WowPress-Tailwind/theme/vendor/wenprise/eloquent/readme.md

Credits

Thanks to:

1. https://github.com/tareq1988/wp-eloquent
2. https://github.com/corcel/corcel

Eloquent Wrapper for WordPress

This is a library package to use Laravel's Eloquent ORM with WordPress.

How it Works

• Eloquent is mainly used here as the query builder
• WPDB is used to run queries built by Eloquent
• Hence, we have the benfit to use plugins like debug-bar or query-monitor to get SQL query reporting.
• It doesn't create any extra MySQL connection

Minimum Requirement

• PHP 7.0
• WordPress 3.6+

Package Installation

$ composer require wenprise/eloquent

Usage Example

Basic Usage

$db = \Wenprise\Eloquent\Database::instance();

var_dump( $db->table('users')->find(1) );
var_dump( $db->select('SELECT * FROM wp_users WHERE id = ?', [1]) );
var_dump( $db->table('users')->where('user_login', 'john')->first() );

// OR with DB facade
use \Wenprise\Eloquent\Facades\DB;

var_dump( DB::table('users')->find(1) );
var_dump( DB::select('SELECT * FROM wp_users WHERE id = ?', [1]) );
var_dump( DB::table('users')->where('user_login', 'john')->first() );

Posts

use Wenprise\ORM\WP\Post;

// All published posts
$posts = Post::published()->get();
$posts = Post::status('publish')->get();

// A specific post
$post = Post::find(31);
echo $post->post_title;

Pages

Pages are like custom post types. You can use Post::type('page') or the Wenprise\ORM\WP\Page class.

// Find a page by slug
$page = Page::slug('about')->first(); // OR
$page = Post::type('page')->slug('about')->first();
echo $page->post_title;

Comments

use Wenprise\ORM\WP\Comment;

// Get Comment with id 12345
$comment = Comment::find(12345);

// Get related data
$comment->post;
$comment->author;
$comment->meta

Meta Data (Custom Fields)

You can retrieve meta data from posts too.

// Get a custom meta value (like 'link' or whatever) from a post (any type)
$post = Post::find(31);
echo $post->meta->link; // OR
echo $post->fields->link;
echo $post->link; // OR

To create or update meta data form a User just use the saveMeta() or saveField() methods. They return bool like the Eloquent save() method.

$post = Post::find(1);
$post->saveMeta('username', 'jgrossi');

You can save many meta data at the same time too:

$post = Post::find(1);
$post->saveMeta([
    'username' => 'jgrossi',
    'url' => 'http://jgrossi.com',
]);

You also have the createMeta() and createField() methods, that work like the saveX() methods, but they are used only for creation and return the PostMeta created instance, instead of bool.

$post = Post::find(1);
$postMeta = $post->createMeta('foo', 'bar'); // instance of PostMeta class
$trueOrFalse = $post->saveMeta('foo', 'baz'); // boolean

Querying Posts by Custom Fields (Meta)

There are multiples possibilities to query posts by their custom fields (meta). Just use the hasMeta() scope under Post (actually for all models using the HasMetaFields trait) class:

// Using just one custom field
$post = Post::published()->hasMeta('username', 'jgrossi')->first(); // setting key and value
$post = Post::published()->hasMeta('username'); // setting just the key

You can also use the hasMeta() scope passing an array as parameter:

$post = Post::hasMeta(['username' => 'jgrossi'])->first();
$post = Post::hasMeta(['username' => 'jgrossi', 'url' => 'jgrossi.com'])->first();
// Or just passing the keys
$post = Post::hasMeta(['username', 'url'])->first();

Fields Aliases

The Post class has support to "aliases", so if you check the Post class you should note some aliases defined in the static $aliases array, like title for post_title and content for post_content.

$post = Post::find(1);
$post->title === $post->post_title; // true

If you're extending the Post class to create your own class you can use $aliases too. Just add new aliases to that static property inside your own class and it will automatically inherit all aliases from parent Post class:

class A extends Post
{
    protected static $aliases = [
        'foo' => 'post_foo',
    ];
}

$a = A::find(1);
echo $a->foo;
echo $a->title; // from Post class

Custom Scopes

To order posts you can use newest() and oldest() scopes, for both Post and User classes:

$newest = Post::newest()->first();
$oldest = Post::oldest()->first();

Pagination

To order posts just use Eloquent paginate() method:

$posts = Post::published()->paginate(5);
foreach ($posts as $post) {
    // ...
}

To display the pagination links just call the links() method:

{{ $posts->links() }}

Post Taxonomies

You can get taxonomies for a specific post like:

$post = Post::find(1);
$taxonomy = $post->taxonomies()->first();
echo $taxonomy->taxonomy;

Or you can search for posts using its taxonomies:

$post = Post::taxonomy('category', 'php')->first();

Categories and Taxonomies

Get a category or taxonomy or load posts from a certain category. There are multiple ways to achieve it.

// all categories
$cat = Taxonomy::category()->slug('uncategorized')->first()->posts();
echo "<pre>"; print_r($cat->name); echo "</pre>";

// only all categories and posts connected with it
$cat = Taxonomy::where('taxonomy', 'category')->with('posts')->get();
$cat->each(function($category) {
    echo $category->name;
});

Attachment and Revision

Getting the attachment and/or revision from a Post or Page.

$page = Page::slug('about')->with('attachment')->first();
// get feature image from page or post
print_r($page->attachment);

$post = Post::slug('test')->with('revision')->first();
// get all revisions from a post or page
print_r($post->revision);

Users

You can manipulate users in the same manner you work with posts:

// All users
$users = User::get();

// A specific user
$user = User::find(1);
echo $user->user_login;

Options

You can use the Option class to get data from wp_options table:

$siteUrl = Option::get('siteurl');

You can also add new options:

Option::add('foo', 'bar'); // stored as string
Option::add('baz', ['one' => 'two']); // this will be serialized and saved

You can get all options in a simple array:

$options = Option::asArray();
echo $options['siteurl'];

Or you can specify only the keys you want to get:

$options = Option::asArray(['siteurl', 'home', 'blogname']);
echo $options['home'];

Writing a Model

use \Wenprise\Eloquent\Model;

class Employee extends Model {

    /**
    * Name for table without prefix, the model can automatic add it
    *
    * @var string
    */
    protected $table = 'table_name';
    
    /**
    * Columns that can be edited
    *
    * @var array
    */
    protected $fillable = [];
    
    /**
    * Disable created_at and update_at columns, unless you have those.
    */
	 public $timestamps = false;
	 
    /**
    * Set primary key as ID, because WordPress
    *
    * @var string
    */
	 protected $primaryKey = 'ID';
    
    /**
     * Make ID guarded -- without this ID doesn't save.
     *
     * @var string
     */
    protected $guarded = [ 'ID' ];
    
    /**
     * The column names allow to be filled 
     * @var array
     */
    protected $fillable = [
        'name',
        'status',
    ];

}

var_dump( Employee::all()->toArray() ); // gets all employees
var_dump( Employee::find(1) ); // find employee with ID 1

The class name Employee will be translated into PREFIX_employees table to run queries. But as usual, you can override the table name.