django表单日期输入字段未显示错误

Question

我在注册页面上有一个表格，该表格需要输入日期以及其他一些字段。如果用户将非valid信息输入日期字段（如字符串）并提交表单，则Django将表单拒绝为非valid，但是我在页面上没有任何错误消息 - 但是对于其他字段表格，我确实会收到错误消息（例如：密码不匹配，用户已经注册等）。

这是表格的样子： 链接到注册形式的图像

这是我的 forms.py file - 我正在使用两个类在注册页面上创建表单：

from django import forms
from users.models import Profile
from django.contrib.auth.models import User
from django.contrib.auth.forms import UserCreationForm


class CustomUserCreationForm(UserCreationForm):
    email = forms.EmailField(required=True)

    class Meta(UserCreationForm.Meta):
        model = User
        #fields = UserCreationForm.Meta.fields + ("email",)
        fields = ['username', 'email', 'password1', 'password2']


class EmployeeForm(forms.ModelForm):

    hireDate = forms.DateField(
        required=False,
        error_messages={'required': 'Please enter a valid date'},
        input_formats=[
            '%Y-%m-%d',  # '2006-10-25'
            '%m/%d/%Y',  # '10/25/2006'
            '%m/%d/%y'
        ])  # '10/25/06')

    class Meta:
        model = Profile
        fields = ['hireDate', 'employeeNumber']

这是 models.py 带有配置文件的模型的字段：

from django.db import models
from django.contrib.auth.models import User
from django.db.models.signals import post_save
from django.dispatch import receiver


class Profile(models.Model):
    user = models.OneToOneField(User, on_delete=models.CASCADE)
    #confirmed = models.BooleanField("Confirmed", default=False)

    hireDate = models.DateField(auto_now=False,
                                auto_now_add=False,
                                verbose_name='Date of Hire',
                                null=True)
    employeeNumber = models.CharField(max_length=10,
                                      verbose_name='Employee Number',
                                      null=True)


@receiver(post_save, sender=User)
def create_user_profile(sender, instance, created, **kwargs):
    if created:
        Profile.objects.create(user=instance)


@receiver(post_save, sender=User)
def save_user_profile(sender, instance, **kwargs):
    instance.profile.save()

这是 views.py 呈现表单 - 我将两种形式组合成一个表格，并用一个按钮/输入提交。这个问题似乎在于第二种形式（员工形式），第一种表单（customusercreationform）似乎效果很好：

from django.contrib.auth import login
from django.shortcuts import redirect, render
from django.urls import reverse
from users.forms import CustomUserCreationForm, EmployeeForm
from users.models import User, Profile
from django.contrib.auth.decorators import login_required
from django.shortcuts import redirect
from django.contrib import messages  #import messages


def dashboard(request):
    return render(request, "users/dashboard.html")


#@login_required
# @transaction.atomic


def register(request):
    if not request.user.is_authenticated:
        if request.method == 'POST':
            form = CustomUserCreationForm(
                request.POST)  #, instance=request.user)
            e_form = EmployeeForm(
                request.POST)  #, instance=request.user.profile)
            if form.is_valid() and e_form.is_valid():

                user = form.save()
                user.refresh_from_db(
                )  # load the profile instance created by the signal
                e_form = EmployeeForm(request.POST, instance=user.profile)
                e_form.full_clean()
                e_form.save()
                messages.success(request, f'Your account has been approved!')
                return redirect('login')

        else:

            form = CustomUserCreationForm()
            e_form = EmployeeForm()
            print(form.errors)
            print(e_form.errors)

        context = {'form': form, 'e_form': e_form}

        return render(request, 'users/register.html', context)

    else:
        return redirect('dashboard')

最后，这是 template 上上呈现注册页面的html的html -您可以看到，我尝试了几种不同的方法来获取表格来显示错误消息，但是它们都没有在日期字段上工作：

                            <form class="text-center" method="post">
                                {% csrf_token %}
                            
                            
                                <!--Username-->
                                <div class="mb-3"><input class="form-control" type="text" name="username" placeholder="Username" required id="{{ field.id_username }}"</div>
                                <div class="text-danger">
                                   {% for error in form.username.errors %}{{ error }}<br/>{% endfor %}
                                  </div>

                                <!--Email-->
                                <div class="mb-3"></div>
                                <div class="mb-3"><input class="form-control" type="email" name="email" placeholder="Email" required id="{{ field.id_email }}"</div>
                                <div class="text-danger">
                                   <!-- {% for error in form.register.errors %}{{ error }}<br/>{% endfor %} -->
                                </div>

                                <!--Password-->
                                <div class="mb-3"></div>
                                <div class="mb-3"><input class="form-control" type="password" name="password1" autocomplete="password" required id="{{ field.id_password1 }}" placeholder="Password"></div>
                                <div class="text-danger">
                                   {% for error in form.password1.errors %}{{ error }}<br/>{% endfor %}
                                  </div>
                                <!--Password Confirm-->
                                <div class="mb-3"></div>
                                <div class="mb-3"><input class="form-control" type="password" name="password2" autocomplete="password" required id="{{ field.id_password2 }}" placeholder="Confirm Password"></div>
                                <div class="text-danger">
                                  {% for error in form.password2.errors %}{{ error }}<br/>{% endfor %}
                                </div>
                                 <!--Date of Hire -->
                                <div class="mb-3"></div>
                                <div class="mb-3"><input class="form-control" type="text" name="hireDate" autocomplete="Date of Hire" required id="{{ field.id_hireDate }}" placeholder="Date of Hire"></div>
                                <div class="text-danger">
                                   {% for error in form.hireDate.errors %}{{ error }}<br/>{% endfor %}
                                </div>
                                
                                <!-- Employee Number -->
                                <div class="mb-3"></div>
                                <div class="mb-3"><input class="form-control" type="text" name="employeeNumber" autocomplete="Employee Number" required id="{{ field.id_employeeNumber }}" placeholder="Employee Number"></div>
                                <div class="text-danger">
                                   <!-- {% for error in form.register.errors %}{{ error }}<br/>{% endfor %}-->
                                </div>

                                {{ form.non_field_errors }}

                                {% if form.errors %}
                                    {% for field in form %}
                                        {% for error in field.errors %}
                                            <p> {{ error }} </p>
                                        {% endfor %}
                                    {% endfor %}
                                {% endif %} 


                                <input class="btn btn-primary d-block w-100" type="submit" value="Register">
                                
                                

                            <div class="mb-3"></div>
                            <a class="text-muted" href="{% url 'login' %}">Back to Login</a>
                                
                            </form>

我不确定我还能做些什么来获取表格来提供错误消息如果不正确输入日期，则将其发送给用户。

Answer 1

通常，最好使用type ='date'而不是type ='text'在输入中，但是如果您使用过的话，可以从文字也是如此。

首先，Hiredate字段来自e_form不是 form。

尝试以下代码：

html文件：

 <!--Date of Hire -->
        <div class="mb-3"></div>
        <div class="mb-3">
            {{e_form.hireDate}}
        <div class="text-danger">
           {% for error in e_form.hireDate.errors %}{{ error }}<br/>{% endfor %}
        </div>

forms.py：

class EmployeeForm(forms.ModelForm):

    hireDate = forms.DateField(
        required=False,
        widget=forms.DateInput(
            attrs={'class': 'form-control', 'placeholder': 'Enter Date'}),
        input_formats=(
            '%Y-%m-%d',  # '2006-10-25'
            '%m/%d/%Y',  # '10/25/2006'
            '%m/%d/%y'
        )
    )  # '10/25/06')

    class Meta:
        model = Profile
        fields = ['hireDate', 'employeeNumber']

现在，您将看到错误输入有效的日期 error_messages = {'必需/code> to 必需= false没有道理。

views.py可以保持不变。