将坐标从 Google Maps API 发布到数据库

Question

Edit: I solved the problem. Leaving it up in case someone needs something similar in the future.

I am trying to use google map api to get coordinates and save the information in a database. If the user drags the marker then a form is updated with the information. User can also enter the information manually in the form if she wants and the map will be updated with a new marker. Then the user can click submit and the information will be saved in the database.

 <form action="{{ route('YOUR_ROUTE') }}" method="post" enctype="multipart/form-data"> <div class="form-group"> <div style="padding-top: 10px;"> <div id="map-location"></div> </div> {{-- visibility, lat, lng, location --}} <input class="form-control" type="text" name="location_name" id="location_name" placeholder="Location"> <input class="form-control" type="text" name="latitude" id="latitude" placeholder="Latitude" style="max-width: 50%;"> <input class="form-control" type="text" name="longitude" id="longitude" placeholder="Longitude" style="max-width: 50%;"> <button type="submit" class="btn btn-primary">Post</button> <input type="hidden" value="{{ Session::token() }}" name="_token"> </div> </form> <script> //initialise and add the map function initMap(){ // location of midtown manhattan var midtown = {lat: 40.7549, lng: -73.9840}; // the maps centered at midtown var map = new google.maps.Map(document.getElementById('map-location'),{zoom:17, center:midtown}); // the marker var marker = new google.maps.Marker({position: midtown, map: map, draggable: true}); infoWindow = new google.maps.InfoWindow; // Try HTML5 geolocation. if (navigator.geolocation) { navigator.geolocation.getCurrentPosition(function(position) { var pos = { lat: position.coords.latitude, lng: position.coords.longitude }; marker.setPosition(pos); map.setCenter(pos); }, function() { handleLocationError(true, infoWindow, map.getCenter()); }); } else { // Browser doesn't support Geolocation handleLocationError(false, infoWindow, map.getCenter()); } function handleLocationError(browserHasGeolocation, infoWindow, pos) { infoWindow.setPosition(pos); infoWindow.setContent(browserHasGeolocation ? 'Error: The Geolocation service failed.' : 'Error: Your browser doesn\\'t support geolocation.'); infoWindow.open(map); } // dragged event of the marker google.maps.event.addListener(marker, 'dragend', function(){ var lat = marker.getPosition().lat(); var lng = marker.getPosition().lng(); var address; $('#latitude').val(lat); $('#longitude').val(lng); var geocoder = new google.maps.Geocoder(); geocoder.geocode({latLng: marker.getPosition()}, function(result,status){ if(status == google.maps.GeocoderStatus.OK){ address = result[0].formatted_address; // console.log(address); $('#location_name').val(address); } else{ console.log('Geocode was not successful for the following reason: ' + status); } }); }); // when the place is changed in the location box the map updates searchBox = new google.maps.places.SearchBox(document.querySelector( '#location_name' )); google.maps.event.addListener(searchBox, 'places_changed', function(){ var places = searchBox.getPlaces(), bounds = new google.maps.LatLngBounds(); for(var i = 0; place = places[i]; i++){ bounds.extend(place.geometry.location); marker.setPosition(place.geometry.location); } map.fitBounds(bounds); map.setZoom(15); var lat = marker.getPosition().lat(); var lng = marker.getPosition().lng(); $('#latitude').val(lat); $('#longitude').val(lng); }); } </script> <script async defer src="https://maps.googleapis.com/maps/api/js?key=YOUR_KEY&libraries=places&callback=initMap"></script>

Answer 1

I updated my first post with the code that is working for me.

I couldn't update the map with the information from the form because I didn't include the places library while loading the Maps JavaScript API.

I couldn't see the updated coordinates after dragging the map marker because I didn't enable the geocoding api and didn't create a billing account with google cloud. I also restricted my API key.

Hope this helps.