[FIX] hr_timesheet_sheet: delete related analytic lines when deleting…

… timesheet.sheet

When deleting a timesheet sheet, delete also the analytic lines related
to the timesheet lines.

addons/hr_timesheet_sheet/hr_timesheet_sheet.py

@@ -256,6 +256,14 @@ def unlink(self, cr, uid, ids, context=None):
                 raise osv.except_osv(_('Invalid Action!'), _('You cannot delete a timesheet which is already confirmed.'))
             elif sheet['total_attendance'] <> 0.00:
                 raise osv.except_osv(_('Invalid Action!'), _('You cannot delete a timesheet which have attendance entries.'))
+
+        toremove = []
+        analytic_line = self.pool.get('account.analytic.line')
+        for sheet in self.browse(cr, uid, ids, context=context):
+            for timesheet in sheet.timesheet_ids:
+                toremove.append(timesheet.line_id.id)
+        analytic_line.unlink(cr, uid, toremove, context=context)
+
         return super(hr_timesheet_sheet, self).unlink(cr, uid, ids, context=context)
 
     def onchange_employee_id(self, cr, uid, ids, employee_id, context=None):