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import ivle.database
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from ivle.database import Exercise, ExerciseAttempt, ExerciseSave, Worksheet, \
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Offering, Subject, Semester, WorksheetExercise
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import ivle.worksheet.utils
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import ivle.webapp.tutorial.test
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from ivle.webapp.base.rest import (JSONRESTView, named_operation,
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require_permission)
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from ivle.webapp.errors import NotFound
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self.worksheet_exercise = req.store.find(WorksheetExercise,
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WorksheetExercise.exercise_id == unicode(exercise),
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WorksheetExercise.exercise_id == exercise,
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WorksheetExercise.worksheet_id == Worksheet.id,
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Worksheet.offering_id == Offering.id,
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Worksheet.identifier == unicode(worksheet),
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Offering.subject_id == Subject.id,
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Subject.short_name == subject,
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Subject.code == subject,
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Offering.semester_id == Semester.id,
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Semester.year == year,
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Semester.semester == semester).one()
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# Query the DB to get an updated score on whether or not this problem
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# has EVER been completed (may be different from "passed", if it has
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# been completed before), and the total number of attempts.
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completed, attempts = ivle.worksheet.utils.get_exercise_status(
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req.store, req.user, self.worksheet_exercise)
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completed, attempts = ivle.worksheet.get_exercise_status(req.store,
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req.user, self.worksheet_exercise)
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test_results["completed"] = completed
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test_results["attempts"] = attempts
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except ValueError:
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# XXX Hack around Google Code issue #87
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# Query from the given date +1 secnod.
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# Date is in seconds (eg. 3:47:12), while the data is in finer time
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# (eg. 3:47:12.3625). The query "date <= 3:47:12" will fail because
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# 3:47:12.3625 is greater. Hence we do the query from +1 second,
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# "date <= 3:47:13", and it finds the correct submission, UNLESS there
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# are multiple submissions inside the same second.
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date += datetime.timedelta(seconds=1)
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worksheet_exercise = req.store.find(WorksheetExercise,
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WorksheetExercise.exercise_id == exercise,
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WorksheetExercise.worksheet_id == Worksheet.id,
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Worksheet.identifier == worksheet,
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Worksheet.offering_id == Offering.id,
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Offering.subject_id == Subject.id,
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Subject.short_name == subject,
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Subject.code == subject,
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Offering.semester_id == Semester.id,
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Semester.year == year,
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Semester.semester == semester).one()
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attempt = ivle.worksheet.utils.get_exercise_attempt(req.store, user,
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attempt = ivle.worksheet.get_exercise_attempt(req.store, user,
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worksheet_exercise, as_of=date,
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allow_inactive=HISTORY_ALLOW_INACTIVE)
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return {'code': self.context.text}
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class WorksheetExerciseRESTView(JSONRESTView):
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'''REST view of a worksheet exercise.'''
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def __init__(self, req, subject, year, semester, worksheet, exercise):
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self.context = req.store.find(WorksheetExercise,
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WorksheetExercise.exercise_id == exercise,
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WorksheetExercise.worksheet_id == Worksheet.id,
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Worksheet.offering_id == Offering.id,
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Offering.subject_id == Subject.id,
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Subject.short_name == subject,
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Offering.semester_id == Semester.id,
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Semester.year == year,
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Semester.semester == semester).one()
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if self.context is None:
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@named_operation('view')
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class ExerciseRESTView(JSONRESTView):
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'''REST view of an exercise.'''
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def get_permissions(self, user):
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# XXX: Do it properly.
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# XXX: Does any user have the ability to save as themselves?
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# XXX: Does a user EVER have permission to save as another user?
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@named_operation('save')
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def save(self, req, text):
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# Find the appropriate WorksheetExercise to save to. If its not found,
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# the user is submitting against a non-existant worksheet/exercise
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worksheet_exercise = req.store.find(WorksheetExercise,
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WorksheetExercise.exercise_id == self.exercise,
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WorksheetExercise.worksheet_id == Worksheet.id,
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Worksheet.offering_id == Offering.id,
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Offering.subject_id == Subject.id,
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Subject.code == self.subject,
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Offering.semester_id == Semester.id,
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Semester.year == self.year,
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Semester.semester == self.semester).one()
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if worksheet_exercise is None:
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old_save = req.store.find(ExerciseSave,
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ExerciseSave.ws_ex_id == self.context.id,
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ExerciseSave.ws_ex_id == worksheet_exercise.id,
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ExerciseSave.user == req.user).one()
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#Overwrite the old, or create a new if there isn't one
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return {"result": "ok"}
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def generate_exerciselist(worksheet, req, worksheetdata):
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"""Runs through the worksheetstream, generating the appropriate
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WorksheetExercises, and de-activating the old ones."""
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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(worksheetdata)
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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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if data[0] == 'exercise':
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if attr[0] == 'optional':
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optional = attr[1] == 'true'
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exercises.append((src, optional))
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# Set all current worksheet_exercises to be inactive
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db_worksheet_exercises = req.store.find(WorksheetExercise,
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WorksheetExercise.worksheet_id == worksheet.id)
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for worksheet_exercise in db_worksheet_exercises:
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worksheet_exercise.active = False
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for exerciseid, optional in exercises:
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worksheet_exercise = req.store.find(WorksheetExercise,
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WorksheetExercise.worksheet_id == worksheet.id,
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Exercise.id == WorksheetExercise.exercise_id,
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Exercise.id == exerciseid).one()
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if worksheet_exercise is None:
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exercise = req.store.find(Exercise,
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Exercise.id == exerciseid
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worksheet_exercise = WorksheetExercise()
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worksheet_exercise.worksheet_id = worksheet.id
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worksheet_exercise.exercise_id = exercise.id
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req.store.add(worksheet_exercise)
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worksheet_exercise.active = True
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worksheet_exercise.seq_no = ex_num
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worksheet_exercise.optional = optional
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# Note that this is the view of an existing worksheet. Creation is handled
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# by OfferingRESTView (as offerings have worksheets)
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class WorksheetRESTView(JSONRESTView):
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"""View used to update a worksheet."""
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def get_permissions(self, user):
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# XXX: Do it properly.
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# XXX: Lecturers should be allowed to add worksheets Only to subjects
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# under their control
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if user.rolenm == 'admin':
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def __init__(self, req, **kwargs):
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self.worksheet = kwargs['worksheet']
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Worksheet.identifier == self.worksheet,
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Worksheet.offering_id == Offering.id,
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Offering.subject_id == Subject.id,
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Subject.short_name == self.subject,
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Subject.code == self.subject,
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Offering.semester_id == Semester.id,
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Semester.year == self.year,
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Semester.semester == self.semester).one()
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if self.context is None:
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@named_operation('edit')
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@named_operation('save')
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def save(self, req, name, assessable, data, format):
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"""Takes worksheet data and saves it."""
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generate_exerciselist(self.context, req, data)
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self.context.name = unicode(name)
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self.context.assessable = self.convert_bool(assessable)
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self.context.data = unicode(data)
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self.context.format = unicode(format)
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ivle.worksheet.utils.update_exerciselist(self.context)
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return {"result": "ok"}
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class WorksheetsRESTView(JSONRESTView):
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"""View used to update and create Worksheets."""
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def get_permissions(self, user):
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# XXX: Do it properly.
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# XXX: Lecturers should be allowed to add worksheets Only to subjects
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# under their control
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if user.rolenm == 'admin':
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def __init__(self, req, **kwargs):
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self.subject = kwargs['subject']
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self.context = req.store.find(Offering,
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Offering.subject_id == Subject.id,
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Subject.short_name == self.subject,
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Subject.code == self.subject,
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Offering.semester_id == Semester.id,
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Semester.year == self.year,
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Semester.semester == self.semester).one()
added
removed
ivle/webapp/tutorial/service.py
