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私のレールアプリケーションでは、Googleマップのjavascript APIを使用して部分的に地図をレンダリングしようとしています。基本的に私はGoogleドキュメント（https://developers.google.com/maps/documentation/javascript/examples/places-autocomplete）で説明したのと同じことをやったが、私のAPI要求は何も返されず、マップは表示されない。Googleマップが表示されません
application.html.erb
<!DOCTYPE html>
<html>
<head>
<title>Testt</title>
<script src="https://maps.googleapis.com/maps/api/js?key=AIzaSyHkeUeKHSHKNPUHkAeYHDFE0ZBwGvBF&callback=initMap&libraries=places" async defer></script>
<%= stylesheet_link_tag 'application', media: 'all', 'data-turbolinks-track' => true %>
<%= javascript_include_tag 'application', 'data-turbolinks-track' => true %>
<%= csrf_meta_tags %>
</head>
<body>
<%= yield %>
</body>
</html>
Parialビュー：
<input id="pac-input" class="controls" type="text" placeholder="Enter place">
<div id="type-selector" class="controls">
<input type="radio" name="type" id="changetype-all" checked="checked">
<label for="changetype-all">All</label>
<input type="radio" name="type" id="changetype-establishment">
<label for="changetype-establishment">Establishments</label>
<input type="radio" name="type" id="changetype-address">
<label for="changetype-address">Addresses</label>
<input type="radio" name="type" id="changetype-geocode">
<label for="changetype-geocode">Geocodes</label>
</div>
<div id="map"></div>
JSファイル：
function initMap() {
var map = new google.maps.Map(document.getElementById('map'), {
center: {lat: -33.8688, lng: 151.2195},
zoom: 13
});
var input = /** @type {!HTMLInputElement} */(
document.getElementById('pac-input'));
var types = document.getElementById('type-selector');
map.controls[google.maps.ControlPosition.TOP_LEFT].push(input);
map.controls[google.maps.ControlPosition.TOP_LEFT].push(types);
var autocomplete = new google.maps.places.Autocomplete(input);
autocomplete.bindTo('bounds', map);
var infowindow = new google.maps.InfoWindow();
var marker = new google.maps.Marker({
map: map,
anchorPoint: new google.maps.Point(0, -29)
});
autocomplete.addListener('place_changed', function() {
infowindow.close();
marker.setVisible(false);
var place = autocomplete.getPlace();
if (!place.geometry) {
window.alert("Autocomplete's returned place contains no geometry");
return;
}
// If the place has a geometry, then present it on a map.
if (place.geometry.viewport) {
map.fitBounds(place.geometry.viewport);
} else {
map.setCenter(place.geometry.location);
map.setZoom(17); // Why 17? Because it looks good.
}
marker.setIcon(/** @type {google.maps.Icon} */({
url: place.icon,
size: new google.maps.Size(71, 71),
origin: new google.maps.Point(0, 0),
anchor: new google.maps.Point(17, 34),
scaledSize: new google.maps.Size(35, 35)
}));
marker.setPosition(place.geometry.location);
marker.setVisible(true);
var address = '';
if (place.address_components) {
address = [
(place.address_components[0] && place.address_components[0].short_name || ''),
(place.address_components[1] && place.address_components[1].short_name || ''),
(place.address_components[2] && place.address_components[2].short_name || '')
].join(' ');
}
infowindow.setContent('<div><strong>' + place.name + '</strong><br>' + address);
infowindow.open(map, marker);
});
// Sets a listener on a radio button to change the filter type on Places
// Autocomplete.
function setupClickListener(id, types) {
var radioButton = document.getElementById(id);
radioButton.addEventListener('click', function() {
autocomplete.setTypes(types);
});
}
setupClickListener('changetype-all', []);
setupClickListener('changetype-address', ['address']);
setupClickListener('changetype-establishment', ['establishment']);
setupClickListener('changetype-geocode', ['geocode']);
}