diff --git a/common/config/.gitignore b/common/config/.gitignore
new file mode 100644
index 0000000..22258e4
--- /dev/null
+++ b/common/config/.gitignore
@@ -0,0 +1 @@
+main-local.php
\ No newline at end of file
diff --git a/common/models/Media.php b/common/models/Media.php
new file mode 100644
index 0000000..6860c0d
--- /dev/null
+++ b/common/models/Media.php
@@ -0,0 +1,124 @@
+<?php
+
+namespace common\models;
+
+use common\modules\blog\models\Article;
+use common\modules\blog\models\ArticleCategoryMedia;
+use common\modules\blog\models\ArticleMedia;
+use Yii;
+use yii\db\ActiveRecord;
+use yii\web\UploadedFile;
+
+/**
+ * This is the model class for table "media".
+ *
+ * @property integer $id
+ * @property string $hash
+ *
+ * @property ArticleCategoryMedia[] $articleCategoryMedia
+ * @property ArticleMedia[] $articleMedia
+ */
+class Media extends ActiveRecord
+{
+    /**
+     * @var UploadedFile[];
+     */
+    public $imageFile;
+
+    /**
+     * @inheritdoc
+     */
+    public static function tableName()
+    {
+        return 'media';
+    }
+
+    /**
+     * @inheritdoc
+     */
+    public function rules()
+    {
+        return [
+            [['id'], 'integer'],
+            [['hash'], 'string'],
+            [['imageFile'], 'file', 'extensions' => 'png, gif, jpeg, jpg', 'skipOnEmpty' => true],
+        ];
+    }
+
+    /**
+     * @inheritdoc
+     */
+    public function attributeLabels()
+    {
+        return [
+            'id' => Yii::t('app', 'ID'),
+            'hash' => Yii::t('app', 'Hash'),
+        ];
+    }
+
+    /**
+     * @return \yii\db\ActiveQuery
+     */
+    public function getArticleCategoryMedia()
+    {
+        return $this->hasMany(ArticleCategoryMedia::className(), ['media_id' => 'id']);
+    }
+
+    /**
+     * @return \yii\db\ActiveQuery
+     */
+    public function getArticleMedia()
+    {
+        return $this->hasMany(ArticleMedia::className(), ['media_id' => 'id']);
+    }
+
+    public function getArticle()
+    {
+        return $this->hasMany(Article::className(), ['id' => 'article_id'])->via('articleMedia');
+    }
+
+    public function upload()
+    {
+        if(!empty($this->imageFile) && $this->validate('imageFile'))
+        {
+            $uploaddir = \Yii::getAlias('@saveImageDir');
+            $this->hash = md5_file($this->imageFile->tempName).\Yii::$app->security->generateRandomString(5);
+            $this->extension = $this->imageFile->extension;
+            if(is_dir($uploaddir.$this->hash)) {
+                return false;
+            } else {
+                if(!mkdir($uploaddir.$this->hash, 0755)) {
+                    return false;
+                }
+            }
+            $this->imageFile->saveAs($uploaddir.$this->hash.'/original.'.$this->imageFile->extension, false);
+            if($this->save(false)) {
+                return true;
+            } else {
+                $this->addError('imageFile', \Yii::t('app', 'Cannot load file'));
+                return false;
+            }
+        } else {
+            return false;
+        }
+    }
+
+    public function delete()
+    {
+        $uploaddir = \Yii::getAlias('@saveImageDir');
+        if(is_dir($uploaddir.$this->hash)) {
+            $this->removeDir($uploaddir.$this->hash);
+        }
+        return parent::delete();
+    }
+
+    public function removeDir($dir)
+    {
+        if($objs = glob($dir."/*")) {
+            foreach($objs as $obj) {
+                is_dir($obj) ? removeDir($obj) : unlink($obj);
+            }
+        }
+        rmdir($dir);
+    }
+}
diff --git a/common/modules/blog/models/Article.php b/common/modules/blog/models/Article.php
new file mode 100644
index 0000000..b9bd15e
--- /dev/null
+++ b/common/modules/blog/models/Article.php
@@ -0,0 +1,161 @@
+<?php
+
+namespace common\modules\blog\models;
+
+use common\models\Media;
+use common\models\User;
+use common\modules\blog\behaviors\Autocomplete;
+use Yii;
+use yii\db\Query;
+
+/**
+ * This is the model class for table "article".
+ *
+ * @property integer $id
+ * @property integer $sort
+ * @property string $create_at
+ * @property string $update_at
+ * @property string $code
+ * @property integer $author
+ * @property string $tags
+ * @property integer $parent_id
+ * @property integer $active
+ * @property integer $comments
+ * @property integer $voting
+ *
+ * @property Article $parent
+ * @property Article[] $articles
+ * @property User $author0
+ * @property ArticleLang[] $articleLangs
+ * @property ArticleMedia[] $articleMedia
+ * @property ArticleToCategory[] $articleToCategories
+ * @property Media[] $media
+ */
+class Article extends \yii\db\ActiveRecord
+{
+    /**
+     * @inheritdoc
+     */
+    public static function tableName()
+    {
+        return 'article';
+    }
+
+    public function behaviors()
+    {
+        return [
+            [
+                'class' => Autocomplete::className(),
+                'attributes' => [
+                    'translit' => ['code'],
+                ]
+            ]
+        ];
+    }
+    /**
+     * @inheritdoc
+     */
+    public function rules()
+    {
+        return [
+            [['sort', 'parent_id', 'active', 'comments', 'voting'], 'integer'],
+            [['create_at', 'update_at'], 'safe'],
+            [['code'], 'required'],
+            [['code', 'tags'], 'string']
+        ];
+    }
+
+    /**
+     * @inheritdoc
+     */
+    public function attributeLabels()
+    {
+        return [
+            'id' => Yii::t('app', 'ID'),
+            'sort' => Yii::t('app', 'Sort'),
+            'create_at' => Yii::t('app', 'Create At'),
+            'update_at' => Yii::t('app', 'Update At'),
+            'code' => Yii::t('app', 'Code'),
+            'author' => Yii::t('app', 'Author'),
+            'tags' => Yii::t('app', 'Tags'),
+            'parent_id' => Yii::t('app', 'Parent ID'),
+            'active' => Yii::t('app', 'Active'),
+            'comments' => Yii::t('app', 'Comments'),
+            'voting' => Yii::t('app', 'Voting'),
+        ];
+    }
+
+    /**
+     * @return \yii\db\ActiveQuery
+     */
+    public function getParent()
+    {
+        return $this->hasOne(Article::className(), ['id' => 'parent_id']);
+    }
+
+    /**
+     * @return \yii\db\ActiveQuery
+     */
+    public function getArticles()
+    {
+        return $this->hasMany(Article::className(), ['parent_id' => 'id']);
+    }
+
+    /**
+     * @return \yii\db\ActiveQuery
+     */
+    public function getAuthor0()
+    {
+        return $this->hasOne(User::className(), ['id' => 'author']);
+    }
+
+    /**
+     * @return \yii\db\ActiveQuery
+     */
+    public function getArticleLangs()
+    {
+        return $this->hasMany(ArticleLang::className(), ['article_id' => 'id']);
+    }
+
+    /**
+     * @return \yii\db\ActiveQuery
+     */
+    public function getArticleMedia()
+    {
+        return $this->hasMany(ArticleMedia::className(), ['article_id' => 'id']);
+    }
+
+    public function getMedia()
+    {
+        return $this->hasMany(Media::className(), ['id' => 'media_id'])->via('articleMedia');
+    }
+    /**
+     * @return \yii\db\ActiveQuery
+     */
+    public function getArticleToCategories()
+    {
+        return $this->hasMany(ArticleToCategory::className(), ['article_id' => 'id']);
+    }
+
+    public function getArticleCategories()
+    {
+        return $this->hasMany(ArticleCategory::className(), ['id' => 'category_id'])->viaTable('article_to_category', ['article_id' => 'id']);
+    }
+
+    public static function findArticleDropdown($id)
+    {
+        $query = new Query();
+        return $query->select(['l.name', 'a.id'])
+            ->from(['article a'])
+            ->leftJoin(['article_lang l'], 'a.id = l.article_id')
+            ->where(['l.lang_id' => 0, 'a.active' => 1])
+            ->andWhere(['not', ['a.id' => $id]])
+            ->indexBy('a.id')
+            ->column();
+    }
+
+    public function getArticleCategoriesArray()
+    {
+        return $this->getArticleToCategories()->select('category_id')->column();
+    }
+}
diff --git a/common/modules/blog/models/ArticleCategory.php b/common/modules/blog/models/ArticleCategory.php
new file mode 100644
index 0000000..6fd39e9
--- /dev/null
+++ b/common/modules/blog/models/ArticleCategory.php
@@ -0,0 +1,133 @@
+<?php
+
+namespace common\modules\blog\models;
+
+use common\modules\blog\behaviors\Autocomplete;
+use Yii;
+use yii\behaviors\TimestampBehavior;
+use yii\db\ActiveRecord;
+use yii\db\Query;
+
+/**
+ * This is the model class for table "article_category".
+ *
+ * @property integer $id
+ * @property integer $active
+ * @property integer $sort
+ * @property string $code
+ * @property string $created_at
+ * @property string $updated_at
+ * @property string $tags
+ * @property integer $parent_id
+ *
+ * @property Article[] $articles
+ * @property ArticleCategory $parent
+ * @property ArticleCategory[] $articleCategories
+ * @property ArticleCategoryLang[] $articleCategoryLangs
+ * @property ArticleCategoryMedia[] $articleCategoryMedia
+ */
+class ArticleCategory extends ActiveRecord
+{
+    /**
+     * @inheritdoc
+     */
+    public static function tableName()
+    {
+        return 'article_category';
+    }
+
+    public function behaviors()
+    {
+        return [
+            [
+                'class' => Autocomplete::className(),
+                'attributes' => [
+                    'translit' => ['code'],
+                ]
+            ]
+        ];
+    }
+    /**
+     * @inheritdoc
+     */
+    public function rules()
+    {
+        return [
+            [['active', 'sort', 'parent_id'], 'integer'],
+            [['code'], 'required'],
+            [['code', 'tags'], 'string'],
+            [['created_at', 'updated_at'], 'safe'],
+            [['active'], 'boolean'],
+        ];
+    }
+
+    /**
+     * @inheritdoc
+     */
+    public function attributeLabels()
+    {
+        return [
+            'id' => Yii::t('app', 'ID'),
+            'active' => Yii::t('app', 'Active'),
+            'sort' => Yii::t('app', 'Sort'),
+            'code' => Yii::t('app', 'Code'),
+            'created_at' => Yii::t('app', 'Created At'),
+            'updated_at' => Yii::t('app', 'Updated At'),
+            'tags' => Yii::t('app', 'Tags'),
+            'parent_id' => Yii::t('app', 'Parent ID'),
+        ];
+    }
+
+    /**
+     * @return \yii\db\ActiveQuery
+     */
+    public function getArticles()
+    {
+        return $this->hasMany(Article::className(), ['category_id' => 'id']);
+    }
+
+    /**
+     * @return \yii\db\ActiveQuery
+     */
+    public function getParent()
+    {
+        return $this->hasOne(ArticleCategory::className(), ['id' => 'parent_id']);
+    }
+
+    /**
+     * @return \yii\db\ActiveQuery
+     */
+    public function getArticleCategories()
+    {
+        return $this->hasMany(ArticleCategory::className(), ['parent_id' => 'id']);
+    }
+
+    /**
+     * @return \yii\db\ActiveQuery
+     */
+    public function getArticleCategoryLangs()
+    {
+        return $this->hasMany(ArticleCategoryLang::className(), ['category_id' => 'id']);
+    }
+
+    /**
+     * @return \yii\db\ActiveQuery
+     */
+    public function getArticleCategoryMedia()
+    {
+        return $this->hasMany(ArticleCategoryMedia::className(), ['category_id' => 'id']);
+    }
+
+    public static function findArticleCategoryDropdown($id)
+    {
+        $query = new Query();
+        return $query->select(['l.name', 'c.id'])
+                        ->from(['article_category c'])
+                        ->leftJoin(['article_category_lang l'], 'c.id = l.category_id')
+                        ->where(['l.lang_id' => 0, 'c.active' => 1])
+                        ->andWhere(['not', ['c.id' => $id]])
+                        ->indexBy('id')
+                        ->column();
+    }
+
+}
diff --git a/common/modules/blog/models/ArticleCategoryLang.php b/common/modules/blog/models/ArticleCategoryLang.php
new file mode 100644
index 0000000..10a5c97
--- /dev/null
+++ b/common/modules/blog/models/ArticleCategoryLang.php
@@ -0,0 +1,102 @@
+<?php
+
+namespace common\modules\blog\models;
+
+use common\modules\blog\behaviors\Autocomplete;
+use Yii;
+
+/**
+ * This is the model class for table "article_category_lang".
+ *
+ * @property integer $id
+ * @property integer $lang_id
+ * @property integer $category_id
+ * @property string $text
+ * @property string $preview
+ * @property string $seo_url
+ * @property string $name
+ * @property string $meta_title
+ * @property string $meta_descr
+ * @property string $meta_keywords
+ * @property string $h1_tag
+ * @property string $tags
+ *
+ * @property ArticleCategory $category
+ * @property Language $lang
+ */
+class ArticleCategoryLang extends \yii\db\ActiveRecord
+{
+    /**
+     * @inheritdoc
+     */
+    public static function tableName()
+    {
+        return 'article_category_lang';
+    }
+
+    public function behaviors()
+    {
+        return [
+            [
+                'class' => Autocomplete::className(),
+                'attributes' => [
+                    'repeat' => [['preview', 'text', false, 5, true, '...']],
+                ]
+            ]
+        ];
+    }
+    /**
+     * @inheritdoc
+     */
+    public function rules()
+    {
+        return [
+            [['lang_id', 'category_id'], 'integer'],
+            [['text', 'name'], 'required'],
+            [['text', 'preview', 'seo_url', 'name', 'meta_title', 'meta_descr', 'meta_keywords', 'h1_tag', 'tags'], 'string'],
+            ['seo_url', function($attribute, $params) {
+                $pattern = "/^[a-zA-Z\d_-]+$/";
+                if(!preg_match($pattern, $this->$attribute)) {
+                    $this->addError($attribute, Yii::t('app', "Pattern doesn't match."));
+                }
+            }]
+        ];
+    }
+
+    /**
+     * @inheritdoc
+     */
+    public function attributeLabels()
+    {
+        return [
+            'id' => Yii::t('app', 'ID'),
+            'lang_id' => Yii::t('app', 'Lang ID'),
+            'category_id' => Yii::t('app', 'Category ID'),
+            'text' => Yii::t('app', 'Text'),
+            'preview' => Yii::t('app', 'Preview'),
+            'seo_url' => Yii::t('app', 'Seo Url'),
+            'name' => Yii::t('app', 'Name'),
+            'meta_title' => Yii::t('app', 'Meta Title'),
+            'meta_descr' => Yii::t('app', 'Meta Descr'),
+            'meta_keywords' => Yii::t('app', 'Meta Keywords'),
+            'h1_tag' => Yii::t('app', 'H1 Tag'),
+            'tags' => Yii::t('app', 'Tags'),
+        ];
+    }
+
+    /**
+     * @return \yii\db\ActiveQuery
+     */
+    public function getCategory()
+    {
+        return $this->hasOne(ArticleCategory::className(), ['id' => 'category_id']);
+    }
+
+    /**
+     * @return \yii\db\ActiveQuery
+     */
+    public function getLang()
+    {
+        return $this->hasOne(Language::className(), ['language_id' => 'lang_id']);
+    }
+}
diff --git a/common/modules/blog/models/ArticleCategoryMedia.php b/common/modules/blog/models/ArticleCategoryMedia.php
new file mode 100644
index 0000000..4c7c1aa
--- /dev/null
+++ b/common/modules/blog/models/ArticleCategoryMedia.php
@@ -0,0 +1,159 @@
+<?php
+
+namespace common\modules\blog\models;
+
+use common\models\Media;
+use Yii;
+
+/**
+ * This is the model class for table "article_category_media".
+ *
+ * @property integer $id
+ * @property integer $category_id
+ * @property integer $media_id
+ * @property string $media_alt
+ * @property string $media_title
+ * @property string $media_caption
+ * @property string $type
+ *
+ * @property ArticleCategory $category
+ * @property Media $media
+ */
+class ArticleCategoryMedia extends \yii\db\ActiveRecord
+{
+    const SCENARIO_FULL = 'full';
+    const SCENARIO_PREVIEW = 'preview';
+    const SCENARIO_ADDITIONAL = 'additional';
+    public $imageFile;
+    /**
+     * @inheritdoc
+     */
+    public static function tableName()
+    {
+        return 'article_category_media';
+    }
+
+    public function scenarios()
+    {
+        $scenarios = parent::scenarios();
+        $scenarios[self::SCENARIO_FULL] = ['id', 'category_id', 'media_id', 'type', 'media_alt', 'media_title', 'media_caption', 'imageFile'];
+        $scenarios[self::SCENARIO_PREVIEW] = ['id', 'category_id', 'media_id', 'type', 'media_alt', 'media_title', 'media_caption', 'imageFile'];
+        $scenarios[self::SCENARIO_ADDITIONAL] = ['id', 'category_id', 'media_id', 'type', 'imageFile'];
+        return $scenarios;
+    }
+
+    /**
+     * @inheritdoc
+     */
+    public function rules()
+    {
+        return [
+            [['category_id', 'media_id'], 'required'],
+            [['category_id', 'media_id'], 'integer'],
+            [['media_alt', 'media_title', 'media_caption'], 'string'],
+            [['type'], 'string', 'max' => 10],
+            [['imageFile'], 'file', 'extensions' => 'png, gif, jpg, jpeg', 'skipOnEmpty' => true, 'on' => self::SCENARIO_FULL],
+            [['imageFile'], 'file', 'extensions' => 'png, gif, jpg, jpeg', 'skipOnEmpty' => true, 'on' => self::SCENARIO_PREVIEW],
+            [['imageFile'], 'file', 'extensions' => 'png, gif, jpg, jpeg', 'skipOnEmpty' => true, 'maxFiles' => 10, 'on' => self::SCENARIO_ADDITIONAL]
+        ];
+    }
+
+    /**
+     * @inheritdoc
+     */
+    public function attributeLabels()
+    {
+        return [
+            'id' => Yii::t('app', 'ID'),
+            'category_id' => Yii::t('app', 'Category ID'),
+            'media_id' => Yii::t('app', 'Media ID'),
+            'media_alt' => Yii::t('app', 'Media Alt'),
+            'media_title' => Yii::t('app', 'Media Title'),
+            'media_caption' => Yii::t('app', 'Media Caption'),
+            'type' => Yii::t('app', 'Type'),
+            'imageFile' => Yii::t('app', 'Image File'),
+        ];
+    }
+
+    /**
+     * @return \yii\db\ActiveQuery
+     */
+    public function getCategory()
+    {
+        return $this->hasOne(ArticleCategory::className(), ['id' => 'category_id']);
+    }
+
+    /**
+     * @return \yii\db\ActiveQuery
+     */
+    public function getMedia()
+    {
+        return $this->hasOne(Media::className(), ['id' => 'media_id']);
+    }
+
+    public function upload($category_id)
+    {
+        $this->category_id = $category_id;
+        if(is_array($this->imageFile)) {
+            $ok = true;
+            foreach($this->imageFile as $image) {
+                $media_category = clone $this;
+                $media = new Media();
+                $media->imageFile = $image;
+                $media->upload();
+                $media_category->media_id = $media->id;
+                $ok = $media_category->save() && $ok;
+                unset($media_category);
+            }
+            return $ok;
+        } elseif(!empty($this->imageFile)) {
+            $media = new Media();
+            $media->imageFile = $this->imageFile;
+            $media->upload();
+            $this->media_id = $media->id;
+            return $this->save();
+        }
+    }
+
+    public function replace($category_id, $removeMedia = false)
+    {
+        $this->category_id = $category_id;
+        if($removeMedia) {
+            $category_media = ArticleCategoryMedia::find()->select('media_id')->where(['category_id' => $this->category_id, 'type' => $this->type])->column();
+            $media = array();
+            foreach($category_media as $media_id) {
+                $media[] = Media::findOne(['id' => $media_id]);
+            }
+            $media = array_unique($media);
+            foreach($media as $one_media) {
+                if($one_media instanceof Media) {
+                    $one_media->delete();
+                }
+            }
+            unset($media);
+            unset($category_media);
+        }
+        if(is_array($this->imageFile)) {
+            $ok = true;
+            foreach($this->imageFile as $image) {
+                $media_category = clone $this;
+                $media = new Media();
+                $media->imageFile = $image;
+                $media->upload();
+                $media_category->media_id = $media->id;
+                $ok = $media_category->save() && $ok;
+                unset($media_category);
+            }
+            return $ok;
+        } elseif(!empty($this->imageFile)) {
+            ArticleCategoryMedia::deleteAll(['category_id' => $this->category_id, 'type' => $this->type]);
+            $media = new Media();
+            $media->imageFile = $this->imageFile;
+            $media->upload();
+            $this->media_id = $media->id;
+            $this->setIsNewRecord(true);
+            return $this->save();
+        }
+    }
+
+}
diff --git a/common/modules/blog/models/ArticleLang.php b/common/modules/blog/models/ArticleLang.php
new file mode 100644
index 0000000..7bc23b7
--- /dev/null
+++ b/common/modules/blog/models/ArticleLang.php
@@ -0,0 +1,85 @@
+<?php
+
+namespace common\modules\blog\models;
+
+use Yii;
+use common\models\Language;
+
+/**
+ * This is the model class for table "article_lang".
+ *
+ * @property integer $id
+ * @property integer $lang_id
+ * @property integer $article_id
+ * @property string $text
+ * @property string $seo_url
+ * @property string $name
+ * @property string $preview
+ * @property string $meta_title
+ * @property string $meta_descr
+ * @property string $meta_keywords
+ * @property string $h1_tag
+ * @property string $tags
+ *
+ * @property Article $article
+ * @property Language $lang
+ */
+class ArticleLang extends \yii\db\ActiveRecord
+{
+    /**
+     * @inheritdoc
+     */
+    public static function tableName()
+    {
+        return 'article_lang';
+    }
+
+    /**
+     * @inheritdoc
+     */
+    public function rules()
+    {
+        return [
+            [['lang_id', 'text', 'name'], 'required'],
+            [['lang_id', 'article_id'], 'integer'],
+            [['text', 'seo_url', 'name', 'preview', 'meta_title', 'meta_descr', 'meta_keywords', 'h1_tag', 'tags'], 'string']
+        ];
+    }
+
+    /**
+     * @inheritdoc
+     */
+    public function attributeLabels()
+    {
+        return [
+            'id' => Yii::t('app', 'ID'),
+            'lang_id' => Yii::t('app', 'Lang ID'),
+            'article_id' => Yii::t('app', 'Article ID'),
+            'text' => Yii::t('app', 'Text'),
+            'seo_url' => Yii::t('app', 'Seo Url'),
+            'name' => Yii::t('app', 'Name'),
+            'preview' => Yii::t('app', 'Preview'),
+            'meta_title' => Yii::t('app', 'Meta Title'),
+            'meta_descr' => Yii::t('app', 'Meta Descr'),
+            'meta_keywords' => Yii::t('app', 'Meta Keywords'),
+            'h1_tag' => Yii::t('app', 'H1 Tag'),
+            'tags' => Yii::t('app', 'Tags'),
+        ];
+    }
+
+    /**
+     * @return \yii\db\ActiveQuery
+     */
+    public function getArticle()
+    {
+        return $this->hasOne(Article::className(), ['id' => 'article_id']);
+    }
+
+    /**
+     * @return \yii\db\ActiveQuery
+     */
+    public function getLang()
+    {
+        return $this->hasOne(Language::className(), ['language_id' => 'lang_id']);
+    }
+}
diff --git a/common/modules/blog/models/ArticleMedia.php b/common/modules/blog/models/ArticleMedia.php
new file mode 100644
index 0000000..386f107
--- /dev/null
+++ b/common/modules/blog/models/ArticleMedia.php
@@ -0,0 +1,160 @@
+<?php
+
+namespace common\modules\blog\models;
+
+use common\models\Media;
+use Yii;
+use yii\web\UploadedFile;
+
+/**
+ * This is the model class for table "article_media".
+ *
+ * @property integer $id
+ * @property integer $article_id
+ * @property integer $media_id
+ * @property string $type
+ * @property string $media_alt
+ * @property string $media_title
+ * @property string $media_caption
+ *
+ * @property Article $article
+ * @property Media $media
+ */
+class ArticleMedia extends \yii\db\ActiveRecord
+{
+    const SCENARIO_FULL = 'full';
+    const SCENARIO_PREVIEW = 'preview';
+    const SCENARIO_ADDITIONAL = 'additional';
+    public $imageFile;
+    /**
+     * @inheritdoc
+     */
+    public static function tableName()
+    {
+        return 'article_media';
+    }
+
+    public function scenarios()
+    {
+        $scenarios = parent::scenarios();
+        $scenarios[self::SCENARIO_FULL] = ['id', 'article_id', 'media_id', 'type', 'media_alt', 'media_title', 'media_caption', 'imageFile'];
+        $scenarios[self::SCENARIO_PREVIEW] = ['id', 'article_id', 'media_id', 'type', 'media_alt', 'media_title', 'media_caption', 'imageFile'];
+        $scenarios[self::SCENARIO_ADDITIONAL] = ['id', 'article_id', 'media_id', 'type', 'imageFile'];
+        return $scenarios;
+    }
+
+    /**
+     * @inheritdoc
+     */
+    public function rules()
+    {
+        return [
+            [['article_id', 'media_id'], 'required'],
+            [['article_id', 'media_id'], 'integer'],
+            [['media_alt', 'media_title', 'media_caption'], 'string'],
+            [['type'], 'string', 'max' => 10],
+            [['imageFile'], 'file', 'extensions' => 'png, gif, jpg, jpeg', 'skipOnEmpty' => true, 'on' => self::SCENARIO_FULL],
+            [['imageFile'], 'file', 'extensions' => 'png, gif, jpg, jpeg', 'skipOnEmpty' => true, 'on' => self::SCENARIO_PREVIEW],
+            [['imageFile'], 'file', 'extensions' => 'png, gif, jpg, jpeg', 'skipOnEmpty' => true, 'maxFiles' => 10, 'on' => self::SCENARIO_ADDITIONAL]
+        ];
+    }
+
+    /**
+     * @inheritdoc
+     */
+    public function attributeLabels()
+    {
+        return [
+            'id' => Yii::t('app', 'ID'),
+            'article_id' => Yii::t('app', 'Article ID'),
+            'media_id' => Yii::t('app', 'Media ID'),
+            'type' => Yii::t('app', 'Type'),
+            'media_alt' => Yii::t('app', 'Media Alt'),
+            'media_title' => Yii::t('app', 'Media Title'),
+            'media_caption' => Yii::t('app', 'Media Caption'),
+            'imageFile' => Yii::t('app', 'Image File'),
+        ];
+    }
+
+    /**
+     * @return \yii\db\ActiveQuery
+     */
+    public function getArticle()
+    {
+        return $this->hasOne(Article::className(), ['id' => 'article_id']);
+    }
+
+    /**
+     * @return \yii\db\ActiveQuery
+     */
+    public function getMedia()
+    {
+        return $this->hasOne(Media::className(), ['id' => 'media_id']);
+    }
+
+    public function upload($article_id)
+    {
+        $this->article_id = $article_id;
+        if(is_array($this->imageFile)) {
+            $ok = true;
+            foreach($this->imageFile as $image) {
+                $media_article = clone $this;
+                $media = new Media();
+                $media->imageFile = $image;
+                $media->upload();
+                $media_article->media_id = $media->id;
+                $ok = $media_article->save() && $ok;
+                unset($media_article);
+            }
+            return $ok;
+        } elseif(!empty($this->imageFile)) {
+            $media = new Media();
+            $media->imageFile = $this->imageFile;
+            $media->upload();
+            $this->media_id = $media->id;
+            return $this->save();
+        }
+    }
+
+    public function replace($article_id, $removeMedia = false)
+    {
+        $this->article_id = $article_id;
+        if($removeMedia) {
+            $article_media = ArticleMedia::find()->select('media_id')->where(['article_id' => $this->article_id, 'type' => $this->type])->column();
+            $media = array();
+            foreach($article_media as $media_id) {
+                $media[] = Media::findOne(['id' => $media_id]);
+            }
+            $media = array_unique($media);
+            foreach($media as $one_media) {
+                if($one_media instanceof Media) {
+                    $one_media->delete();
+                }
+            }
+            unset($media);
+            unset($article_media);
+        }
+        if(is_array($this->imageFile)) {
+            $ok = true;
+            foreach($this->imageFile as $image) {
+                $media_article = clone $this;
+                $media = new Media();
+                $media->imageFile = $image;
+                $media->upload();
+                $media_article->media_id = $media->id;
+                $ok = $media_article->save() && $ok;
+                unset($media_article);
+            }
+            return $ok;
+        } elseif(!empty($this->imageFile)) {
+            ArticleMedia::deleteAll(['article_id' => $this->article_id, 'type' => $this->type]);
+            $media = new Media();
+            $media->imageFile = $this->imageFile;
+            $media->upload();
+            $this->media_id = $media->id;
+            $this->setIsNewRecord(true);
+            return $this->save();
+        }
+    }
+
+}
diff --git a/common/modules/blog/models/ArticleToCategory.php b/common/modules/blog/models/ArticleToCategory.php
new file mode 100644
index 0000000..a3d62d0
--- /dev/null
+++ b/common/modules/blog/models/ArticleToCategory.php
@@ -0,0 +1,62 @@
+<?php
+
+namespace common\modules\blog\models;
+
+use Yii;
+
+/**
+ * This is the model class for table "article_to_category".
+ *
+ * @property integer $article_id
+ * @property integer $category_id
+ *
+ * @property Article $article
+ * @property ArticleCategory $category
+ */
+class ArticleToCategory extends \yii\db\ActiveRecord
+{
+    /**
+     * @inheritdoc
+     */
+    public static function tableName()
+    {
+        return 'article_to_category';
+    }
+
+    /**
+     * @inheritdoc
+     */
+    public function rules()
+    {
+        return [
+            [['article_id', 'category_id'], 'integer']
+        ];
+    }
+
+    /**
+     * @inheritdoc
+     */
+    public function attributeLabels()
+    {
+        return [
+            'article_id' => Yii::t('app', 'Article ID'),
+            'category_id' => Yii::t('app', 'Category ID'),
+        ];
+    }
+
+    /**
+     * @return \yii\db\ActiveQuery
+     */
+    public function getArticle()
+    {
+        return $this->hasOne(Article::className(), ['id' => 'article_id']);
+    }
+
+    /**
+     * @return \yii\db\ActiveQuery
+     */
+    public function getCategory()
+    {
+        return $this->hasOne(ArticleCategory::className(), ['id' => 'category_id']);
+    }
+}
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--
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