Added voting.

backend/postings/api/views.py

@@ -2,6 +2,7 @@ from rest_framework import generics, mixins
 from postings.models import *
 from .serializers import *
 from django.db.models import Q
+from django.http import *
 
 
 # The view for listing all generic Review objects.
@@ -14,13 +15,6 @@ class ReviewView(generics.RetrieveUpdateDestroyAPIView):
 	queryset = Review.objects.all()
 	serializer_class = ReviewSerializer
 
-class ReviewHelpfulVote(mixins.CreateModelMixin):
-	lookup_field = 'pk'
-	serializer_class = ReviewHelpfulVoteSerializer
-
-	def post(self, request, *args, **kwargs):
-		return self.create(request, *args, **kwargs)
-
 def review_helpful_vote(request, review_id):
 	if request.method == 'POST':
 		helpful = request.POST.get('helpful')
@@ -38,4 +32,6 @@ def review_helpful_vote(request, review_id):
 			helpful=helpful
 		)
 
+		return HttpResponse(status=201)
+
 	return HttpResponseBadRequest("Bad Request")

backend/postings/migrations/0004_remove_reviewhelpfulvote_user.py

@@ -0,0 +1,17 @@
+# Generated by Django 2.1.1 on 2018-10-11 09:27
+
+from django.db import migrations
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('postings', '0003_auto_20181002_1355'),
+    ]
+
+    operations = [
+        migrations.RemoveField(
+            model_name='reviewhelpfulvote',
+            name='user',
+        ),
+    ]

backend/postings/models.py

@@ -62,12 +62,14 @@ class Review(models.Model):
 	author = models.ForeignKey('postings.User', on_delete=models.PROTECT, null=True, blank=True)
 
 	# Gets the total number of votes which marked this review as 'helpful'.
-	def getHelpfulVoteCount(self):
-		return ReviewHelpfulVote.objects.filter(pk=self.pk, helpful=True).count()
+	@property
+	def helpful_vote_count(self):
+		return ReviewHelpfulVote.objects.filter(review=self.pk, helpful=True).count()
 
 	# Gets the total number of votes which marked this review as 'unhelpful'.
-	def getUnhelpfulVoteCount(self):
-		return ReviewHelpfulVote.objects.filter(pk=self.pk, helpful=False).count()
+	@property
+	def unhelpful_vote_count(self):
+		return ReviewHelpfulVote.objects.filter(review=self.pk, helpful=False).count()
 
 # A vote for a review as either positive or negative.
 class ReviewHelpfulVote(models.Model):
@@ -75,8 +77,6 @@ class ReviewHelpfulVote(models.Model):
 	review = models.ForeignKey('postings.Review', on_delete=models.CASCADE)
 	# Whether or not the referenced review was helpful.
 	helpful = models.BooleanField()
-	# The user who made this vote.
-	user = models.ForeignKey('postings.User', on_delete=models.CASCADE)
 
 # A RateableEntity for universities.
 class University(RateableEntity):

backend/postings/static/postings/js/voting.js

@@ -33,6 +33,27 @@
 // 	});
 // });
 
+// Sends either an up- or down-vote for a particular review.
+function sendVote (event, is_helpful) {
+	var csrf_token = $('#csrf-token input').val();
+	var review_id = $(event.target).closest('.js_votes').data('review_id');
+	var data = {
+		'csrfmiddlewaretoken': csrf_token,
+		'helpful': is_helpful
+	};
+	$.post(
+		'/api/postings/reviews/' + review_id + '/helpful_vote/',
+		data,
+	)
+		.done(function (response) {
+			console.log(response);
+		})
+		.fail(function (response) {
+			console.log(response);
+		});
+}
+
+// Registers all events to the document.
 function registerEvents () {
 	$(document.body)
 	.off('click.js_vote_up')
@@ -41,6 +62,7 @@ function registerEvents () {
 		function (event) {
 			event.preventDefault();
 			console.log("updoot");
+			sendVote(event, true);
 		});
 
 	$(document.body)
@@ -50,6 +72,7 @@ function registerEvents () {
 			function (event) {
 				event.preventDefault();
 				console.log("downdoot");
+				sendVote(event, false);
 			});
 }
 

backend/postings/templates/postings/frontend/review.html

@@ -19,14 +19,14 @@
         <div class="review-block-title">{{ review.title }}</div>
         <div class="review-block-description">{{ review.content }}</div>
 
-        <div id="review-votes-{{ review.pk }}">
+        <div id="review-votes-{{ review.pk }}" class="js_votes" data-review_id="{{ review.pk }}">
             <div class="review-vote-buttons">
                 Was this review helpful?
-                <a data-review-id="{{ review.pk }}" class="btn btn-light btn-sm js_vote_up"><span class="glyphicon glyphicon-thumbs-up"></span> Yes</a>
-                <a data-review-id="{{ review.pk }}" class="btn btn-light btn-sm js_vote_down"><span class="glyphicon glyphicon-thumbs-down"></span> No</a>
+                <a class="btn btn-light btn-sm js_vote_up"><span class="glyphicon glyphicon-thumbs-up"></span> Yes</a>
+                <a class="btn btn-light btn-sm js_vote_down"><span class="glyphicon glyphicon-thumbs-down"></span> No</a>
             </div>
-            <span title="{{ review.getHelpfulVoteCount }} people found this review helpful"><span class="votes-helpful">{{ review.getHelpfulVoteCount }}</span> <span class="glyphicon glyphicon-thumbs-up"></span></span> /
-            <span title="{{ review.getUnhelpfulVoteCount }} people found this review unhelpful"><span class="votes-unhelpful">{{ review.getUnhelpfulVoteCount }}</span> <span class="glyphicon glyphicon-thumbs-down"></span></span>
+            <span title="{{ review.getHelpfulVoteCount }} people found this review helpful"><span class="votes-helpful">{{ review.helpful_vote_count }}</span> <span class="glyphicon glyphicon-thumbs-up"></span></span> /
+            <span title="{{ review.getUnhelpfulVoteCount }} people found this review unhelpful"><span class="votes-unhelpful">{{ review.unhelpful_vote_count }}</span> <span class="glyphicon glyphicon-thumbs-down"></span></span>
         </div>
     </div>
 </div>