More code.

composer.json

@@ -17,6 +17,7 @@
         "vova07/yii2-imperavi-widget": "*",
         "yii2-extensions/asset-bootbox": "dev-main",
         "yii2-extensions/asset-bootstrap5": "dev-main",
+        "yii2-extensions/asset-fontawesome": "dev-main",
         "yii2-extensions/bootstrap5":"dev-main",
         "yii2-extensions/core-library": "dev-main",
         "yii2-extensions/datetime-picker": "dev-main",

config/extension.php

@@ -2,6 +2,16 @@
 
 declare(strict_types=1);
 
+use Yii\Blog\Domain\Category\Category;
+use Yii\Blog\Domain\Category\CategoryInterface;
+use Yii\Blog\Domain\Post\Post;
+use Yii\Blog\Domain\Post\PostInterface;
+use Yii\Blog\Domain\Seo\Seo;
+use Yii\Blog\Domain\Seo\SeoInterface;
+use Yii\Blog\Domain\Tag\Tag;
+use Yii\Blog\Domain\Tag\TagInterface;
+use Yii\Blog\Domain\Tag\TagItem;
+use Yii\Blog\Domain\Tag\TagItemInterface;
 use Yii\Blog\Framework\EventHandler\CategoryRegisterEventHandler;
 use yii\i18n\PhpMessageSource;
 
@@ -22,13 +32,25 @@
             'enablePrettyUrl' => true,
             'showScriptName' => false,
             'rules' => [
+                'blog/index/page/<page>/per-page/<per-page>' => 'blog/index',
                 'category/delete/<slug>' => 'category/delete',
                 'category/disable/<slug>' => 'category/disable',
                 'category/enable/<slug>' => 'category/enable',
                 'category/index/<slug>' => 'category/index',
                 'category/index/page/<page>/per-page/<per-page>' => 'category/index',
                 'category/update/<slug>' => 'category/update',
+                'post/create' => 'post/create',
+                'post/index/page/<page>/per-page/<per-page>' => 'post/index',
             ],
         ],
     ],
+    'container' => [
+        'definitions' => [
+            CategoryInterface::class => Category::class,
+            PostInterface::class => Post::class,
+            SeoInterface::class => Seo::class,
+            TagInterface::class => Tag::class,
+            TagItemInterface::class => TagItem::class,
+        ],
+    ]
 ];

config/params-web.php

@@ -2,6 +2,7 @@
 
 declare(strict_types=1);
 
+use Yii\Blog\UseCase\Blog\BlogController;
 use Yii\Blog\UseCase\Category\CategoryController;
 use Yii\Blog\UseCase\Post\PostController;
 use Yii\Blog\UseCase\Tag\TagController;
@@ -11,6 +12,9 @@
         'category' => [
             'class' => CategoryController::class,
         ],
+        'blog' => [
+            'class' => BlogController::class,
+        ],
         'post' => [
             'class' => PostController::class,
         ],

src/ActiveRecord/Category.php → src/Domain/Category/Category.php

@@ -2,13 +2,14 @@
 
 declare(strict_types=1);
 
-namespace Yii\Blog\ActiveRecord;
+namespace Yii\Blog\Domain\Category;
 
 use Yii2\Extensions\NestedSets\NestedSetsBehavior;
 use yii\behaviors\SluggableBehavior;
 use Yii\Blog\BlogModule;
+use Yii\Blog\Domain\Post\Post;
+use Yii\Blog\Domain\Seo\Seo;
 use Yii\Blog\Framework\Behavior\SortableBehavior;
-use Yii\Blog\Query\CategoryQuery;
 use yii\db\ActiveQuery;
 use yii\db\ActiveRecord;
 use Yiisoft\Strings\Inflector;
@@ -17,7 +18,7 @@
 use function preg_replace;
 use function strtolower;
 
-final class Category extends ActiveRecord
+final class Category extends ActiveRecord implements CategoryInterface
 {
     public function behaviors(): array
     {
@@ -26,7 +27,7 @@ public function behaviors(): array
                 'class' => NestedSetsBehavior::class,
                 'treeAttribute' => 'tree',
             ],
-            'sorteable' => SortableBehavior::class,
+            'sortable' => SortableBehavior::class,
             'slug' => [
                 'class' => SluggableBehavior::class,
                 'attribute' => 'title',
@@ -48,7 +49,7 @@ public function behaviors(): array
 
     public function getPost(): ActiveQuery
     {
-        return $this->hasMany(Post::class, ['category_id' => 'id'])->sortDate();
+        return $this->hasMany(Post::class, ['category_id' => 'id']);
     }
 
     public function getSeo(): ActiveQuery
@@ -58,13 +59,15 @@ public function getSeo(): ActiveQuery
 
     public function scenarios(): array
     {
-        return array_merge(
-            parent::scenarios(),
-            [
-                'register' => ['title', 'description', 'image_file', 'slug', 'status'],
-                'update' => ['title', 'description', 'image_file', 'slug', 'status'],
-            ],
-        );
+        $attributes = [
+            'title',
+            'description',
+            'image_file',
+            'slug',
+            'status',
+        ];
+
+        return array_merge(parent::scenarios(), ['register' => $attributes, 'update' => $attributes]);
     }
 
     public static function find(): CategoryQuery

src/Domain/Category/CategoryInterface.php

@@ -0,0 +1,40 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Yii\Blog\Domain\Category;
+
+use yii\db\ActiveQuery;
+use yii\db\ActiveRecordInterface;
+
+/**
+ * Defines the contract for the Category class.
+ *
+ * @property int $id The ID.
+ * @property string $title The title.
+ * @property string $description The description.
+ * @property string $image_file The image file.
+ * @property int $order_num The order number.
+ * @property string $slug The slug.
+ * @property int $tree The tree.
+ * @property int $lft The left.
+ * @property int $rgt The right.
+ * @property int $depth The depth.
+ * @property int $status The status.
+ */
+interface CategoryInterface extends ActiveRecordInterface
+{
+    /**
+     * Returns the relational query object for fetching posts related to this category.
+     *
+     * @return ActiveQuery The relational query object.
+     */
+    public function getPost(): ActiveQuery;
+
+    /**
+     * Returns the relational query object for fetching SEO-related information for this category.
+     *
+     * @return ActiveQuery The relational query object.
+     */
+    public function getSeo(): ActiveQuery;
+}

src/Query/CategoryQuery.php → src/Domain/Category/CategoryQuery.php

@@ -2,7 +2,7 @@
 
 declare(strict_types=1);
 
-namespace Yii\Blog\Query;
+namespace Yii\Blog\Domain\Category;
 
 use Yii2\Extensions\NestedSets\NestedSetsQueryBehavior;
 use yii\db\ActiveQuery;

src/ActiveRecord/Photos.php → src/Domain/Photos/Photos.php

@@ -2,7 +2,7 @@
 
 declare(strict_types=1);
 
-namespace Yii\Blog\ActiveRecord;
+namespace Yii\Blog\Domain\Photos;
 
 use yii\db\ActiveRecord;
 

src/ActiveRecord/Post.php → src/Domain/Post/Post.php

@@ -2,15 +2,22 @@
 
 declare(strict_types=1);
 
-namespace Yii\Blog\ActiveRecord;
+namespace Yii\Blog\Domain\Post;
 
 use yii\behaviors\SluggableBehavior;
 use Yii\Blog\BlogModule;
+use Yii\Blog\Domain\Category\Category;
+use Yii\Blog\Domain\Seo\Seo;
+use Yii\Blog\Framework\Behavior\Taggable;
 use yii\db\ActiveQuery;
 use yii\db\ActiveRecord;
 use Yiisoft\Strings\Inflector;
 
-final class Post extends ActiveRecord
+use function preg_match;
+use function preg_replace;
+use function strtolower;
+
+final class Post extends ActiveRecord implements PostInterface
 {
     public function behaviors(): array
     {
@@ -31,34 +38,33 @@ public function behaviors(): array
                     return $slug;
                 },
             ],
+            'taggable' => Taggable::class,
         ];
     }
 
     public function getCategory(): ActiveQuery
     {
-        return $this->hasOne(Category::class, ['id' => 'category_id'])->sort();
+        return $this->hasOne(Category::class, ['id' => 'category_id']);
     }
 
-    public function getPhotos(): ActiveQuery
+    public function getSeo(): ActiveQuery
     {
-        return $this->hasMany(Photos::class, ['item_id' => 'id'])->where(['class' => self::className()])->sort();
+        return $this->hasOne(Seo::class, ['item_id' => 'id'])->andWhere(['class' => self::class]);
     }
 
     public function scenarios(): array
     {
-        return array_merge(
-            parent::scenarios(),
-            [
-                'create' => [
-                    'category_id',
-                    'title',
-                    'content',
-                    'content_short',
-                    'date',
-                    'status',
-                ],
-            ],
-        );
+        $attributes = [
+            'category_id',
+            'title',
+            'content',
+            'content_short',
+            'date',
+            'status',
+            'tagNames',
+        ];
+
+        return array_merge(parent::scenarios(), ['create' => $attributes, 'update' => $attributes]);
     }
 
     public static function tableName(): string

src/Domain/Post/PostInterface.php

@@ -0,0 +1,44 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Yii\Blog\Domain\Post;
+
+use Yii\Blog\Domain\Tag\Tag;
+use yii\db\ActiveQuery;
+use yii\db\ActiveRecordInterface;
+
+/**
+ * Defines the contract for the Post class.
+ *
+ * @property int $id The ID.
+ * @property int $category_id The category ID.
+ * @property string $title The title.
+ * @property string $content The content.
+ * @property string $content_short The short content.
+ * @property string $image_file The image file.
+ * @property string $slug The slug.
+ * @property string $date The date.
+ * @property int $views The views.
+ * @property string $lang The language.
+ * @property int $status The status.
+ *
+ * Defined relations:
+ * @property Tag[] $tags The tags.
+ */
+interface PostInterface extends ActiveRecordInterface
+{
+    /**
+     * Returns the relational query object for fetching category-related information for this post.
+     *
+     * @return ActiveQuery The relational query object.
+     */
+    public function getCategory(): ActiveQuery;
+
+    /**
+     * Returns the relational query object for fetching SEO-related information for this post.
+     *
+     * @return ActiveQuery The relational query object.
+     */
+    public function getSeo(): ActiveQuery;
+}

src/ActiveRecord/Seo.php → src/Domain/Seo/Seo.php

@@ -2,11 +2,11 @@
 
 declare(strict_types=1);
 
-namespace Yii\Blog\ActiveRecord;
+namespace Yii\Blog\Domain\Seo;
 
 use yii\db\ActiveRecord;
 
-final class Seo extends ActiveRecord
+final class Seo extends ActiveRecord implements SeoInterface
 {
     public function safeAttributes(): array
     {

src/Domain/Seo/SeoInterface.php

@@ -0,0 +1,22 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Yii\Blog\Domain\Seo;
+
+use yii\db\ActiveRecordInterface;
+
+/**
+ * Defines the contract for the Seo class.
+ *
+ * @property int $id The ID.
+ * @property string $class The class name of the item.
+ * @property int $item_id The ID of the item.
+ * @property string $h1 The H1.
+ * @property string $title The title.
+ * @property string $keywords The keywords.
+ * @property string $description The description.
+ */
+interface SeoInterface extends ActiveRecordInterface
+{
+}

src/ActiveRecord/Tag.php → src/Domain/Tag/Tag.php

@@ -2,11 +2,11 @@
 
 declare(strict_types=1);
 
-namespace Yii\Blog\ActiveRecord;
+namespace Yii\Blog\Domain\Tag;
 
 use yii\db\ActiveRecord;
 
-final class Tag extends ActiveRecord
+final class Tag extends ActiveRecord implements TagInterface
 {
     public function safeAttributes(): array
     {

src/Domain/Tag/TagInterface.php

@@ -0,0 +1,18 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Yii\Blog\Domain\Tag;
+
+use yii\db\ActiveRecordInterface;
+
+/**
+ * Defines the contract for the Tag class.
+ *
+ * @property string $id The ID.
+ * @property string $name The name.
+ * @property int $frequency The frequency.
+ */
+interface TagInterface extends ActiveRecordInterface
+{
+}

src/ActiveRecord/TagItem.php → src/Domain/Tag/TagItem.php

@@ -2,11 +2,11 @@
 
 declare(strict_types=1);
 
-namespace Yii\Blog\ActiveRecord;
+namespace Yii\Blog\Domain\Tag;
 
 use yii\db\ActiveRecord;
 
-final class TagItem extends ActiveRecord
+final class TagItem extends ActiveRecord implements TagItemInterface
 {
     public static function tableName()
     {