[FIX] Fix no UoM restriction on Min/Max rules

lp bug: https://launchpad.net/bugs/10003350 fixed

bzr revid: qt@tempo-consulting.fr-20120523110439-zwq3zbq41kty7w8g

addons/procurement/procurement.py

@@ -503,6 +503,19 @@ class stock_warehouse_orderpoint(osv.osv):
             result[orderpoint.id] = procurement_ids
         return result
 
+    def _check_product_uom(self, cr, uid, ids, context=None):
+        '''
+        Check if the UoM has the same category as the product standard UoM
+        '''
+        if not context:
+            context = {}
+            
+        for rule in self.browse(cr, uid, ids, context=context):
+            if rule.product_id.uom_id.category_id.id != rule.product_uom.category_id.id:
+                return False
+            
+        return True
+
     _columns = {
         'name': fields.char('Name', size=32, required=True),
         'active': fields.boolean('Active', help="If the active field is set to False, it will allow you to hide the orderpoint without removing it."),
@@ -535,6 +548,9 @@ class stock_warehouse_orderpoint(osv.osv):
     _sql_constraints = [
         ('qty_multiple_check', 'CHECK( qty_multiple > 0 )', 'Qty Multiple must be greater than zero.'),
     ]
+    _constraints = [
+        (_check_product_uom, 'You have to select a product UOM in the same category than the purchase UOM of the product', ['product_id', 'product_uom']),
+    ]
 
     def default_get(self, cr, uid, fields, context=None):
         res = super(stock_warehouse_orderpoint, self).default_get(cr, uid, fields, context)
@@ -565,8 +581,25 @@ class stock_warehouse_orderpoint(osv.osv):
         """
         if product_id:
             prod = self.pool.get('product.product').browse(cr, uid, product_id, context=context)
+            d = {'product_uom': [('category_id', '=', prod.uom_id.category_id.id)]}
             v = {'product_uom': prod.uom_id.id}
-            return {'value': v}
+            return {'value': v, 'domain': d}
+        return {'domain': {'product_uom': []}}
+
+    def onchange_uom(self, cr, uid, ids, product_id, uom_id, context=None):
+        '''
+        Check if the UoM is compatible with product standard UoM
+        '''
+        if uom_id and product_id:
+            product_obj = self.pool.get('product.product')
+            uom_obj = self.pool.get('product.uom')
+        
+            product = product_obj.browse(cr, uid, product_id, context=context)
+            uom = uom_obj.browse(cr, uid, uom_id, context=context)
+        
+            if product.uom_id.category_id.id != uom.category_id.id:
+                raise osv.except_osv(_('Wrong Product UOM !'), _('You have to select a product UOM in the same category than the purchase UOM of the product'))
+        
         return {}
     
     def copy(self, cr, uid, id, default=None, context=None):

addons/procurement/procurement_view.xml

@@ -206,7 +206,7 @@
                         <separator string="General Information" colspan="2" />
                         <field name="name" />
                         <field name="product_id" on_change="onchange_product_id(product_id)"/>
-                        <field name="product_uom"/>
+                        <field name="product_uom" on_change="onchange_uom(product_id, product_uom)" />
                     </group>
                     <group col="2" colspan="2">
                         <separator string="Locations" colspan="2" />