[IMP] add sequence for loan issue line and call sequence on validation

easy_my_coop_loan/__manifest__.py

@@ -24,6 +24,7 @@
         "report/loan_issue_line_report.xml",
         "report/loan_report.xml",
         "data/mail_template_data.xml",
+        "data/loan_data.xml"
     ],
     "demo": [
         "demo/coop.xml"

easy_my_coop_loan/data/loan_data.xml

@@ -0,0 +1,12 @@
+<odoo noupdate="1">
+    <record id="sequence_loan_issue_line" model="ir.sequence">
+        <field name="name">Loan issue line</field>
+        <field name="code">loan.issue.line.sequence</field>
+        <field name="prefix">LOAN/%(year)s/</field>
+        <field eval="1" name="number_next"/>
+        <field eval="1" name="number_increment"/>
+        <field eval="True" name="use_date_range"/>
+        <field eval="False" name="company_id"/>
+        <field name="padding">4</field>
+    </record>
+</odoo>

easy_my_coop_loan/models/loan_issue_line.py

@@ -21,7 +21,8 @@ class LoanIssueLine(models.Model):
             line.amount = line.face_value * line.quantity
 
     name = fields.Char(
-        String="Name"
+        String="Name",
+        readonly=True,
     )
     reference = fields.Char(
         string="Reference",
@@ -112,8 +113,13 @@ class LoanIssueLine(models.Model):
 
     @api.multi
     def action_validate(self):
+        sequence_id = self.env.ref(
+            "easy_my_coop_loan.sequence_loan_issue_line",
+            False
+        )
         for line in self:
-            line.write({"state": "subscribed"})
+            loan_line_num = sequence_id.next_by_id()
+            line.write({"name": loan_line_num, "state": "subscribed"})
 
     @api.multi
     def action_request_payment(self):
@@ -202,7 +208,7 @@ class LoanIssueLine(models.Model):
             days = self.get_number_of_days(line.payment_date.year)
             interim_amount = line.amount * rate * (diff_days / days)
 
-            due_date = start_date + relativedelta(years=+loan_term)
+            due_date = start_date + relativedelta(years=loan_term)
 
             for year in range(1, loan_term + 1):
                 interest = accrued_amount * rate

easy_my_coop_loan/views/loan_line_view.xml

@@ -11,6 +11,7 @@
         <field name="model">loan.issue.line</field>
         <field name="arch" type="xml">
             <tree string="Loans">
+                <field name="name"/>
                 <field name="partner_id"/>
                 <field name="loan_issue_id"/>
                 <field name="quantity"/>
@@ -48,6 +49,7 @@
                 <sheet>
                     <group>
                         <group>
+                            <field name="name"/>
                             <field name="partner_id"/>
                             <field name="loan_issue_id"/>
                             <field name="quantity"/>