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JQuery自定义验证错误(JQuery custom validation error)

 我使用JQuery验证器面临以下问题：我有一个表单，我使用提供的默认验证规则，一切正常。 但是，只要我添加自定义验证，就会抛出以下错误：  
 
  在Chrome中：未捕获TypeError：无法调用未定义的方法'addMethod' 
 
  在IE8中：'validator'为null或不是对象 
 
  FireFox：没有错误消息，但JQuery默认验证逻辑中断;  
 
 导致错误发生的代码是这个（它位于ready函数内）：  
$().validator.addMethod("defaultInvalid", 
   function(value, element) {   
    alert("validate");
   }
 );
 
 如您所见，我已经评论了回调函数的大部分代码，以消除任何其他错误。 如果我发表评论，一切都会恢复正常。 但是，我想在文本框上使用此自定义规则，必须具有默认值“名字”，并且在提交时，不应允许用户将“名字”作为值发送。 

I am facing the following issue with the JQuery validator: I have a form where I am using the default validation rules provided and everything works fine. Howoever, as soon as I add a custom validation, the following error is thrown: 
 
 in Chrome: Uncaught TypeError: Cannot call method 'addMethod' of undefined
  
 in IE8: 'validator' is null or not an object
 
 FireFox: no error message, but the JQuery default validation logic breaks; 
 
The piece of code which is causing the error to occur is this (it sits inside the ready function): 
$().validator.addMethod("defaultInvalid", 
   function(value, element) {   
    alert("validate");
   }
 );
 
As you see I have commented most of the code of the callback function in order to eliminate any other error. if I comment it, everything goes back to normal. However, I would like to use this customized rule on a text box taht must have the default value of "First name" and on submit it should not allow the user to send "First name" as value.

原文：https://stackoverflow.com/questions/14626467

更新时间：2021-07-25 11:07

最满意答案

 这不是很简单，但我能够解决它。 我从文件中导入了这个我的clean_sessions（）：  
from importlib import import_module
from django.conf import settings
 
 然后，在函数内部，我加载了SessionStore对象：  
SessionStore = import_module(settings.SESSION_ENGINE).SessionStore
 
 从那里，很容易删除会话，留下这样的方法：  
def clean_sessions():
    stored_sessions = Session.objects.all()
    active_users = Request.objects.active_users(seconds=15)
    active_users_ids = [user.id for user in active_users]
    for session in stored_sessions:
        SessionStore = import_module(settings.SESSION_ENGINE).SessionStore
        s = SessionStore(session_key=session.session_key)
        session_uid = session.get_decoded().get('_auth_user_id')
        if not session_uid:
            s.delete()
            continue
        if session_uid not in active_users_ids:
            ## some code ##
            s.delete()
 
 从你正在使用的任何会话引擎加载正确的SessionStore非常重要，否则它将无法从两个地方（DB和缓存）中删除它。 

It wasn't very straightforward but I was able to fix it. I imported this from the file I have my clean_sessions(): 
from importlib import import_module
from django.conf import settings
 
Then, inside the function, I loaded the SessionStore object: 
SessionStore = import_module(settings.SESSION_ENGINE).SessionStore
 
From there, it was very easy to remove the sessions, leaving the method like this: 
def clean_sessions():
    stored_sessions = Session.objects.all()
    active_users = Request.objects.active_users(seconds=15)
    active_users_ids = [user.id for user in active_users]
    for session in stored_sessions:
        SessionStore = import_module(settings.SESSION_ENGINE).SessionStore
        s = SessionStore(session_key=session.session_key)
        session_uid = session.get_decoded().get('_auth_user_id')
        if not session_uid:
            s.delete()
            continue
        if session_uid not in active_users_ids:
            ## some code ##
            s.delete()
 
It's very important to load the right SessionStore from whatever session engine you're using, otherwise it will fail to remove it from both places (DB and cache).

JQuery自定义验证错误(JQuery custom validation error)

最满意答案

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