[IMP]: implement new method that computes the level of account

ref: developer by vra

bzr revid: mga@tinyerp.com-20100520143343-cjk2u4fmjni6xjq9

addons/account/account.py

@@ -297,6 +297,17 @@ class account_account(osv.osv):
 
         return result
 
+    def _get_level(self, cr, uid, ids, field_name, arg, context={}):
+        res={}
+        accounts = self.browse(cr, uid, ids)
+        for account in accounts:
+            level = 0
+            if account.parent_id :
+                obj = self.browse(cr, uid, account.parent_id.id)
+                level = obj.level + 1
+            res[account.id] = level
+        return res
+    
     _columns = {
         'name': fields.char('Name', size=128, required=True, select=True),
         'currency_id': fields.many2one('res.currency', 'Secondary Currency', help="Forces all moves for this account to have this secondary currency."),
@@ -343,6 +354,7 @@ class account_account(osv.osv):
         'check_history': fields.boolean('Display History',
             help="Check this box if you want to print all entries when printing the General Ledger, "\
             "otherwise it will only print its balance."),
+        'level': fields.function(_get_level, string='Level', method=True, store=True, type='integer'),
     }
 
     def _default_company(self, cr, uid, context={}):