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from django.contrib.auth.decorators import login_required
from django.http import JsonResponse
from django.template import loader
from django.views.generic import View, ListView
from django.views.decorators.csrf import csrf_exempt
from django.views.decorators.http import require_http_methods
from .models import Course, Like
from .filters import CourseFilter
@login_required
@csrf_exempt
@require_http_methods(['POST'])
def likes(request, course_id):
try:
course = Course.objects.prefetch_related('likes').get(id=course_id)
except Course.DoesNotExist:
return JsonResponse({
'success': False,
'errors': ['Course with id f{cource_id} not found']
})
else:
course_user_likes = course.likes.filter(user=request.user)
if course_user_likes.exists():
is_liked = False
for _course in course_user_likes.all():
course.likes.remove(_course)
course_user_likes.delete()
else:
is_liked = True
course.likes.add(Like.objects.create(user=request.user))
count = course.likes.count()
return JsonResponse({
"success": True,
"likes_count": count,
"is_liked": is_liked,
})
class CoursesView(ListView):
model = Course
context_object_name = 'course_items'
paginate_by = 6
def get(self, request, *args, **kwargs):
self.object_list = self.get_queryset()
allow_empty = self.get_allow_empty()
if request.is_ajax():
context = self.get_context_data()
template_name = self.get_template_names()
html = loader.render_to_string(template_name, context)
is_paginated = context.get('is_paginated')
if is_paginated:
page_obj = context.get('page_obj')
prev_url = request.path + '?page=' + str(page_obj.previous_page_number()) if page_obj.has_previous() else None
next_url = request.path + '?page=' + str(page_obj.next_page_number()) if page_obj.has_next() else None
else:
prev_url = None
next_url = None
return JsonResponse({
'success': True,
'content': html,
'prev_url': prev_url,
'next_url': next_url,
})
else:
return super().get(request, args, kwargs)
def get_queryset(self):
queryset = super().get_queryset()
filtered = CourseFilter(self.request.GET, queryset=queryset)
return filtered.qs
def get_template_names(self):
if self.request.is_ajax():
return 'course/course_items.html'
return 'course/courses.html'