def setlesson(request,lesson_id):
"""Adds this lesson to the active deck.
"""
# put this lesson into the model
model = get_model(request)
if model is None:
resetdeck(request)
model = get_model(request)
model.set_active_lesson(lesson_id)
save_model(request, model)
# send them off to study
return HttpResponseRedirect("/study/")
def setlesson(request, lesson_id):
"""Adds this lesson to the active deck.
"""
# put this lesson into the model
model = get_model(request)
if model is None:
resetdeck(request)
model = get_model(request)
model.set_active_lesson(lesson_id)
save_model(request, model)
# send them off to study
return HttpResponseRedirect("/study/")
def impression(request):
"""Logs that the user had an impression of a card.
This is called frequently by the studyui.
Turns user action into an Impression object.
"""
# For testing slow/unreliable server...
#time.sleep(3)
# put this into a database table...
i = Impression()
#print request.POST
i.answer = request.POST['answer']
i.concept_id = long(request.POST['id'])
i.user = request.user
i.timer_show = request.POST.get('showtimer')
i.timer_submit = request.POST.get('submittimer')
i.save()
#print "times: %s,%s ms" % (request.POST['showtime'], request.POST['submittime'])
# tell the learning model about the impression
model = get_model(request)
concept = model.log_impression(i)
save_model(request, model)
# return a simple HTTP response
return HttpResponse("OK", mimetype='text/plain')
def jsondeck(request):
"""Renders the entire deck in JSON for use with the dnd deckview
"""
model = get_model(request)
data = {}
for pile in model.supported_piles():
data[pile]=[]
for card in model.cards_in_pile(pile):
ert = model._get_card_metadata(card,'ert') #TODO: Not portable!
next_exposure_str = None
if ert:
impression = card.history().lookup_last_impression()
if impression:
next_exposure = impression.answered_date + datetime.timedelta(seconds = ert)
next_exposure_str = str(next_exposure - datetime.datetime.now())
datum = {'card': card.json(),
'ert': ert,
'next': next_exposure_str,
}
data[pile].append( datum )
return HttpResponse(
json.dumps(data),
mimetype='text/plain'
)
def get_many_qa(request, numcards):
"""Fetches the next 'numcard' cards to be displayed. Similar to getqa.
Returns a json array, with the first element being the sequence number
and each subsequent element being a json card object.
Allows smart client to pre-fetch multiple cards to minimize user latency.
Guaranteed not to modify the model state -- it won't be saved!
"""
# For testing slow/unreliable server...
#time.sleep(3)
#if random.uniform(0,1) < 0.5:
#raise NotImplmentedError()
# manually casting seems to avoid unicode wierdness
numcards = int(numcards)
model = get_model(request)
# stash the sequence number at the beginning
data = [model.get_sequence()]
# ask the model for all the cards to show
cards = model.choose_many_cards(numcards)
for card in cards:
data.append(card.json())
return HttpResponse(json.dumps(data), mimetype='text/plain')
def impression(request):
"""Logs that the user had an impression of a card.
This is called frequently by the studyui.
Turns user action into an Impression object.
"""
# For testing slow/unreliable server...
#time.sleep(3)
# put this into a database table...
i = Impression()
#print request.POST
i.answer = request.POST['answer']
i.concept_id = long(request.POST['id'])
i.user = request.user
i.timer_show = request.POST.get('showtimer')
i.timer_submit = request.POST.get('submittimer')
i.save()
#print "times: %s,%s ms" % (request.POST['showtime'], request.POST['submittime'])
# tell the learning model about the impression
model = get_model(request)
concept = model.log_impression(i)
save_model(request, model)
# return a simple HTTP response
return HttpResponse("OK", mimetype='text/plain')
def get_many_qa(request,numcards):
"""Fetches the next 'numcard' cards to be displayed. Similar to getqa.
Returns a json array, with the first element being the sequence number
and each subsequent element being a json card object.
Allows smart client to pre-fetch multiple cards to minimize user latency.
Guaranteed not to modify the model state -- it won't be saved!
"""
# For testing slow/unreliable server...
#time.sleep(3)
#if random.uniform(0,1) < 0.5:
#raise NotImplmentedError()
# manually casting seems to avoid unicode wierdness
numcards = int(numcards)
model = get_model(request)
# stash the sequence number at the beginning
data = [ model.get_sequence() ]
# ask the model for all the cards to show
cards = model.choose_many_cards(numcards)
for card in cards:
data.append( card.json() )
return HttpResponse(
json.dumps(data),
mimetype='text/plain'
)
def dnddeckview(request):
"""Shows the old drag-n-drop deck view which doesn't do much
"""
model = get_model(request)
return render_to_response("deck/dnddeck.html", {
'piles': model.supported_piles(),
}, context_instance=RequestContext(request))
def debugmodel(request):
"""Dumps out the model in human-readable form.
Also displays a form for allowing the debugger to post an impression and see
any error message
"""
model = get_model(request)
str = u"%s" % model
return render_to_response("study/debug.html", {'debugstring': str})
def debugmodel(request):
"""Dumps out the model in human-readable form.
Also displays a form for allowing the debugger to post an impression and see
any error message
"""
model = get_model(request)
str = u"%s" % model
return render_to_response("study/debug.html", { 'debugstring': str } )
def jsoncard(request, card_id):
"""Renders JSON for a single card
TODO: HTTP-cache these, since they're immutable
(This is not actually used...)
"""
model = get_model(request)
card = Card.lookup_card(card_id)
data = card.json()
return HttpResponse(json.dumps(data), mimetype='text/plain')
def studyui(request):
"""Shows the UI which presents cards and solicits the responses.
This UI is all ajaxy and doesn't need any server-side data.
#TODO: move this to static media
"""
if get_model(request) is None:
#TODO: generalize this to send you to a 'pick a lesson' page
return HttpResponseRedirect("/chinese/")
return render_to_response("study/studyui.html", context_instance=RequestContext(request))
def studyui(request):
"""Shows the UI which presents cards and solicits the responses.
This UI is all ajaxy and doesn't need any server-side data.
#TODO: move this to static media
"""
if get_model(request) is None:
#TODO: generalize this to send you to a 'pick a lesson' page
return HttpResponseRedirect("/chinese/")
return render_to_response("study/studyui.html",
context_instance=RequestContext(request))
def jsoncard(request, card_id):
"""Renders JSON for a single card
TODO: HTTP-cache these, since they're immutable
(This is not actually used...)
"""
model = get_model(request)
card = Card.lookup_card(card_id)
data = card.json()
return HttpResponse(
json.dumps(data),
mimetype='text/plain'
)
def debug_card(request,card_id):
card = Card.lookup_card(card_id)
model = get_model(request)
history = card.history()
params = {}
params['pile'] = model.which_pile(card)
params['ert'] = safe_timedelta(seconds = model.get_ert(card))
params['estimated_ert'] = safe_timedelta(model._estimate_ert(card))
params['longest_yes'] = history.delay_on_longest_yes()
params['most_recent_yes'] = history.delay_on_most_recent_yes()[0]
params['how_far_back_most_recent_yes'] = history.delay_on_most_recent_yes()[1]
params['next_exposure'] = model.next_exposure_date(card)
params['last_exposure'] = history.lookup_last_impression()
params['answer_history'] = history.full_impression_history(20)
return render_to_response("deck/debug_card.html", params,
context_instance=RequestContext(request))
def getqa(request):
"""Returns the next card to display to the user.
This is called frequently by the studyui.
Guaranteed not to modify the model state -- it won't be saved!
"""
# call the model to pick the next card to show
model = get_model(request)
card = model.choose_card()
# Note: I'm changing the contract here.
# Models aren't allowed to change their state when picking a card.
# Picking a card has no side-effects.
# This is not a big burden on the model, but greatly simplifies
# the client.
#save_model(request, model)
data = card.json()
return HttpResponse(json.dumps(data), mimetype='text/plain')
def show_meta(request):
# first, fetch the recent impressions
recent_impressions = Impression.objects.order_by('-answered_date').filter(user=request.user)
# limit to last 30 impressions
recent_impressions = recent_impressions[0:29]
# now build a list of card Q's, with the pile for each card.
# don't eliminate duplicate cards
model = get_model(request)
recent_cards = []
for impression in recent_impressions:
#print "id %s" % impression.concept.id
card = Card.lookup_card(impression.concept.id)
pile = model.which_pile(card)
ert = model._get_card_metadata(card,'ert') #TODO: Not portable!
logging.debug("ert for %s is %s" % (card,ert))
if ert:
next_exposure = impression.answered_date + datetime.timedelta(seconds = ert)
else:
next_exposure = None
recent_cards.append( (card.question(), pile, card, ert, next_exposure) )
#
# fetch counts for each pile
#
pilecount = []
for pile in model.supported_piles():
pilecount.append( (pile, len( model.cards_in_pile(pile) ) ) )
# and the description
description = model.description
templatevars = {
'recent_cards': recent_cards,
'pilecount': pilecount,
'description': description,
}
return render_to_response("deck/show_meta.html", templatevars)
def getqa(request):
"""Returns the next card to display to the user.
This is called frequently by the studyui.
Guaranteed not to modify the model state -- it won't be saved!
"""
# call the model to pick the next card to show
model = get_model(request)
card = model.choose_card()
# Note: I'm changing the contract here.
# Models aren't allowed to change their state when picking a card.
# Picking a card has no side-effects.
# This is not a big burden on the model, but greatly simplifies
# the client.
#save_model(request, model)
data = card.json()
return HttpResponse(
json.dumps(data),
mimetype='text/plain'
)
def deckview(request):
"""Shows you a list of recent cards.
"""
# first, fetch the recent impressions
recent_impressions = Impression.objects.order_by('-answered_date').filter(user=request.user)
# limit to last 30 impressions
recent_impressions = recent_impressions[0:29]
# now build a list of card Q's, with the pile for each card.
# don't eliminate duplicate cards
model = get_model(request)
recent_cards = []
for impression in recent_impressions:
#print "id %s" % impression.concept.id
card = Card.lookup_card(impression.concept.id)
pile = model.which_pile(card)
recent_cards.append( (card.question(), pile, card) )
#
# fetch counts for each pile
#
pilecount = []
for pile in model.supported_piles():
pilecount.append( (pile, len( model.cards_in_pile(pile) ) ) )
# and the description
description = model.description
templatevars = {
'recent_cards': recent_cards,
'pilecount': pilecount,
'description': description,
}
return render_to_response("deck/deckview.html", templatevars)
def create_review_deck(request):
""" Creates a deck forreviewing old material.
Wipes out the current deck
"""
# start over with a new model
resetdeck(request)
model = get_model(request)
# Fetch a bunch of impressions
all_no = Impression.objects.filter(user=request.user, answer="No")
all_kinda = Impression.objects.filter(user=request.user, answer="Kinda")
# add up the bad impressions
bad_total = {}
for impression in all_kinda:
id = impression.concept_id
# TUNE: 1 point per kinda
if id not in bad_total:
bad_total[ impression.concept_id ] = 1
else:
bad_total[ impression.concept_id ] += 1
for impression in all_no:
id = impression.concept_id
# TUNE: 3 points per no
if id not in bad_total:
bad_total[ impression.concept_id ] = 3
else:
bad_total[ impression.concept_id ] += 3
# invert the map so it maps # bad points to concepts.
# Note there could be collisions here, so build a list for each num pts
inverted_bad_total = {}
for id, pts in bad_total.items():
# TUNE: Minimum threshhold for something to be reviewable
if pts > 2:
if pts not in inverted_bad_total:
inverted_bad_total[pts]=[id]
else:
inverted_bad_total[pts].append(id)
# Prepare results list
review_cards = []
# Now we put together our list of cards, in order of badness
#print "ibt: %s" % inverted_bad_total
pts_order_desc = inverted_bad_total.keys()
pts_order_desc.reverse()
#print "pod: %s" % pts_order_desc
for pts in pts_order_desc:
for card in inverted_bad_total[pts]:
review_cards.append(card)
# Now put them all into the model
model.add_new_cards("Review of difficult cards", review_cards)
# Write the model back
save_model(request,model)
# redirect to a standard deck view
return HttpResponseRedirect("/deck/")