web-dev-qa-db-ja.com

メタボックスに画像をアップロードする

メディアマネージャを使用せずにメタボックスを介したアップロードを実装しようとしていますが、添付ファイルとして追加する必要があります。

現在アップロードしてサーバーに保存するだけです。

<?php

define("THUMB_DIR", WP_CONTENT_DIR . '/plugins/meta-upload/thumbs/'); 
define("THUMB_URL", WP_CONTENT_URL . '/plugins/meta-upload/thumbs/'); 

// this needs to be implemented

function fileupload( $label ) { ?>
<tr>
    <td class="left_label"> <?php
        echo $label; ?>
    </td>
    <td>
        <form name="uploadfile" id="uploadfile_form" method="POST" enctype="multipart/form-data" action="<?php echo $this->filepath.'#uploadfile'; ?>" accept-charset="utf-8" >
            <input type="file" name="uploadfiles[]" id="uploadfiles" size="35" class="uploadfiles" />
            <input class="button-primary" type="submit" name="uploadfile" id="uploadfile_btn" value="Upload"  />
        </form>
    </td>
</tr>  
 <?php
}

//this needs to be added too

function fileupload_process() { 
$uploadfiles = $_FILES['uploadfiles'];

if (is_array($uploadfiles)) {

    foreach ($uploadfiles['name'] as $key => $value) {

        // look only for uploded files
        if ($uploadfiles['error'][$key] == 0) {

            $filetmp = $uploadfiles['tmp_name'][$key];

            //clean filename and extract extension
            $filename = $uploadfiles['name'][$key];

            // get file info
            // @fixme: wp checks the file extension....
            $filetype = wp_check_filetype( basename( $filename ), null );
            $filetitle = preg_replace('/\.[^.]+$/', '', basename( $filename ) );
            $filename = $filetitle . '.' . $filetype['ext'];
            $upload_dir = wp_upload_dir();

            /**
             * Check if the filename already exist in the directory and rename the
             * file if necessary
             */
            $i = 0;
            while ( file_exists( $upload_dir['path'] .'/' . $filename ) ) {
                $filename = $filetitle . '_' . $i . '.' . $filetype['ext'];
                $i++;
            }
            $filedest = $upload_dir['path'] . '/' . $filename;

            /**
             * Check write permissions
             */
            if ( !is_writeable( $upload_dir['path'] ) ) {
                $this->msg_e('Unable to write to directory %s. Is this directory writable by the server?');
                return;
            }

            /**
             * Save temporary file to uploads dir
             */
            if ( !@move_uploaded_file($filetmp, $filedest) ){
                $this->msg_e("Error, the file $filetmp could not moved to : $filedest ");
                continue;
            }

            $attachment = array(
                'post_mime_type' => $filetype['type'],
                'post_title' => $filetitle,
                'post_content' => '',
                'post_status' => 'inherit'
            );

            $attach_id = wp_insert_attachment( $attachment, $filedest );
            require_once( ABSPATH . "wp-admin" . '/includes/image.php' );
            $attach_data = wp_generate_attachment_metadata( $attach_id, $filedest );
            wp_update_attachment_metadata( $attach_id,  $attach_data );
        }
    }
}
}

add_action('admin_menu', "post_upload_box_init");
add_action('save_post', 'post_save_thumb');

function post_upload_box_init() {
    add_meta_box("post-thumbnail-posting", "Dark Toob Thumbnail", "post_upload_thumbnail", "post", "advanced");

}

function post_upload_thumbnail() {
    global $post;
?>
<script type="text/javascript">
    document.getElementById("post").setAttribute("enctype","multipart/form-data");
    document.getElementById('post').setAttribute('encoding','multipart/form-data');
</script>

<?php
    $thumb = get_post_meta($post->ID, 'custom_thumbnail',true);

    if ( $thumb )
    {
?>
<div style="float: left; margin-right: 10px;">
    <img style="border: 1px solid #ccc; padding: 3px;" src="<?php echo THUMB_URL . $thumb; ?>" alt="Thumbnail preview" />
</div>
<?php
    }
    else
    {
?>
<div style="float: left; margin-right: 10px; width: 200px; height: 150px; line-height: 150px; border: solid 1px #ccc; text-align: center;">Thumbnail preview</div>
<?php } ?>

<div style="float: left;">
    <p>
        <label for="thumb-url-upload"><?php _e("Upload via URL, or Select Image (Below)"); ?>:</label><br />
        <input style="width: 300px; margin-top:5px;" id="thumb-url-upload" name="thumb-url-upload" type="text" />
    </p>    
    <p>
        <p><label for="thumbnail"><?php _e("Upload a thumbnail"); ?>:</label><br />
        <input id="thumbnail" type="file" name="thumbnail" />
    </p>
    <p><input id="thumb-delete" type="checkbox" name="thumb-delete"> <label for="thumb-delete"><?php _e("Delete thumbnail"); ?></label></p>

    <p style="margin:10px 0 0 0;"><input id="publish" class="button-primary" type="submit" value="<?php _e("Update Post"); ?>" accesskey="p" tabindex="5" name="save"/></p>
</div>

<div class="clear"></div>
<?php
}

function post_save_thumb( $postID )
{
global $wpdb;

// Get the correct post ID if revision.
if ( $wpdb->get_var("SELECT post_type FROM $wpdb->posts WHERE ID=$postID")=='revision')
    $postID = $wpdb->get_var("SELECT post_parent FROM $wpdb->posts WHERE ID=$postID");

if ( $_POST['thumb-delete'] )
{
    @unlink(THUMB_DIR . get_post_meta($postID, 'custom_thumbnail', true));
    delete_post_meta($postID, 'custom_thumbnail');
}
elseif ( $_POST['thumb-url-upload'] || !empty($_FILES['thumbnail']['tmp_name']) )
{
    if ( !empty($_FILES['thumbnail']['name']) )
        preg_match("/(\.(?:jpg|jpeg|png|gif))$/i", $_FILES['thumbnail']['name'], $matches);
    else
        preg_match("/(\.(?:jpg|jpeg|png|gif))$/i", $_POST['thumb-url-upload'], $matches);

    $thumbFileName = $postID . strtolower($matches[0]);

    // Location of thumbnail on server.
    $loc = THUMB_DIR . $thumbFileName;

    $thumbUploaded = false;

    if ( $_POST['thumb-url-upload'] )
    {
        // Try just using fopen to download the image.
        if( ini_get('allow_url_fopen') )
        {
            copy($_POST['thumb-url-upload'], $loc);
            $thumbUploaded = true;

        }
        else

        // If fopen doesn't work, try cURL.
        if( function_exists('curl_init') )
        {
            $ch = curl_init($_POST['thumb-url-upload']);
            $fp = fopen($loc, "wb");

            $options = array(CURLOPT_FILE => $fp,
                CURLOPT_HEADER => 0,
                CURLOPT_FOLLOWLOCATION => 1,
                CURLOPT_TIMEOUT => 60);
            curl_setopt_array($ch, $options);

            curl_exec($ch);
            curl_close($ch);

            fclose($fp);
            $thumbUploaded = true;
        }
    }
    else

    // Attempt to move the uploaded thumbnail to the thumbnail directory.
    if ( !empty($_FILES['thumbnail']['tmp_name']) && move_uploaded_file($_FILES['thumbnail']['tmp_name'], $loc) )
        $thumbUploaded = true;

    if ( $thumbUploaded )
    {
        if ( !update_post_meta($postID, 'custom_thumbnail', $thumbFileName) )
            add_post_meta($postID, 'custom_thumbnail', $thumbFileName);
    }

}
}
postsimagesmetabox
3
chrismccoy

Steve Taylorsプラグインとそのアプローチ こちらをご覧ください。

Dominik "ocean90" Schilling .5の新機能）メディアライブラリの作成者は、---（GitHubリポジトリ でデモを披露しています。

要するに、彼のチュートリアルでは、メタボックスにドラッグアンドドロップスタイルのメディアアップローダーを実装できないかもしれませんが、shouldはどうにかして... 。

5
kaiser