whisk_tutorial/views.py

import json

from django.shortcuts import render_to_response
from django.template import RequestContext
from django.views.decorators.csrf import csrf_exempt
from django.http import HttpResponse

from . import utils
from .models import TutorialUser, TutorialEvent, Subscriber

__author__ = 'thatcher'


def endpoint(request):
    """
    api endpoint for saving events
    """

    return render_to_response("base/home.html", {
        }, context_instance=RequestContext(request))


def testpage(request):
    """
    testing saving stuff on a users' session
    """

    username = request.session.get('username', 'unknown')

    return render_to_response("tutorial/testpage.html", {
        # "form": form,
        'username': username
    }, context_instance=RequestContext(request))

def homepage(request):

    username = request.session.get('username', 'unknown')

    return render_to_response("tutorial/home.md", {
        # "form": form,
        'username': username
    }, context_instance=RequestContext(request))

@csrf_exempt
def api(request):
    """
    saving the user's events
    """
    # if request.method == "POST":
    #     user = utils.get_user_for_request(request)

    #     event = TutorialEvent.objects.create(
    #         user=user,
    #         type=request.POST.get('type', TutorialEvent.NONE),
    #         question=request.POST.get('question', None),
    #         command=request.POST.get('command', "")[:79],
    #         feedback=request.POST.get('feedback', ""),
    #     )

    print("api method in views.py called")

    return HttpResponse('')


def subscribe(request):
    """
    Save the users' email. -- Mainly / only meant for notifying them of the availability of
    a next tutorial
    """
    if request.POST:
        user = utils.get_user_for_request(request)
        email = request.POST.get('email', None)
        from_level = request.POST.get('from_level', None)

        try:
            subscriber = Subscriber.objects.create(
                user=user, email=email, from_level=from_level)
            Subscriber.save(subscriber)
            return HttpResponse('0', status=200)
        except:
            return HttpResponse('1', status=200)
    else:
        return HttpResponse('1', status=200)


def stats(request):


    users = {}
    users['started'] = TutorialUser.objects.all().count()
    users['completed'] = TutorialEvent.objects.values_list('user', 'type').filter(type='complete').distinct().count()

    i = 0
    answered = {}
    while i < 9:
        number = TutorialEvent.objects.values_list('user', 'type', 'question').filter(type='next', question=i).distinct().count()
        answered[i] = number
        i = i + 1

    # Append the completed, because question 9 has no 'next'
    answered[9] = users['completed']


    # find which question people look for the answer
    i = 0
    peeks = {}
    while i < 10:
        number = TutorialEvent.objects.values_list('user', 'type', 'question').filter(type='peek', question=i).distinct().count()
        peeks[i] = number
        i = i + 1

    outputformat = request.GET.get("format", None)
    if outputformat:
        response = {}
        response['users'] = users
        response['peeks'] = peeks
        response['answered'] = answered
        jsonresponse = json.dumps(response)
        return HttpResponse(jsonresponse, mimetype="application/json")

    return render_to_response("tutorial/stats.html", {
        'users': users,
        'peeks': peeks,
        'answered': answered
    }, context_instance=RequestContext(request))