events meta boxes
class UGS_Events_Meta_Box {
public function __construct() {
if ( is_admin() ) {
add_action( 'load-post.php', array( $this, 'init_metabox' ) );
add_action( 'load-post-new.php', array( $this, 'init_metabox' ) );
}
}
public function init_metabox() {
add_action( 'add_meta_boxes', array( $this, 'add_metabox' ) );
add_action( 'save_post', array( $this, 'save_metabox' ), 10, 2 );
}
public function add_metabox() {
add_meta_box(
'ugs_events',
__( 'Event Information', 'ugs_events-text_domain' ),
array( $this, 'render_metabox' ),
'ugs_events',
'advanced',
'default'
);
}
public function render_metabox( $post ) {
// Add nonce for security and authentication.
wp_nonce_field( 'ugs_ev_nonce_action', 'ugs_ev_nonce' );
// Retrieve an existing value from the database.
$ugs_ev_event_id = get_post_meta( $post->ID, 'ugs_ev_event_id', true );
$ugs_ev_eventinstance_id = get_post_meta( $post->ID, 'ugs_ev_eventinstance_id', true );
$ugs_ev_id = get_post_meta( $post->ID, 'ugs_ev_id', true );
$ugs_ev_subtitle = get_post_meta( $post->ID, 'ugs_ev_subtitle', true );
$ugs_ev_location = get_post_meta( $post->ID, 'ugs_ev_location', true );
$ugs_ev_starts = get_post_meta( $post->ID, 'ugs_ev_starts', true );
$ugs_ev_ends = get_post_meta( $post->ID, 'ugs_ev_ends', true );
$ugs_ev_ongoing = get_post_meta( $post->ID, 'ugs_ev_ongoing', true );
$ugs_ev_category = get_post_meta( $post->ID, 'ugs_ev_category', true );
// Set default values.
if( empty( $ugs_ev_event_id ) ) $ugs_ev_event_id = '';
if( empty( $ugs_ev_eventinstance_id ) ) $ugs_ev_eventinstance_id = '';
if( empty( $ugs_ev_id ) ) $ugs_ev_id = '';
if( empty( $ugs_ev_subtitle ) ) $ugs_ev_subtitle = '';
if( empty( $ugs_ev_location ) ) $ugs_ev_location = '';
if( empty( $ugs_ev_starts ) ) $ugs_ev_starts = '';
if( empty( $ugs_ev_ends ) ) $ugs_ev_ends = '';
if( empty( $ugs_ev_ongoing ) ) $ugs_ev_ongoing = '';
if( empty( $ugs_ev_category ) ) $ugs_ev_category = '';
// Form fields.
echo '<table class="form-table">';
echo ' <tr>';
echo ' <th><label for="ugs_ev_event_id" class="ugs_ev_event_id_label">' . __( 'Event ID', 'ugs_events-text_domain' ) . '</label></th>';
echo ' <td>';
echo ' <input type="number" id="ugs_ev_event_id" name="ugs_ev_event_id" class="ugs_ev_event_id_field" placeholder="' . esc_attr__( '', 'ugs_events-text_domain' ) . '" value="' . esc_attr( $ugs_ev_event_id ) . '">';
echo ' <p class="description">' . __( 'Event ID', 'ugs_events-text_domain' ) . '</p>';
echo ' </td>';
echo ' </tr>';
echo ' <tr>';
echo ' <th><label for="ugs_ev_eventinstance_id" class="ugs_ev_eventinstance_id_label">' . __( 'Event Instance ID', 'ugs_events-text_domain' ) . '</label></th>';
echo ' <td>';
echo ' <input type="number" id="ugs_ev_eventinstance_id" name="ugs_ev_eventinstance_id" class="ugs_ev_eventinstance_id_field" placeholder="' . esc_attr__( '', 'ugs_events-text_domain' ) . '" value="' . esc_attr( $ugs_ev_eventinstance_id ) . '">';
echo ' <p class="description">' . __( 'Event Instance ID', 'ugs_events-text_domain' ) . '</p>';
echo ' </td>';
echo ' </tr>';
echo ' <tr>';
echo ' <th><label for="ugs_ev_id" class="ugs_ev_id_label">' . __( 'ID', 'ugs_events-text_domain' ) . '</label></th>';
echo ' <td>';
echo ' <input type="number" id="ugs_ev_id" name="ugs_ev_id" class="ugs_ev_id_field" placeholder="' . esc_attr__( '', 'ugs_events-text_domain' ) . '" value="' . esc_attr( $ugs_ev_id ) . '">';
echo ' <p class="description">' . __( 'ID', 'ugs_events-text_domain' ) . '</p>';
echo ' </td>';
echo ' </tr>';
echo ' <tr>';
echo ' <th><label for="ugs_ev_subtitle" class="ugs_ev_subtitle_label">' . __( 'Subtitle', 'ugs_events-text_domain' ) . '</label></th>';
echo ' <td>';
echo ' <input type="text" id="ugs_ev_subtitle" name="ugs_ev_subtitle" class="ugs_ev_subtitle_field" placeholder="' . esc_attr__( '', 'ugs_events-text_domain' ) . '" value="' . esc_attr( $ugs_ev_subtitle ) . '">';
echo ' <p class="description">' . __( 'Subtitle', 'ugs_events-text_domain' ) . '</p>';
echo ' </td>';
echo ' </tr>';
echo ' <tr>';
echo ' <th><label for="ugs_ev_location" class="ugs_ev_location_label">' . __( 'Location', 'ugs_events-text_domain' ) . '</label></th>';
echo ' <td>';
echo ' <input type="text" id="ugs_ev_location" name="ugs_ev_location" class="ugs_ev_location_field" placeholder="' . esc_attr__( '', 'ugs_events-text_domain' ) . '" value="' . esc_attr( $ugs_ev_location ) . '">';
echo ' <p class="description">' . __( 'Location of Event', 'ugs_events-text_domain' ) . '</p>';
echo ' </td>';
echo ' </tr>';
echo ' <tr>';
echo ' <th><label for="ugs_ev_starts" class="ugs_ev_starts_label">' . __( 'Starts', 'ugs_events-text_domain' ) . '</label></th>';
echo ' <td>';
echo ' <input type="text" id="ugs_ev_starts" name="ugs_ev_starts" class="ugs_ev_starts_field" placeholder="' . esc_attr__( '', 'ugs_events-text_domain' ) . '" value="' . esc_attr( $ugs_ev_starts ) . '">';
echo ' <p class="description">' . __( 'Event Start Time and Date', 'ugs_events-text_domain' ) . '</p>';
echo ' </td>';
echo ' </tr>';
echo ' <tr>';
echo ' <th><label for="ugs_ev_ends" class="ugs_ev_ends_label">' . __( 'Ends', 'ugs_events-text_domain' ) . '</label></th>';
echo ' <td>';
echo ' <input type="text" id="ugs_ev_ends" name="ugs_ev_ends" class="ugs_ev_ends_field" placeholder="' . esc_attr__( '', 'ugs_events-text_domain' ) . '" value="' . esc_attr( $ugs_ev_ends ) . '">';
echo ' <p class="description">' . __( 'Event End Time', 'ugs_events-text_domain' ) . '</p>';
echo ' </td>';
echo ' </tr>';
echo ' <tr>';
echo ' <th><label for="ugs_ev_ongoing" class="ugs_ev_ongoing_label">' . __( 'Ongoing', 'ugs_events-text_domain' ) . '</label></th>';
echo ' <td>';
echo ' <label><input type="checkbox" id="ugs_ev_ongoing" name="ugs_ev_ongoing" class="ugs_ev_ongoing_field" value="' . $ugs_ev_ongoing . '" ' . checked( $ugs_ev_ongoing, 'checked', false ) . '> ' . __( '', 'ugs_events-text_domain' ) . '</label>';
echo ' <span class="description">' . __( 'Ongoing', 'ugs_events-text_domain' ) . '</span>';
echo ' </td>';
echo ' </tr>';
echo ' <tr>';
echo ' <th><label for="ugs_ev_category" class="ugs_ev_category_label">' . __( 'Category', 'ugs_events-text_domain' ) . '</label></th>';
echo ' <td>';
echo ' <input type="text" id="ugs_ev_category" name="ugs_ev_category" class="ugs_ev_category_field" placeholder="' . esc_attr__( '', 'ugs_events-text_domain' ) . '" value="' . esc_attr( $ugs_ev_category ) . '">';
echo ' <p class="description">' . __( 'Category', 'ugs_events-text_domain' ) . '</p>';
echo ' </td>';
echo ' </tr>';
echo '</table>';
}
public function save_metabox( $post_id, $post ) {
// Add nonce for security and authentication.
$nonce_name = isset( $_POST['ugs_ev_nonce'] ) ? $_POST['ugs_ev_nonce'] : '';
$nonce_action = 'ugs_ev_nonce_action';
// Check if a nonce is set.
if ( ! isset( $nonce_name ) )
return;
// Check if a nonce is valid.
if ( ! wp_verify_nonce( $nonce_name, $nonce_action ) )
return;
// Check if the user has permissions to save data.
if ( ! current_user_can( 'edit_post', $post_id ) )
return;
// Check if it's not an autosave.
if ( wp_is_post_autosave( $post_id ) )
return;
// Check if it's not a revision.
if ( wp_is_post_revision( $post_id ) )
return;
// Sanitize user input.
$ugs_ev_new_event_id = isset( $_POST[ 'ugs_ev_event_id' ] ) ? floatval( $_POST[ 'ugs_ev_event_id' ] ) : '';
$ugs_ev_new_eventinstance_id = isset( $_POST[ 'ugs_ev_eventinstance_id' ] ) ? floatval( $_POST[ 'ugs_ev_eventinstance_id' ] ) : '';
$ugs_ev_new_id = isset( $_POST[ 'ugs_ev_id' ] ) ? floatval( $_POST[ 'ugs_ev_id' ] ) : '';
$ugs_ev_new_subtitle = isset( $_POST[ 'ugs_ev_subtitle' ] ) ? sanitize_text_field( $_POST[ 'ugs_ev_subtitle' ] ) : '';
$ugs_ev_new_location = isset( $_POST[ 'ugs_ev_location' ] ) ? sanitize_text_field( $_POST[ 'ugs_ev_location' ] ) : '';
$ugs_ev_new_starts = isset( $_POST[ 'ugs_ev_starts' ] ) ? sanitize_text_field( $_POST[ 'ugs_ev_starts' ] ) : '';
$ugs_ev_new_ends = isset( $_POST[ 'ugs_ev_ends' ] ) ? sanitize_text_field( $_POST[ 'ugs_ev_ends' ] ) : '';
$ugs_ev_new_ongoing = isset( $_POST[ 'ugs_ev_ongoing' ] ) ? 'checked' : '';
$ugs_ev_new_category = isset( $_POST[ 'ugs_ev_category' ] ) ? sanitize_text_field( $_POST[ 'ugs_ev_category' ] ) : '';
// Update the meta field in the database.
update_post_meta( $post_id, 'ugs_ev_event_id', $ugs_ev_new_event_id );
update_post_meta( $post_id, 'ugs_ev_eventinstance_id', $ugs_ev_new_eventinstance_id );
update_post_meta( $post_id, 'ugs_ev_id', $ugs_ev_new_id );
update_post_meta( $post_id, 'ugs_ev_subtitle', $ugs_ev_new_subtitle );
update_post_meta( $post_id, 'ugs_ev_location', $ugs_ev_new_location );
update_post_meta( $post_id, 'ugs_ev_starts', $ugs_ev_new_starts );
update_post_meta( $post_id, 'ugs_ev_ends', $ugs_ev_new_ends );
update_post_meta( $post_id, 'ugs_ev_ongoing', $ugs_ev_new_ongoing );
update_post_meta( $post_id, 'ugs_ev_category', $ugs_ev_new_category );
}
}
new UGS_Events_Meta_Box;
Mark Bennett