Visualizza questo scheletro di caricamentomultimediale . Puoi anche usarloneltuomarkuppersonalizzato,come Meta Box.

Un suggerimento,controlla,che usi sologli script sullapagina,dove attiviiltuo Meta Box. Altrimenti è spesso unproblema sullepaginepredefinitee sull'uploader.

Ora untentativo di cancellare lepartiimportantiperincludere l'uploadernellatuapartepersonalizzata.

Primaincludi unpulsantenelmetabox:

 <input id="upload_image" type="text" size="36" name="upload_image" value="" />
<input id="upload_image_button" type="button" value="Upload Image" />
 

Ora accodagli script:

 function my_admin_scripts() {    
    wp_enqueue_script('media-upload');
    wp_enqueue_script('thickbox');
    wp_register_script('my-upload', WP_PLUGIN_URL.'/my-script.js', array('jquery','media-upload','thickbox'));
    wp_enqueue_script('my-upload');
}

function my_admin_styles() {

    wp_enqueue_style('thickbox');
}

// better use get_current_screen(); or the global $current_screen
if (isset($_GET['page']) && $_GET['page'] == 'my_plugin_page') {

    add_action('admin_print_scripts', 'my_admin_scripts');
    add_action('admin_print_styles', 'my_admin_styles');
}
 

L'ultimaparte èiltuo scriptpersonalizzatoper utilizzarethickboxe l'uploader al suointerno.

 jQuery(document).ready( function( $ ) {

    $('#upload_image_button').click(function() {

        formfield = $('#upload_image').attr('name');
        tb_show( '', 'media-upload.php?type=image&TB_iframe=true' );
        window.send_to_editor = function(html) {
           imgurl = $(html).attr('src');
           $('#upload_image').val(imgurl);
           tb_remove();
        }

        return false;
    });

});
 

See this media uploader skeleton. You can also use it in your custom markup, like Meta Box.

A hint, check, that you only use the scripts on the page, where you active your Meta Box. Otherwise is it often a problem on the default pages and the uploader.

Now a attempt to clear the important parts to include the uploader to your custom part.

First include an button in the meta box:

<input id="upload_image" type="text" size="36" name="upload_image" value="" />
<input id="upload_image_button" type="button" value="Upload Image" />

Now enqueue the scripts:

function my_admin_scripts() {    
    wp_enqueue_script('media-upload');
    wp_enqueue_script('thickbox');
    wp_register_script('my-upload', WP_PLUGIN_URL.'/my-script.js', array('jquery','media-upload','thickbox'));
    wp_enqueue_script('my-upload');
}

function my_admin_styles() {

    wp_enqueue_style('thickbox');
}

// better use get_current_screen(); or the global $current_screen
if (isset($_GET['page']) && $_GET['page'] == 'my_plugin_page') {

    add_action('admin_print_scripts', 'my_admin_scripts');
    add_action('admin_print_styles', 'my_admin_styles');
}

The last part is your custom script to use the thickbox and the uploader inside this.

jQuery(document).ready( function( $ ) {

    $('#upload_image_button').click(function() {

        formfield = $('#upload_image').attr('name');
        tb_show( '', 'media-upload.php?type=image&TB_iframe=true' );
        window.send_to_editor = function(html) {
           imgurl = $(html).attr('src');
           $('#upload_image').val(imgurl);
           tb_remove();
        }

        return false;
    });

});

Soluzione:

1)neltuo functions.php ,aggiungiilbloccoper la registrazione degli scriptnecessari:

 // add necessary scripts
add_action('plugins_loaded', function(){
  if($GLOBALS['pagenow']=='post.php'){
    add_action('admin_print_scripts', 'my_admin_scripts');
    add_action('admin_print_styles',  'my_admin_styles');
  }
});

function my_admin_scripts(){
  wp_enqueue_script('jquery');
  wp_enqueue_script('media-upload');
  wp_enqueue_script('thickbox');
}

// Proper way to enqueue
// wp_register_script(
//   'my-upload',
//   WP_PLUGIN_URL.'/my-script.js',
//   array('jquery','media-upload','thickbox') /* dependencies */
// );
//
// wp_enqueue_script('my-upload');

function my_admin_styles(){
  wp_enqueue_style('thickbox');
}
 

2)e quindi aggiungiilblocco metabox :

 add_action(
  'add_meta_boxes',
  function(){
    add_meta_box(
      'my-metaboxx1', // ID
      'my-metaboxx1-title', // Title
      'func99999', // Callback (Construct function)
      get_post_types(), //screen (This adds metabox to all post types)
      'normal' // Context
    );
 },
 9
);
function func99999($post){
  $url = get_post_meta($post->ID, 'my-image-for-post', true); ?>
  <input id="my_image_URL" name="my_image_URL" type="text"
         value="<?php echo $url;?>" style="width:400px;" />
  <input id="my_upl_button" type="button" value="Upload Image" /><br/>
  <img src="<?php echo $url;?>" style="width:200px;" id="picsrc" />
  <script>
  jQuery(document).ready( function($) {
    jQuery('#my_upl_button').click(function() {
      window.send_to_editor = function(html) {
        imgurl = jQuery(html).attr('src')
        jQuery('#my_image_URL').val(imgurl);
        jQuery('#picsrc').attr("src", imgurl);
        tb_remove();
      }

      formfield = jQuery('#my_image_URL').attr('name');
      tb_show('', 'media-upload.php?type=image&amp;TB_iframe=true' );
      return false;
    }); // End on click
  });
  </script>
<?php
}

add_action('save_post', function ($post_id) {
  if (isset($_POST['my_image_URL'])){
    update_post_meta($post_id, 'my-image-for-post', $_POST['my_image_URL']);
  }
});
 

p.s. se haibisogno dipiù campi,puoifacilmentefarein questomodo: http://pastebin.com/raw/xpU1ch2W

Solution:

1) in your functions.php, add the block for registering the necessary scripts:

// add necessary scripts
add_action('plugins_loaded', function(){
  if($GLOBALS['pagenow']=='post.php'){
    add_action('admin_print_scripts', 'my_admin_scripts');
    add_action('admin_print_styles',  'my_admin_styles');
  }
});

function my_admin_scripts(){
  wp_enqueue_script('jquery');
  wp_enqueue_script('media-upload');
  wp_enqueue_script('thickbox');
}

// Proper way to enqueue
// wp_register_script(
//   'my-upload',
//   WP_PLUGIN_URL.'/my-script.js',
//   array('jquery','media-upload','thickbox') /* dependencies */
// );
//
// wp_enqueue_script('my-upload');

function my_admin_styles(){
  wp_enqueue_style('thickbox');
}

2) and then add metabox block:

add_action(
  'add_meta_boxes',
  function(){
    add_meta_box(
      'my-metaboxx1', // ID
      'my-metaboxx1-title', // Title
      'func99999', // Callback (Construct function)
      get_post_types(), //screen (This adds metabox to all post types)
      'normal' // Context
    );
 },
 9
);
function func99999($post){
  $url = get_post_meta($post->ID, 'my-image-for-post', true); ?>
  <input id="my_image_URL" name="my_image_URL" type="text"
         value="<?php echo $url;?>" style="width:400px;" />
  <input id="my_upl_button" type="button" value="Upload Image" /><br/>
  <img src="<?php echo $url;?>" style="width:200px;" id="picsrc" />
  <script>
  jQuery(document).ready( function($) {
    jQuery('#my_upl_button').click(function() {
      window.send_to_editor = function(html) {
        imgurl = jQuery(html).attr('src')
        jQuery('#my_image_URL').val(imgurl);
        jQuery('#picsrc').attr("src", imgurl);
        tb_remove();
      }

      formfield = jQuery('#my_image_URL').attr('name');
      tb_show('', 'media-upload.php?type=image&amp;TB_iframe=true' );
      return false;
    }); // End on click
  });
  </script>
<?php
}

add_action('save_post', function ($post_id) {
  if (isset($_POST['my_image_URL'])){
    update_post_meta($post_id, 'my-image-for-post', $_POST['my_image_URL']);
  }
});

p.s. in case you need multiple fields, then you can easily do like this: http://pastebin.com/raw/xpU1ch2W