Вебинар 37

article/migrations/0002_auto_20210623_1935.py

+# Generated by Django 3.2.4 on 2021-06-23 13:35
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('article', '0001_initial'),
+    ]
+
+    operations = [
+        migrations.AlterModelOptions(
+            name='article',
+            options={'verbose_name': 'Статья', 'verbose_name_plural': 'Статьи'},
+        ),
+        migrations.AddField(
+            model_name='article',
+            name='publication_date',
+            field=models.DateTimeField(null=True, verbose_name='Дата и время публикации'),
+        ),
+    ]

article/models.py

@@ -7,6 +7,7 @@ class Article(models.Model):
     author = models.CharField(max_length=100, null=False, blank=False, verbose_name='Автор')
     created_at = models.DateTimeField(auto_now_add=True, verbose_name="Дата и время создания")
     updated_at = models.DateTimeField(auto_now=True, verbose_name="Дата и время изменения")
+    publication_date = models.DateTimeField(verbose_name="Дата и время публикации", null=True, blank=False)
 
     def __str__(self):
         return f"{self.pk}. {self.title}"
@@ -14,3 +15,4 @@ class Article(models.Model):
     class Meta:
         verbose_name='Статья'
         verbose_name_plural='Статьи'
+

article/urls.py

 from django.urls import path
-from article.views import article_create_view, article_list_view
+from article.views import article_create_view, article_list_view, article_detail_view, article_update_view
 
 
 urlpatterns = [
     path('add/', article_create_view, name='add_article'),
-    path('list/', article_list_view, name='article_list')
+    path('list/', article_list_view, name='article_list'),
+    path('detail/<int:pk>', article_detail_view, name='article_detail'),
+    path('edit/<int:pk>', article_update_view, name='article_update'),
 ]
\ No newline at end of file

article/views.py

 from django.shortcuts import render
 from article.models import Article
+from django.shortcuts import redirect
+from django.http import HttpResponseNotFound
+from datetime import datetime
 
 
 def index_view(request):
@@ -10,20 +13,53 @@ def article_create_view(request):
     if request.method == 'GET':
         return render(request, 'article/create.html')
     elif request.method == 'POST':
+        publication_date = datetime.strptime(request.POST.get("publication_date"), "%Y-%m-%dT%H:%M")
+        now_time = datetime.now()
+        if publication_date < datetime.now():
+            return render(request, 'article/create.html', context={
+                "error_message": f"Дата публикации ({publication_date}) не должна быть раньше текущей {now_time}"})
         new_article = Article.objects.create(
             title=request.POST.get('title'),
             content=request.POST.get('content'),
-            author=request.POST.get('author')
+            author=request.POST.get('author'),
+            publication_date=publication_date
         )
         new_article.save()
-        articles_list = Article.objects.all()
-        return render(request, 'article/list.html', context={
-            'articles': articles_list
-        })
+        return redirect('article_detail', pk=new_article.pk)
+
+
+def article_detail_view(request, *args, **kwargs):
+    try:
+        article = Article.objects.get(pk=kwargs.get('pk'))
+    except Article.DoesNotExist as e:
+        return HttpResponseNotFound(f'Статья с id {kwargs.get("pk")} не найдена')
+    return render(request, 'article/detail.html', context={'article': article})
+
+
+def article_update_view(request, pk):
+    article = Article.objects.get(pk=pk)
+    if request.method == 'GET':
+        publication_date_format = article.publication_date
+        article.publication_date = publication_date_format.strftime('%Y-%m-%dT%H:%M')
+        return render(request, 'article/update.html', context={'article': article})
+    if request.method == 'POST':
+        publication_date = datetime.strptime(request.POST.get("publication_date"), "%Y-%m-%dT%H:%M")
+        now_time = datetime.now()
+        if publication_date < datetime.now():
+            return render(request, 'article/update.html', context={
+                "error_message": f"Дата публикации ({publication_date}) не должна быть раньше текущей {now_time}"})
+
+        article.title = request.POST.get('title'),
+        print(request.POST.get('title'))
+        article.content = request.POST.get('content'),
+        article.author = request.POST.get('author'),
+        article.publication_date = publication_date
+
+        article.save()
+        return redirect('article_detail', pk=article.pk)
 
 
 def article_list_view(request):
-    articles_list = Article.objects.all()
     return render(request, 'article/list.html', context={
-        'articles': articles_list
+        'articles': Article.objects.all()
     })

article_lesson/urls.py

@@ -19,6 +19,6 @@ from article.views import index_view
 
 urlpatterns = [
     path('admin/', admin.site.urls),
-    path('articles/', include('article.urls')),
-    path('', index_view)
+    path('aricles/', include('article.urls')),
+    path('', index_view, name='index_view')
 ]

templates/article/create.html

@@ -3,6 +3,11 @@
 {% block content %}
     <div class="row">
         <div class="col-md-6">
+            {% if error_message %}
+                <div class="alert alert-danger" role="alert">
+                  {{ error_message }}
+                </div>
+            {% endif %}
             <form action="{% url 'add_article' %}" method="post">
                 {% csrf_token %}
                 <div class="mb-3">
@@ -17,6 +22,10 @@
                   <label for="author_input" class="form-label">Author</label>
                   <input type="text" name="author" class="form-control" id="author_input" placeholder="Автор...">
                 </div>
+                <div class="mb-3">
+                    <label for="publication_date_input" class="form-label">Дата публикации</label>
+                    <input type="datetime-local" name="publication_date" class="form-control" id="publication_date_input" placeholder="Дата публикации...">
+                </div>
                 <button type="submit" class="btn btn-success">Create</button>
             </form>
         </div>

templates/article/detail.html

 {% extends 'base.html' %}
 
 {% block content %}
-    <h4>{{ message }}</h4>
     <div class="row">
         <div class="col-md-6">
             <h2>Статья</h2>
             <p>{{ article.title }}</p>
             <p>{{ article.author }}</p>
             <p>{{ article.content }}</p>
+            <a href="{% url 'article_update' article.pk %}" type="button" class="btn btn-warning">Редактировать статью</a>
         </div>
     </div>
 {% endblock %}
\ No newline at end of file

templates/article/list.html

@@ -3,11 +3,12 @@
 {% block content %}
 <div class="row">
     <div class="col-md-6">
-        <ul>
+        <div class="list-group">
             {% for article in articles %}
-                <li>{{ article }}</li>
+                  <a href="{% url 'article_detail' article.id %}" class="list-group-item list-group-item-action">{{ article }}</a>
             {% endfor %}
-        </ul>
+        </div>
     </div>
 </div>
+<a href="{% url 'add_article' %}" class="btn btn-info">Add New Article</a>
 {% endblock %}

templates/article/update.html

+{% extends 'base.html' %}
+
+{% block content %}
+    <div class="row">
+        <div class="col-md-6">
+            {% if error_message %}
+                <div class="alert alert-danger" role="alert">
+                  {{ error_message }}
+                </div>
+            {% endif %}
+            <form action="{% url 'article_update' article.pk %}" method="post">
+                {% csrf_token %}
+                <div class="mb-3">
+                  <label for="title_input" class="form-label">Title</label>
+                  <input type="text" name="title" class="form-control" id="title_input" value="{{ article.title }}" placeholder="Название...">
+                </div>
+                <div class="mb-3">
+                  <label for="content_input" class="form-label">Content</label>
+                  <textarea name="content" class="form-control" id="content_input" placeholder="Текст...">
+                      {{ article.content }}
+                  </textarea>
+                </div>
+                <div class="mb-3">
+                  <label for="author_input" class="form-label">Author</label>
+                  <input type="text" name="author" class="form-control" value="{{ article.author }}" id="author_input" placeholder="Автор...">
+                </div>
+                <div class="mb-3">
+                    <label for="publication_date_input" class="form-label">Дата публикации</label>
+                    <input type="datetime-local" name="publication_date" class="form-control" value="{{ article.publication_date }}" id="publication_date_input" placeholder="Дата публикации...">
+                </div>
+                <button type="submit" class="btn btn-success">Create</button>
+            </form>
+        </div>
+    </div>
+{% endblock %}
\ No newline at end of file

templates/base.html

@@ -13,23 +13,17 @@
 <body>
     <nav class="navbar navbar-expand-lg navbar-light bg-light">
       <div class="container-fluid">
-        <a class="navbar-brand" href="#">Navbar</a>
+        <a class="navbar-brand" href="{% url 'index_view' %}">My Blog</a>
         <button class="navbar-toggler" type="button" data-bs-toggle="collapse" data-bs-target="#navbarNav" aria-controls="navbarNav" aria-expanded="false" aria-label="Toggle navigation">
           <span class="navbar-toggler-icon"></span>
         </button>
         <div class="collapse navbar-collapse" id="navbarNav">
           <ul class="navbar-nav">
             <li class="nav-item">
-              <a class="nav-link active" aria-current="page" href="#">Home</a>
+              <a class="nav-link" href="{% url 'article_list' %}">Articles</a>
             </li>
             <li class="nav-item">
-              <a class="nav-link" href="#">Features</a>
-            </li>
-            <li class="nav-item">
-              <a class="nav-link" href="#">Pricing</a>
-            </li>
-            <li class="nav-item">
-              <a class="nav-link disabled" href="#" tabindex="-1" aria-disabled="true">Disabled</a>
+              <a class="nav-link" href="{% url 'add_article' %}">Add New Article</a>
             </li>
           </ul>
         </div>

templates/index.html

-<!doctype html>
-<html lang="en">
-<head>
-    <meta charset="UTF-8">
-    <meta name="viewport"
-          content="width=device-width, user-scalable=no, initial-scale=1.0, maximum-scale=1.0, minimum-scale=1.0">
-    <meta http-equiv="X-UA-Compatible" content="ie=edge">
-    <link href="https://cdn.jsdelivr.net/npm/bootstrap@5.0.1/dist/css/bootstrap.min.css" rel="stylesheet" integrity="sha384-+0n0xVW2eSR5OomGNYDnhzAbDsOXxcvSN1TPprVMTNDbiYZCxYbOOl7+AMvyTG2x" crossorigin="anonymous">
-    <title>Document</title>
-</head>
-<body>
-    <a href="{% url 'add_article' %}" class="btn btn-success">Add Article</a>
-</body>
-</html>
\ No newline at end of file
+{% extends 'base.html' %}
+{% block content %}
+    <h1>
+        Мой блог
+    </h1>
+    {% if False %}
+        а
+    {% elif False  %}
+        b
+    {% else %}
+        с
+    {% endif %}
+{% endblock %}
\ No newline at end of file