Add Metaboxes and metafields to your wordpress posts
add_action('add_meta_boxes','mypost_add_custom_box');
add_action('save_post','myplugin_save_postdata');
function mypost_add_custom_box() {
add_meta_box(
'myplugin_sectionid',
__('Post Type Selection','myplugin_textdomain'),
'myplugin_inner_custom_box',
'post'
);
}
function myplugin_inner_custom_box( $post ) {
wp_nonce_field( plugin_basename( __FILE__ ), 'myplugin_noncename' );
// The actual fields for data entry
$scheckval=esc_attr(get_post_meta($post->ID,'slider_post',true));
$pcheckval=esc_attr(get_post_meta($post->ID,'popular_post',true));
if($scheckval=='on')
echo '<input type="checkbox" id="myplugin_slider_field" name="myplugin_slider_field" checked="checked"/>';
else
echo '<input type="checkbox" id="myplugin_slider_field" name="myplugin_slider_field"/>';
echo '<label for="myplugin_slider_field">';
_e("Slider Post", 'myplugin_sdomain' );
echo '</label> ';
if($pcheckval=='on')
echo '<input type="checkbox" id="myplugin_popular_field" name="myplugin_popular_field" checked="checked"/>';
else
echo '<input type="checkbox" id="myplugin_popular_field" name="myplugin_popular_field"/>';
echo '<label for="myplugin_popular_field">';
_e("Popular Post", 'myplugin_pdomain' );
echo '</label>';
}
/* When the post is saved, saves our custom data */
function myplugin_save_postdata( $post_id ) {
// verify if this is an auto save routine.
// If it is our form has not been submitted, so we dont want to do anything
if ( defined( 'DOING_AUTOSAVE' ) && DOING_AUTOSAVE )
return;
// verify this came from the our screen and with proper authorization,
// because save_post can be triggered at other times
if ( !wp_verify_nonce( $_POST['myplugin_noncename'], plugin_basename( __FILE__ ) ) )
return;
// Check permissions
if ( 'page' == $_POST['post_type'] )
{
if ( !current_user_can( 'edit_page', $post_id ) )
return;
}
else
{
if ( !current_user_can( 'edit_post', $post_id ) )
return;
}
// OK, we're authenticated: we need to find and save the data
if($_POST['myplugin_slider_field']=='on')
$smydata=$_POST['myplugin_slider_field'];
else
$smydata='off';
if($_POST['myplugin_popular_field']=='on')
$pmydata=$_POST['myplugin_popular_field'];
else
$pmydata='off';
update_post_meta($post_id,'slider_post',$smydata);
update_post_meta($post_id,'popular_post',$pmydata);
} 