Laravel Eloquent after save id becomes 0 - php

Question

It's a table migrated from https://github.com/lucadegasperi/oauth2-server-laravel
In the table oauth_clients, the field data type of id is varchar(40), not int.
$name = Input::get('name');
$id = str_random(40);
$secret = str_random(40);
$client = new oauthClient;
$client->name = $name;
$client->id = $id;
$client->secret = $secret;
$client->save();
After save(); the $client->id become '0', not the string I assigned.
That makes the following relation table save fail.
$endpoint = new OauthClientEndpoint(array('redirect_uri' => Input::get('redirect_uri));
$client->OauthClientEndpoint()->save($endpoint);
I checked the $client->id: after save, it becomes 0 and I get an error including this one:
(SQL: insert into `oauth_client_endpoints` (`redirect_uri`, `client_id`, `updated_at`, `created_at`) values (http://www.xxxxx.com, 0, 2014-09-01 11:10:16, 2014-09-01 11:10:16))
I manually saved an endpoint to prevent this error for now. But how do I resolve this issue?
Here's my model:
class OauthClient extends Eloquent {
protected $table = 'oauth_clients';
public function OauthClientEndpoint(){
return $this->hasOne('OauthClientEndpoint', 'client_id', 'id');
}
}
class OauthClientEndpoint extends Eloquent {
protected $table = 'oauth_client_endpoints';
protected $fillable = array('redirect_uri');
public function OauthClient(){
return $this->belongsTo('OauthClient', 'client_id', 'id');
}
}
class CreateOauthClientsTable extends Migration {
public function up() {
Schema::create('oauth_clients', function (Blueprint $table) {
$table->string('id', 40);
$table->string('secret', 40);
$table->string('name');
$table->timestamps();
$table->unique('id');
$table->unique(array('id', 'secret'));
});
}
public function down() {
Schema::drop('oauth_clients');
}
}
class CreateOauthClientEndpointsTable extends Migration {
public function up() {
Schema::create('oauth_client_endpoints', function (Blueprint $table) {
$table->increments('id');
$table->string('client_id', 40);
$table->string('redirect_uri');
$table->timestamps();
$table->foreign('client_id')
->references('id')->on('oauth_clients')
->onDelete('cascade')
->onUpdate('cascade');
});
}
public function down() {
Schema::table('oauth_client_endpoints', function ($table) {
$table->dropForeign('oauth_client_endpoints_client_id_foreign');
});
Schema::drop('oauth_client_endpoints');
}
}

Answer 1

When you are setting your own ID and not using auto_increment be sure to add public $incrementing = false; to that model. In your case you want:
class OauthClient extends Eloquent {
public $incrementing = false;
protected $table = 'oauth_clients';
public function OauthClientEndpoint(){
return $this->hasOne('OauthClientEndpoint', 'client_id', 'id');
}
}
This is a tiny red block in the huge Laravel documentation:
Note: Typically, your Eloquent models will have auto-incrementing keys. However, if you wish to specify your own keys, set the incrementing property on your model to false.