gmw_update_post_type_post_location example

gmwUpdatePostLocationGist.php

/* 
This example can be used with any post type.

The update location function is triggered using the 
save_post_{post-type-name} action which fires every time 
a new post is created or an existing post is updated.

The action hook passes the argument $post_id into the update location function.

Assuming that the address entered in the front end form is saved via custom field 
we can easily pull it using get_post_meta function and pass it to the update location function. 

Otherwise, if the address is saved somewhere else ( ex custom table )
you will need to pull it directly from the database 
unless there is a function provided for that ( maybe when using a different plugin ).

The example below I will simply use the post type "post" 
and the custom field "address" as the address holder.
*/

//rename your custom function as you wish ( or leave it as is ).
function gmw_update_post_type_post_location(  $post_id ) {

	// Return if it's a post revision.
	if ( false !== wp_is_post_revision( $post_id ) ) {
		return;
	}

	// check autosave.
	if ( defined( 'DOING_AUTOSAVE' ) && DOING_AUTOSAVE ) {
		return;
	}

	// check if user can edit post.
	if ( ! current_user_can( 'edit_post', $post_id ) ) {
		return;
	}

	// get the address from the custom field "address".
	$address = get_post_meta( $post_id, 'address', true );

	// varify that address exists.
	if ( empty( $address ) ) {
		return;
	}

	// verify the updater function.
	if ( ! function_exists( 'gmw_update_post_location' ) ) {
		return;
	}

	//run the udpate location function
	gmw_update_post_location( $post_id, $address );
}
//execute the function whenever post type is being updated
add_action( 'save_post_post', 'gmw_update_post_type_post_location' );