Question

我有模特学院，可以有照片和医生。所以我使用inlineformset_factory来实现＆＃34;创建机构＆＃34;功能。
因此，如果我添加两张或更多照片或医生 - 表单只保存最后一张。为什么会发生这种情况以及如何解决这个问题？

models.py

class Institution(models.Model):
    name = models.CharField(max_length=255)

    class Meta:
        verbose_name = u"Institution"
        verbose_name_plural = u"Institutions"

    def __unicode__(self):
        return self.name

class Photo(models.Model):
    photo = ResizedImageField(size=[600, 600], crop=['middle', 'center'], quality=90, upload_to='institution_photos')
    rel_institution = models.ForeignKey(Institution)

    class Meta:
        verbose_name = u"Photo"
        verbose_name_plural = u"Photos"

class Doctor(models.Model):
    name = models.CharField(max_length=255)
    rel_institution = models.ForeignKey(Institution)

    class Meta:
        verbose_name = u"Doctor"
        verbose_name_plural = u"Doctors"

    def __unicode__(self):
        return self.name

forms.py

class InstitutionForm(forms.ModelForm):

    class Meta:
        model = Institution
        fields = '__all__'
        error_css_class = 'error'
        required_css_class = 'required'

    def __init__(self, *args, **kwargs):
        super(InstitutionForm, self).__init__(*args, **kwargs)
        self.helper = FormHelper()
        self.helper.form_tag = False


class PhotoForm(forms.ModelForm):

    class Meta:
        model = Photo
        fields = '__all__'
        error_css_class = 'error'
        required_css_class = 'required'

    def __init__(self, *args, **kwargs):
        super(PhotoForm, self).__init__(*args, **kwargs)
        self.helper = FormHelper()
        self.helper.form_tag = True

class DoctorForm(forms.ModelForm):

    class Meta:
        model = Doctor
        fields = '__all__'
        error_css_class = 'error'
        required_css_class = 'required'

    def __init__(self, *args, **kwargs):
        super(DoctorForm, self).__init__(*args, **kwargs)
        self.helper = FormHelper()
        self.helper.form_tag = True

InstitutionPhotosFromSet = inlineformset_factory(Institution, Photo, PhotoForm, extra=1)
InstitutionDoctorsFromSet = inlineformset_factory(Institution, Doctor, DoctorForm, extra=1)

views.py

def institution_create(request):
    if request.POST:
        form = InstitutionForm(request.POST, request.FILES)
        if form.is_valid():
            print 'a form is valid!'
            institution = form.save(commit=False)
            photo_form = InstitutionPhotosFromSet(request.POST, request.FILES, prefix='photos', instance=institution)
            doctor_form = InstitutionDoctorsFromSet(request.POST, request.FILES, prefix='doctors', instance=institution)
            print photo_form
            if photo_form.is_valid():
                print 'a photo_form is valid!'
                photo_form.save()
            if doctor_form.is_valid():
                print 'a doctor_form is valid!'
                doctor_form.save()
            institution.save()
            return redirect('base:institutions_list')
    else:
        form = InstitutionForm()
        photo_form = InstitutionPhotosFromSet(prefix='photos')
        doctor_form = InstitutionDoctorsFromSet(prefix='doctors')

    args = {}
    args.update(csrf(request))

    args['form'] = form
    args['photo_form'] = photo_form
    args['doctor_form'] = doctor_form
    full_name = request.user.username

    return render(request, 'base/create_institution.html', locals())

模板

<form class="the_form" enctype="multipart/form-data" action="." method="post">
                    {% csrf_token %}
                    {{ form|crispy }}
                    {% wysiwyg_editor "id_services" %}
                    {% wysiwyg_editor "id_license_text" %}
                    {% wysiwyg_editor "id_schedule" %}
                    <fieldset>
                        <legend>Photos</legend>
                        {{ photo_form.management_form|crispy }}
                        {{ photo_form.non_form_errors|crispy }}
                        {% for form in photo_form %}
                            {{ form.id }}
                            <div class="inline {{ doctor_form.prefix }}">
                                {{ form|crispy }}
                            </div>
                        {% endfor %}
                    </fieldset>
                    <fieldset>
                        <legend>Doctors</legend>
                        {{ doctor_form.management_form|crispy }}
                        {{ doctor_form.non_form_errors|crispy }}
                        {% for form in doctor_form %}
                            {{ form.id }}
                            <div class="inline {{ photo_form.prefix }}">
                                {{ form|crispy }}
                            </div>
                        {% endfor %}
                    </fieldset>
                    <div class="text-center">
                        <input class="btn btn-default" type="submit" name="submit" value="Save"/>
                        <a class="btn btn-danger" href="/home/">Cancel</a>
                    </div>
                </form>

可能会有所帮助。当我打印photo_form时，它会打印我：

<input id="id_photos-TOTAL_FORMS" name="photos-TOTAL_FORMS" type="hidden" value="1" /><input id="id_photos-INITIAL_FORMS" name="photos-INITIAL_FORMS" type="hidden" value="0" /><input id="id_photos-MIN_NUM_FORMS" name="photos-MIN_NUM_FORMS" type="hidden" value="0" /><input id="id_photos-MAX_NUM_FORMS" name="photos-MAX_NUM_FORMS" type="hidden" value="1000" /> <tr><th><label for="id_photos-0-photo">Photo:</label></th><td><input id="id_photos-0-photo" name="photos-0-photo" type="file" /></td></tr> <tr><th><label for="id_photos-0-DELETE">Delete:</label></th><td><input id="id_photos-0-DELETE" name="photos-0-DELETE" type="checkbox" /><input id="id_photos-0-rel_institution" name="photos-0-rel_institution" type="hidden" /><input id="id_photos-0-id" name="photos-0-id" type="hidden" /></td></tr>

Answer 1

这个问题的答案非常“神奇”，取决于我的another question。

要让内联formset保存多个记录，html应更改为以下内容：

<fieldset>
    <legend>Photos</legend>
    {{ photo_form.management_form|crispy }}
    {{ photo_form.non_form_errors|crispy }}
    {% for form in photo_form %}
        {{ form.id }}
        <div class="inline {{ photo_form.prefix }}">
            {{ form|crispy }}
        </div>
    {% endfor %}
</fieldset>
<fieldset>
    <legend>Doctors</legend>
    {{ doctor_form.management_form|crispy }}
    {{ doctor_form.non_form_errors|crispy }}
    {% for form in doctor_form %}
        {{ form.id }}
        <div class="inline {{ doctor_form.prefix }}">
            {{ form|crispy }}
        </div>
    {% endfor %}
</fieldset>

Inlineformset仅保存最后一种格式

1 个答案: