How to Sync an Array with Multiple Pivot Fields in Laravel?

Syncing an Array with Additional Pivot Fields in Laravel

In Laravel, the sync() method allows you to manage the many-to-many relationship between models. While the documentation provides examples for syncing a single pivot row, it does not explicitly address how to associate custom pivot data with multiple synced rows.

The solution lies in specifying an array of pivot data for each related model that you want to sync. By providing a key value pair where the key is the related model's ID and the value is an array of pivot field values, you can associate additional pivot data with each row being synced.

For example, consider a User model that has a many-to-many relationship with a Role model. The pivot table for this relationship has a expires field. If you want to sync three roles with the user, each with a different expires value, you can do so as follows:

<code class="php">$user->roles()->sync([
    1 => ['expires' => true],
    2 => ['expires' => false],
    3 => ['expires' => null],
]);</code>

This will sync the user with three role IDs, and associate the specified expires values with each row in the pivot table.

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