Question

当用户选择一个名称

时，我尝试将id作为参数传递给搜索功能

<input type="text" ng-model="RegionName" placeholder="Region" ng-blur="search(item.id)" uib-typeahead="item as item.name for item in items | filter:$viewValue | limitTo:10" class="form-control" >

我的JSON数据：

json : {"id":"000","name":"value1"},{"id":"001","name":"value2"}

Angularjs代码：

 $scope.search = function (code) {
            alert(code);
  }

我得到的代码未定义。

我的错误在哪里。请提出你的建议。

Answer 1

将Environment: Request Method: POST Request URL: http://127.0.0.1:8000/user-profile/edit/preferences Django Version: 1.11.1 Python Version: 3.5.1 Installed Applications: ['django.contrib.admin', 'django.contrib.auth', 'django.contrib.contenttypes', 'django.contrib.sessions', 'django.contrib.messages', 'django.contrib.staticfiles', 'django.contrib.sites', 'allauth', 'allauth.account', 'allauth.socialaccount', 'dating.dating', 'dating_site'] Installed Middleware: ['django.middleware.security.SecurityMiddleware', 'django.contrib.sessions.middleware.SessionMiddleware', 'django.middleware.common.CommonMiddleware', 'django.middleware.csrf.CsrfViewMiddleware', 'django.contrib.auth.middleware.AuthenticationMiddleware', 'django.contrib.messages.middleware.MessageMiddleware', 'django.middleware.clickjacking.XFrameOptionsMiddleware'] Traceback: File "/venv/lib/python3.5/site-packages/django/core/handlers/exception.py" in inner 41. response = get_response(request) File "/venv/lib/python3.5/site-packages/django/core/handlers/base.py" in _get_response 187. response = self.process_exception_by_middleware(e, request) File "/venv/lib/python3.5/site-packages/django/core/handlers/base.py" in _get_response 185. response = wrapped_callback(request, *callback_args, **callback_kwargs) File "/venv/lib/python3.5/site-packages/django/views/generic/base.py" in view 68. return self.dispatch(request, *args, **kwargs) File "/venv/lib/python3.5/site-packages/django/contrib/auth/mixins.py" in dispatch 56. return super(LoginRequiredMixin, self).dispatch(request, *args, **kwargs) File "/venv/lib/python3.5/site-packages/django/contrib/auth/mixins.py" in dispatch 116. return super(UserPassesTestMixin, self).dispatch(request, *args, **kwargs) File "/venv/lib/python3.5/site-packages/django/views/generic/base.py" in dispatch 88. return handler(request, *args, **kwargs) File "/dating/dating/dating/views/user_profile.py" in post 99. return super(UserProfilePartnerPreferencesUpdateView, self).post(request, *args, **kwargs) File "/venv/lib/python3.5/site-packages/django/views/generic/edit.py" in post 240. return super(BaseUpdateView, self).post(request, *args, **kwargs) File "/venv/lib/python3.5/site-packages/django/views/generic/edit.py" in post 183. return self.form_valid(form) File "/venv/lib/python3.5/site-packages/django/views/generic/edit.py" in form_valid 162. self.object = form.save() File "/venv/lib/python3.5/site-packages/django/forms/models.py" in save 452. self._save_m2m() File "/venv/lib/python3.5/site-packages/django/forms/models.py" in _save_m2m 434. f.save_form_data(self.instance, cleaned_data[f.name]) File "/venv/lib/python3.5/site-packages/django/db/models/fields/related.py" in save_form_data 1686. getattr(instance, self.attname).set(data) File "/venv/lib/python3.5/site-packages/django/db/models/fields/related_descriptors.py" in set 982. objs = tuple(objs) Exception Type: TypeError at /events/dating/user-profile/edit/preferences Exception Value: 'NoneType' object is not iterable更改为ng-blur="search(item.id)，它会起作用。，因为您将数据绑定到另一个属性ng-blur="search(RegionName.id)。

此外，我发现RegionName存在typeahead问题，因此我建议使用use ng-blur。

查看此工作Plunker

将值传递到ng blur函数

1 个答案: