Django重复vars/cache问题?

我正在尝试为Django构建一个更好/更强大的表单类。除了这些子窗体,它工作得很好。实际上,它在我重新启动Apache之后就可以很好地工作,但是在我刷新页面几次之后,我的HTML输出开始如下所示:

<input class="text" type="text" id="pickup_addr-pickup_addr-pickup_addr-id-pickup_addr-venue" value="" name="pickup_addr-pickup_addr-pickup_addr-pickup_addr-venue" />

这个 pickup_addr- 部分开始重复多次。我在找环 prefix 可能导致这种情况发生的代码,但是刷新页面时输出甚至不一致,所以我认为有些东西正在缓存到某个地方,但我甚至无法想象这是怎么可能的。这个 前缀 初始化类时应重置var,否?除非是某种原因 不 初始化什么?

class Form(object):
    count = 0
    def __init__(self, data={}, prefix='', action='', id=None, multiple=False):
        self.fields = {}
        self.subforms = {}
        self.data = {}
        self.action = action
        self.id = fnn(id, 'form%d' % Form.count)
        self.errors = []
        self.valid = True
        if not empty(prefix) and prefix[-1:] not in ('-','_'): prefix += '-'

        for name, field in inspect.getmembers(self, lambda m: isinstance(m, Field)):
            if name[:2] == '__': continue
            field_name = fnn(field.name, name)
            field.label = fnn(field.label, humanize(field_name))
            field.name = field.widget.name = prefix + field_name + ife(multiple, '[]')
            field.id = field.auto_id = field.widget.id = ife(field.id==None, 'id-') + prefix + fnn(field.id, field_name) + ife(multiple, Form.count)
            field.errors = []

            val = fnn(field.widget.get_value(data), field.default)

            if isinstance(val, basestring):
                try:
                    val = field.coerce(field.format(val))
                except Exception, err:
                    self.valid = False
                    field.errors.append(escape_html(err))

            field.val = self.data[name] = field.widget.val = val

            for rule in field.rules:
                rule.fields = self.fields
                rule.val = field.val
                rule.name = field.name

            self.fields[name] = field

        for name, form in inspect.getmembers(self, lambda m: ispropersubclass(m, Form)):
            if name[:2] == '__': continue
            self.subforms[name] = self.__dict__[name] = form(data=data, prefix='%s%s-' % (prefix, name))

        Form.count += 1  

如果您需要更多代码,请告诉我…我知道很多,但我就是不知道是什么造成的!我甚至没有使用任何缓存中间件。

复制/克隆字段首先会提供此输出:

<label for="None">None</label>
<input class="text" type="text" id="id-pickup_address-venue" value="" name="pickup_address-venue" />

field.name 和 field.label 以完全相同的方式设置…事实上, field.id 正确显示在 <input> 但当我试图打印标签时,同样的值突然消失了……区别在于 <输入& GT; 位由打印 Widget 类,而 label 直接从模板打印…我想是……哦,我明白了, 那个 一个是指未设置的类级/静态字段,而不是实例字段…