Dynamic list of radio options in custom field

  • Kyle Maurer

    (@brashrebel)


    10 years, 7 months ago

    I am trying to add a custom field radio group to one of my custom post types and ma hitting wall after wall. Here’s what I would like to occur:

    On my CPT “service” I would like to show a list of specific items from the media library that have a certain custom field marked as true. Each of these media items should display as a radio option. I can create the queries and stuff but can’t seem to create options for the radio group that are anything but static. By this I mean I can manually enter values as options just fine. But I cannot for the life of me get it to just automatically grab all the appropriate posts and use each as an option.

    I can post the code I’m using if anyone would like. I was just wondering if there was anyway to modify my array so that options are dynamic and not static as in:

    $meta_box['service'] = array(
    'id' => 'service-info',
    'title' => 'Service info',
    'context' => 'normal',
    'priority' => 'high',
    'fields' => array(
        array(
            'name' => 'Service background',
            'desc' => 'The background for this service',
            'id' => 'service-bg',
            'type' => 'radio',
	'options' => array(
                array('name' => ?????, 'value' => ??????)
            )
        )
    )
);

Viewing 1 replies (of 1 total)
  • Thread Starter Kyle Maurer

    (@brashrebel)

    10 years, 7 months ago

    Here is the full code right now. Kind of messy I know:

    $attachments = get_posts( array(
			'post_type' => 'attachment',
			'posts_per_page' => -1,
			'meta_key'         => '_kjm_is_service',
			'meta_value'       => '1'
		) );
		            if ( $attachments ) {
			foreach ( $attachments as $attachment ) {

			$kjm_alt = get_post_meta($attachment->ID, '_wp_attachment_image_alt', true);
			$kjm_image_title = $attachment->post_title;
			$kjm_url = wp_get_attachment_url( $attachment->ID , false );
			}
			}

$meta_box['service'] = array(
    'id' => 'service-details',
    'title' => 'Service Details',
    'context' => 'normal',
    'priority' => 'high',
    'fields' => array(
        array(
            'name' => 'background-image',
            'desc' => 'bla bla bla',
            'id' => 'service-bg',
            'type' => 'radio',
	'options' => array(
                array('name' => 'Name 1', 'value' => 'Value 1'),
                array('name' => 'Name 2', 'value' => 'Value 2'),
                array('name' => $kjm_url, 'value' => $kjm_url)
            )
        )
    )
);

add_action('admin_menu', 'kjm_add_box');

//Add meta boxes to post types
function kjm_add_box() {
    global $meta_box;

    foreach($meta_box as $post_type => $value) {
        add_meta_box($value['id'], $value['title'], 'kjm_format_box', $post_type, $value['context'], $value['priority']);
    }
}

//Format meta boxes
function kjm_format_box() {
  global $meta_box, $post;
  //print_r(array_values($meta_box));
  // Use nonce for verification
  echo '<input type="hidden" name="kjm_meta_box_nonce" value="', wp_create_nonce(basename(__FILE__)), '" />';

  echo '<table class="form-table">';

  foreach ($meta_box[$post->post_type]['fields'] as $field) {
      // get current post meta data
      $meta = get_post_meta($post->ID, $field['id'], true);

		     echo '<tr>'.
              '<th style="width:20%"><label for="'. $field['id'] .'">'. $field['name']. '</label></th>'.
              '<td>';
      switch ($field['type']) {

          case 'radio':
              foreach ($field['options'] as $option) {

                  echo '<input type="radio" name="' . $field['id'] . '" value="' . $option['value'] . '"' . ( $meta == $option['value'] ? ' checked="checked"' : '' ) . ' />' . $option['name'];
              }
              break;

              }
      }
      echo     '<td>'.'</tr>';
  }

  echo '</table>';

}

// Save data from meta box
function kjm_save_data($post_id) {
    global $meta_box,  $post;

    //Verify nonce
    if (!wp_verify_nonce($_POST['kjm_meta_box_nonce'], basename(__FILE__))) {
        return $post_id;
    }

    //Check autosave
    if (defined('DOING_AUTOSAVE') && DOING_AUTOSAVE) {
        return $post_id;
    }

    //Check permissions
    if ('page' == $_POST['post_type']) {
        if (!current_user_can('edit_page', $post_id)) {
            return $post_id;
        }
    } elseif (!current_user_can('edit_post', $post_id)) {
        return $post_id;
    }

    foreach ($meta_box[$post->post_type]['fields'] as $field) {
        $old = get_post_meta($post_id, $field['id'], true);
        $new = $_POST[$field['id']];

        if ($new && $new != $old) {
            update_post_meta($post_id, $field['id'], $new);
        } elseif ('' == $new && $old) {
            delete_post_meta($post_id, $field['id'], $old);
        }
    }
}

add_action('save_post', 'kjm_save_data');

    The data does save but this currently just returns the first two static options plus one with the most recent URL from the $attachments query.

Viewing 1 replies (of 1 total)
  • The topic ‘Dynamic list of radio options in custom field’ is closed to new replies.