precio en las categorias de vehiculo

class vehicle_type_price {

	public function __construct() {

		if ( is_admin() ) {

			add_action( 'tipos_de_vehiculos_add_form_fields',  array( $this, 'create_screen_fields'), 10, 1 );
			add_action( 'tipos_de_vehiculos_edit_form_fields', array( $this, 'edit_screen_fields' ),  10, 2 );

			add_action( 'created_tipos_de_vehiculos', array( $this, 'save_data' ), 10, 1 );
			add_action( 'edited_tipos_de_vehiculos',  array( $this, 'save_data' ), 10, 1 );

		}

	}

	public function create_screen_fields( $taxonomy ) {

		// Set default values.
		$vtp-vehicle_price = '1.00';

		// Form fields.
		echo '<div class="form-field term-vtp-vehicle_price-wrap">';
		echo '	<label for="vtp-vehicle_price">' . __( 'Precio mínimo', 'innubel' ) . '</label>';
		echo '	<input type="number" id="vtp-vehicle_price" name="vtp-vehicle_price" placeholder="' . esc_attr__( 'Precio mínimo', 'innubel' ) . '" value="' . esc_attr( $vtp-vehicle_price ) . '">';
		echo '	<p class="description">' . __( 'Precio mínimo para calcular el presupuesto', 'innubel' ) . '</p>';
		echo '</div>';

	}

	public function edit_screen_fields( $term, $taxonomy ) {

		// Retrieve an existing value from the database.
		$vtp-vehicle_price = get_term_meta( $term->term_id, 'vtp-vehicle_price', true );

		// Set default values.
		if( empty( $vtp-vehicle_price ) ) $vtp-vehicle_price = '1.00';

		// Form fields.
		echo '<tr class="form-field term-vtp-vehicle_price-wrap">';
		echo '<th scope="row">';
		echo '	<label for="vtp-vehicle_price">' . __( 'Precio mínimo', 'innubel' ) . '</label>';
		echo '</th>';
		echo '<td>';
		echo '	<input type="number" id="vtp-vehicle_price" name="vtp-vehicle_price" placeholder="' . esc_attr__( 'Precio mínimo', 'innubel' ) . '" value="' . esc_attr( $vtp-vehicle_price ) . '">';
		echo '	<p class="description">' . __( 'Precio mínimo para calcular el presupuesto', 'innubel' ) . '</p>';
		echo '</td>';
		echo '</tr>';

	}

	public function save_data( $term_id ) {

		// Sanitize user input.
		$vtp-new_vehicle_price = isset( $_POST[ 'vtp-vehicle_price' ] ) ? floatval( $_POST[ 'vtp-vehicle_price' ] ) : '';

		// Update the meta field in the database.
		update_term_meta( $term_id, 'vtp-vehicle_price', $vtp-new_vehicle_price );

	}

}

new vehicle_type_price;