Reply To: Google Map & City Name

• LucasG

• July 7, 2015 at 12:30 am

Thank you John, it eventually worked, here is my working code :

<?php
function reverse_geocoding($form_data) {
	
	
	$latlng = $latlng = $_POST['fields']['field_123abcd-this-is-my-map-field']['lat'].','.$_POST['fields']['field_123abcd-this-is-my-map-field']['lng'];
	
	// set your API key here
	$server_key = '*****';
	
	// format this string with the appropriate latitude longitude
	$url = 'https://maps.googleapis.com/maps/api/geocode/json?latlng='.$latlng.'&key='.$server_key.'&sensor=true&language=fr';
	
	// make the HTTP request
	$data = @file_get_contents($url);
	// parse the json response
	
	$jsondata = json_decode($data,true);
	

	if(is_array($jsondata )&& $jsondata ['status']=='OK') // this piece of code is looping through each component in ['address_components']
	{
		foreach ($jsondata['results'][0]['address_components'] as $comp) {
			foreach ($comp['types'] as $currType){
				// Here I get all the information I need and store it into vars
				if($currType == 'administrative_area_level_2'){
					$area_level_2 = $comp['long_name'];
				}
				if($currType == 'locality'){
					$locality = $comp['long_name'];
				}
			}
		}
		
	$coord = explode(",", $latlng);
	
	$loc_data = array('city' => $locality,
					'area_level_2' => $area_level_2,
					'lat' => $coord[0],
					'lng' => $coord[1],
					'zoom' => $zoom,
					'address' => $form_data['field_556355e41efef']['address']);
	}
	
	return $loc_data;
	
	
}

function acf_location_data( $post_id ) {
 
		
		$loc_data = reverse_geocoding($_POST['fields']); // I send all the

		$_POST['fields']['field_123abcd-this-is-my-map-field'] = array(); // not sure if necessary, just to clean the data...
		$_POST['fields']['field_123abcd-this-is-my-map-field'] = $loc_data; // insert all the data calculated in the funciton above
		$_POST['fields']['field_456efgh-empty_hidden_field'] = $loc_data['area_level_2']; // here I insert just area_level_2 in order to filter / Order my SQL request later
		
}

// run before ACF saves the $_POST['acf'] data
add_action('acf/save_post', 'acf_location_data', 1);

The update_field function wasn’t working, but step by step I’ve managed to do exactly want I was looking for. I hope this may be useful for someone out there.

Thanks a lot John 🙂

edit : it’s not very clean, but it works…. if I have time i will simplify it to give you a “generic” code 😉