firefly-iii/app/models/TransactionJournal.php

<?php

use LaravelBook\Ardent\Ardent;


class TransactionJournal extends Ardent
{

    public static $rules
        = [
            'transaction_type_id'     => 'required|exists:transaction_types,id',
            'transaction_currency_id' => 'required|exists:transaction_currencies,id',
            'description'             => 'required|between:1,255',
            'date'                    => 'required|date',
            'completed'               => 'required|between:0,1'
        ];

    /**
     * @return array
     */
    public static function factory()
    {
        $date = new \Carbon\Carbon;

        return [
            'transaction_type_id'     => 'factory|TransactionType',
            'transaction_currency_id' => 'factory|TransactionCurrency',
            'description'             => 'string',
            'completed'               => '1',
            'user_id'                 => 'factory|User',
            'date'                    => $date
        ];
    }

    /**
     * @return \Illuminate\Database\Eloquent\Relations\BelongsToMany
     */
    public function budgets()
    {
        return $this->belongsToMany(
            'Budget', 'component_transaction_journal', 'transaction_journal_id', 'component_id'
        );
    }

    /**
     * @return \Illuminate\Database\Eloquent\Relations\BelongsToMany
     */
    public function categories()
    {
        return $this->belongsToMany(
            'Category', 'component_transaction_journal', 'transaction_journal_id', 'component_id'
        );
    }

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

    /**
     * @return array
     */
    public function getDates()
    {
        return ['created_at', 'updated_at', 'date'];
    }

    /**
     * @param                $query
     * @param \Carbon\Carbon $date
     *
     * @return mixed
     */
    public function scopeAfter($query, \Carbon\Carbon $date)
    {
        return $query->where('date', '>=', $date->format('Y-m-d'));
    }

    /**
     * @param                $query
     * @param \Carbon\Carbon $date
     *
     * @return mixed
     */
    public function scopeBefore($query, \Carbon\Carbon $date)
    {
        return $query->where('date', '<=', $date->format('Y-m-d'));
    }

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

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

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

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

}