Question

我正在尝试创建一个用户可以选择多个技术人员的表单。当我将行technician = forms.SelectMultiple(label='Technicians Involved')添加到 forms.py 时，我会收到一个没有数据的大空白框。如何使用用户模型中的技术人员填充该框？

models.py

class Incident(models.Model):
    user_id = models.ForeignKey(User, related_name='user')
    technician = models.ForeignKey(User, related_name='technician')
    capa = models.CharField('capa number', max_length=9)

forms.py

class IncidentForm(forms.ModelForm):

    ###################### TRYING! ################################
    technician = forms.SelectMultiple(label='Technicians Involved')
    ###############################################################

    class Meta:
        model = Incident
        fields = [  'user_id',
                    'technician',
                    'capa',
                ]

views.py

def report_incident(request):

    template = "report.html"

    if request.method == 'POST':

        form = IncidentForm(request.POST)

        if form.is_valid():

            # Auto capturing logged in user
            incident = form.save(False)
            incident.user_id = request.user
            incident.save()
            return HttpResponseRedirect('/incidents/')
    else:
        form = IncidentForm() #an unbound form

        return render(request, template, {'form': form})

************** 我更正后更正 ******************** *

models.py

class Incident(models.Model):
    user_id = models.ForeignKey(User, related_name='user')
    technician = models.ManyToManyField(User, related_name='technician')
    capa = models.CharField('capa number', max_length=9)

forms.py

class IncidentForm(forms.ModelForm):

    technician = forms.SelectMultiple()

    class Meta:
        model = Incident
        fields = [  'user_id',
                    'technician',
                    'capa',
                ]

views.py 没有变化

admin.py 在管理界面中为每个事件查看多个技术人员所做的更改。

class IncidentAdmin(admin.ModelAdmin):
        list_display = ('id',
                        'user_id',
                        'capa',
                        'get_technicians'
                        )

       def get_technicians(self):
            return "\n".join([t.technicians for t in obj.technician.all()])

Answer 1

试试这个

<android.support.design.widget.CoordinatorLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:id="@+id/rootLayout"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:fitsSystemWindows="true">

<android.support.v4.view.ViewPager
    android:id="@+id/viewpager"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    app:layout_behavior="@string/appbar_scrolling_view_behavior" />

<android.support.design.widget.AppBarLayout
    android:id="@+id/appbar"
    android:layout_width="match_parent"
    android:layout_height="256dp"
    android:fitsSystemWindows="true"
    android:theme="@style/ThemeOverlay.AppCompat.Dark.ActionBar">

    <android.support.design.widget.CollapsingToolbarLayout
        android:id="@+id/collapsing_toolbar"
        android:layout_width="match_parent"
        android:layout_height="206dip"
        android:background="@color/my_primary"
        android:fitsSystemWindows="true"
        app:contentScrim="?attr/colorPrimary"
        app:expandedTitleMarginBottom="20dp"
        app:expandedTitleMarginEnd="64dp"
        app:expandedTitleMarginStart="16dp"
        app:layout_scrollFlags="scroll|exitUntilCollapsed">

        <!--<ImageView-->
        <!--android:id="@+id/backdrop"-->
        <!--android:layout_width="match_parent"-->
        <!--android:layout_height="match_parent"-->
        <!--android:fitsSystemWindows="true"-->
        <!--android:scaleType="centerCrop"-->
        <!--app:layout_collapseMode="parallax" />-->

        <android.support.v7.widget.Toolbar
            android:id="@+id/toolbar"
            android:layout_width="match_parent"
            android:layout_height="?attr/actionBarSize"
            app:layout_collapseMode="pin"
            app:popupTheme="@style/ThemeOverlay.AppCompat.Light" />

    </android.support.design.widget.CollapsingToolbarLayout>

    <android.support.design.widget.TabLayout
        android:id="@+id/tabs"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:gravity="bottom"
        app:tabMode="scrollable" />

</android.support.design.widget.AppBarLayout>

<android.support.design.widget.FloatingActionButton
    android:id="@+id/fab"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:layout_margin="16dp"
    android:clickable="true"
    android:src="@drawable/ic_stop_white_24dp"
    app:layout_anchor="@id/appbar"
    app:layout_anchorGravity="bottom|right|end" />

Django Forms：MultipleSelect，包含来自其他模型的选择（外键）

1 个答案: