Here are a few title options that focus on the question and answer format, using a question format: **Option 1 (Direct and Clear):** * **Single Table Inheritance vs. Multi Table Inheritance: Which i

Laravel Eloquent Single Table Inheritance

Problem

You want to implement single table inheritance to create multiple model types that share common properties yet have unique ones.

Solution: Single Table Inheritance

Consider using single table inheritance. In this approach, you have:

• A base Post model bound to a single table.
• Derived Article and Question models extending Post.
• A type column in the Post table to distinguish between model types.

Solution: Multi Table Inheritance

Single table inheritance can lead to null values. Consider multi table inheritance instead:

• Separate tables for each model type (posts, questions, articles).
• Foreign key columns (postable_id, postable_type) in the posts table reference the other tables.
• Polymorphic relationships in Eloquent models to connect the tables.

Eloquent Model Setup

Post

<code class="php">class Post extends Eloquent {
    public function postable() {
        return $this->morphTo();
    }
}</code>

Question / Article

<code class="php">class Question extends Post {
    public function post() {
        return $this->morphOne('Post', 'postable');
    }
}</code>

Usage:

<code class="php">$posts = Post::all();
$questions = Question::all();

$post = Post::find(1);
$question_column2 = $post->postable->question_column2;
$shared_column = $question->post->shared_column;</code>

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