gmaps 未在 rails 4 + gmaps4rails 2.0.3 中定义

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本文介绍了gmaps 未在 rails 4 + gmaps4rails 2.0.3 中定义的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！问题描述

Gmaps4rails 在 rails 4.0.0 中没有定义铁路谷歌地图我正在关注本教程rubydoc.info/gems/gmaps4rails/2.0.4/frames"

1) Gemfile宝石'gmaps4rails'2) 视图页面上的 HTML<div style='width: 800px;'><div id="map" style='width: 800px;高度:400px;'></div>

3)在查看页面<script src="//maps.google/maps/api/js?v=3.13&sensor=false&libraries=geometry" type="text/javascript"></script><script src='//google-maps-utility-library-v3.googlecode/svn/tags/markerclustererplus/2.0.14/src/markerclusterer_packed.js' type='text/javascript'></脚本>您也需要 underscore.js，请参见此处:underscorejs/3) Javascript 源代码如果您有资产管道，请添加以下内容://= 需要下划线//= 需要 gmaps/google如果您没有资产管道，则需要导入 js 或 coffee 文件:rails g gmaps4rails:copy_jsrails g gmaps4rails:copy_coffee4)Javascript代码:创建您的地图:handler = Gmaps.build('Google');handler.buildMap({ provider: {}, internal: {id: 'map'}}, function(){标记 = handler.addMarkers([{纬度":0，"lng": 0,图片": {"url": "addons.cdn.mozilla/img/uploads/addon_icons/13/13028-64.png",宽度":36，高度":36},信息窗口":你好！"}]);handler.bounds.extendWith(markers);handler.fitMapToBounds();});

但是当我检查萤火虫时，它显示Gmaps 未定义"红宝石 2.0.0导轨 4.0.0gmaps4rails 2.0.3

任何建议请回复.....

解决方案

我遇到了这个问题.问题是我在加载核心 gmaps javascript 之前在视图中加载了地图构建 javascript.

您可以通过在您的 javascripts 之后添加一个 yield 并使用 content_for 块将您的地图构建 javascript 放在其他块之后来解决这个问题.像这样:

然后，无论您在何处构建地图，

Gmaps4rails is not define in rails 4.0.0 Google Maps for Rails i am following this tutorial "rubydoc.info/gems/gmaps4rails/2.0.4/frames"

1) Gemfile gem 'gmaps4rails' 2) HTML on view page <div style='width: 800px;'> <div id="map" style='width: 800px; height: 400px;'></div> </div> 3) on view page <script src="//maps.google/maps/api/js?v=3.13&sensor=false&libraries=geometry" type="text/javascript"></script> <script src='//google-maps-utility-library-v3.googlecode/svn/tags/markerclustererplus/2.0.14/src/markerclusterer_packed.js' type='text/javascript'></script> You'll require underscore.js too, see here: underscorejs/ 3) Javascript source code If you have the asset pipeline, add this: //= require underscore //= require gmaps/google If you don't have asset pipeline, you'll need to import the js OR coffee files: rails g gmaps4rails:copy_js rails g gmaps4rails:copy_coffee 4) Javascript code: Create your map: handler = Gmaps.build('Google'); handler.buildMap({ provider: {}, internal: {id: 'map'}}, function(){ markers = handler.addMarkers([ { "lat": 0, "lng": 0, "picture": { "url": "addons.cdn.mozilla/img/uploads/addon_icons/13/13028-64.png", "width": 36, "height": 36 }, "infowindow": "hello!" } ]); handler.bounds.extendWith(markers); handler.fitMapToBounds(); });

But when i am checking at firebug its showing "Gmaps is not defined" Ruby 2.0.0 rails 4.0.0 gmaps4rails 2.0.3

Any suggestion please reply.....

解决方案

I ran into this issue. The problem was that I was loading the map building javascript in the view before I was loading the core gmaps javascript.

You can solve this by add a yield after your javascripts, and using a content_for block to place your map building javascript after the others. Something like this:

and then, wherever you're building your map,

<% content_for :javascripts do %> <script type='text/javascript'> handler = Gmaps.build('Google'); /* rest of maps building JS */ </script> <% end %>

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gmaps 未在 rails 4 + gmaps4rails 2.0.3 中定义

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