小编Pyk*_*ler的帖子

通过Putty使用ViM而不是我得到的数字时,数字键盘无法正常工作

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我不能手动或自动填充新保存的对象上的创建者字段...我能找到的唯一方法是重新查询我已经拥有的我不想做的对象.

这是设置:

var userSchema = new mongoose.Schema({   
  name: String,
});
var User = db.model('User', userSchema);

var bookSchema = new mongoose.Schema({
  _creator: { type: mongoose.Schema.Types.ObjectId, ref: 'User' },
  description: String,
});
var Book = db.model('Book', bookSchema);

这是我拉我的头发的地方

var user = new User();
user.save(function(err) {
    var book = new Book({
        _creator: user,
    });
    book.save(function(err){
        console.log(book._creator); // is just an object id
        book._creator = user; // still only attaches the object id due to Mongoose magic
        console.log(book._creator); // Again: is just an object …

为什么这不起作用

handler500 = TemplateView.as_view(template_name="500.html")

我得到以下异常:

Traceback (most recent call last):
  File "/usr/lib/python2.6/wsgiref/handlers.py", line 94, in run    
    self.finish_response()
  File "/usr/lib/python2.6/wsgiref/handlers.py", line 134, in finish_response
    for data in self.result:
  File "/home/hatem/projects/leadsift_app/.virtualenv/lib/python2.6/site-packages/django/template/response.py", line 117, in __iter__
    raise ContentNotRenderedError('The response content must be 'ContentNotRenderedError: The response content must be rendered before it can be iterated over.

我发现这组笔记描述了你在脚下射击自己使用基于类的视图,为什么会这样？

编辑:我最终使用了这个...但我仍然希望那里有人会告诉我如何获得原始的oneliner或类似的工作

class Handler500(TemplateView):
    template_name = "500.html"  
    @classmethod
    def as_error_view(cls):
        v = cls.as_view()
        def view(request):
            r = v(request)
            r.render()
            return r
        return view
handler500 = Handler500.as_error_view()

这样的事情在Apache中是可能的......(即重定向到外部URL,导致传递403错误的路径)

ErrorDocument 403 http://www.sample.com/{{REDIRECT_URL}}

我有一个文本区域,我正在与GoInstant同步.这是代码的样子:

var myRoom = platform.room('myRoom');
var myKey = myRoom('myKey');

// Listen to set events on the platform key and update a textarea
myKey.on('set', function(textAreaContent) {
  $('textarea').val(textAreaContent);
});

// When the textarea changes, set the platform key
$('textarea').on('change', function(){
  var textAreaContent = $(this).val();
  myKey.set(textAreaContent, function(err) {
    if (err) throw err;
  });
})

这会创建一个无限循环,当更新一个文本字段时,即当更改textarea的值时,这会触发一个平台密钥更新,从而无限地更改textarea的值...

编辑:基于最佳答案我想出了以下构造函数:

function BounceProtection() {
  var remoteUpdate = false; // remote toggle
  this.local = function(cb) {
    if (remoteUpdate) return;
    cb();
  };
  this.remote = function(cb) {
    remoteUpdate = …