[ADD] fixed date functionalities

account_payment_term_manual/models/account_payment_term.py

@@ -1,7 +1,9 @@
 # Copyright 2024 KMEE
 # License AGPL-3.0 or later (https://www.gnu.org/licenses/agpl).
 
-from odoo import models
+from dateutil.relativedelta import relativedelta
+
+from odoo import fields, models
 
 
 class AccountPaymentTerm(models.Model):
@@ -15,6 +17,8 @@ def compute(self, value, date_ref=False, currency=None):
         manual_payment_term_id must have manual lines (else just use normal term_id)
         if self == manual_payment_term_id there's no need to override this method
 
+        complete override for terms with fixed dates > look for alternatives
+
         """
         manual_payment_term_id = self.env.context.get("manual_payment_term_id")
         if (
@@ -25,4 +29,58 @@ def compute(self, value, date_ref=False, currency=None):
             return manual_payment_term_id.compute(
                 value, date_ref=date_ref, currency=currency
             )
+
+        if "custom" in self.line_ids.mapped("option"):
+            # No alternative other than complete method override
+            # can't call super
+            return self.compute_override(value, date_ref=date_ref, currency=currency)
+
         return super().compute(value, date_ref=date_ref, currency=currency)
+
+    def compute_override(self, value, date_ref=False, currency=None):
+        """
+        Full override of compute method to fixed date manual lines if set.
+        """
+        self.ensure_one()
+        date_ref = date_ref or fields.Date.context_today(self)
+        amount = value
+        sign = value < 0 and -1 or 1
+        result = []
+        if not currency and self.env.context.get("currency_id"):
+            currency = self.env["res.currency"].browse(self.env.context["currency_id"])
+        elif not currency:
+            currency = self.env.company.currency_id
+        for line in self.line_ids:
+            if line.value == "fixed":
+                amt = sign * currency.round(line.value_amount)
+            elif line.value == "percent":
+                amt = currency.round(value * (line.value_amount / 100.0))
+            elif line.value == "balance":
+                amt = currency.round(amount)
+            next_date = fields.Date.from_string(date_ref)
+            if line.option == "day_after_invoice_date":
+                next_date += relativedelta(days=line.days)
+                if line.day_of_the_month > 0:
+                    months_delta = (line.day_of_the_month < next_date.day) and 1 or 0
+                    next_date += relativedelta(
+                        day=line.day_of_the_month, months=months_delta
+                    )
+            elif line.option == "after_invoice_month":
+                next_first_date = next_date + relativedelta(
+                    day=1, months=1
+                )  # Getting 1st of next month
+                next_date = next_first_date + relativedelta(days=line.days - 1)
+            elif line.option == "day_following_month":
+                next_date += relativedelta(day=line.days, months=1)
+            elif line.option == "day_current_month":
+                next_date += relativedelta(day=line.days, months=0)
+            elif line.option == "custom":
+                next_date = line.fixed_date
+            result.append((fields.Date.to_string(next_date), amt))
+            amount -= amt
+        amount = sum(amt for _, amt in result)
+        dist = currency.round(value - amount)
+        if dist:
+            last_date = result and result[-1][0] or fields.Date.context_today(self)
+            result.append((last_date, dist))
+        return sorted(result, key=lambda k: k[0])

account_payment_term_manual/models/account_payment_term_manual.py

@@ -77,6 +77,14 @@ class AccountPaymentTermLineManual(models.Model):
         copy=False,
     )
 
+    option = fields.Selection(
+        selection_add=[("custom", "Custom")],
+        ondelete={
+            "custom": "set default",
+        },
+        default="day_after_invoice_date",
+    )
+
     @api.constrains(
         "value",
         "value_amount",
@@ -87,4 +95,13 @@ class AccountPaymentTermLineManual(models.Model):
         "fixed_date",
     )
     def _check_manual_payment_term_id(self):
+        for record in self:
+            if record.fixed_date and record.option != "custom":
+                record.option = "custom"
         self.manual_payment_id.set_as_edited()
+
+    @api.onchange("fixed_date")
+    def _onchange_fixed_date(self):
+        for record in self:
+            if record.fixed_date:
+                record.option = "custom"

account_payment_term_manual/views/account_invoice_view.xml

@@ -46,6 +46,7 @@
                         />
                         <field name="days" />
                         <field name="option" string="" />
+                        <field name="fixed_date" />
                         <field name="day_of_the_month" string="Day of the month" />
                     </tree>
                 </field>
@@ -79,6 +80,7 @@
                         />
                         <field name="days" />
                         <field name="option" string="" />
+                        <field name="fixed_date" />
                         <field name="day_of_the_month" string="Day of the month" />
                     </tree>
                 </field>

account_payment_term_manual/views/account_payment_term_manual_views.xml

@@ -9,8 +9,8 @@
             <field name="inherit_id" ref="account.view_payment_term_line_tree" />
             <field name="mode">primary</field>
             <field name="arch" type="xml">
-                <field name="value" position="attributes">
-                    <attribute name="invisible">0</attribute>
+                <field name="option" position="after">
+                    <field name="fixed_date" />
                 </field>
             </field>
         </record>

account_payment_term_manual_purchase/views/purchase_order.xml

@@ -43,6 +43,7 @@
                             />
                             <field name="days" />
                             <field name="option" string="" />
+                            <field name="fixed_date" />
                             <field name="day_of_the_month" string="Day of the month" />
                         </tree>
                     </field>

account_payment_term_manual_sale/views/sale_order.xml

@@ -43,6 +43,7 @@
                             />
                             <field name="days" />
                             <field name="option" string="" />
+                            <field name="fixed_date" />
                             <field name="day_of_the_month" string="Day of the month" />
                         </tree>
                     </field>