43
39
TIMESTAMP_FORMAT = '%Y-%m-%d %H:%M:%S'
45
42
class AttemptsRESTView(JSONRESTView):
46
43
'''REST view of a user's attempts at an exercise.'''
48
def __init__(self, req, subject, year, semester, worksheet,
44
def __init__(self, req, subject, worksheet, exercise, username):
45
# TODO: Find exercise within worksheet.
50
46
self.user = ivle.database.User.get_by_login(req.store, username)
51
47
if self.user is None:
54
self.worksheet_exercise = req.store.find(WorksheetExercise,
55
WorksheetExercise.exercise_id == exercise,
56
WorksheetExercise.worksheet_id == Worksheet.id,
57
Worksheet.offering_id == Offering.id,
58
Offering.subject_id == Subject.id,
59
Subject.code == subject,
60
Offering.semester_id == Semester.id,
61
Semester.year == year,
62
Semester.semester == semester).one()
64
self.context = self.user # XXX: Not quite right.
49
self.exercise = exercise
66
@require_permission('edit')
67
51
def GET(self, req):
68
52
"""Handles a GET Attempts action."""
69
attempts = req.store.find(ExerciseAttempt,
70
ExerciseAttempt.ws_ex_id == self.worksheet_exercise.id,
71
ExerciseAttempt.user_id == self.user.id)
53
exercise = ivle.database.Exercise.get_by_name(req.store,
56
attempts = ivle.worksheet.get_exercise_attempts(req.store, self.user,
57
exercise, allow_inactive=HISTORY_ALLOW_INACTIVE)
72
58
# attempts is a list of ExerciseAttempt objects. Convert to dictionaries
73
59
time_fmt = lambda dt: datetime.datetime.strftime(dt, TIMESTAMP_FORMAT)
74
60
attempts = [{'date': time_fmt(a.date), 'complete': a.complete}
136
123
except ValueError:
139
# XXX Hack around Google Code issue #87
140
# Query from the given date +1 secnod.
141
# Date is in seconds (eg. 3:47:12), while the data is in finer time
142
# (eg. 3:47:12.3625). The query "date <= 3:47:12" will fail because
143
# 3:47:12.3625 is greater. Hence we do the query from +1 second,
144
# "date <= 3:47:13", and it finds the correct submission, UNLESS there
145
# are multiple submissions inside the same second.
146
date += datetime.timedelta(seconds=1)
148
worksheet_exercise = req.store.find(WorksheetExercise,
149
WorksheetExercise.exercise_id == exercise,
150
WorksheetExercise.worksheet_id == Worksheet.id,
151
Worksheet.identifier == worksheet,
152
Worksheet.offering_id == Offering.id,
153
Offering.subject_id == Subject.id,
154
Subject.code == subject,
155
Offering.semester_id == Semester.id,
156
Semester.year == year,
157
Semester.semester == semester).one()
126
exercise = ivle.database.Exercise.get_by_name(req.store, exercise)
159
127
attempt = ivle.worksheet.get_exercise_attempt(req.store, user,
160
worksheet_exercise, as_of=date,
161
allow_inactive=HISTORY_ALLOW_INACTIVE)
128
exercise, as_of=date, allow_inactive=HISTORY_ALLOW_INACTIVE)
163
130
if attempt is None:
166
133
self.context = attempt
168
@require_permission('view')
169
135
def GET(self, req):
170
136
return {'code': self.context.text}
173
139
class ExerciseRESTView(JSONRESTView):
174
140
'''REST view of an exercise.'''
176
def get_permissions(self, user):
177
# XXX: Do it properly.
178
# XXX: Does any user have the ability to save as themselves?
179
# XXX: Does a user EVER have permission to save as another user?
185
@named_operation('save')
186
142
def save(self, req, text):
187
# Find the appropriate WorksheetExercise to save to. If its not found,
188
# the user is submitting against a non-existant worksheet/exercise
189
worksheet_exercise = req.store.find(WorksheetExercise,
190
WorksheetExercise.exercise_id == self.exercise,
191
WorksheetExercise.worksheet_id == Worksheet.id,
192
Worksheet.offering_id == Offering.id,
193
Offering.subject_id == Subject.id,
194
Subject.code == self.subject,
195
Offering.semester_id == Semester.id,
196
Semester.year == self.year,
197
Semester.semester == self.semester).one()
199
if worksheet_exercise is None:
202
old_save = req.store.find(ExerciseSave,
203
ExerciseSave.ws_ex_id == worksheet_exercise.id,
204
ExerciseSave.user == req.user).one()
206
#Overwrite the old, or create a new if there isn't one
208
new_save = ExerciseSave()
209
req.store.add(new_save)
213
new_save.worksheet_exercise = worksheet_exercise
214
new_save.user = req.user
215
new_save.text = unicode(text)
216
new_save.date = datetime.datetime.now()
218
return {"result": "ok"}
222
# Note that this is the view of an existing worksheet. Creation is handled
223
# by OfferingRESTView (as offerings have worksheets)
224
class WorksheetRESTView(JSONRESTView):
225
"""View used to update a worksheet."""
227
def get_permissions(self, user):
228
# XXX: Do it properly.
229
# XXX: Lecturers should be allowed to add worksheets Only to subjects
230
# under their control
239
def __init__(self, req, **kwargs):
241
self.worksheet = kwargs['worksheet']
242
self.subject = kwargs['subject']
243
self.year = kwargs['year']
244
self.semester = kwargs['semester']
246
self.context = req.store.find(Worksheet,
247
Worksheet.identifier == self.worksheet,
248
Worksheet.offering_id == Offering.id,
249
Offering.subject_id == Subject.id,
250
Subject.code == self.subject,
251
Offering.semester_id == Semester.id,
252
Semester.year == self.year,
253
Semester.semester == self.semester).one()
255
if self.context is None:
258
@named_operation('save')
259
def save(self, req, name, assessable, data, format):
260
"""Takes worksheet data and saves it."""
261
self.context.name = unicode(name)
262
self.context.assessable = self.convert_bool(assessable)
263
self.context.data = unicode(data)
264
self.context.format = unicode(format)
265
ivle.worksheet.update_exerciselist(self.context)
267
return {"result": "ok"}
269
class WorksheetsRESTView(JSONRESTView):
270
"""View used to update and create Worksheets."""
272
def get_permissions(self, user):
273
# XXX: Do it properly.
274
# XXX: Lecturers should be allowed to add worksheets Only to subjects
275
# under their control
284
def __init__(self, req, **kwargs):
286
self.subject = kwargs['subject']
287
self.year = kwargs['year']
288
self.semester = kwargs['semester']
290
self.context = req.store.find(Offering,
291
Offering.subject_id == Subject.id,
292
Subject.code == self.subject,
293
Offering.semester_id == Semester.id,
294
Semester.year == self.year,
295
Semester.semester == self.semester).one()
297
if self.context is None:
300
@named_operation('edit')
301
def add_worksheet(self, req, identifier, name, assessable, data, format):
302
"""Takes worksheet data and adds it."""
304
new_worksheet = Worksheet()
305
new_worksheet.seq_no = self.context.worksheets.count()
306
# Setting new_worksheet.offering implicitly adds new_worksheet,
307
# hence worksheets.count MUST be called above it
308
new_worksheet.offering = self.context
309
new_worksheet.identifier = unicode(identifier)
310
new_worksheet.name = unicode(name)
311
new_worksheet.assessable = self.convert_bool(assessable)
312
new_worksheet.data = unicode(data)
313
new_worksheet.format = unicode(format)
315
# This call is added for clarity, as the worksheet is implicitly added.
316
req.store.add(new_worksheet)
318
ivle.worksheet.update_exerciselist(new_worksheet)
320
return {"result": "ok"}
322
@named_operation('edit')
323
def move_up(self, req, worksheetid):
324
"""Takes a list of worksheet-seq_no pairs and updates their
325
corresponding Worksheet objects to match."""
327
worksheet_below = req.store.find(Worksheet,
328
Worksheet.offering_id == self.context.id,
329
Worksheet.identifier == unicode(worksheetid)).one()
330
if worksheet_below is None:
331
raise NotFound('worksheet_below')
332
worksheet_above = req.store.find(Worksheet,
333
Worksheet.offering_id == self.context.id,
334
Worksheet.seq_no == (worksheet_below.seq_no - 1)).one()
335
if worksheet_above is None:
336
raise NotFound('worksheet_above')
338
worksheet_below.seq_no = worksheet_below.seq_no - 1
339
worksheet_above.seq_no = worksheet_above.seq_no + 1
341
return {'result': 'ok'}
343
@named_operation('edit')
344
def move_down(self, req, worksheetid):
345
"""Takes a list of worksheet-seq_no pairs and updates their
346
corresponding Worksheet objects to match."""
348
worksheet_above = req.store.find(Worksheet,
349
Worksheet.offering_id == self.context.id,
350
Worksheet.identifier == unicode(worksheetid)).one()
351
if worksheet_above is None:
352
raise NotFound('worksheet_below')
353
worksheet_below = req.store.find(Worksheet,
354
Worksheet.offering_id == self.context.id,
355
Worksheet.seq_no == (worksheet_above.seq_no + 1)).one()
356
if worksheet_below is None:
357
raise NotFound('worksheet_above')
359
worksheet_below.seq_no = worksheet_below.seq_no - 1
360
worksheet_above.seq_no = worksheet_above.seq_no + 1
362
return {'result': 'ok'}
143
# Need to open JUST so we know this is a real exercise.
144
# (This avoids users submitting code for bogus exercises).
145
exercisefile = ivle.util.open_exercise_file(self.exercise)
146
if exercisefile is None:
150
exercise = ivle.database.Exercise.get_by_name(req.store, self.exercise)
151
ivle.worksheet.save_exercise(req.store, req.user, exercise,
152
unicode(text), datetime.datetime.now())
153
return {"result": "ok"}
added
removed
ivle/webapp/tutorial/service.py
