提前感谢解释在管理面板中的Wordpress帖子编辑器中创建多个内容块的想法。我在尝试之前尝试搜索类似的线程，但找不到任何答案。 我需要的是创建一个额外的内容字段和默认的内容字段。我需要实现哪些功能？我在wordpress插件库中找到了一个插件“Multiple Content Blocks”，但我相信这个简单的任务需要更少的代码。我希望我已经很好地解释了我需要的东西。再次感谢！
答案 0 :(得分：1)
首先将内容编辑器添加到Wordpress编辑页面要比听起来要难得多，所以如果您不熟悉保存/更新周期和元数据库，那么我建议使用插件。我喜欢“高级自定义字段”，但我确信“多个内容块”也很好。
无论如何，我在这里概述了一般的Custom Meta Box解决方案。所以我们走了：
wp_editor()函数是我们用来创建编辑器实例的函数。 http://codex.wordpress.org/Function_Reference/wp_editor
但是，我会在元框内调用它 http://codex.wordpress.org/add_meta_box
以下是一些示例代码，用于创建包含内容编辑器的元框。
此插件将内容编辑器的值存储在名为_hurtigtech_extra_content的自定义字段中，该字段在更新帖子/页面时保存。
您可以将此插件放入插件文件夹/wp-content/plugins/并在其中播放。如果你需要帮助，请随意发表评论，我知道这是很多代码所以插件可能是最好的，但如果你有信心，这也是一个很好的基线。
<?php
/**
* Plugin Name: Extra Metabox Content Editor
*/
/**
* Adds a box to the main column on the Post and Page edit screens.
*/
function hurtigtech_add_custom_box() {
$screens = array( 'post', 'page' );
foreach ( $screens as $screen ) {
add_meta_box(
'hrutigtech_extra_content_section',
__( 'My Post Extra Content', 'hurtigtech_translations' ),
'hurtigtech_inner_custom_box',
$screen
);
}
}
add_action( 'add_meta_boxes', 'hurtigtech_add_custom_box' );
/**
* Prints the box content.
*
* @param WP_Post $post The object for the current post/page.
*/
function hurtigtech_inner_custom_box( $post ) {
// Add an nonce field so we can check for it later.
wp_nonce_field( 'hurtigtech_inner_custom_box', 'hurtigtech_inner_custom_box_nonce' );
/*
* Use get_post_meta() to retrieve an existing value
* from the database and use the value for the form.
*/
$value = get_post_meta( $post->ID, '_hurtigtech_extra_content', true );
echo '<br />';
wp_editor( $value, "hurtigtech_extra_content_editor");
}
/**
* When the post is saved, saves our custom data.
*
* @param int $post_id The ID of the post being saved.
*/
function hurtigtech_save_postdata( $post_id ) {
/*
* We need to verify this came from the our screen and with proper authorization,
* because save_post can be triggered at other times.
*/
// Check if our nonce is set.
if ( ! isset( $_POST['hurtigtech_inner_custom_box_nonce'] ) )
return $post_id;
$nonce = $_POST['hurtigtech_inner_custom_box_nonce'];
// Verify that the nonce is valid.
if ( ! wp_verify_nonce( $nonce, 'hurtigtech_inner_custom_box' ) )
return $post_id;
// If this is an autosave, our form has not been submitted, so we don't want to do anything.
if ( defined( 'DOING_AUTOSAVE' ) && DOING_AUTOSAVE )
return $post_id;
// Check the user's permissions.
if ( 'page' == $_POST['post_type'] ) {
if ( ! current_user_can( 'edit_page', $post_id ) )
return $post_id;
} else {
if ( ! current_user_can( 'edit_post', $post_id ) )
return $post_id;
}
/* OK, its safe for us to save the data now. */
// Sanitize user input.
$mydata = sanitize_text_field( $_POST['hurtigtech_extra_content_editor'] );
// Update the meta field in the database.
update_post_meta( $post_id, '_hurtigtech_extra_content', $mydata );
}
add_action( 'save_post', 'hurtigtech_save_postdata' );
注意：内容框背景存在样式问题。这需要添加到editor-style.css文件以修复它。
.hurtigtech_extra_content_editor {
background: #fff;
}
答案 1 :(得分：1)
老问题，但由于这是我谷歌搜索中的第一次点击，我将添加我的方法 - 接受的答案有几个主要问题，主要是：
wp_editor()不安全时。sanitize_text_field()清理html（删除所有html！）此文件可以放入主题文件夹或functions.php的底部，所有帖子和页面都会有一个额外的编辑器。
如果使用单独的文件，请记住将其包含在functions.php中：
include __DIR__ . '/my_extra_content.php';
显然你应该搜索＆＃34;我的_＆＃34;并用有意义的东西取代 - ＆＃34; extra_content＆＃34;也可能有点过于通用，所以想出一些更具异国情调的东西。
<?php
//Use a class to avoid conflicts
class my_extra_content {
/**
* Called on instantiation, this is where we hook functions
*/
function __construct() {
/* Using add_meta_box seems like the correct way to do this, but since
* we're inserting a TinyMCE editor we cannot (should not) - from codex:
* ---
* Once instantiated, the WYSIWYG editor cannot be moved around in the
* DOM. What this means in practical terms, is that you cannot put it in
* meta-boxes that can be dragged and placed elsewhere on the page.
* Instead use 'edit_page_form' (for pages) or 'edit_form_advanced'
* (for other post types).
*/
add_action( 'edit_page_form', array($this, 'my_extra_content_custom_box') );
add_action( 'edit_form_advanced', array($this, 'my_extra_content_custom_box') );
/* This one saves the content */
add_action( 'save_post', array($this, 'save_postdata' ));
}
/**
* This actually outputs the tinyMCE box
*/
function my_extra_content_custom_box( $post ) {
/* Always use a nonce */
wp_nonce_field( 'my_extra_content_custom_box', 'my_extra_content_custom_box_nonce' );
/* Get the content */
$content = self::get_content($post);
/* Insert the editor */
wp_editor( $content, "my_extra_content");
}
/**
* Saves the content
*/
function save_postdata( $post_id ) {
/* Check that nonce was sent */
if ( ! isset( $_POST['my_extra_content_custom_box_nonce'] ) ) {
return $post_id;
}
/* Check that nonce is valid */
if ( ! wp_verify_nonce( $_POST['my_extra_content_custom_box_nonce'], 'my_extra_content_custom_box' ) ) {
return $post_id;
}
/* Don't try to do anything on autosave (custom fields aren't included) */
if ( defined( 'DOING_AUTOSAVE' ) && DOING_AUTOSAVE ) {
return $post_id;
}
/* Check permissions */
if ( 'page' === get_post_type( $post_id ) ) {
if ( ! current_user_can( 'edit_page', $post_id ) ) {
return $post_id;
}
} else {
if ( ! current_user_can( 'edit_post', $post_id ) ) {
return $post_id;
}
}
/* Sanitize content - we don't use sanitize_text_field() as it strips all
* HTML, which is clearly not wanted with a wysiwyg - wp_kses_post()
* should do what we want */
$sane_content = wp_kses_post( $_POST['my_extra_content'] );
/* Save content - notice the underscore in the meta name - it hides the
* field from the "normal" custom field editor */
update_post_meta( $post_id, '_my_extra_content_content', $sane_content );
}
/**
* Static function makes it easy to get the value wherever you need it.
* - for example:
* $my_extra_content = my_extra_content::get_content()
*/
static function get_content($post_or_post_id = null) {
/* First find the post id */
$post_id = false;
if ($post_or_post_id === null) {
/* If nothing was passed, try to get it from global post object */
global $post;
$post_or_post_id = $post->ID;
}
if (is_a($post_or_post_id, 'WP_Post')) {
/* If a post object was passed, or we're using the global $post */
$post_id = $post_or_post_id->ID;
} elseif (is_numeric($post_or_post_id)) {
/* If a number (hopefully a post id) was passed */
$post_id = intval($post_or_post_id);
}
/* Try to get the value */
$value = get_post_meta($post_id, '_my_extra_content_content', true );
/* If we didn't get a valid string return an empty one */
if (!is_string($value)) {
return '';
}
return $value;
}
/**
* Static function to very easily output the content in a template
* - for example:
* my_extra_content::echo_content()
*/
static function echo_content( $post_or_post_id = null ) {
$output = self::get_content($post_or_post_id);
/* do_shortcode makes sure we support shortcodes (if that is wanted) */
// $output = do_shortcode($output);
/* the_content filter will apply all normal filters (including
* do_shortcode) to the content (not required!) */
$output = apply_filters( 'the_content', $output);
/* print it */
echo $output;
}
}
/* Instantiate the class - because of the static functions used to fetch the
* content we won't need to ever use this variable, we just need __construct()
* to be called, so our hooks are added */
$extra_content_throwaway_var = new my_extra_content();