[ADD] products_orderby_invoice: Imp dropdown in SO/RFQ Based on Invoice History

Modified the product dropdown logic in Sales Order (SO) and Request for Quotation
 (RFQ) forms to prioritize products based on the customer's invoice history.

- Dropdown now shows products ordered by the customer in previous invoices
- Ordering is based on most recent to oldest invoices
- Aims to make product selection faster and more relevant for recurring customers

Author: metu-odoo

products_orderby_invoice/__init__.py

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+# Part of Odoo. See LICENSE file for full copyright and licensing details.
+
+from . import models

products_orderby_invoice/__manifest__.py

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+# Part of Odoo. See LICENSE file for full copyright and licensing details.
+
+{
+    'name': 'Products Orderby Invoice',
+    'version': '1.0',
+    'depends': ['sale_management', 'account', 'stock', 'purchase'],
+    'data': [
+        'views/product_views.xml',
+    ],
+    'installable': True,
+}

products_orderby_invoice/models/__init__.py

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+# Part of Odoo. See LICENSE file for full copyright and licensing details.
+
+from . import product_template
+from . import product_product

products_orderby_invoice/models/product_product.py

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+from odoo import api, fields, models
+
+class ProductProduct(models.Model):
+    _inherit = 'product.product'
+
+
+    surplus_qty = fields.Float(string='Surplus Quantity', compute='_compute_surplus_qty')
+
+    @api.depends('virtual_available', 'qty_available')
+    def _compute_surplus_qty(self):
+        for rec in self:
+            rec.surplus_qty = rec.qty_available - rec.virtual_available
+
+    @api.model
+    def name_search(self, name, args=None, operator='ilike', limit=100):
+        print("===============This is triggered====================")
+        args = list(args) if args else []
+        partner_id = self.env.context.get('partner_id')
+        results = []
+        matched_ids = set()
+
+        if partner_id:
+            lines = self.env['account.move.line'].search([
+                ('move_id.move_type', '=', 'out_invoice'),
+                ('move_id.partner_id', '=', partner_id),
+                ('move_id.state', '=', 'posted'),
+                ('product_id', '!=', False),
+            ])
+
+            lines = sorted(lines, key=lambda l: l.move_id.invoice_date or l.create_date, reverse=True)
+
+            name_lower = name.lower() if name else ''
+
+            for line in lines:
+                product = line.product_id
+                if product.id in matched_ids:
+                    continue
+                if not name or (operator == 'ilike' and name_lower in product.name.lower()):
+                    results.append((product.id, product.display_name))
+                    matched_ids.add(product.id)
+                if len(results) >= limit:
+                    break
+
+        remaining = limit - len(results)
+        if remaining > 0:
+            domain = args[:]
+            if name:
+                domain.append(('name', operator, name))
+            if matched_ids:
+                domain.append(('id', 'not in', list(matched_ids)))  # needs to be a list here
+            others = super().name_search(name, domain, operator=operator, limit=remaining)
+            results.extend(others)
+
+        return results

products_orderby_invoice/models/product_template.py

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+from odoo import models, fields, api
+from datetime import date
+
+
+class ProductTemplate(models.Model):
+    _inherit = "product.template"
+
+    @api.model
+    def name_search(self, name, args=None, operator="ilike", limit=100):
+        args = list(args) if args else []
+        partner_id = self.env.context.get("partner_id")
+        results = []
+        matched_ids = []
+
+        lines = self.env["account.move.line"].search([
+                ("move_id.move_type", "=", "out_invoice"),
+                ("move_id.partner_id", "=", partner_id),
+                ("move_id.state", "=", "posted"),
+                ("product_id.product_tmpl_id", "!=", False),
+            ])
+
+        lines = sorted(
+            lines, key=lambda l: l.move_id.invoice_date or fields.Date.today(),
+            reverse=True)
+
+        tmpl_map = {}
+        for line in lines:
+            tmpl = line.product_id.product_tmpl_id
+            if tmpl.id not in tmpl_map:
+                tmpl_map[tmpl.id] = {"tmpl": tmpl, "date": line.move_id.invoice_date}
+            if len(tmpl_map) >= limit:
+                break
+
+        name_lower = name.lower() if name else ""
+        today = date.today()
+
+        for info in tmpl_map.values():
+            tmpl = info["tmpl"]
+            invoice_date = info["date"]
+            if not name or (operator == "ilike" and name_lower in tmpl.name.lower()):
+                days = (today - invoice_date).days if invoice_date else "?"
+                display = f"{tmpl.display_name} (Last ordered {days} days ago)"
+                results.append((tmpl.id, display))
+                matched_ids.append(tmpl.id)
+            if len(results) >= limit:
+                break
+
+        remaining = limit - len(results)
+        if remaining > 0:
+            domain = args[:]
+            if name:
+                domain.append(("name", operator, name))
+            if matched_ids:
+                domain.append(("id", "not in", matched_ids))
+            others = super().name_search(name, args=domain, operator=operator, limit=remaining)
+            results.extend(others)
+
+        return results

products_orderby_invoice/views/product_views.xml

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+<?xml version="1.0" encoding="UTF-8"?>
+<odoo>
+    <record id="product_view_kanban_catalog_surplus_qty" model="ir.ui.view">
+            <field name="name">product.view.kanban.catalog.inherit.surplus.qty</field>
+            <field name="model">product.product</field>
+            <field name="inherit_id" ref="product.product_view_kanban_catalog"/>
+            <field name="arch" type="xml">
+                <xpath expr="//div[@name='o_kanban_qty_available']/field[@name='uom_id']" position="after">
+                    <span> (</span>
+                    <field name="surplus_qty"></field>
+                    <span>)</span>
+                </xpath>
+            </field>
+        </record>
+</odoo>