如何使用Laravel重写记录集中的值？

Question

For example, this way get Photo records:

return DB::table('photos')->skip(1)->take(2)->get();

Return these data:

+----+--------+------------+
| id |  name  |   photo    |
|----|--------|------------|
| 1  | flower | flower.jpg |
| 2  | grass  | grass.jpg  |
...

Want to rewrite photo column data as this record set:

+----+--------+------------------------------+
| id |  name  |          photo               |
|----|--------|------------------------------|
| 1  | flower |  https://my-site/flower.jpg  |
| 2  | grass  |  https://my-site/grass.jpg   |
...

Is there a simple way to do?

Answer 1

使用CONCAT方法：

DB::table('photos')->select('id','name',DB::raw("CONCAT('https://my-site/', 'photo') as photo")->skip(1)->take(2)->get();

Answer 2

You could make use of Accessor

Define this method in your Photo model

/**
 * Get the photo's path.
 *
 * @param  string  $value
 * @return string
 */
public function getPhotoAttribute($value)
{
    return asset($value);
}

then you could try

return Photo::skip(1)->take(2)->get();