[CLEAN] fields.py: added auto_join in one2many and many2one __init__, binded on _auto_join. Added some short explanations in fields.py about the attribute.

bzr revid: tde@openerp.com-20121205153410-07vo3j1c641xgmda

openerp/osv/fields.py

@@ -27,6 +27,9 @@
     Fields Attributes:
         * _classic_read: is a classic sql fields
         * _type   : field type
+        * _auto_join: for one2many and many2one fields, tells whether select
+            queries will join the relational table instead of replacing the
+            field condition by an equivalent-one based on a search.
         * readonly
         * required
         * size
@@ -428,9 +431,10 @@ class many2one(_column):
     _symbol_f = lambda x: x or None
     _symbol_set = (_symbol_c, _symbol_f)
 
-    def __init__(self, obj, string='unknown', **args):
+    def __init__(self, obj, string='unknown', auto_join=False, **args):
         _column.__init__(self, string=string, **args)
         self._obj = obj
+        self._auto_join = auto_join
 
     def get(self, cr, obj, ids, name, user=None, context=None, values=None):
         if context is None:
@@ -497,11 +501,12 @@ class one2many(_column):
     _prefetch = False
     _type = 'one2many'
 
-    def __init__(self, obj, fields_id, string='unknown', limit=None, **args):
+    def __init__(self, obj, fields_id, string='unknown', limit=None, auto_join=False, **args):
         _column.__init__(self, string=string, **args)
         self._obj = obj
         self._fields_id = fields_id
         self._limit = limit
+        self._auto_join = auto_join
         #one2many can't be used as condition for defaults
         assert(self.change_default != True)