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import ivle.database
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from ivle.database import ExerciseAttempt, ExerciseSave, Worksheet, \
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WorksheetExercise, Exercise, User
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WorksheetExercise, Exercise
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import ivle.webapp.tutorial.test
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__all__ = ['ExerciseNotFound', 'get_exercise_status',
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'get_exercise_statistics',
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'get_exercise_stored_text', 'get_exercise_attempts',
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'get_exercise_attempt', 'test_exercise_submission',
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return first_success is not None, num_attempts
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def get_exercise_statistics(store, worksheet_exercise):
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"""Return statistics about an exercise (with respect to a given
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(number of students completed, number of students attempted)."""
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# Count the set of Users whose ID matches an attempt in this worksheet
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num_completed = store.find(User, User.id == ExerciseAttempt.user_id,
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ExerciseAttempt.ws_ex_id == worksheet_exercise.id,
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ExerciseAttempt.complete == True).config(distinct=True).count()
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num_attempted = store.find(User, User.id == ExerciseAttempt.user_id,
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ExerciseAttempt.ws_ex_id == worksheet_exercise.id,
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).config(distinct=True).count()
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return num_completed, num_attempted
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def get_exercise_stored_text(store, user, worksheet_exercise):
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"""Given a storm.store, User and WorksheetExercise, returns an
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ivle.database.ExerciseSave object for the last saved/submitted attempt for
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# Turns the worksheet into an xml stream, and then finds all the
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# exercise nodes in the stream.
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worksheetdata = genshi.XML(worksheet.data_xhtml)
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worksheetdata = genshi.XML(worksheet.get_xml())
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for kind, data, pos in worksheetdata:
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if kind is genshi.core.START:
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# Data is a tuple of tag name and a list of name->value tuples
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return test_results
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class FakeWorksheetForMarks:
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"""This class represents a worksheet and a particular students progress
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Do not confuse this with a worksheet in the database. This worksheet
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has extra information for use in the output, such as marks."""
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def __init__(self, id, name, assessable, published):
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self.assessable = assessable
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self.published = published
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self.complete_class = ''
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self.optional_message = ''
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return ("Worksheet(id=%s, name=%s, assessable=%s)"
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% (repr(self.id), repr(self.name), repr(self.assessable)))
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# XXX: This really shouldn't be needed.
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def create_list_of_fake_worksheets_and_stats(config, store, user, offering):
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"""Take an offering's real worksheets, converting them into stats.
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The worksheet listing views expect special fake worksheet objects
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that contain counts of exercises, whether they've been completed,
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that sort of thing. A fake worksheet object is used to contain
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these values, because nobody has managed to refactor the need out
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# Offering.worksheets is ordered by the worksheets seq_no
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worksheets = offering.worksheets
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# Unless we can edit worksheets, hide unpublished ones.
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if 'edit_worksheets' not in offering.get_permissions(user, config):
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worksheets = worksheets.find(published=True)
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for worksheet in worksheets:
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new_worksheet = FakeWorksheetForMarks(
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worksheet.identifier, worksheet.name, worksheet.assessable,
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if new_worksheet.assessable:
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# Calculate the user's score for this worksheet
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mand_done, mand_total, opt_done, opt_total = (
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ivle.worksheet.utils.calculate_score(store, user, worksheet))
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optional_message = " (excluding optional exercises)"
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optional_message = ""
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if mand_done >= mand_total:
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new_worksheet.complete_class = "complete"
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new_worksheet.complete_class = "semicomplete"
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new_worksheet.complete_class = "incomplete"
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problems_done += mand_done
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problems_total += mand_total
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new_worksheet.mand_done = mand_done
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new_worksheet.total = mand_total
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new_worksheet.optional_message = optional_message
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new_worksheets.append(new_worksheet)
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return new_worksheets, problems_total, problems_done
added
removed
ivle/worksheet/utils.py
