Bug in Bank Account Numbers generation

git-svn-id: https://svn.erp5.org/repos/public/erp5/trunk@3308 20353a03-c40f-0410-a6d1-a30d3c3de9de

product/ERP5/Document/BankAccount.py

@@ -38,9 +38,12 @@ import string
 
 class BankAccount(Folder, Coordinate):
     """
-    A bank account number holds a collection of numbers and codes (ex. SWIFT, RIB, etc.) which may be used to identify a bank account.
+      A bank account number holds a collection of numbers and codes
+        (ex. SWIFT, RIB, etc.) which may be used to identify a bank account.
 
-    A Bank Account is owned by a Person or an Organisation. A Bank Account contain Agents with Agent Privileges used by the owner to delegate the management of the bank account to trusted third-party Persons.
+      A Bank Account is owned by a Person or an Organisation. A Bank Account
+        contain Agents with Agent Privileges used by the owner to delegate the
+        management of the bank account to trusted third-party Persons.
 
       BankAccount inherits from Base and from the mix-in Coordinate.
     """
@@ -130,7 +133,7 @@ class BankAccount(Folder, Coordinate):
         key    = self.getBbanKey()
         if bank   == None: bank   = ''
         if branch == None: branch = ''
-        if ban    == None: account_id = ''
+        if ban    == None: ban    = ''
         if key    == None: key    = ''
         return (bank + branch + ban + key).upper()
 
@@ -146,7 +149,7 @@ class BankAccount(Folder, Coordinate):
         key    = self.getBbanKey()
         if bank   == None: bank   = ''
         if branch == None: branch = ''
-        if ban    == None: account_id = ''
+        if ban    == None: ban    = ''
         if key    == None: key    = ''
         return sep.join([bank, branch, ban, key]).upper()
 
@@ -170,6 +173,8 @@ class BankAccount(Folder, Coordinate):
         if bank   == None: bank   = ''
         if branch == None: branch = ''
         if ban    == None: ban    = ''
+        if len(bank + branch + ban) == 0:
+          return ''
 
         bank   += ('0' * (5 - len(bank)))
         branch += ('0' * (5 - len(branch)))