taskapp/utilities/task.py
author nishanth
Sun, 28 Feb 2010 03:31:40 +0530
changeset 137 e56b95298254
parent 120 aad4e6065d85
child 155 52958289d81f
permissions -rw-r--r--
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from django.http import Http404
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from pytask.taskapp.models import Task, Map
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def getTask(tid):
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    """ retreive the task from database.
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    if the task has deps or subs, update its status correspondingly.
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    """
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    try:
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        task = Task.objects.get(id=tid)
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    except Task.DoesNotExist:
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        raise Http404
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    try:
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        mapobj = Map.objects.get(main=task)
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    except Map.DoesNotExist:
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        mapobj = Map()
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        mapobj.main = task
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        mapobj.save()
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    task_subs = mapobj.subs.all()
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    if task.sub_type == "D":
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        task.deps, task.subs = task_subs, []
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    elif task.sub_type == "S":
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        task.subs, task.deps = task_subs, []
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    deps, subs = task.deps, task.subs
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    if deps and task.status in ["OP", "LO"]:
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        task.status = "OP" if all(map(lambda t:t.status=="CM",deps)) else "LO"
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    if subs and task.status in ["OP", "LO", "CM"]:
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        task.status = "CM" if all(map(lambda t:t.status=="CM",subs)) else "LO"
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    task.save()
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    return task
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