Additional fields for posts and methods for post filtering by categories

Author: chrisjk123

database/migrations/2019_12_28_101010_create_posts_table.php

@@ -19,7 +19,8 @@ public function up()
             $table->index('category_id');
             $table->integer('user_id')->nullable();
             $table->index('user_id');
-            $table->string('name');
+            $table->string('title');
+            $table->string('sub_title');
             $table->string('slug')->nullable();
             $table->string('excerpt')->nullable();
             $table->text('content')->nullable();

src/Post.php

@@ -5,6 +5,7 @@
 use Chriscreates\Blog\Traits\IsAuthorable;
 use Chriscreates\Blog\Traits\Post\PostAttributes;
 use Chriscreates\Blog\Traits\Post\PostScopes;
+use Chriscreates\Blog\Traits\Post\PostsHaveACategory;
 use Chriscreates\Blog\Traits\Post\PostsHaveComments;
 use Illuminate\Database\Eloquent\Model;
 
@@ -13,7 +14,8 @@ class Post extends Model
     use PostScopes,
     PostAttributes,
     IsAuthorable,
-    PostsHaveComments;
+    PostsHaveComments,
+    PostsHaveACategory;
 
     const PUBLISHED = 'published';
     const DRAFT = 'draft';
@@ -45,4 +47,13 @@ public function tags()
     {
         return $this->morphToMany(Tag::class, 'taggable');
     }
+
+    public static function boot()
+    {
+        parent::boot();
+
+        static::deleted(function (Model $post) {
+            $post->tags()->detach();
+        });
+    }
 }

src/Traits/IsAuthorable.php

@@ -2,6 +2,8 @@
 
 namespace Chriscreates\Blog\Traits;
 
+use Illuminate\Support\Facades\Auth;
+
 trait IsAuthorable
 {
     public function author()
@@ -21,4 +23,11 @@ public function user()
             config('blogs.user_key_name')
         );
     }
+
+    public static function bootBelongsToUser()
+    {
+        static::saving(function ($model) {
+            $model->user_id = $model->user_id ?? Auth::id();
+        });
+    }
 }

src/Traits/Post/PostsHaveACategory.php

@@ -0,0 +1,37 @@
+<?php
+
+namespace Chriscreates\Blog\Traits\Post;
+
+use Chriscreates\Blog\Category;
+use Illuminate\Support\Collection;
+
+trait PostsHaveACategory
+{
+    public function hasCategory($category)
+    {
+        if ($category instanceof Category) {
+            $category = $category->id;
+        }
+
+        if (is_null($this->category)) {
+            return false;
+        }
+
+        return $category_id == $this->category->id;
+    }
+
+    public function hasAnyCategory($categories)
+    {
+        if ($categories instanceof Collection) {
+            $categories = $categories->pluck('id')->toArray();
+        }
+
+        foreach ($categories as $category) {
+            if ($this->hasCategory($category)) {
+                return true;
+            }
+        }
+
+        return false;
+    }
+}