委外加工的入库单增加采购申请按钮

jikimo_purchase_request/models/__init__.py

@@ -5,3 +5,4 @@ from . import sale_order
 from . import mrp_production
 from . import purchase_order
 from . import stock_rule
+from . import stock_picking

jikimo_purchase_request/models/stock_picking.py

@@ -0,0 +1,35 @@
+from odoo import fields, api, models, _
+
+
+class StockPicking(models.Model):
+    _inherit = "stock.picking"
+
+    purchase_request_count = fields.Integer('采购订单数量', compute='_compute_purchase_request')
+
+    @api.depends('name')
+    def _compute_purchase_request(self):
+        for record in self:
+            purchase_request_ids = self.env['purchase.request'].search([('origin', '=', record.name)])
+            record.purchase_request_count = len(purchase_request_ids)
+
+    def action_view_purchase_request(self):
+        self.ensure_one()
+
+        purchase_request_ids = self.env['purchase.request'].search([('origin', '=', self.name)])
+
+        action = {
+            'res_model': 'purchase.request',
+            'type': 'ir.actions.act_window',
+        }
+        if len(purchase_request_ids) == 1:
+            action.update({
+                'view_mode': 'form',
+                'res_id': purchase_request_ids[0].id,
+            })
+        else:
+            action.update({
+                'name': _("从 %s生成采购请求单", self.name),
+                'domain': [('id', 'in', purchase_request_ids.ids)],
+                'view_mode': 'tree,form',
+            })
+        return action