本文介绍了在口才中定义自定义属性的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
我在数据库中有3个不同的字段:city
,state
,country
.如何在Eloquent中定义另一个属性,以从这3个字段中返回一个字符串?
I have 3 different fields in the database: city
, state
, country
. How do I define another attribute in Eloquent to return one string from those 3 fields?
第一种方法,但无效:
protected $address = "";
public function getAddress() : string {
return $this->city . $this->state . " - " . $this->country;
}
推荐答案
如果您想要模型中未定义的新属性,则需要将该属性附加到模型中.
If you want a new attribute which is not defined in model, you need to append that attribute to your model.
/**
* The accessors to append to the model's array form.
*
* @var array
*/
protected $appends = ['address'];
并定义您的属性方法:
/**
* Get the address.
*
* @return string
*/
public function getAddressAttribute()
{
return $this->city . $this->state . " - " . $this->country;
}
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