Question

我有一个自定义Django用户架构来管理角色或用户类型：

StudentProfile
ProfessorProfile
ExecutiveProfile

由于我的AbstractBaseUser模型的一部分保持如此：

class User(AbstractBaseUser, PermissionsMixin):

    email = models.EmailField(unique=True)
    username = models.CharField(max_length=40, unique=True)
    slug = models.SlugField(max_length=100, blank=True)
    is_student = models.BooleanField(default=False)
    is_professor = models.BooleanField(default=False)
    is_executive = models.BooleanField(default=False)

    other fields ...

我有get_student_profile()，get_professor_profile()和get_executive_profile()方法来获取配置文件用户数据。

我在我的自定义模型save()中覆盖User方法，以便在创建用户时检查is_student或is_professor或is_executive时保存配置文件数据，他们的数据将保存在各自的型号：

class StudentProfile(models.Model):
    user = models.OneToOneField(User,on_delete=models.CASCADE)
    slug = models.SlugField(max_length=100,blank=True)
    origin_education_school = models.CharField(max_length=128)
    current_education_school = models.CharField(max_length=128)
    extra_occupation = models.CharField(max_length=128)

class ProfessorProfile(models.Model):
    CATHEDRAL_PROFESSOR = 'CATHEDRAL'
    RESEARCH_PROFESSOR = 'RESEARCH'
    INSTITUTIONAL_DIRECTIVE = 'DIRECTIVE'

    OCCUPATION_CHOICES = (
        (CATHEDRAL_PROFESSOR, 'Cathedral Professor'),
        (RESEARCH_PROFESSOR, 'Research Professor'),
        (INSTITUTIONAL_DIRECTIVE, 'Institutional Directive'),
    )
    user = models.OneToOneField(User,on_delete=models.CASCADE)
    slug = models.SlugField(max_length=100,blank=True)
    occupation = models.CharField(max_length=255,blank = False)

class ExecutiveProfile(models.Model):
    user = models.OneToOneField(User,on_delete=models.CASCADE)
    slug = models.SlugField(max_length=100, blank=True)
    occupation = models.CharField(max_length=255,blank = False)
    enterprise_name = models.CharField(max_length=255,blank = False)

我有每个配置文件用户的表单

class UserUpdateForm(forms.ModelForm):
    class Meta:
        widgets = {'gender':forms.RadioSelect,}
        fields = ("username", "email", "is_student",           "is_professor", "is_executive",)
        model = get_user_model() #My model User

class StudentProfileForm(forms.ModelForm):
    class Meta:
        model = StudentProfile
        fields = ('origin_education_school',current_education_school',
            'extra_occupation')

class ProfessorProfileForm(forms.ModelForm):
    class Meta:
        model = ProfessorProfile
        fields = ('occupation',)

class ExecutiveProfileForm(forms.ModelForm):
    class Meta:
        model = ExecutiveProfile
        fields = ('occupation', 'enterprise_name', 'culturals_arthistic','ecological')

我有此网址可以访问个人资料用户

url(r"^profile/(?P<slug>[\w\-]+)/$",
        views.AccountProfilesView.as_view(
            model=ProfessorProfile),
            name='profile'
    ),

在我的AccountProfilesView我管理个人资料表单并将其发送到模板

class AccountProfilesView(LoginRequiredMixin, UpdateView):
    # All users can access this view
    model = get_user_model()
    success_url = reverse_lazy('dashboard')
    template_name = 'accounts/profile_form.html'
    fields = '__all__'

    def get_context_data(self, **kwargs):
        context = super(AccountProfilesView, self).get_context_data(**kwargs)
        user = self.request.user

        if not self.request.POST:
            if user.is_student:
                profile = user.get_student_profile()
                context['userprofile'] = profile
                context['form_student'] = forms.StudentProfileForm()
            elif user.is_professor:
                profile = user.get_professor_profile()
                context['userprofile'] = profile
                context['form_professor'] = forms.ProfessorProfileForm()
                print ("profesor form is", context['form_professor'])
            elif user.is_executive:
                profile = user.get_executive_profile()
                context['userprofile'] = profile
                context['form_executive'] = forms.ExecutiveProfileForm()
            elif user.is_student and user.is_professor and user.is_executive:
                student_profile = user.get_student_profile()
                professor_profile = user.get_professor_profile()
                executive_profile = user.get_executive_profile()
                context['student_profile'] = student_profile
                context['professor_profile'] = professor_profile
                context['executive_form'] = executive_profile

                student_form = forms.StudentProfileForm()
                professor_form = forms.ProfessorProfileForm()

                executive_form = forms.ExecutiveProfileForm()

                context['form_student'] = student_form
                context['form_professor'] = professor_form
                context['form_executive'] = executive_form
        return context

    def post(self, request, *args, **kwargs):
        self.object = self.get_object()
        context = super(AccountProfilesView, self).post(request, *args, **kwargs)
        user = self.request.user
        if user.is_student:
            context['form_student'] = forms.StudentProfileForm(self.request.POST)
        elif user.is_professor:
            context['form_professor'] = forms.ProfessorProfileForm(self.request.POST)
        elif user.is_executive:
            context['form_executive'] = forms.ExecutiveProfileForm(self.request.POST)

        elif user.is_student and user.is_professor and user.is_executive:
            context['form_student'] = forms.StudentProfileForm(self.request.POST)
            context['form_professor'] = forms.ProfessorProfileForm(self.request.POST)
            context['form_executive'] = forms.ExecutiveProfileForm(self.request.POST)

        return context

    def form_valid(self, form):
        context = self.get_context_data(form=form)
        user = self.request.user
        user = form.save()
        if user.is_student:
            student = context['form_student'].save(commit=False)
            student.user = user
            student.save()
        elif user.is_professor:
            professor = context['form_professor'].save(commit=False)
            professor.user = user
            professor.save()
        elif user.is_executive:
            executive = context['form_executive'].save(commit=False)
            executive.user = user
            executive.save()

        elif user.is_student and user.is_professor and user.is_executive:
            student = context['form_student'].save(commit=False)
            student.user = user
            student.save()

            professor = context['form_professor'].save(commit=False)
            professor.user = user
            professor.save()

            executive = context['form_executive'].save(commit=False)
            executive.user = user
            executive.save()
        return super(AccountProfilesView, self).form_valid(form)

get_context_data()方法中context['form_professor'] = forms.ProfessorProfileForm()和context['form_executive'] = forms.ExecutiveProfileForm()未传递给模板的情况发生了什么

当我创建具有学生资料（is_student）或教授资料（is_professor）或执行资料（is_executive）的用户时，一切正常，这对用户来说是正常的通过分隔的配置文件（仅具有一个配置文件的用户），呈现形式配置文件根据要分配的字段显示表单。

从这个意义上讲，在get_context_data()部分中，以下代码可以正常工作并传递表单：

if user.is_student:
    profile = user.get_student_profile()
    context['userprofile'] = profile
    context['form_student'] = forms.StudentProfileForm()
elif user.is_professor:
    profile = user.get_professor_profile()
    context['userprofile'] = profile
    context['form_professor'] = forms.ProfessorProfileForm()
    print ("profesor form is", context['form_professor'])
elif user.is_executive:
    profile = user.get_executive_profile()
    context['userprofile'] = profile
    context['form_executive'] = forms.ExecutiveProfileForm()

但是当我创建一个已选中三个配置文件的用户（is_student，is_professor，is_executive）时，只需传递context['form_student'] = forms.StudentProfileForm()

我显示数据的模板是：

{% extends 'layout.html' %}
{% load bootstrap3 %}
{% block title_tag %}Accounts | Profile | iHost {{ block.super }}{% endblock %}
{% block body_content %}
<div class="container">
    <h1>My Profile</h1>
    <form method="POST">
        {% csrf_token %}

        # I ask for user profile of a separate way

        # Student Profile User  
        {% if userprofile.user.is_student %}
        <br/><hr>
            Student form
            {% bootstrap_form form_student %}
        {% endif %}

        # Professor Profile User  
        {% if userprofile.user.is_professor %}
            {{ form_professor.as_p }}
        {% endif %}

        # Executive Profile User       
        {% if userprofile.user.is_executive %}  
            {{ form_executive.as_p }}
           {% comment %} {% bootstrap_form form_executive %}{% endcomment %}
        {% endif %}

        # I ask for an user with three profiles

        {% if userprofile.user.is_student  %}
        <br/><hr>
        Student form
            {% if userprofile.user.is_professor %}
                {% if userprofile.user.is_executive %}
                    {% bootstrap_form form_student %}
                    <br/><hr>
                    Professor form does not arrive
                    {{ form_professor.as_p }}
                    {% comment %}  {% bootstrap_form form_professor %}{% endcomment %}
                    <br/><hr>
                    Executive form does not arrive
                    {{ form_executive.as_p }}    
                    {% comment %}
                    {% bootstrap_form form_student %}
                    {% bootstrap_form form_professor %}
                    {% endcomment %}         
                {% endif %}
            {% endif %}
        {% endif %}
<br /><br /><br />

        <input type="submit" value="Save Changes" class="btn btn-default">
    </form>
</div>

{% endblock %}

当我与具有三个配置文件的用户签名并且我呈现配置文件表单时，我得到与呈现的表单相关的此行为。 form_professor和form_executive未呈现

由于这个原因，我认为教授和执行形式实例没有传递给模板，

此问题也已经过验证，因为如果我删除了评论并在我的模板中使用了django-bootstrap3应用，则无法获得form_professor和form_executive个实例

form_professor未到达模板
form_executive未到达模板

此外，虽然我认为我可以在模板中更好地执行条件逻辑。

这里发生了什么事。我的想法是可以在一个模板中根据配置文件将配置文件表单呈现给用户。

我非常感谢他们的支持。

<小时/> 的更新

根据下面的@Rohan答案，确实，el ... if声明是问题的根源。现在表格呈现良好。

我的AccountProfilesView以这种方式停留：

class AccountProfilesView(LoginRequiredMixin, UpdateView):
    # All users can access this view
    model = get_user_model()
    #success_url = reverse_lazy('dashboard')
    template_name = 'accounts/profile_form.html'
    fields = '__all__'

    def get_context_data(self, **kwargs):
        context = super(AccountProfilesView, self).get_context_data(**kwargs)
        user = self.request.user

        if not self.request.POST:
            if user.is_student:
                profile = user.get_student_profile()
                context['userprofile'] = profile
                context['form_student'] = forms.StudentProfileForm()
            if user.is_professor:
                profile = user.get_professor_profile()
                context['userprofile'] = profile
                context['form_professor'] = forms.ProfessorProfileForm()
                print ("profesor form is", context['form_professor'])
            if user.is_executive:
                profile = user.get_executive_profile()
                context['userprofile'] = profile
                context['form_executive'] = forms.ExecutiveProfileForm()
        return context

    def post(self, request, *args, **kwargs):
        self.object = self.get_object()
        context = super(AccountProfilesView, self).post(request, *args, **kwargs)
        user = self.request.user
        if user.is_student:
            context['form_student'] = forms.StudentProfileForm(
                self.request.POST)
        if user.is_professor:
            context['form_professor'] = forms.ProfessorProfileForm(
                self.request.POST)
        if user.is_executive:
            context['form_executive'] = forms.ExecutiveProfileForm(
                self.request.POST)
        return context

    def form_valid(self, form):
        context = self.get_context_data(form=form)
        user = self.request.user
        user = form.save()
        if user.is_student:
            student = context['form_student'].save(commit=False)
            student.user = user
            student.save()
        if user.is_professor:
            professor = context['form_professor'].save(commit=False)
            professor.user = user
            professor.save()
        if user.is_executive:
            executive = context['form_executive'].save(commit=False)
            executive.user = user
            executive.save()
        return super(AccountProfilesView, self).form_valid(form)

    def get_success_url(self):
        return reverse('dashboard')

但是现在，当我想保存三个配置文件的表单部署产品时，我收到此错误消息。

File "/home/bgarcial/workspace/ihost_project/accounts/views.py", line 181, in post
    context['form_student'] = forms.StudentProfileForm(self.request.POST)
  File "/home/bgarcial/.virtualenvs/ihost/lib/python3.5/site-packages/django/http/response.py", line 142, in __setitem__
    value = self._convert_to_charset(value, 'latin-1', mime_encode=True)
  File "/home/bgarcial/.virtualenvs/ihost/lib/python3.5/site-packages/django/http/response.py", line 115, in _convert_to_charset
    raise BadHeaderError("Header values can't contain newlines (got %r)" % value)
django.http.response.BadHeaderError: Header values can't contain newlines (got '<tr><th><label for="id_origin_education_school">Origin education institute:</label></th><td><input id="id_origin_education_school" maxlength="128" name="origin_education_school" type="text" value="Universidad CES, Escuela de Ingeniería" required /></td></tr>\n<tr><th><label for="id_current_education_school">Current education institute:</label></th><td><input id="id_current_education_school" maxlength="128" name="current_education_school" type="text" value="Universidad CES" required /></td></tr>\n<tr><th><label for="id_extra_occupation">Extra occupation:</label></th><td><input id="id_extra_occupation" maxlength="128" name="extra_occupation" type="text" value="Networker" required /></td></tr>')
[08/Apr/2017 16:45:05] "POST /accounts/profile/milena/ HTTP/1.1" 500 108439

当表单要渲染时有一些不方便，我确保用POST方法输入的数据填充这个表单，发生错误，我得到这个屏幕：

Answer 1

get_context_data函数中的python代码存在问题。您不应使用if..elif..添加所需的表单。如果用户拥有所有个人资料，则使用您的代码，代码只会进入第一个if并仅添加学生个人资料表单。

因此，对于所有类型的配置文件，您应该有单独的if语句。在这种情况下，对于所有类型，您不需要if and {。}}。

所以将代码更改为

if user.is_student:
    profile = user.get_student_profile()
    context['userprofile'] = profile
    context['form_student'] = forms.StudentProfileForm()

#NOTE: no elif, only if
if user.is_professor:
    profile = user.get_professor_profile()
    context['userprofile'] = profile
    context['form_professor'] = forms.ProfessorProfileForm()
    print ("profesor form is", context['form_professor'])

if user.is_executive:
    profile = user.get_executive_profile()
    context['userprofile'] = profile
    context['form_executive'] = forms.ExecutiveProfileForm()

# NO need for last if user.is_student and user.is_professor and user.is_executive:

将上下文[]中的多个Django表单传递给模板

1 个答案: