laravel restore soft delete

Laravel is a very popular PHP framework that provides many convenient features to speed up developers' development. One very important feature is soft deletion, which allows us to mark records in the database as deleted without actually deleting the records from the database. This method is useful for preserving data history and preventing accidental deletion. However, sometimes we need to restore these deleted records, so how to achieve this in Laravel?

First, we need to confirm that our data model uses the soft delete function. Usually, we can use the SoftDeletes trait in the model to enable soft deletion functionality. For example, we can write this in the User model:

use IlluminateDatabaseEloquentModel;
use IlluminateDatabaseEloquentSoftDeletes;

class User extends Model
{
    use SoftDeletes;

    protected $dates = ['deleted_at'];
}

Then we can use the soft delete function in this model. Now, we can perform a delete operation in the database, for example:

$user = User::find(1);
$user->delete();

After completing this operation, we can use the withTrashed method to obtain the soft-deleted user record. For example:

$deletedUsers = User::withTrashed()
                ->whereNotNull('deleted_at')
                ->get();

Now we can access the deleted_at attribute of each soft deleted user record to know when it was deleted. If we need to restore a deleted user record, we can use the restore method. For example, assuming we want to restore the user record with id 1, we can write like this:

$user = User::withTrashed()
            ->where('id', 1)
            ->first();

$user->restore();

It is important to realize that when performing the restore operation, we need to first use the withTrashed method on the soft deleted data model Retrieved from the database. This is because only soft-deleted data can be recovered.

In addition, we can also use the restoreOrFail method, which can throw an exception when the restore fails. For example:

$user = User::withTrashed()
            ->where('id', 1)
            ->first();

try {
    $user->restoreOrFail();
} catch (Exception $e) {
    // 恢复失败
}

Also note that if we are trying to restore a soft-deleted data model that does not exist, an exception will be thrown. So, to avoid this we can use restoreOnFail method which will return false on restore failure. For example:

$user = User::withTrashed()
            ->where('id', 1)
            ->first();

if (!$user->restoreOnFail()) {
    // 恢复失败
}

Overall, it is very simple to recover soft delete using Laravel. Just follow the steps above. However, we need to pay attention to some details, such as using the withTrashed method to obtain deleted records, using the restore method to restore soft-deleted records, etc. These are all things to pay attention to when using the soft delete function in Laravel.

To summarize, the steps to restore soft deletion are as follows:

1. Confirm that the data model has turned on the soft deletion function
2. Use the withTrashed method to obtain soft deleted records
3. Use the restore method to restore soft-deleted records
4. You can use the restoreOrFail method to throw an exception, or use the restoreOnFail method to return false to ensure that the restore operation is successful

Hope this This article can help readers better understand how to restore soft deletion in Laravel.

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