firefly-iii/app/models/Component.php

<?php
use FireflyIII\Shared\SingleTableInheritanceEntity;

/**
 * Component
 *
 * @property integer $id
 * @property \Carbon\Carbon $created_at
 * @property \Carbon\Carbon $updated_at
 * @property string $name
 * @property integer $user_id
 * @property string $class
 * @property-read \Illuminate\Database\Eloquent\Collection|\Limit[] $limits
 * @property-read \Illuminate\Database\Eloquent\Collection|\TransactionJournal[] $transactionjournals
 * @property-read \Illuminate\Database\Eloquent\Collection|\Transaction[] $transactions
 * @property-read \User $user
 * @method static \Illuminate\Database\Query\Builder|\Component whereId($value) 
 * @method static \Illuminate\Database\Query\Builder|\Component whereCreatedAt($value) 
 * @method static \Illuminate\Database\Query\Builder|\Component whereUpdatedAt($value) 
 * @method static \Illuminate\Database\Query\Builder|\Component whereName($value) 
 * @method static \Illuminate\Database\Query\Builder|\Component whereUserId($value) 
 * @method static \Illuminate\Database\Query\Builder|\Component whereClass($value) 
 */
class Component extends SingleTableInheritanceEntity
{

    public static $rules
        = [
            'user_id' => 'exists:users,id|required',
            'name'    => ['required', 'between:1,100','min:1', 'alphabasic'],
            'class'   => 'required',
        ];
    protected $table = 'components';
    protected $subclassField = 'class';
    protected $fillable = ['name','user_id'];


    /**
     * @return \Illuminate\Database\Eloquent\Relations\HasMany
     */
    public function limits()
    {
        return $this->hasMany('Limit');
    }

    /**
     * @return \Illuminate\Database\Eloquent\Relations\BelongsToMany
     */
    public function transactionjournals()
    {
        return $this->belongsToMany('TransactionJournal');
    }

    /**
     * @return \Illuminate\Database\Eloquent\Relations\BelongsToMany
     */
    public function transactions()
    {
        return $this->belongsToMany('Transaction');
    }

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

}