在 Laravel 6 中,遍历 模型对象 时,赋值属性后,未更新
1、打印当前对象,其属性 [architecture] => 2.0 。如图1
2、代码实现如下
$wpTheme->architecture = '2.0';
print_r($wpTheme);
echo "\n";
echo $wpTheme->architecture;
exit;
unset($wpTheme->themeInstallation);
$themes[] = $wpTheme;
3、打印对象 $wpTheme,其属性 [architecture] => 2.0。打印 $wpTheme->architecture,其值为 1.0。不符合预期。如图2
4、最后找到了原因,模型文件中的设置的影响,将 architecture 值给覆盖了。
protected $appends = [
'created_at',
'updated_at',
'cover_url',
'alias',
'architecture',
'is_fission',
];
/**
* 获取主题架构版本, 默认为1.0
*
* @return void
*/
public function getArchitectureAttribute()
{
$config = config('theme.' . $this->alias);
return isset($config['architecture']) ? $config['architecture']: '1.0';
}
5、最终决定在查询列表时,使用 ->toArray() 方法,然后遍历时,$wpTheme 已经为数组。如图3
6、代码实现如下
$wpTheme['architecture'] = '2.0';
unset($wpTheme['theme_installation']);
$themes[] = $wpTheme;
7、查看响应结果,符合预期。如图4
![打印当前对象,其属性 [architecture] => 2.0](https://www.shuijingwanwq.com/wp-content/uploads/2022/06/1-13.png)
![打印对象 $wpTheme,其属性 [architecture] => 2.0。打印 $wpTheme->architecture,其值为 1.0。不符合预期](https://www.shuijingwanwq.com/wp-content/uploads/2022/06/2-12.png)


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