New updates by Chapter 2.

1.First I created search form and search view for searching posts.Also I created searchvertor from postgres by searching blog and body.
2.I define searchrank in view.It allow users that when them search any post they will see the results by relevancy.
3.I define config parametr in searchview.It do possible for us emove stop words in any language or ect.
4.Also searchview provide us to give weith by field.SearchVector() has a default weights are D, C, B, and A, and they refer to the numbers 0.1, 0.2, 0.4, and 1.0,
respectively.Also we can define with for search rank to title and body.
5.Also we can use trigram similarity.Trigram similarity
provide users when they type different words what is matches 2 letter by our post titles,they can see that post.

Author: rovsen762

project/apps/blog/feeds.py

@@ -0,0 +1,21 @@
+import markdown
+from django.contrib.syndication.views import Feed
+from django.template.defaultfilters import truncatewords_html
+from django.urls import reverse_lazy
+from .models import Post
+class LatestPostsFeed(Feed):
+    title = 'My blog'
+    link = reverse_lazy('blog:post_list')
+    description = 'New posts of my blog.'
+
+    def items(self):
+        return Post.published.all()[:5]
+
+    def item_title(self, item):
+        return item.title
+
+    def item_description(self, item):
+        return truncatewords_html(markdown.markdown(item.body), 30)
+
+    def item_pubdate(self, item):
+        return item.publish

project/apps/blog/forms.py

@@ -10,4 +10,7 @@ class EmailPostForm(forms.Form):
 class CommentForm(forms.ModelForm):
     class Meta:
         model = Comment
-        fields = ['name', 'email', 'body']
+        fields = ['name', 'email', 'body']
+
+class SearchForm(forms.Form):
+    query = forms.CharField()

project/apps/blog/migrations/0006_alter_post_author.py

@@ -0,0 +1,21 @@
+# Generated by Django 4.1.7 on 2023-03-23 12:13
+
+from django.conf import settings
+from django.db import migrations, models
+import django.db.models.deletion
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        migrations.swappable_dependency(settings.AUTH_USER_MODEL),
+        ('blog', '0005_alter_comment_options_and_more'),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name='post',
+            name='author',
+            field=models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, related_name='blog_post', to=settings.AUTH_USER_MODEL),
+        ),
+    ]

project/apps/blog/models.py

@@ -17,7 +17,7 @@ class Status(models.TextChoices):
 
     title = models.CharField(max_length=250)
     slug = models.SlugField(max_length=250,unique_for_date='publish')
-    author = models.ForeignKey(User,on_delete=models.CASCADE,related_name='blog_posts')
+    author = models.ForeignKey(User,on_delete=models.CASCADE,related_name='blog_post')
     body = models.TextField()
     publish = models.DateTimeField(default=timezone.now)
     status = models.CharField(max_length=2,choices=Status.choices,default=Status.DRAFT)
@@ -41,6 +41,9 @@ def get_absolute_url(self):
                            self.publish.day,
                            self.slug])
 
+
+
+
 class Comment(models.Model):
     post = models.ForeignKey(Post,
                              on_delete=models.CASCADE,

project/apps/blog/sitemaps.py

@@ -1,5 +1,6 @@
 from django.contrib.sitemaps import Sitemap
 from .models import Post
+
 class PostSitemap(Sitemap):
     changefreq = 'weekly'
     priority = 0.9

project/apps/blog/urls.py

@@ -1,10 +1,14 @@
 from django.urls import path
 from . import views
+from .feeds import LatestPostsFeed
 app_name = 'blog'
+
 urlpatterns = [
     path('', views.post_list, name='post_list'),
     path('tag/<slug:tag_slug>/',views.post_list, name='post_list_by_tag'),
     path('<int:year>/<int:month>/<int:day>/<slug:post>/', views.post_detail, name='post_detail'),
     path('<int:post_id>/share/',views.post_share, name='post_share'),
     path('<int:post_id>/comment/',views.post_comment, name='post_comment'),
+    path('feed/', LatestPostsFeed(), name='post_feed'),
+    path('search/', views.post_search, name='post_search'),
 ]

project/apps/blog/views.py

@@ -1,30 +1,39 @@
 from django.shortcuts import render
-from .models import Post,Comment
+from .models import Post, Comment
 from django.http import Http404
 from django.shortcuts import render, get_object_or_404
-from django.core.paginator import Paginator,EmptyPage,PageNotAnInteger
+from django.core.paginator import Paginator, EmptyPage, PageNotAnInteger
 from django.views.generic import ListView
-from .forms import EmailPostForm , CommentForm
+from .forms import EmailPostForm, CommentForm , SearchForm
 from django.core.mail import send_mail
 from django.views.decorators.http import require_POST
 from taggit.models import Tag
+from django.contrib.postgres.search import SearchVector,SearchQuery, SearchRank
 from django.db.models import Count
+from django.contrib.postgres.search import TrigramSimilarity
+
 def post_list(request, tag_slug=None):
     post_list = Post.published.all()
     tag = None
     if tag_slug:
         tag = get_object_or_404(Tag, slug=tag_slug)
         post_list = post_list.filter(tags__in=[tag])
+
     paginator = Paginator(post_list, 3)
     page_number = request.GET.get('page', 1)
+
     try:
         posts = paginator.page(page_number)
+
     except PageNotAnInteger:
         posts = paginator.page(1)
+
     except EmptyPage:
-    # If page_number is out of range deliver last page of results
+        # If page_number is out of range deliver last page of results
         posts = paginator.page(paginator.num_pages)
-    return render(request,'list.html',{'posts': posts,'tag': tag})
+
+    return render(request, 'list.html', {'posts': posts, 'tag': tag})
+
 
 def post_detail(request, year, month, day, post):
     post = get_object_or_404(Post,
@@ -37,13 +46,14 @@ def post_detail(request, year, month, day, post):
     comments = post.comments.filter(active=True)
     # Form for users to comment
     form = CommentForm()
-    return render(request,'detail.html',{'post': post,'comments': comments,'form': form})
+    return render(request, 'detail.html', {'post': post, 'comments': comments, 'form': form})
+
 
 def post_share(request, post_id):
     post = get_object_or_404(Post, id=post_id, status=Post.Status.PUBLISHED)
     sent = False
     if request.method == 'POST':
-    # Form was submitted
+        # Form was submitted
         form = EmailPostForm(request.POST)
         if form.is_valid():
             cd = form.cleaned_data
@@ -57,12 +67,14 @@ def post_share(request, post_id):
             sent = True
     else:
         form = EmailPostForm()
-    return render(request, 'share.html', {'post': post,'form': form,'sent': sent})
+    return render(request, 'share.html', {'post': post, 'form': form, 'sent': sent})
+
 
 @require_POST
 def post_comment(request, post_id):
     post = get_object_or_404(Post, id=post_id, status=Post.Status.PUBLISHED)
     comment = None
+    print(request.POST)
     form = CommentForm(data=request.POST)
     if form.is_valid():
         # Create a Comment object without saving it to the database
@@ -71,4 +83,17 @@ def post_comment(request, post_id):
         comment.post = post
         # Save the comment to the database
         comment.save()
-    return render(request, 'comment.html',{'post': post,'form': form,'comment': comment})
+    return render(request, 'comment.html', {'post': post, 'form': form, 'comment': comment})
+
+def post_search(request):
+    form = SearchForm()
+    query = None
+    results = []
+    if 'query' in request.GET:
+        form = SearchForm(request.GET)
+        if form.is_valid():
+            query = form.cleaned_data['query']
+            results = Post.published.annotate(
+                similarity=TrigramSimilarity('title', query),
+            ).filter(similarity__gt=0.1).order_by('-similarity')
+    return render(request,'search.html',{'form': form,'query': query,'results': results})

project/config/settings.py

@@ -1,4 +1,4 @@
-"""
+""""
 Django settings for config project.
 
 Generated by 'django-admin startproject' using Django 4.1.7.
@@ -15,7 +15,6 @@
 # Build paths inside the project like this: BASE_DIR / 'subdir'.
 BASE_DIR = Path(__file__).resolve().parent.parent
 
-
 # Quick-start development settings - unsuitable for production
 # See https://docs.djangoproject.com/en/4.1/howto/deployment/checklist/
 
@@ -42,14 +41,14 @@
     'django.contrib.staticfiles',
     'django.contrib.sites',
     'django.contrib.sitemaps',
+    'django.contrib.postgres',
     # Local apps:
     'apps.blog',
 
     # 3-rd party apps:
     'django_extensions',
     'taggit',
 
-
 ]
 
 MIDDLEWARE = [
@@ -82,16 +81,25 @@
 
 WSGI_APPLICATION = 'config.wsgi.application'
 
-
 # Database
 # https://docs.djangoproject.com/en/4.1/ref/settings/#databases
 
 DATABASES = {
     'default': {
-        'ENGINE': 'django.db.backends.sqlite3',
-        'NAME': BASE_DIR / 'db.sqlite3',
+        'ENGINE': 'django.db.backends.postgresql_psycopg2',
+        'NAME': 'blog',
+        'USER': 'blog',
+        'PASSWORD': 'blog',
+        'HOST': 'localhost',
+        'PORT': 5432,
     }
 }
+# DATABASES = {
+#     'default': {
+#         'ENGINE': 'django.db.backends.sqlite3',
+#         'NAME': BASE_DIR / 'db.sqlite3',
+#     }
+# }
 
 
 # Password validation
@@ -112,7 +120,6 @@
     },
 ]
 
-
 # Internationalization
 # https://docs.djangoproject.com/en/4.1/topics/i18n/
 
@@ -124,12 +131,11 @@
 
 USE_TZ = True
 
-
 # Static files (CSS, JavaScript, Images)
 # https://docs.djangoproject.com/en/4.1/howto/static-files/
 
 STATIC_URL = 'static/'
-STATICFILES_DIRS = [os.path.join(BASE_DIR , 'static')]
+STATICFILES_DIRS = [os.path.join(BASE_DIR, 'static')]
 
 EMAIL_HOST = 'smtp.gmail.com'
 EMAIL_HOST_USER = 'djangoapp762@gmail.com'