gacks/gackscalendar.py

   1 class GacksCalendar:
   2     def __init__(self):
   3         pass
   4
   5     def query(self, id, unitStart, unitStop, timeStart, timeStop):
   6         pass
   7
   8     def insert_record(self, item):
   9         pass
  10
  11 class GacksListCalendar(GacksCalendar):
  12     def __init__(self):
  13         self.items = []
  14
  15     def test_id(x, y):
  16         if not x:
  17             return True
  18         else:
  19             return (x == y)
  20
  21     def test_lesser(x, y):
  22         if not x:
  23             return True
  24         else if y==INFINITY:
  25             return True
  26         else:
  27             return (x<y)
  28
  29     def test_greater_equal(x, y):
  30         if not x:
  31             return True
  32         else if x==INFINITY:
  33             return True
  34         else if y==INFINITY:
  35             return False
  36         else:
  37             return (x>=y)
  38
  39     def query(self, id, unitStart=0, unitStop=INFINITY, timeStart=0, timeStop=INFINITY):
  40         list = []
  41         for item in self.items:
  42             if test_id(id, item.id) and
  43                test_lesser(unitStart, item.unitStop) and
  44                test_greater_equal(unitStop, item.unitStart) and
  45                test_lesser(timeStart, item.timeStop) and
  46                test_greater_equal(timeStop, item.timeStart):
  47                  list = list + item
  48         return list
  49
  50     def insert_record(self, item):
  51         conflicts = self.query(item.id, item.unitStart, item.unitStop, item.timeStart, item.timeStop)
  52         for conflict in conflicts:
  53             self.items.remove(conflict)
  54
  55         self.items.append(item)
  56