如何在WordPress中使用AJAX表单提交 [英] How to use AJAX form submit in WordPress

问题描述

我有一个带有2个下拉菜单和1个输入提交表单的自定义页面模板.当用户提交表单时，将显示结果，这工作正常.但是我有一个问题，在获取数据库中的数据时浏览器会重新加载.

I have custom page template with a form with 2 dropdown and 1 input submit. When the user submit the form, the result will be displayed, this is working properly. But I have a problem, the browser is reload when fetching the data in the database.

我想使用AJAX来防止重新加载页面.我看到了一些有关Ajax WordPress的文章，但无法正常使用.

I want to use AJAX to prevent reloading of page. I saw some article about Ajax WordPress, but I cannot work it correctly.

任何人都可以帮助我吗?如何使用AJAX?如何在AJAX中调用自定义PHP文件?

Anyone can please help me out? How to do with AJAX? How can I call the custom PHP file in the AJAX?

AJAX(functions.php)

AJAX (functions.php)

    function ajax_enqueue_sl(){
    wp_enqueue_script('ajax_load_sl', get_template_directory_uri().'/js/alternate-dropdown.js', array('jquery'));
    wp_localize_script('ajax_load_sl', 'ajax_object', array('ajax_url' => admin_url( 'admin-ajax.php')));
}
add_action('wp_enqueue_scripts', ajax_enqueue_sl);

add_action('init', 'registerFormAction');
function registerFormAction(){
    // To handle the form data we will have to register ajax action. 
    add_action('wp_ajax_nopriv_submitAjaxForm','submitAjaxForm_callback');
    add_action('wp_ajax_submitAjaxForm','submitAjaxForm_callback');
}

function submitAjaxForm_callback(){
    global $wpdb;
    if(is_page(9208)){
        //ROCK ON!
        if (isset($_POST['store_list']) && $_POST['store_list'] != 'Select by Store'){
        $store_list = $_POST['store_list'];
        $stores= $wpdb->get_results($wpdb->prepare("SELECT street FROM tablename WHERE stores= '" . $store_list . "' AND col IN ('test') ORDER BY street ASC", OBJECT));
        foreach ($stores as $record_s){
            echo '<div class="records">';
            echo '<div><span class="icons-tabbed-store icon-icon-stores">' . $record_s->street . '</span></div>';
            echo '</div>';
        }
    } elseif (isset($_POST['mall_list']) && $_POST['mall_list'] != 'Select by Mall'){
        $mall_list = $_POST['mall_list'];
        $street = $wpdb->get_results($wpdb->prepare("SELECT stores FROM tablename WHERE street= '" . $street_list . "' AND col IN ('test') ORDER BY stores ASC", OBJECT));
        foreach ($street as $record_m){
            echo '<div class="records">';
            echo '<div><span class="icons-tabbed-store icon-icon-stores">' . $record_m->stores . '</span></div>';
            echo '</div>';
        }
    }
    }
    wp_die();
}

带有HTML的PHP​​(test.php)

PHP w/ HTML (test.php)

$results_street = $wpdb->get_results('SELECT DISTINCT street FROM tablename WHERE code IN ("test1") ORDER BY street ASC', OBJECT);
$results_stores = $wpdb->get_results('SELECT DISTINCT stores FROM tablename WHERE code IN ("test2") ORDER BY stores ASC', OBJECT);

<form action='' method='post' name='myform' id="myform">
<div class="pos-div">
<select name="street_list" id="filterbystreet">
    <option name="default" class="filter_by" value="Select by">Select by</option>
    <?php
    foreach($results_street as $option){
        if(isset($_POST['street_list']) && $_POST['street_list'] == $option->street)
            echo '<option name="street_list" class="filter_by" selected value="'. $option->street .'">'. $option->street .'</option>';
        else    
         echo '<option name="street_list" class="filter_by" value="'. $option->street .'">'. $option->street .'</option>';
     };
    ?>
</select>
</div>
<span class="or">or</span>
<div class="pos-div">
<select name="store_list" id="filterby">
    <option name="default" class="filter_by" value="Select by">Select by</option>
    <?php 
    foreach($results_stores as $option){
        if(isset($_POST['store_list']) && $_POST['store_list'] == $option->stores)
            echo '<option name="store_list" class="filter_by" selected value="'. $option->stores .'">'. $option->stores .'</option>';
        else    
         echo '<option name="store_list" class="filter_by" value="'. $option->stores .'">'. $option->stores .'</option>';
     };
    ?>
</select>
</div>
<input type="submit" value="List all partner stores" class="pos-submit"/>
</form>

if (isset($_POST['store_list']) && $_POST['store_list'] != 'Select by Store'){
        $store_list = $_POST['store_list'];
        $stores= $wpdb->get_results($wpdb->prepare("SELECT street FROM tablename WHERE stores= '" . $store_list . "' AND code IN ('test3') ORDER BY street ASC", OBJECT));
        foreach ($stores as $record_s){
            echo '<div class="records">';
            echo '<div><span>' . $record_s->street. '</span></div>';
            echo '</div>';
        }
    } elseif (isset($_POST['street_list']) && $_POST['street_list'] != 'Select by'){
    $street_list = $_POST['street_list'];
    $streets = $wpdb->get_results($wpdb->prepare("SELECT street FROM tablename WHERE street_list= '" . $street_list. "' AND code IN ('test3') ORDER BY stores ASC", OBJECT));
    foreach ($streets as $record_m){
        echo '<div class="records">';
        echo '<div><span>' . $record_m->stores . '</span></div>';
        echo '</div>';
    }
}

ajax_js.js

ajax_js.js

    jQuery(document).ready(function($){
    //$('#myform').submit(ajaxFormSubmit);

    $('#filterbystreet').change(function(){
        $('#filterbystore').prop('selectedIndex','Select by Store');
    });

    $('#filterbystore').change(function(){
        $('#filterbystreet').prop('selectedIndex','Select by');
    });

    jQuery('.pos-submit').on('click',function(e){ 
        e.preventDefault(); 
        var myform = jQuery('#myform').serialize(); 

        jQuery.ajax({ 
            type:"POST", 
            // Get the admin ajax url which we have passed through wp_localize_script(). 
            url: ajax_object.ajax_url, 
            action: "submitAjaxForm", 
            data: myform, 
            success:function(data){ 
                jQuery(".records").html(data); 
                console.log(data);
            } 
        }); 
    });
});

推荐答案

请勿在ajax调用中提交表单.您可以像这样使用.

Do not submit the form on ajax call. You can use like this.

    jQuery('#filterbymall').change(function(){

        jQuery('#filterbystore').prop('selectedIndex','Select by Store');
        ajaxSubmit();        

    });

    jQuery('#filterbystore').change(function(){

        jQuery('#filterbystreet').prop('selectedIndex','Select by');        
        ajaxSubmit();      

    });


function ajaxSubmit(){
    var myform= jQuery("'#myform").serialize();
    jQuery.ajax({
        type:"POST",
        url: "/wp-admin/admin-ajax.php",
        data: myform,
        success:function(data){
            jQuery(".records").html(data);
        }
    });
    return false;
}

并更改此

  <input type="submit" value="List all partner stores" class="pos-submit"/>

到

  <input type="button" value="List all partner stores" class="pos-submit"/>

输入类型提交到按钮

这篇关于如何在WordPress中使用AJAX表单提交的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！