan_successor(
+                wizard.date_start, wizard.date_end, wizard.is_auto_renew
+            )
+        return True
+
+    @api.multi
+    def stop_plan_successor(self):
+        for wizard in self:
+            wizard.contract_line_id.stop_plan_successor(
+                wizard.date_start, wizard.date_end, wizard.is_auto_renew
+            )
+        return True
+
+    @api.multi
+    def uncancel(self):
+        for wizard in self:
+            wizard.contract_line_id.uncancel(wizard.recurring_next_date)
+        return True

contract/wizards/contract_line_wizard.xml

@@ -0,0 +1,99 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- Copyright 2018 ACSONE SA/NV
+     License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl). -->
+
+<odoo>
+
+    <record model="ir.ui.view" id="contract_line_wizard_stop_form_view">
+        <field name="name">contract.line.stop.wizard.form (in contract)</field>
+        <field name="model">account.analytic.invoice.line.wizard</field>
+        <field name="arch" type="xml">
+            <form>
+                <group>
+                    <field name="contract_line_id" invisible="True"/>
+                    <field string="Stop Date" name="date_end" required="True"/>
+                </group>
+                <footer>
+                    <button name="stop"
+                            string="Validate"
+                            class="btn-primary"
+                            type="object"/>
+                    <button string="Cancel"
+                            class="btn-default"
+                            special="cancel"/>
+                </footer>
+            </form>
+        </field>
+    </record>
+
+    <record model="ir.ui.view" id="contract_line_wizard_plan_successor_form_view">
+        <field name="name">contract.line.plan_successor.wizard.form (in contract)</field>
+        <field name="model">account.analytic.invoice.line.wizard</field>
+        <field name="arch" type="xml">
+            <form>
+                <group>
+                    <field name="contract_line_id" invisible="True"/>
+                    <field name="date_start" required="True"/>
+                    <field name="date_end" attrs="{'required': [('is_auto_renew', '=', True)]}"/>
+                    <field name="is_auto_renew"/>
+                </group>
+                <footer>
+                    <button name="plan_successor"
+                            string="Validate"
+                            class="btn-primary"
+                            type="object"/>
+                    <button string="Cancel"
+                            class="btn-default"
+                            special="cancel"/>
+                </footer>
+            </form>
+        </field>
+    </record>
+
+    <record model="ir.ui.view" id="contract_line_wizard_stop_plan_successor_form_view">
+        <field name="name">contract.line.stop_plan_successor.wizard.form (in contract)</field>
+        <field name="model">account.analytic.invoice.line.wizard</field>
+        <field name="arch" type="xml">
+            <form>
+                <group>
+                    <field name="contract_line_id" invisible="True"/>
+                    <field string="Suspension Start Date" name="date_start" required="True"/>
+                    <field string="Suspension End Date" name="date_end" required="True"/>
+                    <field name="is_auto_renew" invisible="1"/>
+                </group>
+                <footer>
+                    <button name="stop_plan_successor"
+                            string="Validate"
+                            class="btn-primary"
+                            type="object"/>
+                    <button string="Cancel"
+                            class="btn-default"
+                            special="cancel"/>
+                </footer>
+            </form>
+        </field>
+    </record>
+
+    <record model="ir.ui.view" id="contract_line_wizard_uncancel_form_view">
+        <field name="name">contract.line.stop_plan_successor.wizard.form (in contract)</field>
+        <field name="model">account.analytic.invoice.line.wizard</field>
+        <field name="arch" type="xml">
+            <form>
+                <group>
+                    <field name="contract_line_id" invisible="True"/>
+                    <field name="recurring_next_date" required="True"/>
+                </group>
+                <footer>
+                    <button name="uncancel"
+                            string="Validate"
+                            class="btn-primary"
+                            type="object"/>
+                    <button string="Cancel"
+                            class="btn-default"
+                            special="cancel"/>
+                </footer>
+            </form>
+        </field>
+    </record>
+
+</odoo>