search supplier code

bemade_search_supplier_code/__manifest__.py

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+{
+    'name': 'Search Supplier Code',
+    'version': '1.0',
+    'summary': 'Search for products by supplier code',
+    'sequence': 10,
+    'description': """
+        This module adds the ability to search for products by supplier code.
+        """,
+    'category': 'Inventory/Purchase',
+    'author': 'Bemade',
+    'website': 'https://www.bemade.org',
+    'depends': [
+        'purchase',
+        'product'
+    ],
+    'data': [
+        'views/product_product_views.xml',
+    ],
+    'demo': [],
+    'installable': True,
+    'application': False,
+    'auto_install': False,
+    'license': 'LGPL-3',
+}

bemade_search_supplier_code/models/product_product.py

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+class ProductProduct(models.Model):
+    _inherit = 'product.product'
+
+    supplier_codes = fields.Char(compute='_compute_supplier_codes', string='Supplier Codes', store=False, search='_search_supplier_codes')
+
+    @api.depends('variant_seller_ids', 'variant_seller_ids.product_code')
+    def _compute_supplier_codes(self):
+        for product in self:
+            codes = filter(lambda x: isinstance(x, str), product.variant_seller_ids.mapped('product_code'))
+            product.supplier_codes = ', '.join(codes)
+
+    def _search_supplier_codes(self, operator, value):
+        if not value:
+            return []
+
+        supplierinfo_ids = self.env['product.supplierinfo'].search([('product_code', operator, value)])
+        product_ids = supplierinfo_ids.mapped('product_id.id')
+
+        return [('id', 'in', product_ids)]

bemade_search_supplier_code/views/product_product_views.xml

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+<odoo>
+    <record id="view_product_product_search" model="ir.ui.view">
+        <field name="name">product.product.search.inherit</field>
+        <field name="model">product.product</field>
+        <field name="inherit_id" ref="product.product_search_form_view"/>
+        <field name="arch" type="xml">
+            <field name="name" position="after">
+                <field name="supplier_codes"/>
+            </field>
+        </field>
+    </record>
+</odoo>