如何制作必需:模型Django

时间:2018-04-03 04:24:54

标签: python django model modelform

我的模型中包含is_studentis_teacher StudentTeacher形式的字段

is_teacher = models.BooleanField('teacher status', default=False)
is_student = models.BooleanField('student status', default=False)

我想确保此字段为:

  • 始终由用户True *必选
  • 进行检查

目前:is_teacher模型中的TeacherApplications

  • 取消选中时,它会将0保存到表单并继续。 (不好)

  • 选中时出现此错误:

  

ValueError at / register / teacher int()with base的无效文字   10:''

目前:is_student模型中的StudentProfile

  • 选中时出现此错误
  位于/ register / [“'on'值的

ValidationError 必须为True或   假的。“]

  • 取消选中时,它会将0保存到表单并继续。 (再次,不好)

更新代码

以上错误消失了:每次我检查后尝试提交表单时出现新错误is_teacher / is_student

  

/ register / NOT NULL约束中的IntegrityError失败:   accounts_studentprofile.is_student

模型

class StudentProfile(models.Model):
    user = models.OneToOneField('Accounts', related_name='student_profile')
    # additional fields for students
    AMEB_Ratings = models.PositiveIntegerField(default=0)
    is_student = models.BooleanField('student status', default=False)



class TeacherApplications(models.Model):
    user = models.OneToOneField('Accounts', related_name='teacher_profile')
    # additional fields for teachers
    instrument = models.TextField(max_length=500, blank=True)
    skill = models.CharField(max_length=30, blank=True)
    experience_in_years = models.PositiveIntegerField(blank=True)
    is_teacher = models.BooleanField('teacher status', default=False)

查看

def registerStudent(request):
    # Once register page loads, either it will send to the server POST data (if the form is submitted), else if it don't send post data create a user form to register
    if request.method == "POST":
        user_form = UserForm(request.POST)
        form = StudentResistrationForm(request.POST)

        if form.is_valid() and user_form.is_valid():
            User = get_user_model()
            username = user_form.cleaned_data['username']
            email = user_form.cleaned_data['email']
            password = user_form.cleaned_data['password']
            new_user = User.objects.create_user(username=username, email=email, password=password)

            student = form.save(commit=False)
            student.user = new_user
            student.save()

            # Student_profile = StudentProfile()
            # Student_profile.user = new_user
            # Student_profile.AMEB_Ratings = request.POST['AMEB_Ratings']
            # Student_profile.is_student = request.POST.get('is_student', False)

            new_user.save()
            # Student_profile.save()
            # form.save()

            return redirect('/')
    else:
        #  Create the django default user form and send it as a dictionary in args to the reg_form.html page.
        user_form = UserForm()
        form = StudentResistrationForm()        

        # args = {'form_student': form, 'user_form': user_form }
    return render(request, 'accounts/reg_form_students.html', {'form_student': form, 'user_form': user_form })

def teacherApplication(request):
    # Once register page loads, either it will send to the server POST data (if the form is submitted), else if it don't send post data create a user form to register
    if request.method == "POST":
        user_form = UserForm(request.POST)
        form = TeacherRegistrationForm(request.POST)

        if form.is_valid() and user_form.is_valid():
            User = get_user_model()
            username = user_form.cleaned_data['username']
            email = user_form.cleaned_data['email']
            password = user_form.cleaned_data['password']
            new_user = User.objects.create_user(username=username, email=email, password=password)

            teacher = form.save(commit=False)
            teacher.user = new_user
            teacher.save()

            # Teacher_profile = TeacherApplications()
            # Teacher_profile.user = new_user
            # Teacher_profile.instrument = request.POST['instrument']
            # Teacher_profile.skill = request.POST['skill']
            # Teacher_profile.experience_in_years = request.POST['experience_in_years']
            # Teacher_profile.is_teacher = request.POST.get('is_teacher', False)

            new_user.save()
            # Teacher_profile.save()
            # form.save()

            return redirect('/')
    else:
        #  Create the django default user form and send it as a dictionary in args to the reg_form.html page.
        user_form = UserForm()
        form = TeacherRegistrationForm()  
    return render(request, 'accounts/reg_form_teachers.html', {'form_student': form, 'user_form': user_form })

形式

class StudentResistrationForm(forms.ModelForm):
    class Meta:
        model = StudentProfile
        fields = (  
            'AMEB_Ratings',
            'is_student',

        )

    def save(self, commit=True):
        user = super(StudentResistrationForm, self).save(commit=False)
        # user.first_name = self.cleaned_data['first_name']
        # user.last_name = self.cleaned_data['last_name']
        user.AMEB_Ratings = self.cleaned_data['AMEB_Ratings']

        if commit:
            user.save()

        return user


class TeacherRegistrationForm(forms.ModelForm):
    class Meta:
        model = TeacherApplications
        fields = (
            'instrument',
            'skill',
            'experience_in_years',
            'is_teacher',
        )

class UserForm(forms.ModelForm):
    class Meta:
        model = get_user_model()
        fields = ('username', 'email', 'password')

1 个答案:

答案 0 :(得分:1)

您可以将此字段添加到StudentResistrationFormTeacherRegistrationForm,并在clean_fieldname方法中为其添加自定义验证,以使其成为必需:

StudentResistrationForm(ModelForm):
    class Meta:
        model = StudentRegistration
        fields = (
            'instrument',
            'skill',
            'experience_in_years',
            'is_student',
        )

    def clean_is_student(self):
        is_student = self.cleaned_data.get('is_student')
        if not is_student:
            raise forms.ValidationError('This field is required')
        return is_student  

同样在视图中,您可以使用表单创建request.POSTstudent对象,而不是从teacher获取原始数据:

new_user = User.objects.create_user(username=username, email=email, password=password)
teacher = form.save(commit=False)
teacher.user = new_user
teacher.save()