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  • Committer: Matt Giuca
  • Date: 2009-01-19 11:09:50 UTC
  • mto: This revision was merged to the branch mainline in revision 1090.
  • Revision ID: matt.giuca@gmail.com-20090119110950-a40040jv6clxrvej
tutorial: Replaced call to ivle.db.create_worksheet with local code (roughly
    the same algorithm) which uses Worksheet and Exercise.
    This expands the code a lot, but it's all relevant to the tutorial system,
    so it belongs here, and still shorter than db.create_worksheet.
ivle.database: Added new supporting methods for Worksheet and Exercise.
ivle.db: Removed create_worksheet.

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ivle/database.py
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    def __repr__(self):
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        return "<%s %s>" % (type(self).__name__, self.name)
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    @classmethod
 
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    def get_by_name(cls, store, name):
 
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        """
 
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        Get the Exercise from the db associated with a given store and name.
 
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        """
 
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        return store.find(cls, cls.name == unicode(name)).one()
 
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class Worksheet(Storm):
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    __storm_table__ = "worksheet"
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        return store.find(cls, cls.subject == unicode(subjectname),
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            cls.name == unicode(worksheetname)).one()
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    def remove_all_exercises(self, store):
 
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        """
 
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        Remove all exercises from this worksheet.
 
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        This does not delete the exercises themselves. It just removes them
 
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        from the worksheet.
 
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        """
 
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        store.find(WorksheetExercise,
 
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            WorksheetExercise.worksheet == self).remove()
 
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class WorksheetExercise(Storm):
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    __storm_table__ = "worksheet_problem"
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    __storm_primary__ = "worksheet_id", "exercise_id"