<?php
namespace ProVM\Crypto;

use ProVM\Common\Alias\Model;
use ProVM\Common\Define\Model\DateTime as DT;

/**
 * @property int $id
 * @property \DateTime $date_time
 * @property Coin $coin_id
 * @property Wallet $wallet_id
 * @property float $amount
 * @property float $value
 * @property Coin $unit_id
 */
class Transaction extends Model {
  use DT;

  protected static $_table = 'transactions';
  protected static $fields = ['date_time', 'coin_id', 'wallet_id', 'amount', 'value', 'unit_id'];

  protected $coin;
  public function coin() {
    if ($this->coin === null) {
      $this->coin = $this->childOf(Coin::class, [Model::SELF_KEY => 'coin_id']);
    }
    return $this->coin;
  }
  protected $wallet;
  public function wallet() {
    if ($this->wallet === null) {
      $this->wallet = $this->childOf(Wallet::class, [Model::SELF_KEY => 'wallet_id']);
    }
    return $this->wallet;
  }
  protected $unit;
  public function unit() {
    if ($this->unit === null) {
      $this->unit = $this->childOf(Coin::class, [Model::SELF_KEY => 'unit_id']);
    }
    return $this->unit;
  }
}