← Back to branch summary

~azzar1/unity/add-show-desktop-key

« back to all changes in this revision

Viewing changes to ivle/webapp/tutorial/service.py

  • Committer: William Grant
  • Date: 2010-02-23 08:48:09 UTC
  • mfrom: (1673 trunk)
  • mto: This revision was merged to the branch mainline in revision 1674.
  • Revision ID: grantw@unimelb.edu.au-20100223084809-du6dvsxrjhw15ytr
Merge trunk.

Show diffs side-by-side

added added

removed removed

Lines of Context:
ivle/webapp/tutorial/service.py
 
1
# IVLE - Informatics Virtual Learning Environment
 
2
# Copyright (C) 2007-2009 The University of Melbourne
 
3
#
 
4
# This program is free software; you can redistribute it and/or modify
 
5
# it under the terms of the GNU General Public License as published by
 
6
# the Free Software Foundation; either version 2 of the License, or
 
7
# (at your option) any later version.
 
8
#
 
9
# This program is distributed in the hope that it will be useful,
 
10
# but WITHOUT ANY WARRANTY; without even the implied warranty of
 
11
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 
12
# GNU General Public License for more details.
 
13
#
 
14
# You should have received a copy of the GNU General Public License
 
15
# along with this program; if not, write to the Free Software
 
16
# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
 
17
 
 
18
# Author: Matt Giuca, Nick Chadwick
 
19
 
 
20
'''AJAX backend for the tutorial application.'''
 
21
 
 
22
import datetime
 
23
 
 
24
import genshi
 
25
from storm.locals import Store
 
26
 
 
27
import ivle.database
 
28
from ivle.database import Exercise, ExerciseAttempt, ExerciseSave, Worksheet, \
 
29
                          Offering, Subject, Semester, User, WorksheetExercise
 
30
import ivle.worksheet.utils
 
31
from ivle.webapp.base.rest import (JSONRESTView, named_operation,
 
32
                                   require_permission)
 
33
from ivle.webapp.errors import NotFound
 
34
 
 
35
 
 
36
TIMESTAMP_FORMAT = '%Y-%m-%d %H:%M:%S'
 
37
 
 
38
 
 
39
class AttemptsRESTView(JSONRESTView):
 
40
    '''REST view of a user's attempts at an exercise.'''
 
41
 
 
42
    @require_permission('edit')
 
43
    def GET(self, req):
 
44
        """Handles a GET Attempts action."""
 
45
        attempts = req.store.find(ExerciseAttempt, 
 
46
                ExerciseAttempt.ws_ex_id == self.context.worksheet_exercise.id,
 
47
                ExerciseAttempt.user_id == self.context.user.id)
 
48
        # attempts is a list of ExerciseAttempt objects. Convert to dictionaries
 
49
        time_fmt = lambda dt: datetime.datetime.strftime(dt, TIMESTAMP_FORMAT)
 
50
        attempts = [{'date': time_fmt(a.date), 'complete': a.complete}
 
51
                for a in attempts]
 
52
 
 
53
        return attempts
 
54
 
 
55
 
 
56
    @require_permission('edit')
 
57
    def PUT(self, req, data):
 
58
        """ Tests the given submission """
 
59
        test_results = ivle.worksheet.utils.test_exercise_submission(
 
60
            req.config, req.user, self.context.worksheet_exercise.exercise,
 
61
            data['code'])
 
62
 
 
63
        attempt = ivle.database.ExerciseAttempt(user=req.user,
 
64
            worksheet_exercise = self.context.worksheet_exercise,
 
65
            date = datetime.datetime.now(),
 
66
            complete = test_results['passed'],
 
67
            text = unicode(data['code'])
 
68
        )
 
69
 
 
70
        req.store.add(attempt)
 
71
 
 
72
        # Query the DB to get an updated score on whether or not this problem
 
73
        # has EVER been completed (may be different from "passed", if it has
 
74
        # been completed before), and the total number of attempts.
 
75
        completed, attempts = ivle.worksheet.utils.get_exercise_status(
 
76
                req.store, req.user, self.context.worksheet_exercise)
 
77
        test_results["completed"] = completed
 
78
        test_results["attempts"] = attempts
 
79
 
 
80
        return test_results
 
81
 
 
82
 
 
83
class AttemptRESTView(JSONRESTView):
 
84
    '''REST view of an exercise attempt.'''
 
85
 
 
86
    @require_permission('view')
 
87
    def GET(self, req):
 
88
        return {'code': self.context.text}
 
89
 
 
90
 
 
91
class WorksheetExerciseRESTView(JSONRESTView):
 
92
    '''REST view of a worksheet exercise.'''
 
93
 
 
94
    @named_operation('view')
 
95
    def save(self, req, text):
 
96
        # Find the appropriate WorksheetExercise to save to. If its not found,
 
97
        # the user is submitting against a non-existant worksheet/exercise
 
98
 
 
99
        old_save = req.store.find(ExerciseSave,
 
100
            ExerciseSave.ws_ex_id == self.context.id,
 
101
            ExerciseSave.user == req.user).one()
 
102
        
 
103
        #Overwrite the old, or create a new if there isn't one
 
104
        if old_save is None:
 
105
            new_save = ExerciseSave()
 
106
            req.store.add(new_save)
 
107
        else:
 
108
            new_save = old_save
 
109
        
 
110
        new_save.worksheet_exercise = self.context
 
111
        new_save.user = req.user
 
112
        new_save.text = unicode(text)
 
113
        new_save.date = datetime.datetime.now()
 
114
 
 
115
        return {"result": "ok"}
 
116
 
 
117
 
 
118
class WorksheetsRESTView(JSONRESTView):
 
119
    """View used to update and create Worksheets."""
 
120
 
 
121
    @named_operation('edit_worksheets')
 
122
    def move_up(self, req, worksheetid):
 
123
        """Takes a list of worksheet-seq_no pairs and updates their 
 
124
        corresponding Worksheet objects to match."""
 
125
        
 
126
        worksheet_below = req.store.find(Worksheet,
 
127
            Worksheet.offering_id == self.context.id,
 
128
            Worksheet.identifier == unicode(worksheetid)).one()
 
129
        if worksheet_below is None:
 
130
            raise NotFound('worksheet_below')
 
131
        worksheet_above = req.store.find(Worksheet,
 
132
            Worksheet.offering_id == self.context.id,
 
133
            Worksheet.seq_no == (worksheet_below.seq_no - 1)).one()
 
134
        if worksheet_above is None:
 
135
            raise NotFound('worksheet_above')
 
136
 
 
137
        worksheet_below.seq_no = worksheet_below.seq_no - 1
 
138
        worksheet_above.seq_no = worksheet_above.seq_no + 1
 
139
        
 
140
        return {'result': 'ok'}
 
141
 
 
142
    @named_operation('edit_worksheets')
 
143
    def move_down(self, req, worksheetid):
 
144
        """Takes a list of worksheet-seq_no pairs and updates their 
 
145
        corresponding Worksheet objects to match."""
 
146
        
 
147
        worksheet_above = req.store.find(Worksheet,
 
148
            Worksheet.offering_id == self.context.id,
 
149
            Worksheet.identifier == unicode(worksheetid)).one()
 
150
        if worksheet_above is None:
 
151
            raise NotFound('worksheet_below')
 
152
        worksheet_below = req.store.find(Worksheet,
 
153
            Worksheet.offering_id == self.context.id,
 
154
            Worksheet.seq_no == (worksheet_above.seq_no + 1)).one()
 
155
        if worksheet_below is None:
 
156
            raise NotFound('worksheet_above')
 
157
 
 
158
        worksheet_below.seq_no = worksheet_below.seq_no - 1
 
159
        worksheet_above.seq_no = worksheet_above.seq_no + 1
 
160
        
 
161
        return {'result': 'ok'}