Add a CBGV for serving templates

djplatter/models.py

@@ -1,5 +1,5 @@
-class TemplateDirectory(object):
-    def __init__(self, template_dir, config_file_name='config.json',
+class ContentCollection(object):
+    def __init__(self, template_dir, config_file_name='overrides.json',
                  file_types=('.html',), ignore_prefixes=('_',)):
         self.template_dir = template_dir
         self.config_file_name = config_file_name

djplatter/views.py

@@ -0,0 +1,27 @@
+from django.shortcuts import render
+from django.views.generic import View
+
+from django.http import Http404
+from djplatter.models import ContentCollection
+
+
+class ServeTemplates(View):
+    template_dir = None
+
+    def __init__(self, *args, **kwargs):
+        assert self.template_dir, (
+            'Configuration error. Class variable template_dir must be set.')
+        return super(View, self).__init__(*args, **kwargs)
+
+    def get_content_collection(self):
+        return ContentCollection(self.template_dir)
+
+    def dispatch(self, request, *args, **kwargs):
+        content = self.get_content_collection()
+
+        try:
+            template_path = content.select(request, self.kwargs['path'])
+        except:
+            raise Http404("No template found for that path.")
+
+        return render(request, template_path)

tests/__init__.py

@@ -0,0 +1,7 @@
+import os
+
+from django.conf import settings
+
+# Configure django so that our tests work correctly
+os.environ['DJANGO_SETTINGS_MODULE'] = 'tests.test_settings'
+settings._setup()

tests/test_settings.py

@@ -0,0 +1,22 @@
+DEBUG = True
+TEMPLATE_DEBUG = DEBUG
+
+SECRET_KEY = 'fake_secret'
+
+ROOT_URLCONF = 'tests.test_urls'
+
+DATABASES = {
+    'default': {
+        'ENGINE': 'django.db.backends.sqlite3',
+        'NAME': 'irrelevant.db'
+    }
+}
+
+INSTALLED_APPS = (
+)
+
+MEDIA_ROOT = '/media/'
+STATIC_ROOT = '/static/'
+STATIC_URL = '/'
+
+APPEND_SLASH = False

tests/view_tests.py

@@ -0,0 +1,52 @@
+from django.test.client import RequestFactory
+from mock import patch
+from unittest2 import TestCase
+
+from djplatter.views import ServeTemplates
+
+
+class ServeTemplatesInstantiation(TestCase):
+    def setUp(self):
+        self.bad_st_cbgv = type('TemplateServer', (ServeTemplates,), {})
+        self.good_st_cbgv = type('TemplateServer', (ServeTemplates,), {
+            'template_dir': '/my/template/dir/'
+        })
+
+    def test_fails_if_no_template_dir_is_set_on_cbgv(self):
+        """fails if no template_dir is set on cbgv"""
+        self.assertRaises(AssertionError, self.bad_st_cbgv)
+
+    def test_succeeds_if_template_dir_is_set(self):
+        """"succeeds if template_dir is set on cbgv"""
+        self.assertIsInstance(self.good_st_cbgv(), ServeTemplates)
+
+
+class ServeTemplatesAsView(TestCase):
+    def setUp(self):
+        content_collection_patcher = patch('djplatter.views.ContentCollection')
+        self.content_collection_mock = content_collection_patcher.start()
+        self.content_collection = self.content_collection_mock.return_value
+        self.content_collection.select.return_value = '/a/template.html'
+        self.addCleanup(content_collection_patcher.stop)
+
+        render_patcher = patch('djplatter.views.render')
+        self.render_mock = render_patcher.start()
+        self.addCleanup(render_patcher.stop)
+
+        self.my_st_cbgv = type('TemplateServer', (ServeTemplates,), {
+            'template_dir': '/template/dir/'
+        })
+        self.view = self.my_st_cbgv.as_view()
+        self.request = RequestFactory().get('/some/path/')
+        self.response = self.view(self.request, path='/path/')
+
+    def test_instantiates_a_content_collection(self):
+        self.content_collection_mock.assert_called_once_with('/template/dir/')
+
+    def test_selects_a_template_from_a_content_collection(self):
+        self.content_collection.select.assert_called_once_with(
+            self.request, '/path/')
+
+    def test_renders_the_selected_template(self):
+        self.render_mock.assert_called_once_with(
+            self.request, '/a/template.html')