带有媒体上传按钮的自定义Wordpress窗口小部件，在每个窗口小部件上插入相同的图像

Question

我是一个菜鸟，制作了自己的自定义小部件，我想制作一个自定义小部件来显示网站的特色服务，包括图像，标题，描述和链接按钮。我在stackoverflow上看了很多，最终得到了几乎可以正常工作的东西。问题是媒体按钮起作用，该字段起作用，但是当我单击“使用此图像”时，它将在找到的每个输入（在小部件桌面内部）中都使用“ image1”类放置相同的图像url，因此每个小部件都具有同一张图片。

如果有人可以帮助我修复它，我将非常感激。抱歉，西班牙语单词很抱歉，但是与我要解决的操作相关的任何内容都没有使用它们。这是我拥有的functions.php代码：

// START CUSTOM WIDGET
class services_widget extends WP_Widget {

    // Create Widget
    function services_widget() {
        parent::WP_Widget(false, $name = 'Servicios Destacados - Widget', array('description' => 'Widget para mostrar servicios destacados en la página principal'));
    }

    // Widget Content
    function widget($args, $instance) { 
        extract( $args );
        $photo = $instance['photo'];
        $titulo = $instance['titulo'];
        $descripcion = $instance['descripcion'];
        $enlace = strip_tags($instance['enlace']);
        $textoenlace = strip_tags($instance['textoenlace']);

        ?>

            <div class="servicio-destacado <?php echo $this->id; ?>">
                <div class="servicio-imagen" style="background-color:#eaeaea;background-image: url('<?php echo $photo; ?>');"></div>
                <div class="titulo"><?php echo $titulo; ?></div>
                <div class="line"></div>
                <div class="descripcion"><?php echo $descripcion; ?></div>
                <a href="<?php echo $enlace; ?>" class="enlace boton"><?php echo $textoenlace; ?></a>
            </div>

        <?php
     }


    // If widget content needs a form
    function form($instance) {
        //widgetform in backend
        $photo = $instance['photo'];
        $titulo = $instance['titulo'];
        $descripcion = $instance['descripcion'];
        $enlace = strip_tags($instance['enlace']);
        $textoenlace = strip_tags($instance['textoenlace']);
        ?>
        <div class="servicio-widget">
            <p>
                <label for="<?php echo $this->get_field_id('photo'); ?>"><strong>Imagen</strong>: </label>
                <input class="widefat image1" type="text" name="<?php echo $this->get_field_name('photo'); ?>" id="<?php echo $this->get_field_id('photo'); ?>" value="<?php echo attribute_escape($photo) ;?>">
            </p>
            <p>
                <button class="image_upload1">Seleccionar o cambiar imagen</button>
            </p>
            <p>
                <label for="<?php echo $this->get_field_id('titulo'); ?>"><strong>Título</strong>: </label>
                <input class="widefat" id="<?php echo $this->get_field_id('titulo'); ?>" name="<?php echo $this->get_field_name('titulo'); ?>" type="text" value="<?php echo attribute_escape($titulo); ?>" />
            </p>
            <p>
                <label for="<?php echo $this->get_field_id('descripcion'); ?>"><strong>Descripción</strong>: </label>
                <textarea class="widefat" id="<?php echo $this->get_field_id('descripcion'); ?>" name="<?php echo $this->get_field_name('descripcion'); ?>" type="text" value="<?php echo attribute_escape($descripcion); ?>"><?php echo attribute_escape($descripcion); ?></textarea>
            </p>
            <p>
                <label for="<?php echo $this->get_field_id('textoenlace'); ?>"><strong>Texto del botón</strong>: </label>
                <input class="widefat" id="<?php echo $this->get_field_id('textoenlace'); ?>" name="<?php echo $this->get_field_name('textoenlace'); ?>" type="text" value="<?php echo attribute_escape($textoenlace); ?>" />
            </p>
            <p>
                <label for="<?php echo $this->get_field_id('enlace'); ?>"><strong>Enlace</strong>: </label>
                <input class="widefat" id="<?php echo $this->get_field_id('enlace'); ?>" name="<?php echo $this->get_field_name('enlace'); ?>" type="text" value="<?php echo attribute_escape($enlace); ?>" />
            </p>
        </div>

        <?php       
    }

    // Update and save the widget
   public function update( $new_instance, $old_instance ) {
   $instance = array();
   $instance['photo'] = ( ! empty( $new_instance['photo'] ) ) ? $new_instance['photo'] : '';

   return $instance;
}

}
register_widget('services_widget');
/*
photo upload option in widget
*/

function photo_upload_option($hook) {

    if( $hook != 'widgets.php' ) 
        return;

    //enque Javasript Media API
    wp_enqueue_media();

    wp_enqueue_script( 'uploadphoto', get_template_directory_uri() . '/upload_image.js', array('jquery') );

}
add_action('admin_enqueue_scripts', 'photo_upload_option'); 
// END CUSTOM WIDGET

这是upload_image.js的代码：

jQuery(function($){

  // Set all variables to be used in scope
  var frame,
      addImgLink = $('.image_upload1'),
      imgIdInput = $('.image1');

  // ADD IMAGE LINK
  addImgLink.on( 'click', function( event ){

    event.preventDefault();

    // If the media frame already exists, reopen it.
    if ( frame ) {
      frame.open();
      return;
    }

    // Create a new media frame
    frame = wp.media({
      title: 'Select or Upload Image',
      button: {
        text: 'Use this Image'
      },
      multiple: false  // Set to true to allow multiple files to be selected
    });


    // When an image is selected in the media frame...
    frame.on( 'select', function() {

      // Get media attachment details from the frame state
      var attachment = frame.state().get('selection').first().toJSON();

      // Send the attachment URL to our custom image input field.
      //imgContainer.append( '<img src="'+attachment.url+'" alt="" style="max-width:100%;"/>' );

      // Send the attachment url to our input field
      imgIdInput.val( attachment.url );
    });

    // Finally, open the modal on click
    frame.open();
  });

});

Answer 1

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