我已经开始创建一些插件（尚未正式部署）（您可以随意使用），现在我的目标是包括自定义帖子类型和分类，并能够在需要时使用高级自定义字段。该插件的目的是基于自定义分类法/自定义帖子类型创建一个列表，并能够将该列表放在任何页面的任何位置（带有短代码），并且当从该列表中选择任何内容时，从所选自定义帖子类型中提取内容，并将其放入另一个div中，而无需重新加载页面。
这是我的准则（请原谅瑞典语部分，但我认为对于实际问题，这不是必要的）：
<?php
/*
Plugin Name: ListAjax
Plugin URI: http://www.wibergsweb.se/plugins/listajax
Description: Display a list and display returned content (from ajax-call) into a div
Version: 0.8.0
Author: Wibergs Web
Author URI: http://www.wibergsweb.se/
License: GPL
Copyright: Wibergs Web
*/
defined( \'ABSPATH\' ) or die( \'No access allowed!\' );
if( !class_exists(\'listajax\') ) {
class listajax
{
private $errormessage = null;
/*
* Constructor
*
* This function will construct all the neccessary actions, filters and functions for the listajax plugin to work
*
*
* @param N/A
* @return N/A
*/
public function __construct() {
//These are needed and should only register custom post types when really neccessary
register_activation_hook( __FILE__, array( $this, \'activate\' ) );
add_action( \'init\', array( $this, \'register_post_types\' ) );
//Iniate jquery and css
add_action( \'wp_enqueue_scripts\', array($this, \'js_css\' ) );
}
/*
* error_notice
*
* This function is used for handling administration notices when user has done something wrong when initiating this object
* Shortcode-equal to: No shortcode equavilent
*
* @param N/A
* @return N/A
*
*/
public function error_notice() {
$message = $this->errormessage;
echo "<div class=\\"error\\"><strong>ListAjax error:</strong><p>$message</p></div>";
}
public function activate() {
$this->register_post_types();
flush_rewrite_rules();
}
/*
* register_post_types
*
* This function register post types and taxonomies
*
* @param N/A
* @return N/A
*
*/
public function register_post_types() {
$municipality_labels = array(
\'name\' => \'Kommun\',
\'singular_name\' => \'Kommun\',
\'add_new\' => \'Lägg till\',
\'add_new_item\' => \'Lägg till ny kommun\',
\'edit_item\' => \'Redigera kommun\',
\'new_item\' => \'Ny kommun\',
\'all_items\' => \'Alla kommuner\',
\'view_item\' => \'Visa kommun\',
\'search_items\' => \'Sök kommuner\',
\'not_found\' => \'Inga kommuner funna\',
\'not_found_in_trash\' => \'Inga kommuner funna i sopkorgen\',
\'parent_item_colon\' => \'\',
\'menu_name\' => \'Kommuner\'
);
$municipality_args = array(
\'labels\' => $municipality_labels,
\'public\' => true,
\'publicly_queryable\' => true,
\'show_ui\' => true,
\'show_in_menu\' => true,
\'query_var\' => true,
\'rewrite\' => array( \'slug\' => \'kommun\' ),
\'capability_type\' => \'post\',
\'has_archive\' => \'kommuner\',
\'hierarchical\' => false,
\'menu_position\' => null,
\'supports\' => array(\'title\',\'editor\',\'author\',\'comments\'),
);
register_post_type( \'municipality\', $municipality_args );
//Register custom taxonomy for distict
$district_cat_labels = array(
\'name\' => \'Område\',
\'singular_name\' => \'Område\',
\'search_items\' => \'Sök område\',
\'all_items\' => \'Alla områden\',
\'parent_item\' => \'Område - förälder\',
\'parent_item_colon\' => \'Föräldra område:\',
\'edit_item\' => \'Redigera område\',
\'update_item\' => \'Uppdatera område\',
\'add_new_item\' => \'Lägg till nytt område\',
\'new_item_name\' => \'Namn på nytt område\',
\'menu_name\' => \'Områden\'
);
$district_cat_args = array(
\'hierarchical\' => true,
\'labels\' => $district_cat_labels,
\'show_ui\' => true,
\'show_admin_column\' => true,
\'query_var\' => true,
\'rewrite\' => array(\'slug\' => \'omraden\')
);
register_taxonomy( \'district\', array(\'municipality\'), $district_cat_args );
}
/*
* init
*
* This function initiates the actual shortcodes (at each pageload)
*
* @param N/A
* @return N/A
*
*/
public function init() {
//Add shortcode
add_shortcode( \'lajax-show\', array($this, \'show\') );
add_shortcode( \'lajax-contactinfo\', array($this, \'show_contactinfoblock\') );
//Initate ajax-functionality
add_action( \'wp_ajax_set_contactinfo\', array ( $this, \'set_resultdiv\') );
add_action( \'wp_ajax_nopriv_set_contactinfo\', array ( $this, \'set_resultdiv\') );
}
public function set_resultdiv() {
$post_id = $_POST[\'post_id\'];
$post_info = get_post($post_id, ARRAY_A); //Array for better performance
$post_content = $post_info[\'post_content\']; //If there any content in post , then show this first
$html .= $post_content;
//If using ACF (Advanced Custom Fields plugin) with get_fields()-function
if( function_exists( \'get_fields\' ) ) {
$fields_cpt = get_fields($post_id);
if (is_array($fields_cpt)) {
//Loop through fields of current post
foreach($fields_cpt as $field_key => $field_value) {
//If field value starts with http, then take for granted it should be linked
if (substr($field_value, 0,4) === \'http\') {
$new_fieldvalue = \'<a target="_blank" href="\' . $field_value . \'">\' . $field_value . \'</a>\';
}
else {
$new_fieldvalue = $field_value; //"Normal" value
}
//Get the label that user has typed in administration
$field = get_field_object($field_key, $post_id, array(\'load_value\' => false));
$label = $field[\'label\'];
//Do the actual output of each label and value
//that is defined in ACF for the custom post type
$html .= \'<span class="lajax-wrapper">\';
$html .= \'<span class="lajax-title">\' . $label. \'</span>\';
$html .= \'<span class="lajax-value">\' . $new_fieldvalue . \'</span>\';
$html .= \'</span>\';
}
}
}
echo $html;
wp_die();
return;
}
public function js_css() {
wp_enqueue_script(
\'listajaxjs\',
plugins_url( \'/js/wibergsweb.js\' , __FILE__)
);
}
public function show_contactinfoblock() {
$html = \'<div class="lajax-container">\';
$html .= \'<div id="contactinfo"></div>\';
$html .= \'</div>\';
return $html;
}
/*
* show
*
* This functions shows a list based on a taxonomy (that is identified by slug)
*
* @param N/A
* @return string date
*
*/
public function show( $attrs ) {
$defaults = array(
\'slug\' => null, //Must be set by user!
\'result_div\' => \'#contactinfo\'
);
//Extract values from shortcode and if not set use defaults above
$args = wp_parse_args( $attrs, $defaults );
extract( $args ); //slug = $args{\'slug\'] etc
//Validation
if ($args[\'slug\'] === null) {
$this->errormessage = \'Slug of district must be set - show()\';
add_action( \'admin_notices\', array( $this,\'error_notice\' ) );
return;
}
//Get posts of selected district
$posts_array = get_posts(
array(
\'posts_per_page\' => -1,
\'post_type\' => \'municipality\',
\'tax_query\' => array(
array(
\'taxonomy\' => \'district\',
\'field\' => \'slug\',
\'terms\' => $args[\'slug\']
)
)
)
);
//Create the actual selectlist based on selected district
$result_div = $args[\'result_div\'];
$html = \'<form name="ajaxlistform" class="ajaxlistform">\';
$html .= \'<select class="ajaxlist" data-resultdiv="\' . $result_div . \'">\';
foreach($posts_array as $pa) {
$id = $pa->ID;
$title = $pa->post_title;
$html .= \'<option value="\' . $id . \'">\' . $title . \'</option>\';
}
$html .= \'</select></form>\';
return $html;
}
}
$listajax = new listajax();
$listajax->init(); //Execute AFTER user defined settings are set
}
The
result_div() - 函数正在将数据返回到
javascript:
jQuery(function ($) {
//Ajax-retrieve value from selected custom post type (that is shown in list)
$(\'.ajaxlistform\').on(\'change\', \'.ajaxlist\', function(e) {
var t = $(this);
var post_id = $(this).val(); //Value from selectlist
var listajaxvalues = $.ajax({
type: \'POST\',
data:{
action: \'set_contactinfo\',
post_id: post_id
},
url: \'/wp-admin/admin-ajax.php\',
dataType: \'html\'
});
//Put data into resultdata div that is set inte data-resultdiv attribute
listajaxvalues.done(function(data) {
var result_data = t.data(\'resultdiv\');
$(result_data).html(data);
return;
});
listajaxvalues.fail(function(ts) {
alert(ts.responseText);
});
});
});
Is there a way to optimize (in terms of speed) the result_div() - function? 检索信息大约需要一秒钟。听起来时间不多，但从selectlist中选择时，似乎是永远的；-）
