Adiciona a aplicação do blog.

blog/admin.py

@@ -0,0 +1,3 @@
+from django.contrib import admin
+
+# Register your models here.

blog/apps.py

@@ -0,0 +1,6 @@
+from django.apps import AppConfig
+
+
+class BlogConfig(AppConfig):
+    default_auto_field = 'django.db.models.BigAutoField'
+    name = 'blog'

blog/migrations/0001_initial.py

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+# Generated by Django 3.2.12 on 2022-06-20 13:05
+
+from django.db import migrations, models
+import django.db.models.deletion
+import modelcluster.contrib.taggit
+import modelcluster.fields
+import wagtail.core.fields
+
+
+class Migration(migrations.Migration):
+
+    initial = True
+
+    dependencies = [
+        ('taggit', '0004_alter_taggeditem_content_type_alter_taggeditem_tag'),
+        ('wagtailimages', '0023_add_choose_permissions'),
+        ('wagtailcore', '0066_collection_management_permissions'),
+    ]
+
+    operations = [
+        migrations.CreateModel(
+            name='BlogIndexPage',
+            fields=[
+                ('page_ptr', models.OneToOneField(auto_created=True, on_delete=django.db.models.deletion.CASCADE, parent_link=True, primary_key=True, serialize=False, to='wagtailcore.page')),
+                ('intro', wagtail.core.fields.RichTextField(blank=True)),
+            ],
+            options={
+                'abstract': False,
+            },
+            bases=('wagtailcore.page',),
+        ),
+        migrations.CreateModel(
+            name='BlogPage',
+            fields=[
+                ('page_ptr', models.OneToOneField(auto_created=True, on_delete=django.db.models.deletion.CASCADE, parent_link=True, primary_key=True, serialize=False, to='wagtailcore.page')),
+                ('date', models.DateField(verbose_name='Post date')),
+                ('intro', models.CharField(max_length=250)),
+                ('body', wagtail.core.fields.RichTextField(blank=True)),
+            ],
+            options={
+                'abstract': False,
+            },
+            bases=('wagtailcore.page',),
+        ),
+        migrations.CreateModel(
+            name='BlogPageTag',
+            fields=[
+                ('id', models.BigAutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
+                ('content_object', modelcluster.fields.ParentalKey(on_delete=django.db.models.deletion.CASCADE, related_name='tagged_items', to='blog.blogpage')),
+                ('tag', models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, related_name='blog_blogpagetag_items', to='taggit.tag')),
+            ],
+            options={
+                'abstract': False,
+            },
+        ),
+        migrations.CreateModel(
+            name='BlogPageGalleryImage',
+            fields=[
+                ('id', models.BigAutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
+                ('sort_order', models.IntegerField(blank=True, editable=False, null=True)),
+                ('caption', models.CharField(blank=True, max_length=250)),
+                ('image', models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, related_name='+', to='wagtailimages.image')),
+                ('page', modelcluster.fields.ParentalKey(on_delete=django.db.models.deletion.CASCADE, related_name='gallery_images', to='blog.blogpage')),
+            ],
+            options={
+                'ordering': ['sort_order'],
+                'abstract': False,
+            },
+        ),
+        migrations.AddField(
+            model_name='blogpage',
+            name='tags',
+            field=modelcluster.contrib.taggit.ClusterTaggableManager(blank=True, help_text='A comma-separated list of tags.', through='blog.BlogPageTag', to='taggit.Tag', verbose_name='Tags'),
+        ),
+    ]

blog/models.py

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+from django.db import models
+from django.core.paginator import EmptyPage, PageNotAnInteger, Paginator
+from django.conf import settings
+
+from wagtail.core.models import Page, Orderable
+
+from wagtail.core.fields import RichTextField
+from wagtail.admin.edit_handlers import FieldPanel, InlinePanel, MultiFieldPanel
+
+from modelcluster.fields import ParentalKey
+from modelcluster.contrib.taggit import ClusterTaggableManager
+from taggit.models import TaggedItemBase
+
+from wagtail.images.edit_handlers import ImageChooserPanel
+from wagtail.search import index
+
+
+class BlogIndexPage(Page):
+    intro = RichTextField(blank=True)
+
+    def get_context(self, request):
+        context = super().get_context(request)
+        all_posts = self.get_children().live().order_by('-blogpage__date')
+        all_tags = set()
+
+        if request.GET.get('tag'):
+            all_posts = all_posts.filter(blogpage__tags__slug=request.GET.get('tag'))
+
+        for post in all_posts.exclude(blogpage__tags=None)[0:100]:
+            for tag in post.specific.tags.all():
+                all_tags.add(tag)
+
+        # Paginate all posts by 2 per page
+        paginator = Paginator(all_posts, settings.PAGINATION_PER_PAGE)
+        # import pdb; pdb.set_trace()
+        # Try to get the ?page=x value
+        page = request.GET.get("page")
+        try:
+            # If the page exists and the ?page=x is an int
+            posts = paginator.page(page)
+        except PageNotAnInteger:
+            # If the ?page=x is not an int; show the first page
+            posts = paginator.page(1)
+        except EmptyPage:
+            # If the ?page=x is out of range (too high most likely)
+            # Then return the last page
+            posts = paginator.page(paginator.num_pages)
+
+        context['posts'] = posts
+        context['tags'] = all_tags
+
+        return context
+
+    content_panels = Page.content_panels + [
+        FieldPanel('intro', classname="full")
+    ]
+
+
+class BlogPageTag(TaggedItemBase):
+    content_object = ParentalKey(
+        'BlogPage',
+        related_name='tagged_items',
+        on_delete=models.CASCADE
+    )
+
+
+class BlogPage(Page):
+    date = models.DateField("Post date")
+    intro = models.CharField(max_length=250)
+    body = RichTextField(blank=True)
+    tags = ClusterTaggableManager(through=BlogPageTag, blank=True)
+
+    def main_image(self):
+        gallery_item = self.gallery_images.first()
+        if gallery_item:
+            return gallery_item.image
+        else:
+            return None
+
+    search_fields = Page.search_fields + [
+        index.SearchField('intro'),
+        index.SearchField('body'),
+    ]
+
+    content_panels = Page.content_panels + [
+        MultiFieldPanel([
+            FieldPanel('date'),
+            FieldPanel('tags'),
+        ], heading="Blog information"),
+        FieldPanel('intro'),
+        FieldPanel('body'),
+        InlinePanel('gallery_images', label="Gallery images"),
+    ]
+
+
+class BlogPageGalleryImage(Orderable):
+    page = ParentalKey(BlogPage, on_delete=models.CASCADE, related_name='gallery_images')
+    image = models.ForeignKey(
+        'wagtailimages.Image', on_delete=models.CASCADE, related_name='+'
+    )
+    caption = models.CharField(blank=True, max_length=250)
+
+    panels = [
+        ImageChooserPanel('image'),
+        FieldPanel('caption'),
+    ]

blog/tests.py

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+from django.test import TestCase
+
+# Create your tests here.

blog/views.py

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+from django.shortcuts import render
+
+# Create your views here.

config/settings/base.py

@@ -103,6 +103,7 @@
     "wagtailcaptcha",
     "wagtailmenus",
     "rest_framework",
+    "blog",
 ]
 
 LOCAL_APPS = [