[MERGE] Merged Christophe's branch for the fix of check on duplication of documents

bzr revid: jvo@tinyerp.com-20110706124407-3x8hel6lfacmrtyo

addons/document/document.py

@@ -150,32 +150,25 @@ class document_file(osv.osv):
         'parent_id': __get_def_directory
     }
     _sql_constraints = [
-        # filename_uniq is not possible in pure SQL
+        # filename_uniq is not possible in pure SQL     # ??
     ]
-    def _check_duplication(self, cr, uid, vals, ids=[], op='create'):
-        name = vals.get('name', False)
-        parent_id = vals.get('parent_id', False)
-        res_model = vals.get('res_model', False)
-        res_id = vals.get('res_id', 0)
-        if op == 'write':
-            for file in self.browse(cr, uid, ids): # FIXME fields_only
-                if not name:
-                    name = file.name
-                if not parent_id:
-                    parent_id = file.parent_id and file.parent_id.id or False
-                if not res_model:
-                    res_model = file.res_model and file.res_model or False
-                if not res_id:
-                    res_id = file.res_id and file.res_id or 0
-                res = self.search(cr, uid, [('id', '<>', file.id), ('name', '=', name), ('parent_id', '=', parent_id), ('res_model', '=', res_model), ('res_id', '=', res_id)])
-                if len(res):
-                    return False
-        if op == 'create':
-            res = self.search(cr, uid, [('name', '=', name), ('parent_id', '=', parent_id), ('res_id', '=', res_id), ('res_model', '=', res_model)])
-            if len(res):
+    def _check_duplication(self, cr, uid, ids, context=None):
+        # FIXME can be a SQL constraint: unique(name,parent_id,res_model,res_id)
+        for attach in self.browse(cr, uid, ids, context):
+            domain = [('id', '!=', attach.id),
+                      ('name', '=', attach.name),
+                      ('parent_id', '=', attach.parent_id.id),
+                      ('res_model', '=', attach.res_model),
+                      ('res_id', '=', attach.res_id),
+                     ]
+            if self.search(cr, uid, domain, context=context):
                 return False
         return True
 
+    _constraints = [
+        (_check_duplication, 'File name must be unique!', ['name', 'parent_id', 'res_model', 'res_id'])
+    ]
+
     def check(self, cr, uid, ids, mode, context=None, values=None):
         """Check access wrt. res_model, relax the rule of ir.attachment parent
 
@@ -222,8 +215,6 @@ class document_file(osv.osv):
         res = self.search(cr, uid, [('id', 'in', ids)])
         if not len(res):
             return False
-        if not self._check_duplication(cr, uid, vals, ids, 'write'):
-            raise osv.except_osv(_('ValidateError'), _('File name must be unique!'))
 
         # if nodes call this write(), they must skip the code below
         from_node = context and context.get('__from_node', False)
@@ -260,7 +251,6 @@ class document_file(osv.osv):
             del vals['file_size']
         if len(ids) and len(vals):
             result = super(document_file,self).write(cr, uid, ids, vals, context=context)
-        cr.commit() # ?
         return result
 
     def create(self, cr, uid, vals, context=None):
@@ -290,10 +280,7 @@ class document_file(osv.osv):
         else:
             if vals.get('file_size'):
                 del vals['file_size']
-        if not self._check_duplication(cr, uid, vals):
-            raise osv.except_osv(_('ValidateError'), _('File name must be unique!'))
         result = super(document_file, self).create(cr, uid, vals, context)
-        cr.commit() # ?
         return result
 
     def __get_partner_id(self, cr, uid, res_model, res_id, context=None):