Files
web2.0-backend/infoscreen/views.py
T
2017-09-20 23:19:50 +03:00

247 lines
8.1 KiB
Python

from django.shortcuts import render
from django.http import HttpResponse, HttpResponseBadRequest
from django.views.decorators.csrf import ensure_csrf_cookie
from django.views.decorators.http import require_http_methods
from django.contrib.contenttypes.models import ContentType
from django.contrib.auth.decorators import permission_required
from infoscreen.models import UploadFileForm
import sikweb.settings as settings
import json
import logging
import threading
import requests
from infoscreen.models import Rotation, InfoItem, InfoInstance
from infoscreen.models import ABBInfoItem, ExternalImageInfoItem, ImageInfoItem, SossoInfoItem, HslInfoItem
from infoscreen.models import EventInfoItem
from infoscreen.models import ExternalWebsiteInfoItem
from infoscreen.models import ImageUploadForm
from infoscreen.models import HSLDataModel
from infoscreen.models import ApyInfoItem
from infoscreen.models import VideoInfoItem
from infoscreen.hsl_fetcher import HSLFetcher
def index(request, idx, *args, **kwargs):
return render(request, 'infoscreen_index.html', {'rotation': idx})
@permission_required('infoscreen.change_infoinstance', login_url='/login')
def admin(request, *args, **kwargs):
return render(request, 'infoscreen_admin.html', {})
def default(request, *args, **kwargs):
try:
first = Rotation.objects.all()[0].id
except:
first = 0
return index(request, first, *args, **kwargs)
def get_apy_json(request):
return HttpResponse(requests.get("https://api-diilikone.apy.fi/deals/top-groups").text)
@require_http_methods(["GET"])
def rotation(request, idx, *args, **kwargs):
try:
rotation = Rotation.objects.get(pk=idx)
except Rotation.DoesNotExist:
resp = HttpResponse('{"error": "Rotation not found"}')
resp.status_code = 404
return resp
return HttpResponse(json.dumps(rotation.get_dict()))
def create_item_generator(model):
@ensure_csrf_cookie
@require_http_methods(["POST"])
@permission_required('infoscreen.change_infoinstance', login_url='/login')
def create_item(request, *args, **kwargs):
try:
data = json.loads(request.body.decode("utf-8"))
except ValueError:
return HttpResponseBadRequest('{"status":"failure","error":"invalid json supplied"}')
try:
model.create_from_dict(data)
return HttpResponse('{"status":"success"}')
except RuntimeError as e:
return HttpResponseBadRequest(json.dumps({"status": "failure", "error": str(e)}))
return create_item
def delete_item_generator(model):
@ensure_csrf_cookie
@require_http_methods(["DELETE"])
@permission_required('infoscreen.change_infoinstance', login_url='/login')
def delete_item(request, *args, **kwargs):
idx = kwargs.pop("idx", 0)
try:
item = model.objects.get(pk=idx)
except model.DoesNotExist:
resp = HttpResponse('{"error":"object not found"}')
resp.status_code = 404
return resp
try:
item.delete()
return HttpResponse('{"status":"success"}')
except:
resp = HttpResponse('{"error" : "could not delete item"}')
resp.status_code = 500
return resp
return delete_item
# due to model structure this is little complicated
@ensure_csrf_cookie
@permission_required('infoscreen.change_infoinstance', login_url='/login')
@require_http_methods(["DELETE"])
def delete_info_item(request, *args, **kwargs):
type_id = kwargs.pop("type_id", 0)
idx = kwargs.pop("idx", 0)
if True:
ct = ContentType.objects.get_for_id(type_id)
item = ct.get_object_for_this_type(pk=idx)
else:
resp = HttpResponse('{"error":"object not found"}')
resp.status_code = 404
return resp
try:
item.delete()
return HttpResponse('{"status":"success"}')
except:
resp = HttpResponse('{"error" : "could not delete item"}')
resp.status_code = 500
return resp
@require_http_methods(["GET"])
def rotations(request, *args, **kwargs):
rotations = list(map(lambda r: r.get_list(), Rotation.objects.all()))
return HttpResponse(json.dumps(rotations))
@require_http_methods(["GET"])
def info_types(request, *args, **kwargs):
types = []
classes = InfoItem.get_subclasses()
for c in classes:
types.append({
"name": c.display_name,
"create_template_url": c.get_create_template_url(),
})
return HttpResponse(json.dumps(types))
def info_items(request, *args, **kwargs):
items = []
classes = InfoItem.get_subclasses()
for c in classes:
for i in c.objects.all():
items.append(i.get_dict())
return HttpResponse(json.dumps(items))
@require_http_methods(["POST"])
@ensure_csrf_cookie
@permission_required('infoscreen.change_infoinstance', login_url='/login')
def create_image_item(request, *args, **kwargs):
form = ImageUploadForm(request.POST, request.FILES)
if not form.is_valid():
return HttpResponseBadRequest('{"status": "failure",'
'"error": "invalid data supplied"}')
img = form.cleaned_data['image']
name = form.cleaned_data['name']
ImageInfoItem.objects.create(img=img, name=name)
return HttpResponse('{"status":"success"}')
@require_http_methods(["POST"])
@ensure_csrf_cookie
@permission_required('infoscreen.change_infoinstance', login_url='/login')
def create_video_item(request, *args, **kwargs):
form = UploadFileForm(request.POST, request.FILES)
if not form.is_valid():
return HttpResponseBadRequest('{"status": "failure",'
'"error": "invalid data supplied"}')
video = form.cleaned_data['video']
name = form.cleaned_data['name']
VideoInfoItem.objects.create(video=video, name=name)
return HttpResponse('{"status": "success"}')
@require_http_methods(["POST"])
@ensure_csrf_cookie
@permission_required('infoscreen.add_rotation', login_url='/login')
def create_rotation(request, *args, **kwargs):
try:
data = json.loads(request.body.decode("utf-8"))
except:
return HttpResponse('{"error": "bad post body!"}', status=400)
try:
name = data["name"]
Rotation.objects.create(name=name)
resp = HttpResponse(status=200)
except:
resp = HttpResponse('{"error" : "could not create rotation!"}', status=400)
return resp
@require_http_methods(["DELETE"])
@ensure_csrf_cookie
@permission_required('infoscreen.delete_rotation', login_url='/login')
def delete_rotation(request, *args, **kwargs):
id = kwargs.pop("id", 0)
logging.warning("Deleting rotation with id={}".format(id))
try:
Rotation.objects.filter(id=id).delete()
resp = HttpResponse(status=200)
except:
resp = HttpResponse('{"error" : "could not delete rotation!"}', status=400)
return resp
@require_http_methods(["GET"])
def hsl_timetable_settings(request, *args, **kwargs):
d = {"departure_threshold": settings.HSL_DEPARTURE_THRESHOLD,
"hurry_threshold": settings.HSL_HURRY_THRESHOLD}
resp = json.dumps(d)
return HttpResponse(resp, status=200)
@require_http_methods(["GET"])
def CurrentHSLView(request, *args, **kwargs):
fetcher = HSLFetcher()
fetcherThread = threading.Thread(target=fetcher.fetch_if_needed, args=[])
fetcherThread.setDaemon(False)
fetcherThread.start()
data = HSLDataModel.objects.all()
if len(data) < 1:
return HttpResponse('{"error" : "Could not find timetables from database."}', status=500)
return HttpResponse(data[len(data) - 1].data, status=200)
createInstance = create_item_generator(InfoInstance)
deleteInstance = delete_item_generator(InfoInstance)
createABBItem = create_item_generator(ABBInfoItem)
createSossoItem = create_item_generator(SossoInfoItem)
createHslItem = create_item_generator(HslInfoItem)
createExternalImageInfoItem = create_item_generator(ExternalImageInfoItem)
createExternalWebsiteItem = create_item_generator(ExternalWebsiteInfoItem)
createEventItem = create_item_generator(EventInfoItem)
createApyItem = create_item_generator(ApyInfoItem)
createVideoItem = create_item_generator(VideoInfoItem)