# -*- coding: utf-8 -*- # © 2014-2015 ACSONE SA/NV () # License AGPL-3.0 or later (https://www.gnu.org/licenses/agpl.html). import datetime import dateutil import logging import re import time import traceback import pytz from openerp import api, exceptions, fields, models, _ from openerp.tools.safe_eval import safe_eval from .aep import AccountingExpressionProcessor as AEP from .aggregate import _sum, _avg, _min, _max from .accounting_none import AccountingNone _logger = logging.getLogger(__name__) class AutoStruct(object): def __init__(self, **kwargs): for k, v in kwargs.items(): setattr(self, k, v) def _get_selection_label(selection, value): for v, l in selection: if v == value: return l return '' def _utc_midnight(d, tz_name, add_day=0): d = fields.Datetime.from_string(d) + datetime.timedelta(days=add_day) utc_tz = pytz.timezone('UTC') context_tz = pytz.timezone(tz_name) local_timestamp = context_tz.localize(d, is_dst=False) return fields.Datetime.to_string(local_timestamp.astimezone(utc_tz)) def _python_var(var_str): return re.sub(r'\W|^(?=\d)', '_', var_str).lower() def _is_valid_python_var(name): return re.match("[_A-Za-z][_a-zA-Z0-9]*$", name) class MisReportKpi(models.Model): """ A KPI is an element (ie a line) of a MIS report. In addition to a name and description, it has an expression to compute it based on queries defined in the MIS report. It also has various informations defining how to render it (numeric or percentage or a string, a prefix, a suffix, divider) and how to render comparison of two values of the KPI. KPI's have a sequence and are ordered inside the MIS report. """ _name = 'mis.report.kpi' name = fields.Char(size=32, required=True, string='Name') description = fields.Char(required=True, string='Description', translate=True) expression = fields.Char(required=True, string='Expression') default_css_style = fields.Char(string='Default CSS style') css_style = fields.Char(string='CSS style expression') type = fields.Selection([('num', _('Numeric')), ('pct', _('Percentage')), ('str', _('String'))], required=True, string='Type', default='num') divider = fields.Selection([('1e-6', _('µ')), ('1e-3', _('m')), ('1', _('1')), ('1e3', _('k')), ('1e6', _('M'))], string='Factor', default='1') dp = fields.Integer(string='Rounding', default=0) prefix = fields.Char(size=16, string='Prefix') suffix = fields.Char(size=16, string='Suffix') compare_method = fields.Selection([('diff', _('Difference')), ('pct', _('Percentage')), ('none', _('None'))], required=True, string='Comparison Method', default='pct') sequence = fields.Integer(string='Sequence', default=100) report_id = fields.Many2one('mis.report', string='Report', ondelete='cascade') _order = 'sequence, id' @api.one @api.constrains('name') def _check_name(self): if not _is_valid_python_var(self.name): raise exceptions.Warning(_('The name must be a valid ' 'python identifier')) @api.onchange('name') def _onchange_name(self): if self.name and not _is_valid_python_var(self.name): return { 'warning': { 'title': 'Invalid name %s' % self.name, 'message': 'The name must be a valid python identifier' } } @api.onchange('description') def _onchange_description(self): """ construct name from description """ if self.description and not self.name: self.name = _python_var(self.description) @api.onchange('type') def _onchange_type(self): if self.type == 'num': self.compare_method = 'pct' self.divider = '1' self.dp = 0 elif self.type == 'pct': self.compare_method = 'diff' self.divider = '1' self.dp = 0 elif self.type == 'str': self.compare_method = 'none' self.divider = '' self.dp = 0 def render(self, lang_id, value): """ render a KPI value as a unicode string, ready for display """ assert len(self) == 1 if value is None or value is AccountingNone: return '' elif self.type == 'num': return self._render_num(lang_id, value, self.divider, self.dp, self.prefix, self.suffix) elif self.type == 'pct': return self._render_num(lang_id, value, 0.01, self.dp, '', '%') else: return unicode(value) def render_comparison(self, lang_id, value, base_value, average_value, average_base_value): """ render the comparison of two KPI values, ready for display If the difference is 0, an empty string is returned. """ assert len(self) == 1 if value is None: value = AccountingNone if base_value is None: base_value = AccountingNone if self.type == 'pct': delta = value - base_value if delta and round(delta, self.dp) != 0: return self._render_num( lang_id, delta, 0.01, self.dp, '', _('pp'), sign='+') elif self.type == 'num': if value and average_value: value = value / float(average_value) if base_value and average_base_value: base_value = base_value / float(average_base_value) if self.compare_method == 'diff': delta = value - base_value if delta and round(delta, self.dp) != 0: return self._render_num( lang_id, delta, self.divider, self.dp, self.prefix, self.suffix, sign='+') elif self.compare_method == 'pct': if base_value and round(base_value, self.dp) != 0: delta = (value - base_value) / abs(base_value) if delta and round(delta, self.dp) != 0: return self._render_num( lang_id, delta, 0.01, self.dp, '', '%', sign='+') return '' def _render_num(self, lang_id, value, divider, dp, prefix, suffix, sign='-'): divider_label = _get_selection_label( self._columns['divider'].selection, divider) if divider_label == '1': divider_label = '' # format number following user language value = round(value / float(divider or 1), dp) or 0 value = self.env['res.lang'].browse(lang_id).format( '%%%s.%df' % (sign, dp), value, grouping=True) value = u'%s\N{NARROW NO-BREAK SPACE}%s\N{NO-BREAK SPACE}%s%s' % \ (prefix or '', value, divider_label, suffix or '') value = value.replace('-', u'\N{NON-BREAKING HYPHEN}') return value class MisReportQuery(models.Model): """ A query to fetch arbitrary data for a MIS report. A query works on a model and has a domain and list of fields to fetch. At runtime, the domain is expanded with a "and" on the date/datetime field. """ _name = 'mis.report.query' @api.one @api.depends('field_ids') def _compute_field_names(self): field_names = [field.name for field in self.field_ids] self.field_names = ', '.join(field_names) name = fields.Char(size=32, required=True, string='Name') model_id = fields.Many2one('ir.model', required=True, string='Model') field_ids = fields.Many2many('ir.model.fields', required=True, string='Fields to fetch') field_names = fields.Char(compute='_compute_field_names', string='Fetched fields name') aggregate = fields.Selection([('sum', _('Sum')), ('avg', _('Average')), ('min', _('Min')), ('max', _('Max'))], string='Aggregate') date_field = fields.Many2one('ir.model.fields', required=True, string='Date field', domain=[('ttype', 'in', ('date', 'datetime'))]) domain = fields.Char(string='Domain') report_id = fields.Many2one('mis.report', string='Report', ondelete='cascade') _order = 'name' @api.one @api.constrains('name') def _check_name(self): if not _is_valid_python_var(self.name): raise exceptions.Warning(_('The name must be a valid ' 'python identifier')) class MisReport(models.Model): """ A MIS report template (without period information) The MIS report holds: * a list of explicit queries; the result of each query is stored in a variable with same name as a query, containing as list of data structures populated with attributes for each fields to fetch; when queries have an aggregate method and no fields to group, it returns a data structure with the aggregated fields * a list of KPI to be evaluated based on the variables resulting from the accounting data and queries (KPI expressions can references queries and accounting expression - see AccoutingExpressionProcessor) """ _name = 'mis.report' name = fields.Char(required=True, string='Name', translate=True) description = fields.Char(required=False, string='Description', translate=True) query_ids = fields.One2many('mis.report.query', 'report_id', string='Queries', copy=True) kpi_ids = fields.One2many('mis.report.kpi', 'report_id', string='KPI\'s', copy=True) @api.one def copy(self, default=None): default = dict(default or {}) default['name'] = _('%s (copy)') % self.name return super(MisReport, self).copy(default) # TODO: kpi name cannot be start with query name @api.multi def _prepare_aep(self): self.ensure_one() aep = AEP(self.env) for kpi in self.kpi_ids: aep.parse_expr(kpi.expression) aep.done_parsing() return aep @api.multi def _fetch_queries(self, date_from, date_to, get_additional_query_filter=None): self.ensure_one() res = {} for query in self.query_ids: model = self.env[query.model_id.model] eval_context = { 'env': self.env, 'time': time, 'datetime': datetime, 'dateutil': dateutil, # deprecated 'uid': self.env.uid, 'context': self.env.context, } domain = query.domain and \ safe_eval(query.domain, eval_context) or [] if get_additional_query_filter: domain.extend(get_additional_query_filter(query)) if query.date_field.ttype == 'date': domain.extend([(query.date_field.name, '>=', date_from), (query.date_field.name, '<=', date_to)]) else: datetime_from = _utc_midnight( date_from, self._context.get('tz', 'UTC')) datetime_to = _utc_midnight( date_to, self._context.get('tz', 'UTC'), add_day=1) domain.extend([(query.date_field.name, '>=', datetime_from), (query.date_field.name, '<', datetime_to)]) field_names = [f.name for f in query.field_ids] if not query.aggregate: data = model.search_read(domain, field_names) res[query.name] = [AutoStruct(**d) for d in data] elif query.aggregate == 'sum': data = model.read_group( domain, field_names, []) s = AutoStruct(count=data[0]['__count']) for field_name in field_names: v = data[0][field_name] setattr(s, field_name, v) res[query.name] = s else: data = model.search_read(domain, field_names) s = AutoStruct(count=len(data)) if query.aggregate == 'min': agg = _min elif query.aggregate == 'max': agg = _max elif query.aggregate == 'avg': agg = _avg for field_name in field_names: setattr(s, field_name, agg([d[field_name] for d in data])) res[query.name] = s return res @api.multi def _compute(self, lang_id, aep, date_from, date_to, target_move, get_additional_move_line_filter=None, get_additional_query_filter=None, period_id=None): """ Evaluate a report for a given period. It returns a dictionary keyed on kpi.name with the following values: * val: the evaluated kpi, or None if there is no data or an error * val_r: the rendered kpi as a string, or #ERR, #DIV * val_c: a comment (explaining the error, typically) * style: the css style of the kpi (may change in the future!) * prefix: a prefix to display in front of the rendered value * suffix: a prefix to display after rendered value * dp: the decimal precision of the kpi * is_percentage: true if the kpi is of percentage type (may change in the future!) * expr: the kpi expression * drilldown: true if the drilldown method of mis.report.instance.period is going to do something useful in this kpi :param lang_id: id of a res.lang object :param aep: an AccountingExpressionProcessor instance created using _prepare_aep() :param date_from, date_to: the starting and ending date :param target_move: all|posted :param get_additional_move_line_filter: a bound method that takes no arguments and returns a domain compatible with account.move.line :param get_additional_query_filter: a bound method that takes a single query argument and returns a domain compatible with the query underlying model :param period_id: an optional opaque value that is returned as query_id field in the result (may change in the future!) """ self.ensure_one() res = {} localdict = { 'registry': self.pool, 'sum': _sum, 'min': _min, 'max': _max, 'len': len, 'avg': _avg, 'AccountingNone': AccountingNone, } localdict.update(self._fetch_queries( date_from, date_to, get_additional_query_filter)) if get_additional_move_line_filter: additional_move_line_filter = get_additional_move_line_filter() aep.do_queries(date_from, date_to, target_move, additional_move_line_filter) compute_queue = self.kpi_ids recompute_queue = [] while True: for kpi in compute_queue: try: kpi_val_comment = kpi.name + " = " + kpi.expression kpi_eval_expression = aep.replace_expr(kpi.expression) kpi_val = safe_eval(kpi_eval_expression, localdict) localdict[kpi.name] = kpi_val except ZeroDivisionError: kpi_val = None kpi_val_rendered = '#DIV/0' kpi_val_comment += '\n\n%s' % (traceback.format_exc(),) except (NameError, ValueError): recompute_queue.append(kpi) kpi_val = None kpi_val_rendered = '#ERR' kpi_val_comment += '\n\n%s' % (traceback.format_exc(),) except: kpi_val = None kpi_val_rendered = '#ERR' kpi_val_comment += '\n\n%s' % (traceback.format_exc(),) else: kpi_val_rendered = kpi.render(lang_id, kpi_val) try: kpi_style = None if kpi.css_style: kpi_style = safe_eval(kpi.css_style, localdict) except: _logger.warning("error evaluating css stype expression %s", kpi.css_style, exc_info=True) kpi_style = None drilldown = (kpi_val is not None and AEP.has_account_var(kpi.expression)) res[kpi.name] = { 'val': None if kpi_val is AccountingNone else kpi_val, 'val_r': kpi_val_rendered, 'val_c': kpi_val_comment, 'style': kpi_style, 'prefix': kpi.prefix, 'suffix': kpi.suffix, 'dp': kpi.dp, 'is_percentage': kpi.type == 'pct', 'period_id': period_id, 'expr': kpi.expression, 'drilldown': drilldown, } if len(recompute_queue) == 0: # nothing to recompute, we are done break if len(recompute_queue) == len(compute_queue): # could not compute anything in this iteration # (ie real Value errors or cyclic dependency) # so we stop trying break # try again compute_queue = recompute_queue recompute_queue = [] return res class MisReportInstancePeriod(models.Model): """ A MIS report instance has the logic to compute a report template for a given date period. Periods have a duration (day, week, fiscal period) and are defined as an offset relative to a pivot date. """ @api.one @api.depends('report_instance_id.pivot_date', 'type', 'offset', 'duration') def _compute_dates(self): self.date_from = False self.date_to = False self.valid = False d = fields.Date.from_string(self.report_instance_id.pivot_date) if self.type == 'd': date_from = d + datetime.timedelta(days=self.offset) date_to = date_from + \ datetime.timedelta(days=self.duration - 1) self.date_from = fields.Date.to_string(date_from) self.date_to = fields.Date.to_string(date_to) self.valid = True elif self.type == 'w': date_from = d - datetime.timedelta(d.weekday()) date_from = date_from + datetime.timedelta(days=self.offset * 7) date_to = date_from + \ datetime.timedelta(days=(7 * self.duration) - 1) self.date_from = fields.Date.to_string(date_from) self.date_to = fields.Date.to_string(date_to) self.valid = True _name = 'mis.report.instance.period' name = fields.Char(size=32, required=True, string='Description', translate=True) type = fields.Selection([('d', _('Day')), ('w', _('Week')), # ('fy', _('Fiscal Year')) ], required=True, string='Period type') offset = fields.Integer(string='Offset', help='Offset from current period', default=-1) duration = fields.Integer(string='Duration', help='Number of periods', default=1) date_from = fields.Date(compute='_compute_dates', string="From") date_to = fields.Date(compute='_compute_dates', string="To") valid = fields.Boolean(compute='_compute_dates', type='boolean', string='Valid') sequence = fields.Integer(string='Sequence', default=100) report_instance_id = fields.Many2one('mis.report.instance', string='Report Instance', ondelete='cascade') comparison_column_ids = fields.Many2many( comodel_name='mis.report.instance.period', relation='mis_report_instance_period_rel', column1='period_id', column2='compare_period_id', string='Compare with') normalize_factor = fields.Integer( string='Factor', help='Factor to use to normalize the period (used in comparison', default=1) _order = 'sequence, id' _sql_constraints = [ ('duration', 'CHECK (duration>0)', 'Wrong duration, it must be positive!'), ('normalize_factor', 'CHECK (normalize_factor>0)', 'Wrong normalize factor, it must be positive!'), ('name_unique', 'unique(name, report_instance_id)', 'Period name should be unique by report'), ] @api.multi def _get_additional_move_line_filter(self): """ Prepare a filter to apply on all move lines This filter is applied with a AND operator on all accounting expression domains. This hook is intended to be inherited, and is useful to implement filtering on analytic dimensions or operational units. Returns an Odoo domain expression (a python list) compatible with account.move.line.""" self.ensure_one() return [] @api.multi def _get_additional_query_filter(self, query): """ Prepare an additional filter to apply on the query This filter is combined to the query domain with a AND operator. This hook is intended to be inherited, and is useful to implement filtering on analytic dimensions or operational units. Returns an Odoo domain expression (a python list) compatible with the model of the query.""" self.ensure_one() return [] @api.multi def drilldown(self, expr): self.ensure_one() if AEP.has_account_var(expr): aep = AEP(self.env) aep.parse_expr(expr) aep.done_parsing() domain = aep.get_aml_domain_for_expr( expr, self.date_from, self.date_to, self.report_instance_id.target_move) domain.extend(self._get_additional_move_line_filter()) return { 'name': expr + ' - ' + self.name, 'domain': domain, 'type': 'ir.actions.act_window', 'res_model': 'account.move.line', 'views': [[False, 'list'], [False, 'form']], 'view_type': 'list', 'view_mode': 'list', 'target': 'current', } else: return False @api.multi def _compute(self, lang_id, aep): self.ensure_one() return self.report_instance_id.report_id._compute( lang_id, aep, self.date_from, self.date_to, self.report_instance_id.target_move, self._get_additional_move_line_filter, self._get_additional_query_filter, period_id=self.id, ) class MisReportInstance(models.Model): """The MIS report instance combines everything to compute a MIS report template for a set of periods.""" @api.one @api.depends('date') def _compute_pivot_date(self): if self.date: self.pivot_date = self.date else: self.pivot_date = fields.Date.context_today(self) _name = 'mis.report.instance' name = fields.Char(required=True, string='Name', translate=True) description = fields.Char(required=False, string='Description', translate=True) date = fields.Date(string='Base date', help='Report base date ' '(leave empty to use current date)') pivot_date = fields.Date(compute='_compute_pivot_date', string="Pivot date") report_id = fields.Many2one('mis.report', required=True, string='Report') period_ids = fields.One2many('mis.report.instance.period', 'report_instance_id', required=True, string='Periods', copy=True) target_move = fields.Selection([('posted', 'All Posted Entries'), ('all', 'All Entries')], string='Target Moves', required=True, default='posted') company_id = fields.Many2one(comodel_name='res.company', string='Company') landscape_pdf = fields.Boolean(string='Landscape PDF') @api.one def copy(self, default=None): default = dict(default or {}) default['name'] = _('%s (copy)') % self.name return super(MisReportInstance, self).copy(default) def _format_date(self, lang_id, date): # format date following user language date_format = self.env['res.lang'].browse(lang_id).date_format return datetime.datetime.strftime( fields.Date.from_string(date), date_format) @api.multi def preview(self): assert len(self) == 1 view_id = self.env.ref('mis_builder.' 'mis_report_instance_result_view_form') return { 'type': 'ir.actions.act_window', 'res_model': 'mis.report.instance', 'res_id': self.id, 'view_mode': 'form', 'view_type': 'form', 'view_id': view_id.id, 'target': 'current', } @api.multi def print_pdf(self): self.ensure_one() return { 'name': 'MIS report instance QWEB PDF report', 'model': 'mis.report.instance', 'type': 'ir.actions.report.xml', 'report_name': 'mis_builder.report_mis_report_instance', 'report_type': 'qweb-pdf', 'context': self.env.context, } @api.multi def export_xls(self): self.ensure_one() return { 'name': 'MIS report instance XLSX report', 'model': 'mis.report.instance', 'type': 'ir.actions.report.xml', 'report_name': 'mis.report.instance.xlsx', 'report_type': 'xlsx', 'context': self.env.context, } @api.multi def display_settings(self): assert len(self.ids) <= 1 view_id = self.env.ref('mis_builder.mis_report_instance_view_form') return { 'type': 'ir.actions.act_window', 'res_model': 'mis.report.instance', 'res_id': self.id if self.id else False, 'view_mode': 'form', 'view_type': 'form', 'views': [(view_id.id, 'form')], 'view_id': view_id.id, 'target': 'current', } @api.multi def compute(self): self.ensure_one() aep = self.report_id._prepare_aep() # fetch user language only once # TODO: is this necessary? lang = self.env.user.lang if not lang: lang = 'en_US' lang_id = self.env['res.lang'].search([('code', '=', lang)]).id # compute kpi values for each period kpi_values_by_period_ids = {} for period in self.period_ids: if not period.valid: continue kpi_values = period._compute(lang_id, aep) kpi_values_by_period_ids[period.id] = kpi_values # prepare header and content header = [] header.append({ 'kpi_name': '', 'cols': [] }) content = [] rows_by_kpi_name = {} for kpi in self.report_id.kpi_ids: rows_by_kpi_name[kpi.name] = { 'kpi_name': kpi.description, 'cols': [], 'default_style': kpi.default_css_style } content.append(rows_by_kpi_name[kpi.name]) # populate header and content for period in self.period_ids: if not period.valid: continue # add the column header if period.duration > 1 or period.type == 'w': # from, to date_from = self._format_date(lang_id, period.date_from) date_to = self._format_date(lang_id, period.date_to) header_date = _('from %s to %s') % (date_from, date_to) else: header_date = self._format_date(lang_id, period.date_from) header[0]['cols'].append(dict(name=period.name, date=header_date)) # add kpi values kpi_values = kpi_values_by_period_ids[period.id] for kpi_name in kpi_values: rows_by_kpi_name[kpi_name]['cols'].append(kpi_values[kpi_name]) # add comparison columns for compare_col in period.comparison_column_ids: compare_kpi_values = \ kpi_values_by_period_ids.get(compare_col.id) if compare_kpi_values: # add the comparison column header header[0]['cols'].append( dict(name=_('%s vs %s') % (period.name, compare_col.name), date='')) # add comparison values for kpi in self.report_id.kpi_ids: rows_by_kpi_name[kpi.name]['cols'].append({ 'val_r': kpi.render_comparison( lang_id, kpi_values[kpi.name]['val'], compare_kpi_values[kpi.name]['val'], period.normalize_factor, compare_col.normalize_factor) }) return {'header': header, 'content': content}