changing namespace and urls

project_directory/three_d_viewer/admin.py

@@ -0,0 +1,5 @@
+from django.contrib import admin
+from three_d_viewer.models import Category, Sample
+
+admin.site.register(Category)
+admin.site.register(Sample)

project_directory/three_d_viewer/migrations/0001_initial.py

@@ -0,0 +1,57 @@
+# -*- coding: utf-8 -*-
+import datetime
+from south.db import db
+from south.v2 import SchemaMigration
+from django.db import models
+
+
+class Migration(SchemaMigration):
+
+    def forwards(self, orm):
+        # Adding model 'Category'
+        db.create_table(u'three_d_viewer_category', (
+            (u'id', self.gf('django.db.models.fields.AutoField')(primary_key=True)),
+            ('name', self.gf('django.db.models.fields.CharField')(max_length=100)),
+            ('active', self.gf('django.db.models.fields.BooleanField')(default=True)),
+            ('parent', self.gf('django.db.models.fields.related.ForeignKey')(blank=True, related_name='children', null=True, on_delete=models.SET_NULL, to=orm['three_d_viewer.Category'])),
+        ))
+        db.send_create_signal(u'three_d_viewer', ['Category'])
+
+        # Adding model 'Sample'
+        db.create_table(u'three_d_viewer_sample', (
+            (u'id', self.gf('django.db.models.fields.AutoField')(primary_key=True)),
+            ('name', self.gf('django.db.models.fields.CharField')(max_length=100)),
+            ('active', self.gf('django.db.models.fields.BooleanField')(default=True)),
+            ('model_filename', self.gf('django.db.models.fields.CharField')(max_length=1000)),
+            ('parent', self.gf('django.db.models.fields.related.ForeignKey')(to=orm['three_d_viewer.Category'], null=True, on_delete=models.SET_NULL, blank=True)),
+        ))
+        db.send_create_signal(u'three_d_viewer', ['Sample'])
+
+
+    def backwards(self, orm):
+        # Deleting model 'Category'
+        db.delete_table(u'three_d_viewer_category')
+
+        # Deleting model 'Sample'
+        db.delete_table(u'three_d_viewer_sample')
+
+
+    models = {
+        u'three_d_viewer.category': {
+            'Meta': {'object_name': 'Category'},
+            'active': ('django.db.models.fields.BooleanField', [], {'default': 'True'}),
+            u'id': ('django.db.models.fields.AutoField', [], {'primary_key': 'True'}),
+            'name': ('django.db.models.fields.CharField', [], {'max_length': '100'}),
+            'parent': ('django.db.models.fields.related.ForeignKey', [], {'blank': 'True', 'related_name': "'children'", 'null': 'True', 'on_delete': 'models.SET_NULL', 'to': u"orm['three_d_viewer.Category']"})
+        },
+        u'three_d_viewer.sample': {
+            'Meta': {'object_name': 'Sample'},
+            'active': ('django.db.models.fields.BooleanField', [], {'default': 'True'}),
+            u'id': ('django.db.models.fields.AutoField', [], {'primary_key': 'True'}),
+            'model_filename': ('django.db.models.fields.CharField', [], {'max_length': '1000'}),
+            'name': ('django.db.models.fields.CharField', [], {'max_length': '100'}),
+            'parent': ('django.db.models.fields.related.ForeignKey', [], {'to': u"orm['three_d_viewer.Category']", 'null': 'True', 'on_delete': 'models.SET_NULL', 'blank': 'True'})
+        }
+    }
+
+    complete_apps = ['three_d_viewer']

project_directory/three_d_viewer/models.py

@@ -0,0 +1,24 @@
+from django.db import models
+
+
+class CommonInfo(models.Model):
+    name = models.CharField(max_length=100)
+    active = models.BooleanField(default=True)
+
+    def __unicode__(self):
+        return self.name
+
+    class Meta:
+        abstract = True
+
+
+class Category(CommonInfo):
+    parent = models.ForeignKey('self', blank=True, null=True,
+                               on_delete=models.SET_NULL,
+                               related_name='children')
+
+
+class Sample(CommonInfo):
+    model_filename = models.CharField(max_length=1000)
+    parent = models.ForeignKey(Category, blank=True, null=True,
+                               on_delete=models.SET_NULL)

project_directory/three_d_viewer/templates/children.html

@@ -0,0 +1,7 @@
+<ul>
+    {% for child in children %}
+    <li> <a href="{{ child.get_absolute_url }}">{{ child }}</a></li>
+        {% child.children.count > 0 %}
+        {% children_list child %}
+    {% endfor %}
+</ul>

project_directory/three_d_viewer/templates/main.html

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+{% children_tag parent %}

project_directory/three_d_viewer/templates/three_d_viewer/detail.html

@@ -0,0 +1 @@
+<h1>{{ sample.name }}</h1>

project_directory/three_d_viewer/templates/three_d_viewer/index.html

@@ -0,0 +1,9 @@
+{% if active_samples %}
+    <ul>
+    {% for sample in active_samples %}
+        <li><a href="{% url 'three_d_viewer:detail' sample.id %}">{{ sample.name }}</a></li>
+    {% endfor %}
+    </ul>
+{% else %}
+    <p>No samples are available.</p>
+{% endif %}

project_directory/three_d_viewer/tests.py

@@ -0,0 +1,16 @@
+"""
+This file demonstrates writing tests using the unittest module. These will pass
+when you run "manage.py test".
+
+Replace this with more appropriate tests for your application.
+"""
+
+from django.test import TestCase
+
+
+class SimpleTest(TestCase):
+    def test_basic_addition(self):
+        """
+        Tests that 1 + 1 always equals 2.
+        """
+        self.assertEqual(1 + 1, 2)

project_directory/three_d_viewer/urls.py

@@ -0,0 +1,9 @@
+from django.conf.urls import patterns, url
+from three_d_viewer import views
+
+urlpatterns = patterns('',
+    url(r'^$', views.IndexView.as_view(), name='index'),
+    url(r'^(?P<pk>\d+)/$', views.DetailView.as_view(), name='detail'),
+)
+
+

project_directory/three_d_viewer/views.py

@@ -0,0 +1,31 @@
+from django import template
+from django.shortcuts import get_object_or_404, render
+from django.http import HttpResponseRedirect, HttpResponse
+from django.core.urlresolvers import reverse
+from django.views import generic
+
+from three_d_viewer.models import Sample
+register = template.Library()
+
+
+@register.inclusion_tag('children.html')
+def children_tag(category):
+    children = category.children.all()
+    return {'children': children}
+
+
+class IndexView(generic.ListView):
+    template_name = 'three_d_viewer/index.html'
+    context_object_name = 'active_samples'
+
+    def get_queryset(self):
+        """
+        Return the last five published polls (not including those set to be
+        published in the future).
+        """
+        return Sample.objects.filter(active=True)
+
+
+class DetailView(generic.DetailView):
+    model = Sample
+    template_name = 'three_d_viewer/detail.html'