# HG changeset patch
# User Björn Ricks <bjoern.ricks@intevation.de>
# Date 1306325545 -7200
# Node ID 07394c6155e2b81a2a32b8c34090d35145176307
# Parent  fa53e2ec484dc13cef7ef6081afeb5a3afba2017
Don't crash if subtracted time is greater then the current time

Fixes #1569

diff -r fa53e2ec484d -r 07394c6155e2 getan/states.py
--- a/getan/states.py	Wed May 25 13:42:41 2011 +0200
+++ b/getan/states.py	Wed May 25 14:12:25 2011 +0200
@@ -283,9 +283,13 @@
 class SubtractTimeState(BaseTimeState):
     def enter(self):
         minutes         = safe_int(self.view.frame.get_footer().get_edit_text())
+        sec = minutes * 60
+        if sec > self.state.sec:
+            self.view._total_time()
+            return self.state
         project         = self.view.item_in_focus()
         project.start  += timedelta(minutes=minutes)
-        self.state.sec -= minutes * 60
+        self.state.sec -= sec
         logger.info("SubtractTimeState: subtract %d minutes from project '%s'"
                     % (minutes, project.desc))
         self.view._total_time()