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ここではWordpressの初心者開発者なので、本当に助けが必要です。機能を表示するウィジェットを作成していますが、オプションが保存されません。「保存」を押すと、すべてのボックスが再び空白になります。明らかな何かが欠けていると思います！

私のウィジェットコードの関連部分は次のとおりです。

// First create the widget for the admin panel
class icon_features_widget extends WP_Widget {

  function icon_features_widget() {
    $widget_ops = array( 'description' => __( 'Displays icon features in a widget', 'icon-feature-widget' ) );
    $this->WP_Widget( 'icon_feature_widget', __( 'Icon Feature', 'icon-feature-widget' ), $widget_ops );
  }

  function form( $instance ) {

    $icon_feature_title = isset( $instance['icon_feature_title'] ) ? $instance['icon_feature_title'] : '';
    $icon_feature_text = isset( $instance['icon_feature_text'] ) ? $instance['icon_feature_text'] : '';
    $icon_feature_link_url = isset( $instance['icon_feature_link_url'] ) ? $instance['icon_feature_link_url'] : '';
    $icon_feature_link_text = isset( $instance['icon_feature_link_text'] ) ? $instance['icon_feature_link_text'] : '';
    $radioValue = isset( $instance['radioValue'] ) ? $instance['radioValue'] : '';
    $icon_feature_icon_class = isset( $instance['icon_feature_icon_class'] ) ? $instance['icon_feature_icon_class'] : '';
    $icon_feature_custom_icon_url = isset( $instance['icon_feature_custom_icon_url'] ) ? $instance['icon_feature_custom_icon_url'] : '';
    ?>

    <p>
      <label for="icon_feature_title">Title:</label><br />
      <input type="text" name="icon_feature_title" id="icon_feature_title" value="<?php echo $icon_feature_title ; ?>" />
    </p>

    <p>
      <label for="icon_feature_text">Text:</label><br />
      <textarea name="icon_feature_text" id="icon_feature_text" value="<?php echo $icon_feature_text ; ?>" rows="6" cols="21"/></textarea>
    </p>

    <p>
      <label for="icon_feature_link_url">Link URL:</label><br />
      <input type="text" name="icon_feature_link_url" id="icon_feature_link_url" value="<?php echo $icon_feature_link_url ; ?>" />
    </p>

    <p>
      <label for="icon_feature_link_text">Link Text (defaults to "Read More"):</label><br />
      <input type="text" name="icon_feature_link_text" id="icon_feature_link_text" value="<?php echo $icon_feature_link_text ; ?>" />
    </p>

    <p>Choose which icon source you'd like to use.</p>
    <p>
      <label>
        <input type="radio" id="iconRadio" name="whichToDisplay" value="icon" <?php echo ($radioValue == 'icon' || $radioValue == '') ? 'checked="checked"':''; ?>/>
        Choose from included icons
      </label><br />
      <label>
        <input type="radio" id="customIconRadio" name="whichToDisplay" value="customIcon" <?php echo ($radioValue == 'customIcon') ? 'checked="checked"':''; ?>/>
        Display custom icon
      </label><br />
      <label>
        <input type="radio" id="nothingRadio" name="whichToDisplay" value="nothing" <?php echo ($radioValue == 'nothing') ? 'checked="checked"':''; ?>/>
        Display neither
      </label><br /><br />
    </p>

    <p> <!-- REPLACE THIS WITH SOME KIND OF ICON CHOOSER DROPDOWN THING -->
      <label for="icon_feature_icon_class">Icon Class:</label><br />
      <input type="text" name="icon_feature_icon_class" id="icon_feature_icon_class" value="<?php echo $icon_feature_icon_class ; ?>" />
    </p>

    <p> <!-- REPLACE THIS WITH A WORDPRESS IMAGE CHOOSER / MEDIA LIBRARY CHOOSER -->
      <label for="icon_feature_custom_icon_url">Custom Icon URL:</label><br />
      <input type="text" name="icon_feature_custom_icon_url" id="icon_feature_custom_icon_url" value="<?php echo $icon_feature_custom_icon_url ; ?>" />
    </p>

    <?php 
  }

  function update( $new_instance, $old_instance ) {
    $instance = $old_instance;
    $instance['icon_feature_title'] = $new_instance['icon_feature_title'];
    $instance['icon_feature_text'] = $new_instance['icon_feature_text'];
    $instance['icon_feature_link_url'] = $new_instance['icon_feature_link_url'];
    $instance['icon_feature_link_text'] = $new_instance['icon_feature_link_text'];
    $instance['radioValue'] = $new_instance['radioValue'];
    $instance['icon_feature_icon_class'] = $new_instance['icon_feature_icon_class'];
    $instance['icon_feature_custom_icon_url'] = $new_instance['icon_feature_custom_icon_url'];
    return $instance;
  }

どうもありがとう！

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2 に答える 2

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関数の更新で、$old_instance ではなく $instance を空の配列として使用し、次のようなことを一度確認してみてください。

function update( $new_instance, $old_instance ) {

        $instance = array();
.........
}
于 2013-04-08T06:17:51.567 に答える