Metaphor

A Laravel package that allows you to manage metadata. This package is maintained under Laravel 5.8.

Installation

Run the following command.

composer require sukohi/metaphor:3.*

Preparation

1. Trait

Set MetaphorTrait in your model as follows.

<?php

namespace App;

use Illuminate\Database\Eloquent\Model;
use Sukohi\Metaphor\MetaphorTrait;

class Item extends Model
{
    use MetaphorTrait;
}

2. Migration

Just run the migration command.

Note: You do NOT need to make any migrations by yourself because this package already has it.

php artisan migrate

That's it!

Usage

Save

$item = \App\Item::find(1);
$item->meta->key_1 = 300;
$item->meta->key_2 = 'yyy';
$item->meta->key_3 = ['item_1x', 'item_2', 'item_3'];
$item->meta->key_4 = null;
$item->meta->save();

Note: $item->meta is an extended Collection of Laravel.
So you can use all of the methods as usual.

Delete

$item->meta->delete($key);

// or

$item->meta->deleteAll();

Check if a meta value exists

if($item->meta->has($key)) {

    // has it!

}

About appending

If you'd like metadata to include in model data, set meta to $appends.

<?php

namespace App;

use Illuminate\Database\Eloquent\Model;
use Sukohi\Metaphor\MetaphorTrait;

class Item extends Model
{
    use MetaphorTrait;
    protected $appends = ['meta'];  // <- here
}

Where clause

1. whereMeta

\App\Item::whereMeta('price', '500')->get();
\App\Item::whereMeta('price', 'LIKE', '%50%')->get();
\App\Item::orWhereMeta('price', '500')->get();
\App\Item::orWhereMeta('price', 'LIKE', '%50%')->get();

2. whereMetaIn

\App\Item::whereMetaIn('price', [300, 500])->get();
\App\Item::orWhereMetaIn('price', [300, 500])->get();

3. whereMetaNotIn

\App\Item::whereMetaNotIn('price', [300, 500])->get();
\App\Item::orWhereMetaNotIn('price', [300, 500])->get();

4. whereMetaNull

\App\Item::whereMetaNull('price')->get();
\App\Item::orWhereMetaNull('price')->get();

5. whereMetaNotNull

\App\Item::whereMetaNotNull('price')->get();
\App\Item::orWhereMetaNotNull('price')->get();

OrderByMeta

\App\Item::orderByMeta($key', 'asc')->get();
\App\Item::orderByMeta($key', 'desc')->get();

Note: This method uses FIELD(value, val1, val2, val3, ...) function in SQL.
It means if your DB system does not have the function, this feature is not available. MySQL has it, though.

SUKOHI / Metaphor