wordpress特色图片来自外部网址,无需下载

时间:2014-03-22 12:25:03

标签: wordpress image featured

我想在wordpress上使用外部图片作为特色图片。

要么改变worpdress代码。 (添加一个提取的图像元变量框,接受网址并进行一些修改,以便正确显示网址中的精选图像)

或修改插件WP远程缩略图,它从图像URL设置特色图像。它下载图片并在wordpress中创建缩略图并设置特色图片。

修饰: *无需从网址下载,只需使用网址直接在博客上显示即可。 *从wordpress生成的网址中删除wp-content / uploads以显示精选图片(仅限外部网址) *没有缩略图创建。

非常感谢你的阅读 我知道有很多关于这个问题的问题 但如果我们解决这个问题,它可能会对很多人有用。

这里是代码:

<?php
/*
Plugin Name: WP Remote Thumbnail
Plugin URI: http://magnigenie.com/wp-remote-thumbnail-set-external-images-featured-image/
Description: A small light weight plugin to set external/remote images as post thumbnail/featured image.
Version: 1.0
Author: Nirmal Kumar Ram
Author URI: http://magnigenie.com
License: GPLv2 or later
License URI: http://www.gnu.org/licenses/gpl-2.0.html
*/
?>
<?php

/**
 * Initialize wprthumb on the post edit screen.
 */
function init_wprthumb() {
    new wprthumb();
}

if ( is_admin() ) {
    add_action( 'load-post.php', 'init_wprthumb' );
    add_action( 'load-post-new.php', 'init_wprthumb' );
}


class wprthumb {

    /**
     * Hook into the appropriate actions when the wprthumb is constructed.
     */
    public function __construct() {
        add_action( 'add_meta_boxes', array( $this, 'add_meta_box' ) );
        add_action( 'save_post', array( $this, 'save' ) );
    }

    /**
     * Adds the meta box container.
     */
    public function add_meta_box( $post_type ) {
    if ( post_type_supports( $post_type, 'thumbnail' )) {
      add_meta_box(
        'some_meta_box_name'
        ,'Remote Post Thumbnail'
        ,array( $this, 'render_meta_box_content' )
        ,$post_type
        ,'side'
        ,'default'
      );
    }
    }

    /**
     * Save the meta when the post is saved.
     */
    public function save( $post_id ) {

        /*
         * We need to verify this came from the our screen and with proper authorization,
         * because save_post can be triggered at other times.
         */

        // Check if our nonce is set.
        if ( ! isset( $_POST['wprthumb_nonce'] ) )
            return $post_id;

        $nonce = $_POST['wprthumb_nonce'];

        // Verify that the nonce is valid.
        if ( ! wp_verify_nonce( $nonce, 'wprthumb' ) )
            return $post_id;

        // If this is an autosave, our form has not been submitted,
    // so we don't want to do anything.
        if ( defined( 'DOING_AUTOSAVE' ) && DOING_AUTOSAVE ) 
            return $post_id;

        // Check the user's permissions.
        if ( 'page' == $_POST['post_type'] ) {

            if ( ! current_user_can( 'edit_page', $post_id ) )
                return $post_id;

        } else {

            if ( ! current_user_can( 'edit_post', $post_id ) )
                return $post_id;
        }

    /* All good, its safe for us to save the data now. */

        // Sanitize the user input.
        $image = sanitize_text_field( $_POST['remote_thumb'] );
    $upload_dir = wp_upload_dir();
    //Get the remote image and save to uploads directory
    $img_name = time().'_'.basename( $image );
    $img = wp_remote_get( $image );
    $img = wp_remote_retrieve_body( $img );
    $fp = fopen( $upload_dir['path'].'/'.$img_name , 'w');
    fwrite($fp, $img);
    fclose($fp);

    $wp_filetype = wp_check_filetype( $image , null );
    $attachment = array(
      'post_mime_type' => $wp_filetype['type'],
      'post_title' => preg_replace('/\.[^.]+$/', '', $image ),
      'post_content' => '',
      'post_status' => 'inherit'
    );

    //require for wp_generate_attachment_metadata which generates image related meta-data also creates thumbs
    require_once( ABSPATH . 'wp-admin/includes/image.php' );
    $attach_id = wp_insert_attachment( $attachment, $image, $post_id );
    //Generate post thumbnail of different sizes.
    $attach_data = wp_generate_attachment_metadata( $attach_id , $image );
    wp_update_attachment_metadata( $attach_id,  $attach_data );
    //Set as featured image.
    delete_post_meta( $post_id, '_thumbnail_id' );
    add_post_meta( $post_id , '_thumbnail_id' , $attach_id, true);
    }

    /**
     * Render Meta Box content.
     */
    public function render_meta_box_content( $post ) {

        // Add an nonce field so we can check for it later.
        wp_nonce_field( 'wprthumb', 'wprthumb_nonce' );

        // Display the form, using the current value.
        echo '<label for="remote_thumb">';
        _e( 'Enter remote image url', 'wprthumb' );
        echo '</label> ';
        echo '<input type="text" id="remote_thumb" name="remote_thumb" size="25" />';
    }
}

3 个答案:

答案 0 :(得分:2)

我发现这个插件似乎可以满足您的需求: https://wordpress.org/plugins/external-featured-image

答案 1 :(得分:1)

我刚刚发现您可以从远程网址插入图片而无需先下载它们然后重新上传它们。这在Wordpress中默认有效,无需安装任何插件。

以下是:

无论您在哪里看到上传文件,请点击该文件 - 您的文件浏览器将显示在您预计必须选择本地文件的位置,但如果您只是将IMAGE URL粘贴到此框并点击OPEN或[ENTER] Wordpress从远程URL导入图像。

Click SELECT FILES to upload images from a remote URL 单击“选择文件”以从远程URL上载图像

Paste the remote image URL into the place where you'd normally have the file name 将远程图片网址粘贴到您通常拥有文件名的地方

答案 2 :(得分:0)

我为此开发了pluginenter image description here