Execute um pedido AJAX após o outro pedido Ajax terminado

Um arquivo JSestáfazendo uma chamada Ajax. Dentro do sucesso desta chamada Ajax,outra chamada Ajax éfeita. A segunda chamada verifica se oemailjáfoi registrado. Setiver sido,a segunda chamada AJAX recebe dados retornados,conformemostradono Firebuge no Console Chromeno caso. Mas omesmo códigofuncionabem no localhost,enquanto oproblemamencionado ocorre apenasno servidor online.

Apágina hospedadaestáem http://twmobilefitness.com/signup/. Oproblema ocorre quando você clicano link '' registrar agora 'nofinal. Vocêtem que se registrar duas vezes com omesmoendereço dee-mail,se quiser obter oproblema acontecer.

js:

 $.ajax( {
    url : base_url+"/wp-admin/admin-ajax.php",
    type : 'GET',
    cache : false,
    data : 'action=check_user_name&'
           + Math.floor( ( Math.random() * 100 ) +1 )
           + '&user_name='+user_name,
    success : function( result ) {
        if ( parseInt( result ) == 0 ) {
            $( ".result" ).html( '<span class="error">User name not available </span>' );
        } else if ( parseInt( result ) == 1 ) {
            $.ajax( {
                url : base_url 
                    + "/wp-admin/admin-ajax.php",
                type : 'GET',
                cache : false,
                data : 'action=check_email_used&'
                    + Math.floor( ( Math.random() *100 ) +1 )
                    + '&email=' + email,
                success : function( result_email ) {
                    if ( parseInt( result_email ) == 0 ) {
                        $( ".result" ).html( '<span class="error">Email already used </span>' );
                    } else if ( parseInt( result_email ) == 1 ) {
                        $( ".result" ).html( '' );      
                        $( ".signup_div" ).hide();
                        $( ".signup_emergency_contact" ).show();
                    }
                }
            } );
        }
    }   
} );    
 

functions.phptem

 add_action('wp_ajax_check_user_name','check_user_name');
add_action('wp_ajax_nopriv_check_user_name','check_user_name');

add_action( 'wp_ajax_check_email_used','check_email_used' );
add_action( 'wp_ajax_nopriv_check_email_used','check_email_used' );
function check_user_name() {
    global $wpdb;

    $user_name = trim( $_GET['user_name'] );
    $MobTraining = new MobTraining();
    $table =trim( "{$wpdb->prefix}users" );
    $array_where['user_login'] = $user_name;
    $sql_fetch = $MobTraining->fetch( $table, $array_where );
    $row = $wpdb->get_results( $sql_fetch, ARRAY_A );
    if ( sizeof( $row ) != 0 ) {
        echo '0';
    } else {
        echo '1';
    }
    die();
}

function check_email_used() {
    global $wpdb;

    $email = trim( $_GET['email'] );
    $MobTraining = new MobTraining();
    $table = trim( "{$wpdb->prefix}users" );
    $array_where['user_email'] = $email;
    $sql_fetch = "SELECT * FROM $table WHERE `user_email`='$email'";
    $row = $wpdb->get_results( $sql_fetch, ARRAY_A );
    if ( sizeof( $row ) != 0 ) {
        echo '0';
    } else {
        echo '1';
    }
    die();
}
 

Comofazer o códigofuncionarno servidor online?

One JS file is making an ajax call. Within the success of this ajax call another AJAX call is made. The second call checks whether the email has already been registered. If it has been then the second AJAX call recieves no returned data as shown in firebug and Chrome console in the case. But the same code works just fine in localhost while the mentioned problem takes place ONLY in online server.

The hosted page is at http://twmobilefitness.com/signup/. The problem takes place when you click on the 'Register Now' link at the end. You have to register twice with the same email address if you want to get the problem happen.

JS:

$.ajax( {
    url : base_url+"/wp-admin/admin-ajax.php",
    type : 'GET',
    cache : false,
    data : 'action=check_user_name&'
           + Math.floor( ( Math.random() * 100 ) +1 )
           + '&user_name='+user_name,
    success : function( result ) {
        if ( parseInt( result ) == 0 ) {
            $( ".result" ).html( '<span class="error">User name not available </span>' );
        } else if ( parseInt( result ) == 1 ) {
            $.ajax( {
                url : base_url 
                    + "/wp-admin/admin-ajax.php",
                type : 'GET',
                cache : false,
                data : 'action=check_email_used&'
                    + Math.floor( ( Math.random() *100 ) +1 )
                    + '&email=' + email,
                success : function( result_email ) {
                    if ( parseInt( result_email ) == 0 ) {
                        $( ".result" ).html( '<span class="error">Email already used </span>' );
                    } else if ( parseInt( result_email ) == 1 ) {
                        $( ".result" ).html( '' );      
                        $( ".signup_div" ).hide();
                        $( ".signup_emergency_contact" ).show();
                    }
                }
            } );
        }
    }   
} );    

functions.php has

add_action('wp_ajax_check_user_name','check_user_name');
add_action('wp_ajax_nopriv_check_user_name','check_user_name');

add_action( 'wp_ajax_check_email_used','check_email_used' );
add_action( 'wp_ajax_nopriv_check_email_used','check_email_used' );
function check_user_name() {
    global $wpdb;

    $user_name = trim( $_GET['user_name'] );
    $MobTraining = new MobTraining();
    $table =trim( "{$wpdb->prefix}users" );
    $array_where['user_login'] = $user_name;
    $sql_fetch = $MobTraining->fetch( $table, $array_where );
    $row = $wpdb->get_results( $sql_fetch, ARRAY_A );
    if ( sizeof( $row ) != 0 ) {
        echo '0';
    } else {
        echo '1';
    }
    die();
}

function check_email_used() {
    global $wpdb;

    $email = trim( $_GET['email'] );
    $MobTraining = new MobTraining();
    $table = trim( "{$wpdb->prefix}users" );
    $array_where['user_email'] = $email;
    $sql_fetch = "SELECT * FROM $table WHERE `user_email`='$email'";
    $row = $wpdb->get_results( $sql_fetch, ARRAY_A );
    if ( sizeof( $row ) != 0 ) {
        echo '0';
    } else {
        echo '1';
    }
    die();
}

How to make the code work in online server ?