Initial labels support

spejstore/urls.py

@@ -15,6 +15,7 @@ from storage import apiviews
 
 router = routers.DefaultRouter()
 router.register(r'items', apiviews.ItemViewSet)
+router.register(r'labels', apiviews.LabelViewSet)
 
 # Wire up our API using automatic URL routing.
 # Additionally, we include login URLs for the browsable API.

storage/admin.py

@@ -1,6 +1,6 @@
 from django import forms
 from django.contrib import admin
-from .models import Item, ItemImage, Category
+from .models import Item, ItemImage, Category, Label
 from django_select2.forms import Select2Widget, Select2MultipleWidget
 
 
@@ -19,11 +19,14 @@ class ItemImageInline(admin.TabularInline):
     model = ItemImage
     extra = 1
 
+class LabelInline(admin.TabularInline):
+    model = Label
+
 class ItemAdmin(admin.ModelAdmin):
     list_display = ('_name',)
     list_filter = ('categories',)
     form = ItemForm
-    inlines = [ItemImageInline]
+    inlines = [ItemImageInline, LabelInline]
     save_on_top = True
 
     def _name(self, obj):

storage/apiviews.py

@@ -1,11 +1,18 @@
-from rest_framework import viewsets, generics
+from rest_framework import viewsets, generics, filters
 from rest_framework.response import Response
 from rest_framework.decorators import detail_route
 
-from storage.models import Item
+from storage.models import Item, Label
-from storage.serializers import ItemSerializer
+from storage.serializers import ItemSerializer, LabelSerializer
 from django.shortcuts import get_object_or_404
 
+class LabelViewSet(viewsets.ModelViewSet):
+    """
+    API endpoint that allows items to be viewed or edited.
+    """
+    queryset = Label.objects
+    serializer_class = LabelSerializer
+
 
 class ItemViewSet(viewsets.ModelViewSet):
     """

storage/migrations/0003_auto_20170424_2002.py

@@ -0,0 +1,43 @@
+# -*- coding: utf-8 -*-
+# Generated by Django 1.10.1 on 2017-04-24 20:02
+from __future__ import unicode_literals
+
+from django.db import migrations, models
+import django.db.models.deletion
+import django_hstore.fields
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('storage', '0002_auto_20170215_0115'),
+    ]
+
+    operations = [
+        migrations.CreateModel(
+            name='Label',
+            fields=[
+                ('id', models.CharField(max_length=64, primary_key=True, serialize=False)),
+                ('revision', models.IntegerField()),
+            ],
+        ),
+        migrations.AlterModelOptions(
+            name='item',
+            options={'ordering': ('path',)},
+        ),
+        migrations.AlterField(
+            model_name='item',
+            name='categories',
+            field=models.ManyToManyField(blank=True, to='storage.Category'),
+        ),
+        migrations.AlterField(
+            model_name='item',
+            name='props',
+            field=django_hstore.fields.DictionaryField(blank=True),
+        ),
+        migrations.AddField(
+            model_name='label',
+            name='item',
+            field=models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, related_name='labels', to='storage.Item'),
+        ),
+    ]

storage/models.py

@@ -60,3 +60,9 @@ class Item(models.Model, TreeModelMixin):
 class ItemImage(models.Model):
     item = models.ForeignKey(Item, related_name='images')
     image = models.ImageField()
+
+
+class Label(models.Model):
+    id = models.CharField(max_length=64, primary_key=True)
+    item = models.ForeignKey(Item, related_name='labels')
+    revision = models.IntegerField()

storage/serializers.py

@@ -1,4 +1,4 @@
-from storage.models import Item
+from storage.models import Item, Label
 from rest_framework import serializers
 from rest_framework_hstore.serializers import HStoreSerializer
 
@@ -7,3 +7,9 @@ class ItemSerializer(HStoreSerializer):
     class Meta:
         model = Item
         fields = ('uuid', 'name', 'description', 'props', 'state', 'parent')
+
+class LabelSerializer(serializers.ModelSerializer):
+    item = ItemSerializer()
+    class Meta:
+        model = Label
+        fields = ('id', 'item', 'revision')

storage/templates/item.html

@@ -41,6 +41,13 @@
                 {% endfor %}
             </div>
             {% endif %}
+
+            {% if labels %}
+            <h3>Labels</h3>
+            {% for label in labels %}
+                <span class="label label-default">{{ label.id }} <small>({{ label.revision }})</small></span>
+            {% endfor %}
+            {% endif %}
         </div>
 
         <div class="col-md-8">

storage/urls.py

@@ -1,8 +1,9 @@
 from django.conf.urls import include, url
-from storage.views import index, search, item_display
+from storage.views import index, search, item_display, label_lookup
 
 urlpatterns = [
     url(r'^$', index),
     url(r'^search$', search),
     url(r'^item/(?P<pk>.*)$', item_display, name='item-display'),
+    url(r'^(?P<pk>[^/]*)$', label_lookup, name='label-lookup'),
 ]

storage/views.py

@@ -1,5 +1,5 @@
-from django.shortcuts import render, get_object_or_404
+from django.shortcuts import render, get_object_or_404, redirect
-from storage.models import Item
+from storage.models import Item, Label
 from django.contrib.postgres.search import SearchVector
 import shlex
 
@@ -61,6 +61,11 @@ def item_display(request, pk):
     return render(request, 'item.html', {
         'item': item,
         'images': item.images.all(),
+        'labels': item.labels.all(),
         'ancestors': item.get_ancestors(),
         'children': item.get_children(),
         })
+
+def label_lookup(request, pk):
+    label = get_object_or_404(Label, pk=pk)
+    return redirect(label.item)