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Commit bc315c11 by Felix Sun
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Merge pull request #328 from edx/felix/hinter2 

Felix/hinter2
parents 4121f393 6c557261
Showing with 105 additions and 83 deletions
common/lib/xmodule/xmodule/crowdsource_hinter.py
......@@ -107,18 +107,18 @@ class CrowdsourceHinterModule(CrowdsourceHinterFields, XModule):
"""
return str(float(answer.values()[0]))
def handle_ajax(self, dispatch, get):
def handle_ajax(self, dispatch, data):
"""
This is the landing method for AJAX calls.
"""
if dispatch == 'get_hint':
out = self.get_hint(get)
out = self.get_hint(data)
elif dispatch == 'get_feedback':
out = self.get_feedback(get)
out = self.get_feedback(data)
elif dispatch == 'vote':
out = self.tally_vote(get)
out = self.tally_vote(data)
elif dispatch == 'submit_hint':
out = self.submit_hint(get)
out = self.submit_hint(data)
else:
return json.dumps({'contents': 'Error - invalid operation.'})
......@@ -128,19 +128,24 @@ class CrowdsourceHinterModule(CrowdsourceHinterFields, XModule):
out.update({'op': dispatch})
return json.dumps({'contents': self.system.render_template('hinter_display.html', out)})
def get_hint(self, get):
def get_hint(self, data):
"""
The student got the incorrect answer found in get. Give him a hint.
The student got the incorrect answer found in data. Give him a hint.
Called by hinter javascript after a problem is graded as incorrect.
Args:
`get` -- must be interpretable by capa_answer_to_str.
`data` -- must be interpretable by capa_answer_to_str.
Output keys:
- 'best_hint' is the hint text with the most votes.
- 'rand_hint_1' and 'rand_hint_2' are two random hints to the answer in `get`.
- 'rand_hint_1' and 'rand_hint_2' are two random hints to the answer in `data`.
- 'answer' is the parsed answer that was submitted.
"""
answer = self.capa_answer_to_str(get)
try:
answer = self.capa_answer_to_str(data)
except ValueError:
# Sometimes, we get an answer that's just not parsable. Do nothing.
log.exception('Answer not parsable: ' + str(data))
return
# Look for a hint to give.
# Make a local copy of self.hints - this means we only need to do one json unpacking.
# (This is because xblocks storage makes the following command a deep copy.)
......@@ -176,12 +181,12 @@ class CrowdsourceHinterModule(CrowdsourceHinterFields, XModule):
'rand_hint_2': rand_hint_2,
'answer': answer}
def get_feedback(self, get):
def get_feedback(self, data):
"""
The student got it correct. Ask him to vote on hints, or submit a hint.
Args:
`get` -- not actually used. (It is assumed that the answer is correct.)
`data` -- not actually used. (It is assumed that the answer is correct.)
Output keys:
- 'index_to_hints' maps previous answer indices to hints that the user saw earlier.
- 'index_to_answer' maps previous answer indices to the actual answer submitted.
......@@ -216,20 +221,20 @@ class CrowdsourceHinterModule(CrowdsourceHinterFields, XModule):
return {'index_to_hints': index_to_hints, 'index_to_answer': index_to_answer}
def tally_vote(self, get):
def tally_vote(self, data):
"""
Tally a user's vote on his favorite hint.
Args:
`get` -- expected to have the following keys:
`data` -- expected to have the following keys:
'answer': ans_no (index in previous_answers)
'hint': hint_pk
Returns key 'hint_and_votes', a list of (hint_text, #votes) pairs.
"""
if self.user_voted:
return {}
ans_no = int(get['answer'])
hint_no = str(get['hint'])
ans_no = int(data['answer'])
hint_no = str(data['hint'])
answer = self.previous_answers[ans_no][0]
# We use temp_dict because we need to do a direct write for the database to update.
temp_dict = self.hints
......@@ -249,19 +254,19 @@ class CrowdsourceHinterModule(CrowdsourceHinterFields, XModule):
self.previous_answers = []
return {'hint_and_votes': hint_and_votes}
def submit_hint(self, get):
def submit_hint(self, data):
"""
Take a hint submission and add it to the database.
Args:
`get` -- expected to have the following keys:
`data` -- expected to have the following keys:
'answer': answer index in previous_answers
'hint': text of the new hint that the user is adding
Returns a thank-you message.
"""
# Do html escaping. Perhaps in the future do profanity filtering, etc. as well.
hint = escape(get['hint'])
answer = self.previous_answers[int(get['answer'])][0]
hint = escape(data['hint'])
answer = self.previous_answers[int(data['answer'])][0]
# Only allow a student to vote or submit a hint once.
if self.user_voted:
return {'message': 'Sorry, but you have already voted!'}
......
common/lib/xmodule/xmodule/tests/test_crowdsource_hinter.py
......@@ -185,15 +185,15 @@ class CrowdsourceHinterTest(unittest.TestCase):
A simple test of get_html - make sure it returns the html of the inner
problem.
"""
m = CHModuleFactory.create()
mock_module = CHModuleFactory.create()
def fake_get_display_items():
"""
A mock of get_display_items
"""
return [FakeChild()]
m.get_display_items = fake_get_display_items
out_html = m.get_html()
mock_module.get_display_items = fake_get_display_items
out_html = mock_module.get_html()
self.assertTrue('This is supposed to be test html.' in out_html)
self.assertTrue('this/is/a/fake/ajax/url' in out_html)
......@@ -202,15 +202,15 @@ class CrowdsourceHinterTest(unittest.TestCase):
get_html, except the module has no child :( Should return a polite
error message.
"""
m = CHModuleFactory.create()
mock_module = CHModuleFactory.create()
def fake_get_display_items():
"""
Returns no children.
"""
return []
m.get_display_items = fake_get_display_items
out_html = m.get_html()
mock_module.get_display_items = fake_get_display_items
out_html = mock_module.get_html()
self.assertTrue('Error in loading crowdsourced hinter' in out_html)
@unittest.skip("Needs to be finished.")
......@@ -220,8 +220,8 @@ class CrowdsourceHinterTest(unittest.TestCase):
is called.
NOT WORKING RIGHT NOW
"""
m = VerticalWithModulesFactory.create()
out_html = m.get_html()
mock_module = VerticalWithModulesFactory.create()
out_html = mock_module.get_html()
print out_html
self.assertTrue('Test numerical problem.' in out_html)
self.assertTrue('Another test numerical problem.' in out_html)
......@@ -232,20 +232,32 @@ class CrowdsourceHinterTest(unittest.TestCase):
- Output should be blank.
- New entry should be added to previous_answers
"""
m = CHModuleFactory.create()
mock_module = CHModuleFactory.create()
json_in = {'problem_name': '26.0'}
out = m.get_hint(json_in)
out = mock_module.get_hint(json_in)
self.assertTrue(out is None)
self.assertTrue(['26.0', [None, None, None]] in m.previous_answers)
self.assertTrue(['26.0', [None, None, None]] in mock_module.previous_answers)
def test_gethint_unparsable(self):
"""
Someone submits a hint that cannot be parsed into a float.
- The answer should not be added to previous_answers.
"""
mock_module = CHModuleFactory.create()
old_answers = copy.deepcopy(mock_module.previous_answers)
json_in = {'problem_name': 'fish'}
out = mock_module.get_hint(json_in)
self.assertTrue(out is None)
self.assertTrue(mock_module.previous_answers == old_answers)
def test_gethint_1hint(self):
"""
Someone asks for a hint, with exactly one hint in the database.
Output should contain that hint.
"""
m = CHModuleFactory.create()
mock_module = CHModuleFactory.create()
json_in = {'problem_name': '25.0'}
out = m.get_hint(json_in)
out = mock_module.get_hint(json_in)
self.assertTrue(out['best_hint'] == 'Really popular hint')
def test_gethint_manyhints(self):
......@@ -256,9 +268,9 @@ class CrowdsourceHinterTest(unittest.TestCase):
Currently, the best hint could be returned twice - need to fix this
in implementation.
"""
m = CHModuleFactory.create()
mock_module = CHModuleFactory.create()
json_in = {'problem_name': '24.0'}
out = m.get_hint(json_in)
out = mock_module.get_hint(json_in)
self.assertTrue(out['best_hint'] == 'Best hint')
self.assertTrue('rand_hint_1' in out)
self.assertTrue('rand_hint_2' in out)
......@@ -268,9 +280,9 @@ class CrowdsourceHinterTest(unittest.TestCase):
Someone has gotten the problem correct on the first try.
Output should be empty.
"""
m = CHModuleFactory.create(previous_answers=[])
mock_module = CHModuleFactory.create(previous_answers=[])
json_in = {'problem_name': '42.5'}
out = m.get_feedback(json_in)
out = mock_module.get_feedback(json_in)
self.assertTrue(out is None)
def test_getfeedback_1wronganswer_nohints(self):
......@@ -279,9 +291,9 @@ class CrowdsourceHinterTest(unittest.TestCase):
answer. However, we don't actually have hints for this problem.
There should be a dialog to submit a new hint.
"""
m = CHModuleFactory.create(previous_answers=[['26.0', [None, None, None]]])
mock_module = CHModuleFactory.create(previous_answers=[['26.0', [None, None, None]]])
json_in = {'problem_name': '42.5'}
out = m.get_feedback(json_in)
out = mock_module.get_feedback(json_in)
print out['index_to_answer']
self.assertTrue(out['index_to_hints'][0] == [])
self.assertTrue(out['index_to_answer'][0] == '26.0')
......@@ -292,9 +304,9 @@ class CrowdsourceHinterTest(unittest.TestCase):
a voting dialog, with the correct choices, plus a hint submission
dialog.
"""
m = CHModuleFactory.create(previous_answers=[['24.0', [0, 3, None]]])
mock_module = CHModuleFactory.create(previous_answers=[['24.0', [0, 3, None]]])
json_in = {'problem_name': '42.5'}
out = m.get_feedback(json_in)
out = mock_module.get_feedback(json_in)
print out['index_to_hints']
self.assertTrue(len(out['index_to_hints'][0]) == 2)
......@@ -303,10 +315,10 @@ class CrowdsourceHinterTest(unittest.TestCase):
Someone gets a problem correct, but one of the hints that he saw
earlier (pk=100) has been deleted. Should just skip that hint.
"""
m = CHModuleFactory.create(
mock_module = CHModuleFactory.create(
previous_answers=[['24.0', [0, 100, None]]])
json_in = {'problem_name': '42.5'}
out = m.get_feedback(json_in)
out = mock_module.get_feedback(json_in)
self.assertTrue(len(out['index_to_hints'][0]) == 1)
def test_vote_nopermission(self):
......@@ -314,23 +326,23 @@ class CrowdsourceHinterTest(unittest.TestCase):
A user tries to vote for a hint, but he has already voted!
Should not change any vote tallies.
"""
m = CHModuleFactory.create(user_voted=True)
mock_module = CHModuleFactory.create(user_voted=True)
json_in = {'answer': 0, 'hint': 1}
old_hints = copy.deepcopy(m.hints)
m.tally_vote(json_in)
self.assertTrue(m.hints == old_hints)
old_hints = copy.deepcopy(mock_module.hints)
mock_module.tally_vote(json_in)
self.assertTrue(mock_module.hints == old_hints)
def test_vote_withpermission(self):
"""
A user votes for a hint.
Also tests vote result rendering.
"""
m = CHModuleFactory.create(
mock_module = CHModuleFactory.create(
previous_answers=[['24.0', [0, 3, None]]])
json_in = {'answer': 0, 'hint': 3}
dict_out = m.tally_vote(json_in)
self.assertTrue(m.hints['24.0']['0'][1] == 40)
self.assertTrue(m.hints['24.0']['3'][1] == 31)
dict_out = mock_module.tally_vote(json_in)
self.assertTrue(mock_module.hints['24.0']['0'][1] == 40)
self.assertTrue(mock_module.hints['24.0']['3'][1] == 31)
self.assertTrue(['Best hint', 40] in dict_out['hint_and_votes'])
self.assertTrue(['Another hint', 31] in dict_out['hint_and_votes'])
......@@ -338,34 +350,34 @@ class CrowdsourceHinterTest(unittest.TestCase):
"""
A user tries to submit a hint, but he has already voted.
"""
m = CHModuleFactory.create(user_voted=True)
mock_module = CHModuleFactory.create(user_voted=True)
json_in = {'answer': 1, 'hint': 'This is a new hint.'}
print m.user_voted
m.submit_hint(json_in)
print m.hints
self.assertTrue('29.0' not in m.hints)
print mock_module.user_voted
mock_module.submit_hint(json_in)
print mock_module.hints
self.assertTrue('29.0' not in mock_module.hints)
def test_submithint_withpermission_new(self):
"""
A user submits a hint to an answer for which no hints
exist yet.
"""
m = CHModuleFactory.create()
mock_module = CHModuleFactory.create()
json_in = {'answer': 1, 'hint': 'This is a new hint.'}
m.submit_hint(json_in)
self.assertTrue('29.0' in m.hints)
mock_module.submit_hint(json_in)
self.assertTrue('29.0' in mock_module.hints)
def test_submithint_withpermission_existing(self):
"""
A user submits a hint to an answer that has other hints
already.
"""
m = CHModuleFactory.create(previous_answers=[['25.0', [1, None, None]]])
mock_module = CHModuleFactory.create(previous_answers=[['25.0', [1, None, None]]])
json_in = {'answer': 0, 'hint': 'This is a new hint.'}
m.submit_hint(json_in)
mock_module.submit_hint(json_in)
# Make a hint request.
json_in = {'problem name': '25.0'}
out = m.get_hint(json_in)
out = mock_module.get_hint(json_in)
self.assertTrue((out['best_hint'] == 'This is a new hint.')
or (out['rand_hint_1'] == 'This is a new hint.'))
......@@ -375,27 +387,27 @@ class CrowdsourceHinterTest(unittest.TestCase):
show up in the mod_queue, not the public-facing hints
dict.
"""
m = CHModuleFactory.create(moderate='True')
mock_module = CHModuleFactory.create(moderate='True')
json_in = {'answer': 1, 'hint': 'This is a new hint.'}
m.submit_hint(json_in)
self.assertTrue('29.0' not in m.hints)
self.assertTrue('29.0' in m.mod_queue)
mock_module.submit_hint(json_in)
self.assertTrue('29.0' not in mock_module.hints)
self.assertTrue('29.0' in mock_module.mod_queue)
def test_submithint_escape(self):
"""
Make sure that hints are being html-escaped.
"""
m = CHModuleFactory.create()
mock_module = CHModuleFactory.create()
json_in = {'answer': 1, 'hint': '<script> alert("Trololo"); </script>'}
m.submit_hint(json_in)
print m.hints
self.assertTrue(m.hints['29.0'][0][0] == u'&lt;script&gt; alert(&quot;Trololo&quot;); &lt;/script&gt;')
mock_module.submit_hint(json_in)
print mock_module.hints
self.assertTrue(mock_module.hints['29.0'][0][0] == u'&lt;script&gt; alert(&quot;Trololo&quot;); &lt;/script&gt;')
def test_template_gethint(self):
"""
Test the templates for get_hint.
"""
m = CHModuleFactory.create()
mock_module = CHModuleFactory.create()
def fake_get_hint(get):
"""
......@@ -407,9 +419,9 @@ class CrowdsourceHinterTest(unittest.TestCase):
'rand_hint_2': 'Another random hint',
'answer': '42.5'}
m.get_hint = fake_get_hint
mock_module.get_hint = fake_get_hint
json_in = {'problem_name': '42.5'}
out = json.loads(m.handle_ajax('get_hint', json_in))['contents']
out = json.loads(mock_module.handle_ajax('get_hint', json_in))['contents']
self.assertTrue('This is the best hint.' in out)
self.assertTrue('A random hint' in out)
self.assertTrue('Another random hint' in out)
......@@ -420,7 +432,7 @@ class CrowdsourceHinterTest(unittest.TestCase):
NOT FINISHED
from lxml import etree
m = CHModuleFactory.create()
mock_module = CHModuleFactory.create()
def fake_get_feedback(get):
index_to_answer = {'0': '42.0', '1': '9000.01'}
......@@ -429,9 +441,9 @@ class CrowdsourceHinterTest(unittest.TestCase):
'1': [('A hint for 9000.01', 32)]}
return {'index_to_hints': index_to_hints, 'index_to_answer': index_to_answer}
m.get_feedback = fake_get_feedback
mock_module.get_feedback = fake_get_feedback
json_in = {'problem_name': '42.5'}
out = json.loads(m.handle_ajax('get_feedback', json_in))['contents']
out = json.loads(mock_module.handle_ajax('get_feedback', json_in))['contents']
html_tree = etree.XML(out)
# To be continued...
......
common/templates/hinter_display.html
......@@ -95,13 +95,17 @@ What would you say to help someone who got this wrong answer?
</%def>
<%def name="show_votes()">
Thank you for voting!
<br />
% for hint, votes in hint_and_votes:
<span style="color:green"> ${votes} votes. </span>
${hint}
<br />
% endfor
% if hint_and_votes is UNDEFINED:
Sorry, but you've already voted!
% else:
Thank you for voting!
<br />
% for hint, votes in hint_and_votes:
<span style="color:green"> ${votes} votes. </span>
${hint}
<br />
% endfor
% endif
</%def>
<%def name="simple_message()">
......@@ -123,3 +127,4 @@ What would you say to help someone who got this wrong answer?
% if op == "vote":
${show_votes()}
% endif
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