finish chapter 2

chap_2_blog_advanced/mysite/blog/migrations/0003_post_tags.py

@@ -0,0 +1,22 @@
+# -*- coding: utf-8 -*-
+# Generated by Django 1.9.2 on 2016-02-28 04:32
+from __future__ import unicode_literals
+
+from django.db import migrations
+import taggit.managers
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('taggit', '0002_auto_20150616_2121'),
+        ('blog', '0002_comment'),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name='post',
+            name='tags',
+            field=taggit.managers.TaggableManager(help_text='A comma-separated list of tags.', through='taggit.TaggedItem', to='taggit.Tag', verbose_name='Tags'),
+        ),
+    ]

chap_2_blog_advanced/mysite/blog/models.py

@@ -3,6 +3,9 @@
 from django.contrib.auth.models import User
 from django.core.urlresolvers import reverse
 
+#taggit
+from taggit.managers import TaggableManager
+
 
 # Create your models here.
 
@@ -25,9 +28,11 @@ class Post(models.Model):
     created = models.DateTimeField(auto_now_add=True)
     updated = models.DateTimeField(auto_now=True)
     status = models.CharField(max_length=10, choices=STATUS_CHOICES, default="draft")
+    tags = TaggableManager()
 
     objects = models.Manager()
     published = PublishedManager()
+    tags = TaggableManager()
 
 
     class Meta:

chap_2_blog_advanced/mysite/blog/templates/blog/post/detail.html

@@ -11,6 +11,13 @@ <h1>{{ post.title }}</h1>
       <a href="{% url 'blog:post_share' post.id %}">Share this post</a>
     </p>
 
+    <h2>Similar posts</h2>
+    {% for post in similar_posts %}
+        <p><a href="{{ post.get_absolute_url }}">{{ post.title }}</a></p>
+    {% empty %}
+        There are no similar posts yet.
+    {% endfor %}
+
     {% with comments.count as total_comments %}
         <h2>{{ total_comments }} comment{{ total_comments|pluralize }}</h2>
     {% endwith %}

chap_2_blog_advanced/mysite/blog/templates/blog/post/detail.html~

@@ -0,0 +1,50 @@
+{% extends "blog/base.html" %}
+
+{% block title %}{{ post.title }}{% endblock %}
+
+{% block content %}
+    <h1>{{ post.title }}</h1>
+    <p class="date">Published {{ post.publish }} by {{ post.author }}</p>
+    {{ post.body|linebreaks }}
+
+    <p>
+      <a href="{% url 'blog:post_share' post.id %}">Share this post</a>
+    </p>
+
+    <h2>Similar posts</h2>
+    {% for post in similar_posts %}
+        <p><a href="{{ post.get_absolute_url }}">{{ post.title }}</a></p>
+    {% empty %}
+        There are no similar posts yet.
+    {% endfor %}
+
+    {% with comments.count as total_comments %}
+        <h2>{{ total_comments }} comment{{ total_comments|pluralize }}</h2>
+    {% endwith %}
+
+    {% for comment in comments %}
+        <div class="comment">
+            <p class="info">Comment {{ forloop.counter }} by {{ comment.name }} {{ comment.created }}</p>
+            {{ comment.body|linebreaks }}
+        </div>
+    {% empty %}
+        <p>There are no comments yet.</p>
+    {% endfor %}
+
+    {% if new_comment %}
+        <h2>Your comment has been added.</h2>
+    {% else %}
+        <h2>Add a new comment</h2>
+        <form action="." method="post">
+            {{ comment_form.as_p }}
+            {% csrf_token %}
+            <p><input type="submit" value="Add comment"></p>
+        </form>
+    {%  endif %}
+
+
+
+
+{% endblock %}
+
+

chap_2_blog_advanced/mysite/blog/templates/blog/post/list.html

@@ -7,14 +7,28 @@
 
   <h1>My Blog</h1>
 
+  {% if tag %}
+    <h2>Posts tagged with "{{ tag.name }}"</h2>
+  {% endif %}
+
   {% for post in posts %}
     <h2>
       <a href="{{ post.get_absolute_url }}">{{ post.title }}</a>
     </h2>
+        <p class="tags">
+            Tags: 
+            {% for tag in post.tags.all %}
+                <a href="{% url "blog:post_list_by_tag" tag.slug %}">{{ tag.name }}</a>
+                {% if not forloop.last %}, {% endif %}
+            {% endfor %}
+        </p>
+
     <p class="date">
       Published {{ post.publish }} by {{ post.author }}
     </p>
     {{ post.body|truncatewords:30|linebreaks }}
+    <p class="tags">Tags: {{ post.tags.all|join:", " }}</p>
+
   {% endfor %}
 {% endblock %}
 

chap_2_blog_advanced/mysite/blog/urls.py

@@ -1,15 +1,14 @@
-from django.conf.urls import url, include
+from django.conf.urls import url
 from . import views
 
+
 urlpatterns = [
-  #url(r'^$', views.post_list, name='post_list'),
-  url(r'^$', views.PostListView.as_view(),
-      name='post_list'),
-  url(r'^(?P<year>\d{4})/(?P<month>\d{2})/(?P<day>\d{2})/(?P<post>[-\w]+)/$',     views.post_detail,
+    # post views
+    url(r'^$', views.post_list, name='post_list'),
+    url(r'^tag/(?P<tag_slug>[-\w]+)/$', views.post_list, name='post_list_by_tag'),
+    #url(r'^$', views.PostListView.as_view(), name='post_list'),
+    url(r'^(?P<year>\d{4})/(?P<month>\d{2})/(?P<day>\d{2})/(?P<post>[-\w]+)/$',
+        views.post_detail,
         name='post_detail'),
-  url(r'^(?P<post_id>\d+)/share/$',
-      views.post_share,
-      name='post_share'),
-
-
-        ]
+    url(r'^(?P<post_id>\d+)/share/$', views.post_share, name='post_share'),
+]

chap_2_blog_advanced/mysite/blog/urls.py~

@@ -0,0 +1,15 @@
+from django.conf.urls import url, include
+from . import views
+
+urlpatterns = [
+  #url(r'^$', views.post_list, name='post_list'),
+  #url(r'^$', views.PostListView.as_view(), name='post_list'),
+  url(r'^tag/(?P<tag_slug>[-\w]+)/$', views.post_list, name='post_list_by_tag'),
+  url(r'^(?P<year>\d{4})/(?P<month>\d{2})/(?P<day>\d{2})/(?P<post>[-\w]+)/$',     views.post_detail,
+        name='post_detail'),
+  url(r'^(?P<post_id>\d+)/share/$',
+      views.post_share,
+      name='post_share'),
+
+
+        ]

chap_2_blog_advanced/mysite/blog/views.py

@@ -4,13 +4,21 @@
 from .models import Post, Comment
 from .forms import EmailPostForm, CommentForm
 from django.core.mail import send_mail
+#Taggit
+from taggit.models import Tag
+from django.db.models import Count
 
-
-def post_list(request, category=None):
+def post_list(request, tag_slug=None):
     """
 
     """
     object_list = Post.published.all()
+    tag = None
+
+    if tag_slug:
+        tag = get_object_or_404(Tag, slug=tag_slug)
+        object_list = object_list.filter(tags__in=[tag])
+
     paginator = Paginator(object_list, 3) # 3 posts in each page
     page = request.GET.get('page')
     try:
@@ -22,7 +30,8 @@ def post_list(request, category=None):
         # If page is out of range deliver last page of results
         posts = paginator.page(paginator.num_pages)
     return render(request, 'blog/post/list.html', {'page': page,
-                                                   'posts': posts})
+                                                   'posts': posts,
+                                                   'tag':tag})
 
 
 class PostListView(ListView):
@@ -59,10 +68,17 @@ def post_detail(request, year, month, day, post):
             new_comment.save()
     else:
         comment_form = CommentForm()
-    return render(request, 'blog/post/detail.html', {
-            'post': post,
-            'comments': comments,
-            'comment_form': comment_form})
+
+    # List of similar posts
+    post_tags_ids = post.tags.values_list('id', flat=True)
+    similar_posts = Post.published.filter(tags__in=post_tags_ids).exclude(id=post.id)
+    similar_posts = similar_posts.annotate(same_tags=Count('tags')).order_by('-same_tags',
+                                                                             '-publish')[:4]
+    return  render(request, 'blog/post/detail.html', {'post': post,
+                                                     'comments': comments,
+                                                     'comment_form': comment_form,
+                                                     'similar_posts': similar_posts})
+
 
 
 

chap_2_blog_advanced/mysite/blog/views.py~

@@ -0,0 +1,102 @@
+from django.shortcuts import render, get_object_or_404
+from django.core.paginator import Paginator, EmptyPage, PageNotAnInteger
+from django.views.generic import ListView
+from .models import Post, Comment
+from .forms import EmailPostForm, CommentForm
+from django.core.mail import send_mail
+#Taggit
+from taggit.models import Tag
+from django.db.models import Count
+
+def post_list(request, tag_slug=None):
+    """
+
+    """
+    object_list = Post.published.all()
+    tag = None
+
+    if tag_slug:
+        tag = get_object_or_404(Tag, slug=tag_slug)
+        object_list = object_list.filter(tags__in=[tag])
+
+    paginator = Paginator(object_list, 3) # 3 posts in each page
+    page = request.GET.get('page')
+    try:
+        posts = paginator.page(page)
+    except PageNotAnInteger:
+        # If page is not an integer deliver the first page
+        posts = paginator.page(1)
+    except EmptyPage:
+        # If page is out of range deliver last page of results
+        posts = paginator.page(paginator.num_pages)
+    return render(request, 'blog/post/list.html', {'page': page,
+                                                   'posts': posts,
+                                                   'tag':tag})
+
+
+class PostListView(ListView):
+    """
+
+    """
+    queryset = Post.published.all()
+    context_object_name = 'posts'
+    paginate_by = 3
+    template_name = 'blog/post/list.html'
+
+
+def post_detail(request, year, month, day, post):
+    """
+
+    """
+    post = get_object_or_404(Post, slug=post,
+                                   status='published',
+                                   publish__year=year,
+                                   publish__month=month,
+                                   publish__day=day)
+    #list of active comments for this post
+    comments = post.comments.filter(active=True)
+
+    if request.method == 'POST':
+        #A comment was posted
+        comment_form = CommentForm(data=request.POST)
+        if comment_form.is_valid():
+            #Created Comment object but don't save to database yet
+            new_comment = comment_form.save(commit=False)
+            # Assign the current post to the comment
+            new_comment.post = post
+            # Save the comment to the database
+            new_comment.save()
+    else:
+        comment_form = CommentForm()
+    return render(request, 'blog/post/detail.html', {
+            'post': post,
+            'comments': comments,
+            'comment_form': comment_form})
+
+
+
+def post_share(request, post_id):
+    """
+
+    """
+    #Retrieve the post by id
+    post = get_object_or_404(Post, id=post_id, status='published')
+    sent = False
+
+    if request.method == 'POST':
+        #Form was submitted
+        form = EmailPostForm(request.POST)
+        if form.is_valid():
+            #Form fields passed validation
+            cd = form.cleaned_data
+            # .... send email
+            post_url = request.build_absolute_uri(post.get_absolute_url())
+            subject = '{} ({}) recommends you reading "{}"'.format(cd['name'], cd['email'], post.title)
+            message = 'Read "{}" at {}\n\n{}\'s comments: {}'.format(post.title, post_url, cd['name'], cd['comments'])
+            #send_mail(subject, message, '[email protected]', [cd['to']])
+            sent = True
+    else:
+        form = EmailPostForm()
+    return render(request, 'blog/post/share.html', {'post':post, 'form': form, 'sent': sent})
+
+

chap_2_blog_advanced/mysite/mysite/settings.py

@@ -36,6 +36,7 @@
     'django.contrib.staticfiles',
     #Third-Party
     'django_extensions',
+    'taggit',
     #Applications
     'blog',
 )