如何使用Django在Databse中使用复选框值存储多对多字段

问题描述

使用此代码我想将多个课程存储到学生表中，但是此代码不起作用，也不会引发任何错误也不会保存任何数据.主要问题是单击提交按钮时，提交按钮不执行任何操作根本没有加载提交按钮.我该如何解决?我认为问题出在add_student.html模板中.当我返回form.error时，它抛出了航向.我是否需要更改任何内容?但是我想保持这种设计

With this code i want to store multiple courses to the student table.But this code is not working.Neither it throws any error neither saves any data.The main problem is while clicking submit button the submit button does not perform any action at all.It does not load the submit button.How can i solve this??I think the problem is in add_student.html template.When i return form.error it throws course.Is there anything i have to change??but i want to keep my design like this

class Course(models.Model):
    title = models.CharField(max_length=250)
    basic_price = models.CharField(max_length=100)
    advanced_price = models.CharField(max_length=100)
    basic_duration = models.CharField(max_length=50)
    advanced_duration = models.CharField(max_length=50)

    def __str__(self):
        return self.title


class Student(models.Model):
    name = models.CharField(max_length=100)
    course = models.ManyToManyField(Course)
    address = models.CharField(max_length=200)
    email = models.EmailField()
    phone = models.CharField(max_length=15)
    image = models.ImageField(upload_to='Students',blank=True)
    joined_date = models.DateField()

    def __str__(self):
        return self.name

def addstudent(request):
    courses = Course.objects.all()
    if request.method == 'POST':
        form = AddStudentForm(request.POST,request.FILES)
        if form.is_valid():
            student = form.save()
            student.save()
            # student.course.set(courses)
            messages.success(request, 'student saved.')
            return redirect('students:add_student')
        else:
            return HttpResponse(form.errors) # it returns course.i think the problem is while saving the course

    else:
        form = AddStudentForm()
    return render(request,'students/add_student.html',{'form':form,'courses':courses})

class AddStudentForm(forms.ModelForm):
    course = forms.ModelMultipleChoiceField( queryset=Course.objects.all(), widget=forms.CheckboxSelectMultiple)

    class Meta:
        model = Student
        fields = ['name','course','email','address','phone','image','joined_date']

 <form action="{% url 'students:add_student' %}"
 method="post" enctype="multipart/form-data">
                        {% csrf_token %}
                        <div class="form-group">
                            <h5>Full Name <span class="text-danger">*</span></h5>
                            <div class="controls">
                                <input type="text" name="name" class="form-control" required data-validation-required-message="This field is required"> </div>
                        </div>
                     <div class="form-group">
                       <h5>Courses <span class="text-danger">*</span></h5>
                       <div class="controls">
                         {% for course in courses %}
                         <input name ="course" type="checkbox" id="{{course.title}}" required value="{{course.id}}">
                         <label for="{{course.title}}">{{course.title}}</label>
                         {% endfor %}
                       </div>
                     </div>
                        <div class="form-group">
                            <h5>Address<span class="text-danger">*</span></h5>
                            <div class="controls">
                                <input type="text" name="address" class="form-control" required data-validation-required-message="This field is required"> </div>
                        </div>
                        <div class="form-group">
                            <h5>Phone Number <span class="text-danger">*</span></h5>
                            <div class="controls">
                                <input type="text" name="phone" data-validation-required-message="This field is required" class="form-control" required> </div>
                        </div>
                        <div class="form-group">
                            <h5>Email <span class="text-danger">*</span></h5>
                            <div class="controls">
                                <input type="email" name="email"  data-validation-required-message="This field is required" class="form-control" required> </div>
                        </div>
                          <div class="form-group">
                            <h5>Joined Date <span class="text-danger">*</span></h5>
                            <div class="controls">
                                <input type="date" name="joined_date" data-validation-required-message="This field is required" class="form-control" required> </div>
                        </div>
                        <div class="form-group">
                            <h5>Image <span class="text-danger">*</span></h5>
                            <div class="controls">
                                <input type="file" name="image" class="form-control" > </div>
                        </div>
                        <div class="text-xs-right">
                            <button type="submit" class="btn btn-info">Submit</button>
                        </div>
                    </form>

推荐答案

尝试基于类的视图

class CreateStudent(CreateView):
    model = Student
    form_class = AddStudentForm
    template_name = "add_student.html"

这篇关于如何使用Django在Databse中使用复选框值存储多对多字段的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持！