Add description to chapter

client/src/components/Chapter.vue

@@ -2,6 +2,10 @@
   <div class="chapter">
     <h3>{{chapter.title}}</h3>
 
+    <p>
+      {{chapter.description}}
+    </p>
+
     <add-content-block-button :parent="chapter.id"></add-content-block-button>
 
     <content-block :contentBlock="contentBlock"

client/src/graphql/gql/moduleDetailsQuery.gql

@@ -28,6 +28,7 @@ query ModulesQuery($slug: String!) {
         node {
           id
           title
+          description
           contentBlocks {
             edges {
               node {

server/book/migrations/0007_chapter_description.py

@@ -0,0 +1,18 @@
+# Generated by Django 2.0.6 on 2018-10-03 16:44
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('book', '0006_auto_20181002_1359'),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name='chapter',
+            name='description',
+            field=models.TextField(blank=True),
+        ),
+    ]

server/book/models/chapter.py

@@ -1,5 +1,6 @@
 import logging
 
+from django.db import models
 from wagtail.admin.edit_handlers import FieldPanel, TabbedInterface, ObjectList
 
 from core.wagtail_utils import StrictHierarchyPage
@@ -12,8 +13,11 @@ class Chapter(StrictHierarchyPage):
         verbose_name = 'Kapitel'
         verbose_name_plural = 'Kapitel'
 
+    description = models.TextField(blank=True)
+
     content_panels = [
         FieldPanel('title', classname="full title"),
+        FieldPanel('description', classname="full description"),
     ]
 
     settings_panels = [

server/book/schema/queries.py

@@ -24,7 +24,7 @@ class ChapterNode(DjangoObjectType):
     class Meta:
         model = Chapter
         only_fields = [
-            'slug', 'title',
+            'slug', 'title', 'description',
         ]
         filter_fields = [
             'slug', 'title',