我认为这行代码的周点是：
Eloquent determines the default foreign key name by examining the name of the relationship method and suffixing the method name with _id. However, if the foreign key on the Comment model is not post_id, you may pass a custom key name as the second argument to the belongsTo method:...
在这些关系模型中,最难实现的就是Many-To-Many这种多对多的关系,但是我们这个简单地博客并没有用户管理,也就是并没有开放让用户注册,所以我们在这里还是要挑战一下难度,实现Articles-To-Tags这种Many-To-Many关系,借助Laravel的强大的Eloquent,实现这个功能还是比较顺心的。至于一对一和一对多这两种关系,可以触类旁通。
A one-to-many relationship is used to define relationships where a single model is the parent to one or more child models. For example, a blog post may have an infinite number of comments. Like all other Eloquent relationships, one-to-many relationships are defined by defining a method on...
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}classSpecialtyextendsEloquent{publicfunctionlessons(){return$this->hasMany('Lesson'); }publicfunctiongroups(){return$this->hasMany('Group'); } } I need get additional fields in Group model look like that Group - Eloquent model name -stringlessons - collection of Lesson models of Group Special...
Laravel eloquent: Only retriev entries where relationship has entries (join) Hi,I have a products and a products_marks table. The products_marks table contains a user_id and a product_id and represents all products which are marked/saved by a user. So, this is more...
select * from phones where user_id = 1Take note that Eloquent assumes the foreign key of the relationship based on the model name. In this case, Phone model is assumed to use a user_id foreign key. If you wish to override this convention, you may pass a second argument to the hasOne...
我第一次寻找所谓的 Laravel 框架的时候,我的其中一个目标就是要找:利用最简单的操作数据库的方法。后来目标就停在了 Eloquent ORM 上。 今天说一说 Eloquent ORM 的一些不易被发现和使用的方法。 1. 递增和递减函数 平时这么写: $article = Article::find($article_id); ...
Sometimes you may wish to throw an exception if a model is not found. This is particularly useful in routes or controllers. The findOrFail and firstOrFail methods will retrieve the first result of the query; however, if no result is found, a Illuminate\Database\Eloquent\ModelNotFoundException...