Laravel 4 Polymorphic Relationship with Namespaced Models - php

Question

I created an Seo table with Eloquent's polymorphic relationship. So for Seo table, I have something like this
title
description
seoble_id
seoble_type
timestamps
Then for all the models that will have custom SEO, I added the morphOne relationship while the Seo model will have morphMany relationship. So for Post model I will have something like this
namespace App\Models;
class Post extends Eloquent {
public function seo()
{
return $this->morphOne('App\Models\Seo', 'seoble');
}
}
However, the relationship will only work if I the seoble_type is filled with the fully namespaced model class name. So the seoble_type must be 'App\Models\Post' (model name like 'Post' or table name like 'posts' will not work) for the polymorphic relationship to work. The problem is, if I somehow want to change the namespace, I will have to update all the seo table to update the seoble_type field, which will be a hassle.
Now, before I tried the polymorphic relationship, I usually created the equivalent table something like this:
title
description
object_id
type
timestamps
And for the relationship, for each model I will have something like this:
namespace App\Models;
class Post extends Eloquent {
public function seo()
{
return $this->hasOne('App\Models\Seo', 'object_id')->where('type', 'post');
}
}
My question is, are these 2 methods equivalent?

Answer 1

if you using morph it mean you wish single table can be used as relations to any table with indication by object_id and type_id. so the answer for your question, is not equivalent.
I thought at your case (for save seo table) the recommended ways as my opinions is using morphOne.
and then, for your problem in morph you can fill your seoable_type with whatever do you like, not should fill with your namespace
here is simple code when using morph :
namespace App\Models;
class Seo extends Eloquent {
public function seoable()
{
return $this->morphTo();
}
public function post()
{
return $this->belongsTo('App\Models\Seo', 'seoable_id');
}
}
/*----*/
namespace App\Models;
class Post extends Eloquent {
public function getSeo($type)
{
return $this->morphOne('App\Models\Seo', 'seoable');
}
}
// you can using like this :
$seo = \Seo::where('seoable_type', 'post');
$seo->post->first();
// or like this :
$post = \Post::with('getSeo')->findOrFail($id)->toArray();
wish this helped you.