Add MultiWidget error example

testapp/forms/multivalue.py

@@ -0,0 +1,25 @@
+from django import forms
+
+
+class PhoneWidget(forms.MultiWidget):
+
+    def decompress(self, value):
+        if value is None:
+            return ['' * 3]
+        return value.split('-')
+
+
+class PhoneField(forms.MultiValueField):
+
+    widget = PhoneWidget(widgets=[forms.TextInput, forms.TextInput, forms.TextInput])
+
+    def __init__(self, **kwargs):
+        super().__init__(fields=(forms.CharField(), forms.CharField(), forms.CharField()), **kwargs)
+
+    def compress(self, data_list):
+        return '-'.join(data_list)
+
+
+class MultiValueForm(forms.Form):
+    name = forms.CharField()
+    phone_number = PhoneField(label="Phone Number")

testapp/views.py

@@ -40,6 +40,7 @@
 from testapp.forms.county import CountyForm
 from testapp.forms.customer import CustomerCollection
 from testapp.forms.moon import MoonForm, MoonCalendarRenderer
+from testapp.forms.multivalue import MultiValueForm
 from testapp.forms.opinion import OpinionForm
 from testapp.forms.person import ButtonActionsForm, SimplePersonForm, sample_person_data, ModelPersonForm
 from testapp.forms.poll import ModelPollForm, PollCollection
@@ -562,6 +563,9 @@ class CompleteForm(FormMixin, forms.Form):
         template_name='testapp/button-actions.html',
         extra_context={'click_actions': 'clearErrors -> disable -> spinner -> submit -> okay(1500) -> proceed !~ enable -> bummer(9999)'},
     ), kwargs={'group': 'button', 'index': 20}, name='button-actions'),
+    path('multi-value', DemoFormView.as_view(
+        form_class=MultiValueForm
+    ), kwargs={'index': 1}, name='multi-value')
 ]
 
 # this creates permutations of forms to show how to withhold which feedback