Laravel Eloquent Serialization：如何重命名属性？
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Laravel Eloquent Serialization: how to rename property?
提问by DrXCheng
For example, I have User model extending Eloquent. In the database table, the column name is user_id.
例如，我有扩展 Eloquent 的用户模型。在数据库表中，列名是user_id。
How do I output the result as 'userId' after reading?
阅读后如何将结果输出为“userId”？
回答by lukasgeiter
Add single "aliases" using attribute accessors
使用属性访问器添加单个“别名”
You can use attribute accessorsto create "new attributes":
您可以使用属性访问器来创建“新属性”：
public function getUserIdAttribute(){
return $this->attributes['user_id'];
}
This allows you to access the value this way: $user->userId
这允许您以这种方式访问该值： $user->userId
Now let's add the value to array / JSON conversion:
现在让我们将值添加到数组/JSON 转换中：
protected $appends = array('userId');
And finally hide the ugly user_id:
最后隐藏丑陋user_id：
protected $hidden = array('user_id');
Convert all attribute names when converting to array / JSON
转换为数组/JSON 时转换所有属性名称
You can also use toArray()to change the all attribute names when converting the model into an array or JSON string.
toArray()在将模型转换为数组或 JSON 字符串时，您还可以使用来更改所有属性名称。
public function toArray(){
$array = parent::toArray();
$camelArray = array();
foreach($array as $name => $value){
$camelArray[camel_case($name)] = $value;
}
return $camelArray;
}
回答by melson.jao
I do it in this way.
我是这样做的。
protected $remap_attrs = ['old_name' => 'new_name'];
public function toArray(){
$array = parent::toArray();
foreach($this->remap_attrs as $key => $new_key) {
if(array_key_exists($key, $array)) {
$array[$new_key] = $array[$key];
unset($array[$key]);
}
}
return $array;
}
