Demonstrate how to add a new WooCommerce integration.

class-wc-integration-demo-integration.php

<?php
/**
 * Integration Demo Integration.
 *
 * @package  WC_Integration_Demo_Integration
 * @category Integration
 * @author   Patrick Rauland
 */

if ( ! class_exists( 'WC_Integration_Demo_Integration' ) ) :

class WC_Integration_Demo_Integration extends WC_Integration {

	/**
	 * Init and hook in the integration.
	 */
	public function __construct() {
		global $woocommerce;

		$this->id                 = 'integration-demo';
		$this->method_title       = __( 'Integration Demo', 'woocommerce-integration-demo' );
		$this->method_description = __( 'An integration demo to show you how easy it is to extend WooCommerce.', 'woocommerce-integration-demo' );

		// Load the settings.
		$this->init_form_fields();
		$this->init_settings();

		// Define user set variables.
		$this->api_key          = $this->get_option( 'api_key' );
		$this->debug            = $this->get_option( 'debug' );

		// Actions.
		add_action( 'woocommerce_update_options_integration_' .  $this->id, array( $this, 'process_admin_options' ) );

	}

	/**
	 * Initialize integration settings form fields.
	 */
	public function init_form_fields() {
		$this->form_fields = array(
			'api_key' => array(
				'title'             => __( 'API Key', 'woocommerce-integration-demo' ),
				'type'              => 'text',
				'description'       => __( 'Enter with your API Key. You can find this in "User Profile" drop-down (top right corner) > API Keys.', 'woocommerce-integration-demo' ),
				'desc_tip'          => true,
				'default'           => ''
			),
			'debug' => array(
				'title'             => __( 'Debug Log', 'woocommerce-integration-demo' ),
				'type'              => 'checkbox',
				'label'             => __( 'Enable logging', 'woocommerce-integration-demo' ),
				'default'           => 'no',
				'description'       => __( 'Log events such as API requests', 'woocommerce-integration-demo' ),
			),
		);
	}

}

endif;

woocommerce-integration-demo.php

<?php
/**
 * Plugin Name: WooCommerce Integration Demo
 * Plugin URI: https://gist.github.com/BFTrick/091d55feaaef0c5341d8
 * Description: A plugin demonstrating how to add a new WooCommerce integration.
 * Author: Patrick Rauland
 * Author URI: http://speakinginbytes.com/
 * Version: 1.0
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program. If not, see <http://www.gnu.org/licenses/>.
 *
 */

if ( ! class_exists( 'WC_Integration_Demo' ) ) :

class WC_Integration_Demo {

	/**
	* Construct the plugin.
	*/
	public function __construct() {
		add_action( 'plugins_loaded', array( $this, 'init' ) );
	}

	/**
	* Initialize the plugin.
	*/
	public function init() {

		// Checks if WooCommerce is installed.
		if ( class_exists( 'WC_Integration' ) ) {
			// Include our integration class.
			include_once 'class-wc-integration-demo-integration.php';

			// Register the integration.
			add_filter( 'woocommerce_integrations', array( $this, 'add_integration' ) );
		} else {
			// throw an admin error if you like
		}
	}

	/**
	 * Add a new integration to WooCommerce.
	 */
	public function add_integration( $integrations ) {
		$integrations[] = 'WC_Integration_Demo_Integration';
		return $integrations;
	}

}

$WC_Integration_Demo = new WC_Integration_Demo( __FILE__ );

endif;

Hi,

There's something wrong with the way get_option is used inside __construct. If I save the API key (or any option) the constructor returns the old value before save. Only when the page is refreshed again after saving the options does the new value reflect in the constructor.

For example:

The API key option is saved as 1234
I change the value of the API key to 4567 and click save.

var_dump($this->api_key) inside __construct returns 1234
var_dump($this->api_key) inside admin_options() returns 4567

If I then refresh the page by pressing F5, var_dump($this->api_key) inside __construct returns 4567 as expected. But only after page refresh.

Any idea on what could be wrong here?