WordPress防止发表重复标题的文章[代码版]

2017-12-01 2623点热度 2人点赞 0条评论

注释里我已经注明插件原作者，主要修改的地方是：将js转为script标签内容，等于消除一个请求，翻译也省了，换成中文。将下面代码复制粘贴到你主题的functions.php文件里面，这个不用解释了吧？

/**
 * 发表文章时禁止与已存在的标题相重复
 * Modify from Plugin: Duplicate Title Validate
 * Description: this plugin help , not allow publish Duplicate Title . 
 * Author: hasan movahed
 * Reviser: INLOJV
 * Version: 1.0
 * Author URI: http://www.wallfa.com
 * Reviser URI: http://www.inlojv.com
 */


// 发表文章页面，前端抓取标题并使用AJAX发送请求
add_action( 'admin_print_footer_scripts', 'duplicate_titles_enqueue_scripts', 100 );
function duplicate_titles_enqueue_scripts() {
?>
<script>
jQuery(function($){
   
    function checkTitleAjax(title, id,post_type) {
        var data = {
            action: 'title_checks',
            post_title: title,
            post_type: post_type,
            post_id: id
        };
        $.post(ajaxurl, data, function(response) {
            $('#message').remove();
            $('#poststuff').prepend('<div id=\"message\" class=\"updated below-h2 fade \"><p>'+response+'</p></div>');
        }); 
    };
    $('#title').change(function() {
        var title = $('#title').val();
        var id = $('#post_ID').val();
        var post_type = $('#post_type').val();
        checkTitleAjax(title, id,post_type);
    });

});
</script>
<?php
}
    


// 接收前端ajax参数
add_action('wp_ajax_title_checks', 'duplicate_title_checks_callback');
function duplicate_title_checks_callback(){ 
	global $wpdb;            
	$title = $_POST['post_title'];
	$post_id = $_POST['post_id']; 
	$titles = "SELECT post_title FROM $wpdb->posts WHERE post_status = 'publish' AND post_type = 'post' 
				AND post_title = '{$title}' AND ID != {$post_id} "; 
	$results = $wpdb->get_results($titles); 
	if($results) {
		echo "<span style='color:red'>". _( '此标题已存在，请换一个标题！' , '' ) ." </span>";
	} else {
		echo '<span style="color:green">'._('恭喜，此标题未与其他文章标题重复！' , '').'</span>';
	} 
	die();
}
 
// 检测后端标题并且避免同名文章更新草稿
add_action( 'publish_post','duplicate_titles_wallfa_bc' ) ;
function duplicate_titles_wallfa_bc( $post ){
	global $wpdb ;
	$title = $_POST['post_title'] ;
	$post_id = $post ; 
	$wtitles = "SELECT post_title FROM $wpdb->posts WHERE post_status = 'publish' AND post_type = 'post' 
						AND post_title = '{$title}' AND ID != {$post_id} " ; 
	$wresults = $wpdb->get_results( $wtitles ) ; 
	if ( $wresults ){
		$wpdb->update( $wpdb->posts, array( 'post_status' =>
				'draft' ), array( 'ID' => $post ) ) ;
        $arr_params = array( 'message' => '10', 'wallfaerror' => '1' )  ;      
		$location = add_query_arg( $arr_params , get_edit_post_link( $post , 'url' ) ) ;
		wp_redirect( $location  ) ;        
        exit ;
	}
}
 
 
 
/// 文章提交更新后的提示
add_action( 'admin_notices', 'not_published_error_notice' );   
function not_published_error_notice() {
    if(isset($_GET['wallfaerror']) == 1 ){
	   ?>
	   <div class="updated">
	   <p style='color:red' ><?php _e('貌似已经存在相同标题的文章，若您使用了文章别名作为固定链接，则可以通过修改本文的固定链接来使标题不再重复！' , '') ?></p>
	   </div>
	   <?php
	}
}
     
 
 
// 禁用自动保存
add_action( 'wp_print_scripts', 'disable_autosave' ) ;
function disable_autosave(){
	wp_deregister_script( 'autosave' ) ;
}

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/**

* 发表文章时禁止与已存在的标题相重复

* Modify from Plugin: Duplicate Title Validate

* Description: this plugin help , not allow publish Duplicate Title .

* Author: hasan movahed

* Reviser: INLOJV

* Version: 1.0

* Author URI: http://www.wallfa.com

* Reviser URI: http://www.inlojv.com

// 发表文章页面，前端抓取标题并使用AJAX发送请求

add_action( 'admin_print_footer_scripts', 'duplicate_titles_enqueue_scripts', 100 );

function duplicate_titles_enqueue_scripts() {

jQuery(function($){

function checkTitleAjax(title, id,post_type) {

var data = {

action: 'title_checks',

post_title: title,

post_type: post_type,

post_id: id

};

$.post(ajaxurl, data, function(response) {

$('#message').remove();

$('#poststuff').prepend('<div id=\"message\" class=\"updated below-h2 fade \"><p>'+response+'</p></div>');

});

};

$('#title').change(function() {

var title = $('#title').val();

var id = $('#post_ID').val();

var post_type = $('#post_type').val();

checkTitleAjax(title, id,post_type);

});

</script>

<?php

}

// 接收前端ajax参数

add_action('wp_ajax_title_checks', 'duplicate_title_checks_callback');

function duplicate_title_checks_callback(){

global $wpdb;

$title = $_POST['post_title'];

$post_id = $_POST['post_id'];

$titles = "SELECT post_title FROM $wpdb->posts WHERE post_status = 'publish' AND post_type = 'post'

AND post_title = '{$title}' AND ID != {$post_id} ";

$results = $wpdb->get_results($titles);

if($results) {

echo "<span style='color:red'>". _( '此标题已存在，请换一个标题！' , '' ) ." </span>";

} else {

echo '<span style="color:green">'._('恭喜，此标题未与其他文章标题重复！' , '').'</span>';

}

die();

}

// 检测后端标题并且避免同名文章更新草稿

add_action( 'publish_post','duplicate_titles_wallfa_bc' ) ;

function duplicate_titles_wallfa_bc( $post ){

global $wpdb ;

$title = $_POST['post_title'] ;

$post_id = $post ;

$wtitles = "SELECT post_title FROM $wpdb->posts WHERE post_status = 'publish' AND post_type = 'post'

AND post_title = '{$title}' AND ID != {$post_id} " ;

$wresults = $wpdb->get_results( $wtitles ) ;

if ( $wresults ){

$wpdb->update( $wpdb->posts, array( 'post_status' =>

'draft' ), array( 'ID' => $post ) ) ;

$arr_params = array( 'message' => '10', 'wallfaerror' => '1' ) ;

$location = add_query_arg( $arr_params , get_edit_post_link( $post , 'url' ) ) ;

wp_redirect( $location ) ;

exit ;

}

/// 文章提交更新后的提示

add_action( 'admin_notices', 'not_published_error_notice' );

function not_published_error_notice() {

if(isset($_GET['wallfaerror']) == 1 ){

</div>

<?php

}

// 禁用自动保存

add_action( 'wp_print_scripts', 'disable_autosave' ) ;

function disable_autosave(){

wp_deregister_script( 'autosave' ) ;

}

本文转载自：INLOJV

本作品采用知识共享署名 4.0 国际许可协议进行许可

WordPress防止发表重复标题的文章[代码版]

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