Add FormPage page type

Add FormPage page type using [Wagtail Form Builder].

[Wagtail Form Builder]: https://docs.wagtail.io/en/v2.0/reference/contrib/forms/index.html

mpicms/base/models.py

@@ -7,10 +7,15 @@
 from wagtail.admin.edit_handlers import FieldPanel
 from wagtail.snippets.edit_handlers import SnippetChooserPanel
 from wagtail.snippets.models import register_snippet
-from wagtail.admin.edit_handlers import StreamFieldPanel
+from wagtail.admin.edit_handlers import (
+  StreamFieldPanel, InlinePanel, MultiFieldPanel, FieldRowPanel,
+)
 from wagtail.images.edit_handlers import ImageChooserPanel
 from wagtail.core.fields import StreamField
 from wagtail.search import index
+from wagtail.contrib.forms.models import AbstractEmailForm, AbstractFormField
+from wagtail.contrib.forms.edit_handlers import FormSubmissionsPanel
+from modelcluster.fields import ParentalKey
 
 from mpicms.news.mixins import NewsMixin
 from mpicms.events.mixins import EventMixin
@@ -137,3 +142,28 @@ def serve(self, request, *args, **kwargs):
 
     def serve_preview(self, request, mode_name):
         return ContactListView.as_view()(request)
+
+class FormField(AbstractFormField):
+    page = ParentalKey('FormPage', on_delete=models.CASCADE, related_name='form_fields')
+
+class FormPage(AbstractEmailForm, SideBarMixin, BasePage):
+    intro = RichTextField(blank=True)
+    thank_you_text = RichTextField(blank=True)
+
+    content_panels = (
+        AbstractEmailForm.content_panels +
+        [
+            FormSubmissionsPanel(),
+            FieldPanel('intro', classname="full"),
+            InlinePanel('form_fields', label="Form fields"),
+            FieldPanel('thank_you_text', classname="full"),
+            MultiFieldPanel([
+                FieldRowPanel([
+                    FieldPanel('from_address', classname="col6"),
+                    FieldPanel('to_address', classname="col6"),
+                ]),
+                FieldPanel('subject'),
+            ], "Email"),
+        ] +
+        SideBarMixin.content_panels
+    )

mpicms/templates/base/form_page.html

@@ -0,0 +1,22 @@
+{% extends 'base/page.html' %}
+
+{% load wagtailcore_tags static %}
+
+{% block head %}
+    {{ block.super }}
+{% endblock %}
+
+{% block page_content %}
+    <h2 class="title is-2">{{ page.title }}</h2>
+
+    <div id="content" class="content">
+        {{ page.intro|richtext }}
+        <form action="{% pageurl page %}" method="POST">
+            {% csrf_token %}
+            <table>
+                {{ form.as_table }}
+            </table>
+            <input type="submit">
+        </form>
+    </div>
+{% endblock %}

mpicms/templates/base/form_page_landing.html

@@ -0,0 +1,15 @@
+{% extends 'base/page.html' %}
+
+{% load wagtailcore_tags static %}
+
+{% block head %}
+    {{ block.super }}
+{% endblock %}
+
+{% block page_content %}
+    <h2 class="title is-2">{{ page.title }}</h2>
+
+    <div id="content" class="content">
+        {{ page.thank_you_text|richtext }}
+    </div>
+{% endblock %}