lessn 50

.gitignore

 venv
 db.sqlite3
 .idea
-ap_12/db.sqlite3
\ No newline at end of file
+*/db.sqlite3
\ No newline at end of file

ap_12/static/css/styles.css

@@ -7,5 +7,4 @@ body {
 .container {
     margin: 0 auto;
     width: 80%;
-    text-align: center;
 }

ap_12/templates/articles/detail.html

@@ -7,6 +7,17 @@
     <p>{{ article.text }}</p>
     <p>By: {{ article.author }}</p>
 
+    <h2>Tags</h2>
+    <ul class="w-25">
+
+        {% for tag in article.tags.all %}
+
+            <li>{{ tag.name }}</li>
+
+        {% endfor %}
+
+    </ul>
+
     <a href="{% url 'articles_update' id=article.id %}" class="btn btn-primary">
         Update
     </a>

ap_12/templates/index.html

 {% extends 'base.html' %}
 
 {% block content %}
+    <div class="text-center">
         <h1>Articles</h1>
 
         <p><a href="{% url 'articles_add' %}">Добавить</a></p>
@@ -10,5 +11,7 @@
                 <a href="{% url 'articles_detail' id=article.id %}">Подробнее...</a>
                 <hr>
             {% endfor %}
+    </div>
+    
 
 {% endblock %}
\ No newline at end of file

ap_12/webapp/forms.py

 from django import forms
 from django.forms import widgets
 
+from webapp import models
+
 
 class ArticleForm(forms.Form):
     title = forms.CharField(max_length=200, required=True, label='Title')
@@ -9,3 +11,7 @@ class ArticleForm(forms.Form):
         max_length=3000, required=True, 
         label='Text', widget=widgets.Textarea,
     )
+    tags = forms.ModelMultipleChoiceField(
+        required=False, label='Tags', queryset=models.Tag.objects.all(),
+        widget=widgets.CheckboxSelectMultiple()
+    )

ap_12/webapp/migrations/0004_auto_20240125_1342.py

+# Generated by Django 3.2.19 on 2024-01-25 13:42
+
+from django.db import migrations, models
+import django.db.models.deletion
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('webapp', '0003_auto_20240122_1347'),
+    ]
+
+    operations = [
+        migrations.CreateModel(
+            name='Tag',
+            fields=[
+                ('id', models.BigAutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
+                ('name', models.CharField(max_length=30, verbose_name='Тег')),
+            ],
+        ),
+        migrations.CreateModel(
+            name='ArticleTag',
+            fields=[
+                ('id', models.BigAutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
+                ('created_at', models.DateTimeField(auto_now_add=True)),
+                ('article', models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, related_name='article_tags', to='webapp.article')),
+                ('tag', models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, related_name='tag_articles', to='webapp.tag')),
+            ],
+        ),
+        migrations.AddField(
+            model_name='article',
+            name='tags',
+            field=models.ManyToManyField(related_name='article', through='webapp.ArticleTag', to='webapp.Tag'),
+        ),
+    ]

ap_12/webapp/migrations/0005_alter_article_tags.py

+# Generated by Django 3.2.23 on 2024-01-25 13:48
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('webapp', '0004_auto_20240125_1342'),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name='article',
+            name='tags',
+            field=models.ManyToManyField(related_name='articles', through='webapp.ArticleTag', to='webapp.Tag'),
+        ),
+    ]

ap_12/webapp/migrations/0006_rename_tags_article_tags_old.py

+# Generated by Django 3.2.19 on 2024-01-25 14:02
+
+from django.db import migrations
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('webapp', '0005_alter_article_tags'),
+    ]
+
+    operations = [
+        migrations.RenameField(
+            model_name='article',
+            old_name='tags',
+            new_name='tags_old',
+        ),
+    ]

ap_12/webapp/migrations/0007_auto_20240125_1402.py

+# Generated by Django 3.2.19 on 2024-01-25 14:02
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('webapp', '0006_rename_tags_article_tags_old'),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name='article',
+            name='tags',
+            field=models.ManyToManyField(related_name='articles', to='webapp.Tag'),
+        ),
+        migrations.AlterField(
+            model_name='article',
+            name='tags_old',
+            field=models.ManyToManyField(related_name='articles_set', through='webapp.ArticleTag', to='webapp.Tag'),
+        ),
+    ]

ap_12/webapp/migrations/0008_auto_20240125_1404.py

+# Generated by Django 3.2.19 on 2024-01-25 14:04
+
+from django.db import migrations
+
+
+def transfer_tags(apps, schema_editor):
+    Article = apps.get_model('webapp.Article')
+    
+    for article in Article.objects.all():
+        article.tags.set(article.tags_old.all())
+
+
+def rollback_transfer(apps, schema_editor):
+    Article = apps.get_model('webapp.Article')
+    
+    for article in Article.objects.all():
+        article.tags_old.set(article.tags.all())
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('webapp', '0007_auto_20240125_1402'),
+    ]
+
+    operations = [
+        migrations.RunPython(transfer_tags, rollback_transfer)
+    ]

ap_12/webapp/models.py

@@ -15,6 +15,9 @@ class Article(models.Model):
     created_at = models.DateTimeField(auto_now_add=True, verbose_name='Дата создания')
     updated_at = models.DateTimeField(auto_now=True, verbose_name='Дата обновления')
     
+    tags_old = models.ManyToManyField('webapp.Tag', related_name='articles_set', through='webapp.ArticleTag')
+    tags = models.ManyToManyField('webapp.Tag', related_name='articles')
+
     class Meta:
         verbose_name = 'статья'
         verbose_name_plural = 'статьи'
@@ -37,3 +40,16 @@ class Comment(models.Model):
 
     def __str__(self):
         return self.text[:20]
+
+
+class Tag(models.Model):
+    name = models.CharField(max_length=30, verbose_name='Тег')
+
+    def __str__(self):
+        return self.name
+
+
+class ArticleTag(models.Model):
+    article = models.ForeignKey('webapp.Article', on_delete=models.CASCADE, related_name='article_tags')
+    tag = models.ForeignKey('webapp.Tag', on_delete=models.CASCADE, related_name='tag_articles')
+    created_at = models.DateTimeField(auto_now_add=True)

ap_12/webapp/views.py

@@ -34,15 +34,14 @@ def article_create_view(request):
         return render(request, 'articles/create.html', context={'form': form})
 
     elif request.method == 'POST':
-        print(request.POST)
         form = ArticleForm(data=request.POST)
 
         if form.is_valid():
-            article = Article.objects.create(
-                title=request.POST.get('title'),
-                text=request.POST.get('text'),
-                author=request.POST.get('author'),
-            )
+            tags = form.cleaned_data.pop('tags')
+
+            article = Article.objects.create(**form.cleaned_data)
+            article.tags.set(tags)
+
             return redirect('articles_detail', id=article.id)
     
         else:            
@@ -60,6 +59,7 @@ def article_update_view(request, id):
             'title': article.title,
             'text': article.text,
             'author': article.author,
+            'tags': article.tags.all(),
         })
 
         return render(
@@ -71,12 +71,16 @@ def article_update_view(request, id):
         form = ArticleForm(data=request.POST)
         
         if form.is_valid():
+            tags = form.cleaned_data.pop('tags')
+
             article.title = form.cleaned_data.get('title')
             article.author = form.cleaned_data.get('author')
             article.text = form.cleaned_data.get('text')
 
             article.save()
             
+            article.tags.set(tags)
+
             return redirect('index')
         else:
             return render(request, 'articles/update.html', context={'form': form, 'article': article})