我有一个奇怪的问题:
启动服务器后,我收到此错误:
undefined local variable or method `new_media_path'
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要修复这个,我必须去routes.rb并更改
resources :media
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至
resource :media
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再来一次
resources :media
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它很烦人.任何解决这个问题的想法?
我正在使用browserify创建节点应用程序来模块化前端代码.不幸的是,我无法让Backbone工作,因为它抛出了这个错误:
Uncaught TypeError: Property '$' of object #<Object> is not a function
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在此脚本之前加载jQuery:
var _ = require('underscore'),
Backbone = require('backbone');
// Here, jQuery works fine.
$(function() {
Backbone.history.start();
});
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看起来Backbone在使用browserify时找不到jQuery.
注释嵌入在Post文档中:
{
"_id": ObjectId(12345),
"title": "Cat ate elephant!",
"body": "Lorem ipsum dolor sit amet, consectetur adipiscing elit. Aenean convallis pretium vulputate.",
"comments": [
{"name": "Cat", "body": "MEOW!"},
{"name": "Elephant", "body": "I was eaten by cat, lol!"},
{"name": "Human", "body": "I am hungry!"}
]
}
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帖子和评论之间的关系(在单独的文档中)。帖子有很多评论:
// POST //
{
"_id": ObjectId(12345),
"title": "Cat ate elephant!"
"body": "Lorem ipsum dolor sit amet, consectetur adipiscing elit. Aenean convallis pretium vulputate."
}
// Comments //
{
"_id": ObjectId(...),
"post_id": ObjectId(12345),
"name": …Run Code Online (Sandbox Code Playgroud) 我正在使用socket.io运行express(通过nginx代理)并且片刻之后(应用程序一段时间工作正常)控制台抛出这个:
events.js:71
throw arguments[1]; // Unhandled 'error' event
^
Error: socket hang up
at createHangUpError (http.js:1360:15)
at ServerResponse.OutgoingMessage._writeRaw (http.js:507:26)
at ServerResponse.OutgoingMessage._send (http.js:476:15)
at ServerResponse.OutgoingMessage.write (http.js:749:16)
at XHRPolling.doWrite (/home/xyz/chat/node_modules/socket.io/lib/transports/xhr-polling.js:67:17)
at XHRPolling.HTTPPolling.write (/home/xyz/chat/node_modules/socket.io/lib/transports/http-polling.js:132:8)
at XHRPolling.Transport.onDispatch (/home/xyz/chat/node_modules/socket.io/lib/transport.js:222:10)
at Socket.dispatch (/home/xyz/chat/node_modules/socket.io/lib/socket.js:230:38)
at Socket.packet (/home/xyz/chat/node_modules/socket.io/lib/socket.js:214:10)
at Socket.emit (/home/xyz/chat/node_modules/socket.io/lib/socket.js:368:15)
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有任何想法吗?
是否可以在bcrypt-ruby(has_secure_password) gem中关闭密码确认?
当我单击WebView中的链接时,Android打开浏览器而不是在WebView中更改URL.
这是我的片段,其中WebView是(R.layout.webview仅包含WebView):
package com.example.fragments;
import android.os.Bundle;
import android.support.v4.app.Fragment;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.webkit.WebView;
public class EuDetailsFragment extends Fragment {
private WebView viewer;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
}
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
viewer = (WebView) inflater.inflate(R.layout.webview, container, false);
return viewer;
}
public void updateUrl(String newUrl) {
Log.d("EuDetailsFragment", "Updating url...");
WebView detailsView = (WebView) getView().findViewById(R.id.detailsView);
detailsView.loadUrl(newUrl);
}
}
Run Code Online (Sandbox Code Playgroud) 我想提交一个MySQL查询,可以描述为"如果id列与某个数组x中的任何值匹配,则从*返回所有值".
有没有办法以这种方式在查询中使用数组的全部内容?
Enumerator#peek返回枚举器中的下一个对象.但是如何获得当前对象?
除了使用index(对于数组),我找不到任何其他解决方案.
node.js ×3
android ×1
backbone.js ×1
browserify ×1
enumeration ×1
express ×1
javascript ×1
jquery ×1
mongodb ×1
mysql ×1
nosql ×1
ruby ×1
socket.io ×1
sql ×1