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Viewing changes to ivle/webapp/admin/subject.py

  • Committer: William Grant
  • Date: 2010-02-12 03:52:59 UTC
  • Revision ID: grantw@unimelb.edu.au-20100212035259-ecqjo7tl53xenva3
Semester creation UI.

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Lines of Context:
ivle/webapp/admin/subject.py
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        return self.context
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class SemesterUniquenessValidator(formencode.FancyValidator):
 
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    """A FormEncode validator that checks that a semester is unique.
 
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    There cannot be more than one semester for the same year and semester.
 
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    """
 
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    def _to_python(self, value, state):
 
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        if (state.store.find(
 
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                Semester, year=value['year'], semester=value['semester']
 
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                ).count() > 0):
 
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            raise formencode.Invalid(
 
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                'Semester already exists', value, state)
 
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        return value
 
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class SemesterSchema(formencode.Schema):
 
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    year = formencode.validators.UnicodeString()
 
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    semester = formencode.validators.UnicodeString()
 
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    chained_validators = [SemesterUniquenessValidator()]
 
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class SemesterNew(BaseFormView):
 
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    """A form to create a semester."""
 
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    template = 'templates/semester-new.html'
 
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    tab = 'subjects'
 
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    def authorize(self, req):
 
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        return req.user is not None and req.user.admin
 
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    @property
 
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    def validator(self):
 
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        return SemesterSchema()
 
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    def get_default_data(self, req):
 
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        return {}
 
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    def save_object(self, req, data):
 
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        new_semester = Semester()
 
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        new_semester.year = data['year']
 
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        new_semester.semester = data['semester']
 
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        req.store.add(new_semester)
 
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        return new_semester
 
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    def get_return_url(self, obj):
 
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        return '/subjects'
 
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class OfferingView(XHTMLView):
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    """The home page of an offering."""
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    template = 'templates/offering.html'
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    views = [(ApplicationRoot, ('subjects', '+index'), SubjectsView),
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             (ApplicationRoot, ('subjects', '+new'), SubjectNew),
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             (ApplicationRoot, ('subjects', '+new-offering'), OfferingNew),
 
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             (ApplicationRoot, ('subjects', '+new-semester'), SemesterNew),
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             (Subject, '+edit', SubjectEdit),
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             (Offering, '+index', OfferingView),
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             (Offering, '+edit', OfferingEdit),