firefly-iii/app/models/Preference.php

<?php

use LaravelBook\Ardent\Ardent;

/**
 * Preference
 *
 * @property integer $id
 * @property \Carbon\Carbon $created_at
 * @property \Carbon\Carbon $updated_at
 * @property integer $user_id
 * @property string $name
 * @property string $data
 * @property-read \User $user
 * @method static \Illuminate\Database\Query\Builder|\Preference whereId($value) 
 * @method static \Illuminate\Database\Query\Builder|\Preference whereCreatedAt($value) 
 * @method static \Illuminate\Database\Query\Builder|\Preference whereUpdatedAt($value) 
 * @method static \Illuminate\Database\Query\Builder|\Preference whereUserId($value) 
 * @method static \Illuminate\Database\Query\Builder|\Preference whereName($value) 
 * @method static \Illuminate\Database\Query\Builder|\Preference whereData($value) 
 */
class Preference extends Ardent
{
    public static $rules
        = [
            'user_id' => 'required|exists:users,id',
            'name'    => 'required|between:1,255',
            'data'    => 'required'
        ];

    /**
     * @return \Illuminate\Database\Eloquent\Relations\BelongsTo
     */
    public function user()
    {
        return $this->belongsTo('User');
    }

    /**
     * @param $value
     */
    public function setDataAttribute($value)
    {
        $this->attributes['data'] = json_encode($value);
    }

    /**
     * @param $value
     *
     * @return mixed
     */
    public function getDataAttribute($value)
    {
        return json_decode($value);
    }

}