嗨，谢谢你的光临。 我目前正在为wordpress编写插件。我需要一个特定页面内的按钮，触发电子邮件通知。我认为使用woocommerce电子邮件功能会很好，因为它是一封客户电子邮件，我也想使用woocommerce-email-templates。
在我的插件中，我通过
包含我的课程扩展function add_wc_custom_email( $email_classes ) {
require( 'includes/class-wc-custom-email.php' );
$email_classes['WC_Custom_Email'] = new WC_Custom_Email();
return $email_classes;
}
add_filter( 'woocommerce_email_classes', 'add_wc_custom_email' );
//if i write a print_r(something) inside this function, just to alert if this filters hits, i don't see a result, so i think the error is here.. the filter gets hit under woocommerce->settings->emails but not, if you simply load a page in the backend
在文件类-wc-custom-email.php中我有我的类扩展
class WC_Custom_Email extends WC_Email {
public function __construct() {
…
}
public function mail( $var1, $var2, $var3 ) {
…
}
}
我的ajax看起来像这样
( function( $ ) {
$('#button1').on( "click", function() {
$.post(
ajaxurl,
{
'action' : 'jnz_email_custom',
'page_id': '<?php the_ID(); ?>',
},
function ( response ) {
console.log( "triggered", response )
}
);
});
})(jQuery);
ajax处理程序看起来像这样
add_action('wp_ajax_jnz_email_custom', 'jnz_email_custom');
function jnz_email_custom() {
$message = email_custom( $_POST['page_id'] );
$response = array(
'what' => 'email_custom_triggered',
'action' => 'email custom triggered',
'id' => $_POST['page_id'],
'data' => $message,
);
$xmlResponse = new WP_Ajax_Response( $response );
$xmlResponse->send();
}
我用ajax触发的函数
function email_custom( $page_id = 2728 ) {
$field = get_field( 'something', $page_id )[0];
//get_field() is a function by plugin 'Advanced Custom Fields' and works fine
function somethingSomething( $field ) {
…
return $results;
}
foreach ( $results as $result ) :
$email = new WC_Custom_Email();
$email->mail( $result['details']['name'], $result['details']['email'], $result['something'] );
endforeach;
return json_encode( $results, JSON_UNESCAPED_UNICODE );
//this is the $xmlResponse i get from the ajax call and looks fine (but only works, if i uncomment the 'new WC_Custom_Email()' stuff. otherwise i see the "Fatal Error" thingy)
}
回复是：Fatal error: Class 'WC_Custom_Email' not found in …
所有功能都可以正常工作，如果我返回$results我会看到我想要的所有功能并且没有错误。
同样，当我将其更改为new WC_Email()时。所以我的猜测是，woocommerce功能没有加载到我的admin-＆gt; edit_page_xy屏幕。所以最大的问题是：我如何将woocommerce功能（或只有电子邮件功能）加载到我的插件中。??
希望这有点清楚，没有任何意义。我只知道很少的PHP，而且对oop来说是全新的。
答案 0 :(得分：8)
好的，所以这是一个野兽。
我已经编写了一个具有以下结构的演示插件：
kia-ajax-email.php
- includes
-- class-wc-test-ajax-email.php
-- js
-- script.js
-- templates
-- emails
-- test.php
-- plain
-- test.php
kia-ajax-email.php 此文件负责将脚本排入队列，添加自定义电子邮件类，在单个产品页面上创建按钮，以及将操作注册为触发WooCommerce电子邮件的操作：
<?php
/**
* Plugin Name: Test Ajax Email
* Plugin URI: http://stackoverflow.com/q/35018177/383847
* Description: Demo plugin for sending email via ajax
* Author: helgatheviking
* Author URI: http://www.kathyisawesome.com
* Version: 0.1
*
* License: GNU General Public License v3.0
* License URI: http://www.gnu.org/licenses/gpl-3.0.html
*
*/
if ( ! defined( 'ABSPATH' ) ) exit; // Exit if accessed directly
/**
* get plugin path
*
* @since 0.1
*/
function kia_ajax_email_plugin_path(){
return untrailingslashit( plugin_dir_path( __FILE__ ) );
}
/**
* Add a custom email to the list of emails WooCommerce should load
*
* @since 0.1
* @param array $email_classes available email classes
* @return array filtered available email classes
*/
function kia_add_custom_email( $email_classes ) {
// include our custom email class
require_once( 'includes/class-wc-test-ajax-email.php' );
// add the email class to the list of email classes that WooCommerce loads
$email_classes['WC_Test_Ajax_Email'] = new WC_Test_Ajax_Email();
return $email_classes;
}
add_filter( 'woocommerce_email_classes', 'kia_add_custom_email' );
/**
* Enqueue the scripts with apprpriate vars
*
* @since 0.1
*/
function kia_ajax_email_js(){
wp_enqueue_script( 'kia_ajax_email', plugins_url( 'js/script.js', __FILE__ ), array('jquery'), '1.0.0', true );
wp_localize_script( 'kia_ajax_email', 'kia_ajax_email', array(
'ajax_url' => WC()->ajax_url(),
'wc_ajax_url' => WC_AJAX::get_endpoint( "test_email" ) ) );
}
add_action( 'wp_enqueue_scripts', 'kia_ajax_email_js', 20 );
/**
* AJAX callback
*
* @since 0.1
*/
function kia_ajax_email_callback() {
$mailer = WC()->mailer();
do_action( 'kia_trigger_ajax_email' );
die('ajax finished'); // this is required to terminate immediately and return a proper response
}
add_action( 'wc_ajax_test_email', 'kia_ajax_email_callback' );
/**
* Register action as one that sends emails
*
* @since 0.1
*/
function kia_ajax_email_action( $actions ){
$actions[] = 'kia_trigger_ajax_email';
return $actions;
}
add_action( 'woocommerce_email_actions', 'kia_ajax_email_action' );
/**
* Add a dummy button to product page
*
* @since 0.1
*/
function kia_ajax_email_button(){
echo '<button class="email-trigger">' . __( 'Email Trigger', 'kia-ajax-email' ). '</button>';
}
add_action('woocommerce_before_single_product_summary', 'kia_ajax_email_button');
includes/class-wc-test-ajax-email.php <?php
if ( ! defined( 'ABSPATH' ) ) exit; // Exit if accessed directly
/**
* A custom Expedited Order WooCommerce Email class
*
* @since 0.1
* @extends \WC_Email
*/
class WC_Test_Ajax_Email extends WC_Email {
/**
* Set email defaults
*
* @since 0.1
*/
public function __construct() {
// set ID, this simply needs to be a unique name
$this->id = 'wc_text_ajax_email';
// this is the title in WooCommerce Email settings
$this->title = 'Test Ajax';
// this is the description in WooCommerce email settings
$this->description = 'Text emails are sent when ajax button is clicked';
// these are the default heading and subject lines that can be overridden using the settings
$this->heading = 'Test Ajax';
$this->subject = 'Test Ajax';
// these define the locations of the templates that this email should use, we'll just use the new order template since this email is similar
$this->template_html = 'emails/test.php';
$this->template_plain = 'emails/plain/test.php';
// Trigger on new paid orders
add_action( 'kia_trigger_ajax_email', array( $this, 'trigger' ) );
// Call parent constructor to load any other defaults not explicity defined here
parent::__construct();
// this sets the recipient to the settings defined below in init_form_fields()
$this->recipient = $this->get_option( 'recipient' );
// if none was entered, just use the WP admin email as a fallback
if ( ! $this->recipient )
$this->recipient = get_option( 'admin_email' );
}
/**
* Determine if the email should actually be sent and setup email merge variables
*
* @since 0.1
* @param int $order_id
*/
public function trigger() {
if ( ! $this->is_enabled() || ! $this->get_recipient() )
return;
// woohoo, send the email!
$this->send( $this->get_recipient(), $this->get_subject(), $this->get_content(), $this->get_headers(), $this->get_attachments() );
}
/**
* get_content_html function.
*
* @since 0.1
* @return string
*/
public function get_content_html() {
return wc_get_template_html( $this->template_html, array(
'email_heading' => $this->get_heading(),
'sent_to_admin' => false,
'plain_text' => false,
'email' => $this
),
'',
kia_ajax_email_plugin_path() . "/templates/" );
}
/**
* get_content_plain function.
*
* @since 0.1
* @return string
*/
public function get_content_plain() {
return wc_get_template_html( $this->template_plain, array(
'email_heading' => $this->get_heading(),
'sent_to_admin' => false,
'plain_text' => false,
'email' => $this
),
'',
kia_ajax_email_plugin_path() . "/templates/" );
}
/**
* Initialize Settings Form Fields
*
* @since 2.0
*/
public function init_form_fields() {
$this->form_fields = array(
'enabled' => array(
'title' => 'Enable/Disable',
'type' => 'checkbox',
'label' => 'Enable this email notification',
'default' => 'yes'
),
'recipient' => array(
'title' => 'Recipient(s)',
'type' => 'text',
'description' => sprintf( 'Enter recipients (comma separated) for this email. Defaults to <code>%s</code>.', esc_attr( get_option( 'admin_email' ) ) ),
'placeholder' => '',
'default' => ''
),
'subject' => array(
'title' => 'Subject',
'type' => 'text',
'description' => sprintf( 'This controls the email subject line. Leave blank to use the default subject: <code>%s</code>.', $this->subject ),
'placeholder' => '',
'default' => ''
),
'heading' => array(
'title' => 'Email Heading',
'type' => 'text',
'description' => sprintf( __( 'This controls the main heading contained within the email notification. Leave blank to use the default heading: <code>%s</code>.' ), $this->heading ),
'placeholder' => '',
'default' => ''
),
'email_type' => array(
'title' => 'Email type',
'type' => 'select',
'description' => 'Choose which format of email to send.',
'default' => 'html',
'class' => 'email_type',
'options' => array(
'plain' => __( 'Plain text', 'woocommerce' ),
'html' => __( 'HTML', 'woocommerce' ),
'multipart' => __( 'Multipart', 'woocommerce' ),
)
)
);
}
} // end \WC_Test_Ajax_Email class
js/script.js jQuery(document).ready(function($) {
$(".email-trigger").on("click", function(e) {
e.preventDefault();
$.ajax({
url: kia_ajax_email.wc_ajax_url.toString(),
type: 'POST',
data: {
'whatever': 1234
},
})
.done(function(data) {
if (console && console.log) {
console.log(data);
}
});
});
});
templates/emails/test.php和templates/emails/plain/test.php <?php
/**
* Test email
*
* This template can be overridden by copying it to yourtheme/woocommerce/emails/test.php.
*
* HOWEVER, on occasion WooCommerce will need to update template files and you (the theme developer).
* will need to copy the new files to your theme to maintain compatibility. We try to do this.
* as little as possible, but it does happen. When this occurs the version of the template file will.
* be bumped and the readme will list any important changes.
*
* @see http://docs.woothemes.com/document/template-structure/
* @author WooThemes
* @package WooCommerce/Templates/Emails
* @version 2.5.0
*/
if ( ! defined( 'ABSPATH' ) ) {
exit;
}
/**
* @hooked WC_Emails::email_header() Output the email header
*/
do_action( 'woocommerce_email_header', $email_heading, $email ); ?>
<p><?php _e( 'A test email is being sent', 'kia-ajax-email' ); ?></p>
<?php
/**
* @hooked WC_Emails::email_footer() Output the email footer
*/
do_action( 'woocommerce_email_footer', $email );
templates/emails/plain/test.php <?php
/**
* Test email
*
* This template can be overridden by copying it to yourtheme/woocommerce/emails/plain/test.php.
*
* HOWEVER, on occasion WooCommerce will need to update template files and you (the theme developer).
* will need to copy the new files to your theme to maintain compatibility. We try to do this.
* as little as possible, but it does happen. When this occurs the version of the template file will.
* be bumped and the readme will list any important changes.
*
* @see http://docs.woothemes.com/document/template-structure/
* @author WooThemes
* @package WooCommerce/Templates/Emails
* @version 2.5.0
*/
if ( ! defined( 'ABSPATH' ) ) {
exit;
}
echo "= " . $email_heading . " =\n\n";
echo "=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=\n\n";
_e( 'A test email is being sent', 'kia-ajax-email' );
echo "\n=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=\n\n";
echo apply_filters( 'woocommerce_email_footer_text', get_option( 'woocommerce_email_footer_text' ) );
单击按钮时会发送电子邮件。您将需要修改该按钮的位置，并且因为它有点慢（或者我的本地设置似乎如此）我肯定会推荐某种旋转器/通知操作正在发生。您还需要自定义通过ajax发送的数据以及最终如何在模板中发送数据。这只是一个概念证明。