dongtang6681 2017-02-15 15:37
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在多个模型中使功能可用的正确方法

In Laravel I have the following model:

class Product extends Model {}

which contains the function:

public function setThumbnailAttribute($value) {}

I have multiple models which should contain the same setThumbnailAttribute() function. What is the correct way to do this using Laravel or basic PHP functionality?

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  • douxu2467 2017-02-15 16:55
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    1. Use polymorphism if this models have multiple realizations of this method. However, if method universal for models, choose second.

      class Product extends AbstractThumbnailedModel
      {
          public function setThumbnailAttribute(Thumbnail $thumb)
          {
              // implement setter for Product
          }
      } 
      
      class AnotherProduct extends AbstractThumbnailedModel
      {
          public function setThumbnailAttribute(Thumbnail $thumb)
          {
              // implement setter for AnotherProduct
          }
      } 
      
      abstract class AbstractThumbnailModel extends Model 
      {
          abstract public function setThumbnailAttribute(Thumbnail $thumb);
      }
      
    2. Use traits. Create trait Thumbnailed and use it when needed in models.

      trait Thumbnailed 
      {
           public function setThumbnailedAttribute(Thumbnail $thumb)
           {
               // here implementaition which will share with needed models
           }
      }
      
      class Product extends Model
      {
          use Thumbnailed;
          // Use it!
      } 
      
      class AnotherProduct extends Model
      {
          use Thumbnailed;
          // same method implementation. Just use it!
      
      } 
      

    P.S. Sorry for Google translate

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