How to insert one to many relation in laravel?

by muriel.schmidt , in category: PHP Frameworks , 24 days ago

How to insert one to many relation in laravel?

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1 answer

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by larissa , 22 days ago

@muriel.schmidt 

To insert a one-to-many relation in Laravel, follow these steps:

  1. Make sure you have created the necessary database tables for both the "one" and "many" sides of the relationship. For example, if you have a "users" table and a "posts" table, where each user can have multiple posts, make sure you have a foreign key column in the "posts" table that references the "id" column in the "users" table.
  2. Define the relationship in the corresponding models. In this example, you would define a "hasMany" relationship in the User model and a "belongsTo" relationship in the Post model.
  3. Create a new instance of the "one" model and save it to the database. For example, to create a new user:
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$user = new User;
$user->name = 'John Doe';
$user->email = '[email protected]';
$user->save();


  1. Create and save instances of the "many" model related to the "one" model. For example, to create a new post related to the user created in step 3:
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$post = new Post;
$post->title = 'Hello World';
$post->content = 'This is my first post';
$user->posts()->save($post);


Note that we are using the "posts()" method to access the relationship defined in the User model and save the post related to the user.

  1. Verify that the data has been successfully inserted by retrieving the relationship. For example, you can retrieve all posts related to a user:
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$posts = $user->posts;


That's it! You have successfully inserted a one-to-many relation in Laravel.