openerp 7.0 read_group dont compute aggreated fields on inherits table

If you look in human Resources-> timesheet activities, by default we have a total on Duration columns, this fields come from account analytic line. Sum work fine, but if you try to group by user, you dont have total.

Problem come from osv/orm.py/BaseModel.read_group

2 change needed to fix that

1)
aggregated_fields = [
            f for f in fields
            if f not in ('id', 'sequence')
            if fget[f]['type'] in ('integer', 'float')
            if (f in self._columns and getattr(self._columns[f], '_classic_write') or
                f in self._all_columns and getattr(self._all_columns[f].column, '_classic_write') #LOOK IF THE FIELDS COME FROM INHERITS
                )]

This change will tell to openerp to take the fields in aggregated_fields table if he come from a inherits

2)
for f in aggregated_fields:
            group_operator = fget[f].get('group_operator', 'sum')
            if flist:
                flist += ', '
                if f in self._columns: #IF COLUMNS COME FROM TABLE, DO NORMALY
                    qualified_field = '"%s"."%s"' % (self._table, f)
                else:
                    #IF COLUMN COME FROM A INHERITS WE NEED TO ADD __RELATION_FIELD in the table source name
                    qualified_field = '"%s__%s"."%s"' % (self._table,self._all_columns[f].parent_column, f)
            flist += "%s(%s) AS %s" % (group_operator, qualified_field, f)

This Change will tell to openerp which columns he need to include in the Select query.

With this change on our side, all work fine now !