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Viewing changes to ivle/database.py

  • Committer: William Grant
  • Date: 2010-02-25 03:18:21 UTC
  • Revision ID: grantw@unimelb.edu.au-20100225031821-mi9a2tm5679fht4d
Shuffle things around so that req.user and req.store only construct when actually retrieved, and ensure they're not retrieved for media files. Saves 50ms of DB connection time per request.

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ivle/database.py
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    semester = Reference(semester_id, Semester.id)
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    description = Unicode()
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    url = Unicode()
 
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    show_worksheet_marks = Bool()
 
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    worksheet_cutoff = DateTime()
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    groups_student_permissions = Unicode()
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    enrolments = ReferenceSet(id, 'Enrolment.offering_id')
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                perms.add('view_project_submissions')
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                perms.add('admin_groups')
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                perms.add('edit_worksheets')
 
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                perms.add('view_worksheet_marks')
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                perms.add('edit')           # Can edit projects & details
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                perms.add('enrol')          # Can see enrolment screen at all
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                perms.add('enrol_student')  # Can enrol students
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            newws.identifier = worksheet.identifier
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            newws.name = worksheet.name
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            newws.assessable = worksheet.assessable
 
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            newws.published = worksheet.published
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            newws.data = worksheet.data
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            newws.format = worksheet.format
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            newws.offering = self
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    identifier = Unicode()
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    name = Unicode()
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    assessable = Bool()
 
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    published = Bool()
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    data = Unicode()
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    seq_no = Int()
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    format = Unicode()
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            WorksheetExercise.worksheet == self).remove()
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    def get_permissions(self, user, config):
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        # Almost the same permissions as for the offering itself
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        perms = self.offering.get_permissions(user, config)
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        # However, "edit" permission is derived from the "edit_worksheets"
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        # permission of the offering
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        if 'edit_worksheets' in perms:
 
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        offering_perms = self.offering.get_permissions(user, config)
 
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        perms = set()
 
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        # Anybody who can view an offering can view a published
 
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        # worksheet.
 
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        if 'view' in offering_perms and self.published:
 
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            perms.add('view')
 
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        # Any worksheet editors can both view and edit.
 
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        if 'edit_worksheets' in offering_perms:
 
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            perms.add('view')
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            perms.add('edit')
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        else:
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            perms.discard('edit')
 
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        return perms
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    def get_xml(self):
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    def __repr__(self):
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        return "<%s %s by %s at %s>" % (type(self).__name__,
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            self.exercise.name, self.user.login, self.date.strftime("%c"))
 
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            self.worksheet_exercise.exercise.name, self.user.login,
 
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            self.date.strftime("%c"))
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class ExerciseAttempt(ExerciseSave):
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    """An attempt at solving an exercise.