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我有一个 wordpress 小部件，我在其中保存选项，标题 + 复制 + URL

url是通过列出wordpress页面生成的

下面的代码保存并在前端正常工作。但是在小部件设置面板中，当您保存它时它会恢复到选择页面，我需要它来显示它保存的先前选择的项目。

// Sidebar CTA Widget
class SidebarCTAWidget extends WP_Widget {
  function SidebarCTAWidget() {
    $widget_ops = array('classname' => 'SidebarCTAWidget', 'description' => 'Editable Sidebar CTAs' );
    $this->WP_Widget('SidebarCTAWidget', 'Sidebar Call to Action', $widget_ops);
  }
  function form($instance) {
    $defaults = array( 'title' => '', 'copy' => '', 'url' => '');
    $instance = wp_parse_args( (array) $instance, $defaults );
    $title = $instance['title'];
    $copy = $instance['copy'];
    $url = $instance['url'];
?>  
  <p>
    <label for="<?php echo $this->get_field_id('title'); ?>">Title:
        <input class="widefat" id="<?php echo $this->get_field_id('title'); ?>" name="<?php echo $this->get_field_name('title'); ?>" type="text" value="<?php echo attribute_escape($title); ?>" />
    </label>
  </p>

 <p>
    <label for="<?php echo $this->get_field_id('copy'); ?>">Copy:
        <textarea rows="5" class="widefat" name="<?php echo $this->get_field_name( 'copy' ); ?>" / ><?php echo esc_attr( $copy ); ?></textarea>
    </label>
 </p>  

 <p>
    <label for="<?php echo $this->get_field_id('url'); ?>">URL:
        <select class="widefat" id="<?php echo $this->get_field_id('url'); ?>" name="<?php echo $this->get_field_name('url'); ?>" name="page-dropdown"> 
             <option value=""> <?php echo esc_attr( __( 'Select Page' ) ); ?></option> 
             <?php 
              $pages = get_pages(); 
              foreach ( $pages as $page ) {
                $option = '<option value="' . get_page_link( $page->ID ) . '">';
                $option .= $page->post_title;
                $option .= '</option>';
                echo $option;
              }
             ?>
         </select>
     </label>
 </p>


<?php }
    //save the widget settings
    function update($new_instance, $old_instance) {
        $instance = $old_instance;
        $instance['title'] = strip_tags( $new_instance['title'] );
        $instance['copy'] = strip_tags( $new_instance['copy'] );
        $instance['url'] = strip_tags( $new_instance['url'] );
        return $instance;
    }
    function widget($args, $instance){

        extract($args, EXTR_SKIP);

        echo $before_widget;
        $title = empty($instance['title']) ? ' ' : apply_filters('widget_title', $instance['title']);
        $copy = empty($instance['copy']) ? ' ' : apply_filters('widget_title', $instance['copy']);
        $url = empty($instance['url']) ? ' ' : apply_filters('widget_title', $instance['url']);

        if (!empty($title))
            echo '<div class="clearfix sidebar-content"><h3>' . $title . '</h3>';
        ;

        // This is the HTML
        echo '<p>' . $copy . '</p></div>';
        echo '<p class="sidebar-link"><a href="' . $url . '" title="Find out more">Find Out More</a></p>';
        // END

        echo $after_widget;
    }
}
add_action( 'widgets_init', create_function('', 'return register_widget("SidebarCTAWidget");') );
4

1 回答 1

0

感谢@b__ 的帮助，我设法弄清楚如何比较数据库中保存的 url 并将其标记为选中

$option = '<option '. (get_page_link( $page->ID ) == attribute_escape($url) ? "selected='selected'":"").'value="' . get_page_link( $page->ID ) . '">';
于 2013-11-06T13:39:57.027 回答