In the next post, I’m going to show what polymorphic relationships are and how to use them. Since, like Eloquent models themselves, relationships also serve as powerful. You can define these relationships like this: // app/Models/User.php public function address() Eloquent relationships are defined as methods on your Eloquent model classes. We may have this table structure: users id - integer name - string email - string password - string address id - integer country - string city - string user_id - integer to one (has one)įor this example, we have two models: a User and an Address. A relationship, in the context of the database, is a relation or link between two tables via primary key and reference key. When accessing Eloquent relationships as properties, the relationship data is lazy. In this post, I’m going to show how every relationship works. When accessing Eloquent relationships as properties, the relationship data is 'lazy loaded'. namespace AppModels use IlluminateDatabaseEloquentModel. Although most are easy to understand, there are a few more complicated ones. Relationships define how your models (tables) are connected. In addition to retrieving records from the database table, Eloquent models allow you to insert, update, and delete records from the table as well. This is an example of an Eloquent relationship. When using Eloquent, each database table has a corresponding 'Model' that is used to interact with that table.

Will give you the name of the post’s author. Eloquent relationships are defined as methods on your Eloquent model classes. It is an API for interacting with your database, and it has a very nice and easy-to-remember syntax. In my opinion, Eloquent is one of the most powerful features of Laravel. Car belongs to one owner or the owner has only one car.Eloquent relationships explained (with examples) For example, a person has only one car which belongs to its owner.Įxample: We have 2 models ( OWNER and CAR) and two tables ( owners and cars). For example, a blog post may have an infinite number of comments. Eloquent makes managing and dealing with these relationships straight-forward and supports many different types of relationships:Ī one-to-one relationship is a very basic relation. A one-to-many relationship is used to define relationships where a single model owns any amount of other models.

Pivot tables and many-to-many relationships. For example, a student in college could have several subjects, a bank account is related to the user who owns that. 1 topic of Laravel-related questions I get is about Eloquent. Database tables are often related to one another. Eloquent trong laravel s giúp chúng ta qun lý và làm vic vi các quan h gia các tables vi nhau mt cách d dàng.