Add empty_account on trial balance for issue616

account.py

@@ -1164,6 +1164,8 @@ class PrintTrialBalanceInit(WizardOSV):
                     "('start_date', '>=', (start_period, 'start_date'))]")
     company = fields.Many2One('company.company', 'Company', required=True)
     posted = fields.Boolean('Posted Move', help='Only posted move')
+    empty_account = fields.Boolean('Empty Account',
+            help='With account without move')
 
     def default_fiscalyear(self, cursor, user, context=None):
         fiscalyear_obj = self.pool.get('account.fiscalyear')
@@ -1188,6 +1190,9 @@ class PrintTrialBalanceInit(WizardOSV):
     def default_posted(self, cursor, user, context=None):
         return False
 
+    def default_empty_account(self, cursor, user, context=None):
+        return False
+
     def on_change_fiscalyear(self, cursor, user, ids, vals, context=None):
         return {
             'start_period': False,
@@ -1275,6 +1280,15 @@ class TrialBalance(Report):
         accounts = account_obj.browse(cursor, user, account_ids,
                 context=ctx)
 
+        if not datas['form']['empty_account']:
+            to_remove = []
+            for account in accounts:
+                if account.debit == Decimal('0.0') \
+                        and account.credit == Decimal('0.0'):
+                    to_remove.append(account)
+            for account in to_remove:
+                accounts.remove(account)
+
         periods = period_obj.browse(cursor, user, end_period_ids,
                 context=context)
 

account.xml

@@ -681,7 +681,8 @@ this repository contains the full copyright notices and license terms. -->
                 <form string="Print Trial Balance">
                     <label name="fiscalyear"/>
                     <field name="fiscalyear"/>
-                    <newline/>
+                    <label name="empty_account"/>
+                    <field name="empty_account"/>
                     <label name="start_period"/>
                     <field name="start_period"/>
                     <label name="end_period"/>