php - Laravel Eloquent : Model attribute with conditional concatenation

Question

我有一个表(比如 myreferencetable)，名称列表为..say :

id    |    name   |   abbrv
- - - - - - - - - - - - - - - - -
1     | ABCDEF    | abc
2     | TestState |
3     | UVWXYZ    | xyz

在我的模型中，我为模型创建了一个属性:

protected $appends = [
        'full_name'
    ];

现在，我想查询数据库，以便获得详细信息:

[
 { 
   "name" : ABCDEF
   "full_name" : ABCDEF (abc)
 },
 {
   "name" : TestState,
   "full_name" : TestState
 },
 {
   "name" : UVWXYZ,
   "full_name" : UVWXYZ (xyz)
 }
]

即字符串连接:

• //必填

• ( < abbrv > )//如果不为空

现在，我的查询是:

public function getFullNameAttribute()
    {

        return  MyReferenceTable::select(DB::raw('concat(name," (", abbrv, ")")'));
    }

但它返回:

[
 { 
   "name" : ABCDEF
   "full_name" : {}
 },
 {
   "name" : TestState,
   "full_name" : {}
 },
 {
   "name" : UVWXYZ(xyz)
   "full_name" : {}
 }
]

I need to return name + ["(abbrv)"] // where [value] = if not null

Answer 1

试试这个方法

public function getFullNameAttribute()
{
    return $this->name . ($this->abbrv ? ' (' . $this->abbrv . ')' : '');
}