add the ability to update posts

Author: pavelprokhorenko

post/forms.py

@@ -3,9 +3,6 @@
 
 from django_summernote.fields import SummernoteTextFormField
 
-from imagekit.forms import ProcessedImageField
-from imagekit.processors import SmartResize
-
 from .models import Post
 from .validators import LetterUsernameValidator
 
@@ -127,3 +124,17 @@ class Meta:
         model = Post
         fields = ('title', 'description', 'image_thumbnail', 'content', 'tags')
 
+
+class EditPostForm(CreatePostForm):
+    """Форма для редактирования постов"""
+
+    def __init__(self, *args, **kwargs):
+        self.post = kwargs.pop('post', None)
+        super().__init__(*args, **kwargs)
+        self.fields['image_thumbnail'].required = False
+
+    def clean(self):
+        title = self.cleaned_data['title']
+        if Post.objects.filter(title=title).exists():
+            if Post.objects.get(title=title) != self.post:
+                raise forms.ValidationError('Пост с таким названием уже существует')

post/models.py

@@ -16,7 +16,7 @@ class Post(models.Model):
         format='JPEG',
         options={'quality': 60}
     )
-    slug = models.SlugField(unique=True)
+    slug = models.SlugField(unique=True, max_length=127)
     tags = models.ManyToManyField('Tag', verbose_name='Tags')
     author = models.ForeignKey('Profile', verbose_name='Автор', on_delete=models.PROTECT)
     pub_date = models.DateTimeField(auto_now_add=True)

post/templates/post/base.html

@@ -5,9 +5,7 @@
     {% load static %}
     <meta charset="utf-8">
     <meta name="viewport" content="width=device-width, initial-scale=1">
-    {% block description %}
-    <meta name="description" content="">
-    {% endblock %}
+    <meta name="description" content="{% block description %}{% endblock %}">
     <meta name="generator" content="Hugo 0.88.1">
     <link href="https://fonts.googleapis.com/css2?family=Roboto&display=swap" rel="stylesheet">
     <title>

post/templates/post/create_post.html

@@ -13,7 +13,7 @@
             <a class="ms-2 text-decoration-none">@{{ profile.user.username }}</a>
         </span>
         <hr>
-        <p class="text-secondary fs-5 text-center"><strong>Создание поста</strong></p>
+        <p class="text-secondary fs-5 text-center"><strong>Создать пост</strong></p>
         <hr>
         <div style="width: 900px">
             <form action="" enctype="multipart/form-data" method="post">
@@ -22,7 +22,7 @@
             <br>
             <br>
             <div class="d-grid gap-2 col-6 mx-auto">
-                <input type="submit" class="btn btn-success btn-lg" value="Опубликовать">
+                <input type="submit" class="btn btn-primary btn-lg" value="Опубликовать">
             </div>
         </form>
         </div>

post/templates/post/edit_post.html

@@ -0,0 +1,31 @@
+{% extends 'post/base.html' %}
+{% load crispy_forms_tags %}
+{% block title %}
+{{ profile.user.username }} | Ukiblog
+{% endblock %}
+{% block categories %}
+{% endblock %}
+{% block main %}
+<div class="card" style="width: 1000px; margin: 100px 500px 300px 450px; padding: 30px 30px">
+    <div class="card-body">
+        <span class="text-start fs-1">
+            <img src="{{ profile.avatar_thumbnail.url }}" alt="" width="100" height="100" class="rounded-circle me-2">
+            <a class="ms-2 text-decoration-none">@{{ profile.user.username }}</a>
+        </span>
+        <hr>
+        <p class="text-secondary fs-5 text-center"><strong>Редактировать пост</strong></p>
+        <hr>
+        <div style="width: 900px">
+            <form action="" enctype="multipart/form-data" method="post">
+            {% csrf_token %}
+            {{ form|crispy|safe}}
+            <br>
+            <br>
+            <div class="d-grid gap-2 col-6 mx-auto">
+                <input type="submit" class="btn btn-primary btn-lg" value="Редактировать">
+            </div>
+        </form>
+        </div>
+    </div>
+</div>
+{% endblock %}

post/templates/post/post_detail.html

@@ -1,12 +1,12 @@
 {% extends 'post/base.html' %}
 {% block title %}
-{{ post.title }}
+    {{ post.title }}
 {% endblock %}
 {% block description %}
-<meta name="description" content="{{ post.description_for_search_engines }}">
+    {{ post.description_for_search_engines }}
 {% endblock %}
 {% block main %}
-<main class="px-3 text-dark" style="margin-left: 450px; width: 900px;">
+    <main class="px-3 text-dark" style="margin-left: 450px; width: 900px;">
     <div class="card text-center">
         <div class="card-header">
             <a href="#" class="text-decoration-none text-dark" style="font-weight: 600">
@@ -15,26 +15,33 @@
             </a>
             <span class="text-muted">
                         {{ post.pub_date|date:"H:i d.m.Y" }}
-                    {% if post.pub_date != post.edit_date %}
+                {% if post.pub_date != post.edit_date %}
                     (ред.
                     {% if post.pub_date|date:"d.m.Y" == post.edit_date|date:"d.m.Y" %}
-                    в {{ post.edit_date|date:"H:i" }}
+                        в {{ post.edit_date|date:"H:i" }}
                     {% else %}
-                    {{ post.edit_date|date:"H:i d.m.Y" }}
+                        {{ post.edit_date|date:"H:i d.m.Y" }}
                     {% endif %}
                     )
-                    {% endif %}
+                {% endif %}
                     </span>
+            {% if post.author.user == user %}
+                <a href="{% url 'post:edit_post' slug=post.slug %}" class="text-decoration-none">
+                    <button type="button" class="btn btn-outline-primary btn-lg" style="margin-left: 200px">
+                        Редактировать
+                    </button>
+                </a>
+            {% endif %}
         </div>
         <div class="card-body">
             <h2 class="card-title text-dark">
                 {{ post.title }}
             </h2>
-            <img src="{{ post.image_thumbnail.url }}" width=600px style="margin: 15px 0;">
+            <img src="{{ post.image_thumbnail.url }}" width=600px style="margin: 15px 0;" alt="">
             <hr>
             <div class="text-start">
                 {% autoescape off %}
-                <p class="card-text">{{ post.content }}</p>
+                    <p class="card-text">{{ post.content }}</p>
                 {% endautoescape %}
             </div>
         </div>

post/templates/post/profile.html

@@ -5,7 +5,7 @@
 {% block categories %}
 {% endblock %}
 {% block main %}
-<div class="card" style="width: 800px; margin: 100px 600px 300px 500px; padding: 30px 30px">
+<div class="card" style="width: 800px; margin: 0 600px 300px 500px; padding: 30px 30px">
     <div class="card-body">
         <span class="text-start fs-1">
             <img src="{{ main_profile.avatar_thumbnail.url }}" alt="" width="100" height="100" class="rounded-circle me-2">

post/urls.py

@@ -11,6 +11,7 @@
     ProfileView,
     EditProfileView,
     CreatePostView,
+    EditPostView,
 )
 
 app_name = 'post'
@@ -24,4 +25,5 @@
     path('profile/<slug:slug>', ProfileView.as_view(), name='profile'),
     path('profile/<slug:slug>/edit', EditProfileView.as_view(), name='edit_profile'),
     path('create_post', CreatePostView.as_view(), name='create_post'),
+    path('edit_post/<slug:slug>', EditPostView.as_view(), name='edit_post'),
 ]

post/views.py

@@ -1,7 +1,8 @@
+from slugify import slugify
+
 from django.shortcuts import render, redirect
 from django.urls import reverse, reverse_lazy
 from django.utils import timezone
-from django.utils.text import slugify
 from django.views import View, generic
 from django.contrib.auth import login, authenticate
 from django.contrib.auth.models import AnonymousUser, User
@@ -10,7 +11,7 @@
 
 from .models import Post, Tag, Profile
 from .mixins import DefaultContextMixin
-from .forms import LoginForm, RegistrationForm, EditProfileForm, CreatePostForm
+from .forms import LoginForm, RegistrationForm, EditProfileForm, CreatePostForm, EditPostForm
 
 
 class BaseView(DefaultContextMixin, generic.ListView):
@@ -28,7 +29,9 @@ class PostDetailView(DefaultContextMixin, generic.DetailView):
     model = Post
 
     def get_context_data(self, **kwargs):
-        return super().get_context_data(self.request, **kwargs)
+        context = super().get_context_data(self.request, **kwargs)
+        context['user'] = self.request.user
+        return context
 
 
 class TagDetailView(DefaultContextMixin, generic.DetailView):
@@ -44,6 +47,7 @@ def get_context_data(self, **kwargs):
 
 class LoginView(View):
     """Авторизация"""
+
     def get(self, *args, **kwargs):
         form = LoginForm()
         context = {
@@ -72,6 +76,7 @@ def post(self, *args, **kwargs):
 
 class RegistrationView(View):
     """Регистрация"""
+
     def get(self, *args, **kwargs):
         form = RegistrationForm()
         context = {
@@ -122,6 +127,7 @@ def get_context_data(self, **kwargs):
 
 class EditProfileView(View):
     """Настройки профиля"""
+
     def get(self, *args, **kwargs):
         if isinstance(self.request.user, AnonymousUser):
             messages.warning(self.request, 'У вас недостаточно прав!')
@@ -168,7 +174,7 @@ def post(self, *args, **kwargs):
 
 
 class CreatePostView(DefaultContextMixin, generic.CreateView):
-    """Создание поста"""
+    """Создать пост"""
     model = Post
     form_class = CreatePostForm
     template_name = 'post/create_post.html'
@@ -177,7 +183,7 @@ def get(self, *args, **kwargs):
         if isinstance(self.request.user, AnonymousUser) or not Profile.objects.get(user=self.request.user).author:
             messages.warning(self.request, 'У вас недостаточно прав!')
             return redirect(reverse('post:base'))
-        super().get(*args, **kwargs)
+        return super().get(*args, **kwargs)
 
     def form_valid(self, form):
         post = Post.objects.create(
@@ -193,7 +199,53 @@ def form_valid(self, form):
             edit_date=timezone.now(),
         )
         post.tags.add(*form.cleaned_data['tags'])
+        messages.success(
+            self.request,
+            f'Ваш пост успешно создан с:\nАдминистрация проверит его и опубликует!'
+        )
         return redirect(reverse('post:profile', kwargs={'slug': slugify(self.request.user.username)}))
 
     def get_context_data(self, **kwargs):
         return super().get_context_data(self.request)
+
+
+class EditPostView(DefaultContextMixin, View):
+    """Редактировать пост"""
+
+    def get(self, *args, **kwargs):
+        if isinstance(self.request.user, AnonymousUser) or Post.objects.get(
+                slug=kwargs['slug']).author.user != self.request.user:
+            messages.warning(self.request, 'У вас недостаточно прав!')
+            return redirect(reverse('post:base'))
+        data = model_to_dict(Post.objects.get(slug=kwargs['slug']))
+        form = EditPostForm(initial=data)
+        context = {
+            'form': form,
+        }
+        context.update(self.get_context_data(self.request, **kwargs))
+        return render(self.request, 'post/edit_post.html', context)
+
+    def post(self, *args, **kwargs):
+        post = Post.objects.get(slug=kwargs['slug'])
+        form = EditPostForm(self.request.POST, self.request.FILES, post=post)
+        if form.is_valid():
+            post.title = form.cleaned_data['title']
+            post.slug = slugify(form.cleaned_data['title'])
+            post.content = form.cleaned_data['content']
+            post.description = form.cleaned_data['description']
+            post.description_for_search_engines = form.cleaned_data['description']
+            post.edit_date = timezone.now()
+            post.tags.add(*form.cleaned_data['tags'])
+            if form.cleaned_data['image_thumbnail']:
+                post.image_thumbnail = form.cleaned_data['image_thumbnail']
+            post.save()
+            messages.success(
+                self.request,
+                f'Ваш пост успешно обновлен с:\nАдминистрация проверит его и опубликует!'
+            )
+            return redirect(reverse('post:profile', kwargs={'slug': slugify(self.request.user.username)}))
+        context = {
+            'form': form,
+        }
+        context.update(self.get_context_data(self.request, **kwargs))
+        return render(self.request, 'post/edit_post.html', context)