Changes for Lab 3 and Final Project

Lab 3
- changed views to class based views
- added get_absolute_url() and get_author_name() functions to Post in models.py
- added classes for ListView and DetailView for Post
- adjusted URLs for the pages
- added HTML templates in templates/forum/

Final Project
- added addPost() function in views.py
- added new forms.py file
- added new URL for addPost() page
- added post_form.html to templates

widget_group3/forum/forms.py

+from django.forms import ModelForm
+from .models import Post
+
+class PostForm(ModelForm):
+    class Meta:
+        model = Post
+        fields = ['post_title', 'post_body', 'author'] # Selected fields for the form
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widget_group3/forum/models.py

 from django.db import models
 from django.urls import reverse
-from django.core.validators import RegexValidator
 
 # Using WidgetUser from homepage
 from homepage.models import WidgetUser
 
 class Post(models.Model):
-    post_title = models.CharField(max_length=50)
-    post_body = models.CharField(max_length=100)
+    post_title = models.CharField('Title', max_length=100)
+    post_body = models.CharField('Body', max_length=1000)
     pub_date = models.DateTimeField(auto_now_add=True, editable=False)
     author = models.ForeignKey(WidgetUser, on_delete=models.CASCADE)
-    # author_name = WidgetUser.objects.get(fk=author).full_name()
+    
+    # Takes URL to ForumDetailView
+    def get_absolute_url(self):
+        return reverse('Details', args=[(self.pk)])
 
-    def __str__(self):
-        return '{} by {} dated {}:\n {}'.format(self.post_title, self.author.full_name(), self.pub_date, self.post_body)
+    def get_author_name(self):
+        return str(self.author.first_name + " " + self.author.last_name)
 
-    def get_absolute_url(self):
-        return reverse('forum', args=[(self.post_title)])
+    author_name = get_author_name
 
 class Reply(models.Model):
-    reply_body = models.CharField(max_length=100)
+    reply_body = models.CharField(max_length=500)
     pub_date = models.DateTimeField(auto_now_add=True, editable=False)
     author = models.ForeignKey(WidgetUser, on_delete=models.CASCADE)
-    replied_post = models.ForeignKey(Post, on_delete=models.CASCADE)
+    replied_post = models.ForeignKey(Post, related_name = 'replies', on_delete=models.CASCADE)
+
+    def get_author_name(self):
+        return str(self.author.first_name + " " + self.author.last_name)
 
-    def __str__(self):
-        return '\nReply by {} dated {}:\n {}'.format(self.author.full_name(), self.pub_date, self.reply_body)
+    author_name = get_author_name
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widget_group3/forum/templates/forum/post_detail.html

+{% block content %}
+    <h3>{{post.post_title}}</h3>
+    <p>by {{post.author_name}}, {{post.pub_date|date:"d/m/Y"}}<p>
+    {{post.post_body}}
+    <ul>
+        {% for reply in post.replies.all %}
+            <li>
+               {{reply.author_name}}, {{reply.pub_date|date:"d/m/Y"}}:<br>
+               {{reply.reply_body}}
+            </li>
+        {% endfor %}
+    </ul>
+    <a href="{% url 'Forum' %}">Back to Forum</a>
+{% endblock %}
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widget_group3/forum/templates/forum/post_form.html

+{% block content %}
+    <h3>New Forum Post</h3>
+    <form action="{% url 'Add' %}" method="POST">
+        {% csrf_token %}
+        {{ form.as_p }}
+        <input type="submit" value="Save Post">
+    </form>
+    <a href="{% url 'Forum' %}">Back to Forum</a>
+{% endblock %}
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widget_group3/forum/templates/forum/post_list.html

+{% block content %}
+    {% block title %}Welcome to Widget’s Forum!{% endblock %}
+    <p>Forum posts:</p>
+    {% if post_list %}
+        <ul>
+            {% for post in post_list %}
+                <li>
+                    <a href="{{ post.get_absolute_url }}">{{ post.post_title }}</a> by {{post.author_name}} dated {{post.pub_date|date:"d/m/Y"}}<br>
+                </li>
+            {% endfor %}
+        </ul>
+    {% else %}
+        <p>There are no posts.</p>
+    {% endif %}
+    <p><a href="{% url 'Add' %}">New Forum Post</a></p>
+{% endblock %}
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widget_group3/forum/urls.py

 from django.urls import path
-from .views import forum
+from . import views
+from .views import ForumListView, ForumDetailView
 
 urlpatterns = [
-    path('', forum, name='forum')
+    path('', ForumListView.as_view(), name='Forum'),
+    path('<int:pk>/details/', ForumDetailView.as_view(), name='Details'),
+    path('add/', views.addPost, name='Add'),
 ]
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widget_group3/forum/views.py

-from django.http import HttpResponse
-from .models import Post, Reply
+from django.views.generic import ListView, DetailView
+from django.shortcuts import render, redirect
+from django.db import models
+from .models import Post
+from .forms import PostForm
 
-def forum(request):
-    post = Post.objects.all()
-    reply = Reply.objects.all()
-    output = "FORUM POSTS: \n" + "\n".join([str(x) for x in post]) + "\n".join([str(z) for z in reply])
-    return HttpResponse(output, content_type="text/plain")
+class ForumListView(ListView):
+    queryset = Post.objects.order_by('-pub_date') # Orders publication by most recent
+    context_object_name  = "post_list"
+    template_name = "post_list.html"
+
+class ForumDetailView(DetailView):
+    model = Post
+    template_name = "forum/post_detail.html"
+
+def addPost(request):
+    form = PostForm()
+    if request.method == 'POST':
+        form = PostForm(request.POST)
+        if form.is_valid():
+            form.pub_date = models.DateTimeField(auto_now_add=True, editable=False) # Sets current time as pub_date
+            new_post = form.save() # Creates new post
+            return redirect('Details', pk=new_post.pk) # Redirects to detailed view of new post
+    else:
+        form = PostForm() 
+    context = {'form':form}
+    return render(request,'forum/post_form.html', context) # Takes post_form template and displays form and post button
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