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authorTom Christie2011-05-23 17:07:31 +0100
committerTom Christie2011-05-23 17:07:31 +0100
commitc53175914752502629141556f3e001e9d2e9f7fa (patch)
treed68bc4f0b2baeed2a90d6d20295423583603ba2b
parente7f8c06dbbbc9e4ae91327ee02cd8147777b17e2 (diff)
downloaddjango-rest-framework-c53175914752502629141556f3e001e9d2e9f7fa.tar.bz2
name and description
-rw-r--r--.hgignore1
-rw-r--r--djangorestframework/mixins.py5
-rw-r--r--djangorestframework/tests/description.py42
-rw-r--r--djangorestframework/utils/description.py92
-rw-r--r--djangorestframework/views.py22
-rw-r--r--examples/blogpost/urls.py10
6 files changed, 125 insertions, 47 deletions
diff --git a/.hgignore b/.hgignore
index 5e9c0398..aa541d5c 100644
--- a/.hgignore
+++ b/.hgignore
@@ -2,6 +2,7 @@ syntax: glob
*.pyc
*.db
+assetplatform.egg-info/*
*~
coverage.xml
env
diff --git a/djangorestframework/mixins.py b/djangorestframework/mixins.py
index 73ffbec2..62257592 100644
--- a/djangorestframework/mixins.py
+++ b/djangorestframework/mixins.py
@@ -467,12 +467,13 @@ class InstanceMixin(object):
Store the callable object on the resource class that has been associated with this view.
"""
view = super(InstanceMixin, cls).as_view(**initkwargs)
- if 'resource' in initkwargs:
+ resource = getattr(cls(**initkwargs), 'resource', None)
+ if resource:
# We do a little dance when we store the view callable...
# we need to store it wrapped in a 1-tuple, so that inspect will treat it
# as a function when we later look it up (rather than turning it into a method).
# This makes sure our URL reversing works ok.
- initkwargs['resource'].view_callable = (view,)
+ resource.view_callable = (view,)
return view
diff --git a/djangorestframework/tests/description.py b/djangorestframework/tests/description.py
index d5a1102f..6c494efa 100644
--- a/djangorestframework/tests/description.py
+++ b/djangorestframework/tests/description.py
@@ -37,14 +37,15 @@ class TestViewNamesAndDescriptions(TestCase):
"""Ensure Resource names are based on the classname by default."""
class MockView(BaseView):
pass
- self.assertEquals(get_name(MockView()), 'Mock View')
+ self.assertEquals(get_name(MockView()), 'Mock')
- def test_resource_name_can_be_set_explicitly(self):
- """Ensure Resource names can be set using the 'name' class attribute."""
- example = 'Some Other Name'
- class MockView(BaseView):
- name = example
- self.assertEquals(get_name(MockView()), example)
+ # This has been turned off now.
+ #def test_resource_name_can_be_set_explicitly(self):
+ # """Ensure Resource names can be set using the 'name' class attribute."""
+ # example = 'Some Other Name'
+ # class MockView(BaseView):
+ # name = example
+ # self.assertEquals(get_name(MockView()), example)
def test_resource_description_uses_docstring_by_default(self):
"""Ensure Resource names are based on the docstring by default."""
@@ -66,20 +67,21 @@ class TestViewNamesAndDescriptions(TestCase):
self.assertEquals(get_description(MockView()), DESCRIPTION)
- def test_resource_description_can_be_set_explicitly(self):
- """Ensure Resource descriptions can be set using the 'description' class attribute."""
- example = 'Some other description'
- class MockView(BaseView):
- """docstring"""
- description = example
- self.assertEquals(get_description(MockView()), example)
+ # This has been turned off now
+ #def test_resource_description_can_be_set_explicitly(self):
+ # """Ensure Resource descriptions can be set using the 'description' class attribute."""
+ # example = 'Some other description'
+ # class MockView(BaseView):
+ # """docstring"""
+ # description = example
+ # self.assertEquals(get_description(MockView()), example)
- def test_resource_description_does_not_require_docstring(self):
- """Ensure that empty docstrings do not affect the Resource's description if it has been set using the 'description' class attribute."""
- example = 'Some other description'
- class MockView(BaseView):
- description = example
- self.assertEquals(get_description(MockView()), example)
+ #def test_resource_description_does_not_require_docstring(self):
+ # """Ensure that empty docstrings do not affect the Resource's description if it has been set using the 'description' class attribute."""
+ # example = 'Some other description'
+ # class MockView(BaseView):
+ # description = example
+ # self.assertEquals(get_description(MockView()), example)
def test_resource_description_can_be_empty(self):
"""Ensure that if a resource has no doctring or 'description' class attribute, then it's description is the empty string"""
diff --git a/djangorestframework/utils/description.py b/djangorestframework/utils/description.py
index f7145c0f..25bef80b 100644
--- a/djangorestframework/utils/description.py
+++ b/djangorestframework/utils/description.py
@@ -1,37 +1,91 @@
-"""Get a descriptive name and description for a view,
-based on class name and docstring, and override-able by 'name' and 'description' attributes"""
+"""
+Get a descriptive name and description for a view.
+"""
import re
+from djangorestframework.resources import Resource, FormResource, ModelResource
+
+
+# These a a bit Grungy, but they do the job.
def get_name(view):
- """Return a name for the view.
+ """
+ Return a name for the view.
- If view has a name attribute, use that, otherwise use the view's class name, with 'CamelCaseNames' converted to 'Camel Case Names'."""
- if getattr(view, 'name', None) is not None:
- return view.name
+ If view has a name attribute, use that, otherwise use the view's class name, with 'CamelCaseNames' converted to 'Camel Case Names'.
+ """
+
+ # If we're looking up the name of a view callable, as found by reverse,
+ # grok the class instance that we stored when as_view was called.
+ if getattr(view, 'cls_instance', None):
+ view = view.cls_instance
- if getattr(view, '__name__', None) is not None:
+ # If this view has a resource that's been overridden, then use that resource for the name
+ if getattr(view, 'resource', None) not in (None, Resource, FormResource, ModelResource):
+ name = view.resource.__name__
+
+ # Chomp of any non-descriptive trailing part of the resource class name
+ if name.endswith('Resource') and name != 'Resource':
+ name = name[:-len('Resource')]
+
+ # If the view has a descriptive suffix, eg '*** List', '*** Instance'
+ if getattr(view, '_suffix', None):
+ name += view._suffix
+
+ # Otherwise if it's a function view use the function's name
+ elif getattr(view, '__name__', None) is not None:
name = view.__name__
- elif getattr(view, '__class__', None) is not None: # TODO: should be able to get rid of this case once refactoring to 1.3 class views is complete
+
+ # If it's a view class with no resource then grok the name from the class name
+ elif getattr(view, '__class__', None) is not None:
name = view.__class__.__name__
+
+ # Chomp of any non-descriptive trailing part of the view class name
+ if name.endswith('View') and name != 'View':
+ name = name[:-len('View')]
+
+ # I ain't got nuthin fo' ya
else:
return ''
return re.sub('(((?<=[a-z])[A-Z])|([A-Z](?![A-Z]|$)))', ' \\1', name).strip()
+
+
def get_description(view):
- """Provide a description for the view.
+ """
+ Provide a description for the view.
- By default this is the view's docstring with nice unindention applied."""
- if getattr(view, 'description', None) is not None:
- return getattr(view, 'description')
+ By default this is the view's docstring with nice unindention applied.
+ """
+
+ # If we're looking up the name of a view callable, as found by reverse,
+ # grok the class instance that we stored when as_view was called.
+ if getattr(view, 'cls_instance', None):
+ view = view.cls_instance
+
+
+ # If this view has a resource that's been overridden, then use the resource's doctring
+ if getattr(view, 'resource', None) not in (None, Resource, FormResource, ModelResource):
+ doc = view.resource.__doc__
+
+ # Otherwise use the view doctring
+ elif getattr(view, '__doc__', None):
+ doc = view.__doc__
+
+ # I ain't got nuthin fo' ya
+ else:
+ return ''
+
+ if not doc:
+ return ''
- if getattr(view, '__doc__', None) is not None:
- whitespace_counts = [len(line) - len(line.lstrip(' ')) for line in view.__doc__.splitlines()[1:] if line.lstrip()]
+ whitespace_counts = [len(line) - len(line.lstrip(' ')) for line in doc.splitlines()[1:] if line.lstrip()]
- if whitespace_counts:
- whitespace_pattern = '^' + (' ' * min(whitespace_counts))
- return re.sub(re.compile(whitespace_pattern, re.MULTILINE), '', view.__doc__)
+ # unindent the docstring if needed
+ if whitespace_counts:
+ whitespace_pattern = '^' + (' ' * min(whitespace_counts))
+ return re.sub(re.compile(whitespace_pattern, re.MULTILINE), '', doc)
- return view.__doc__
+ # otherwise return it as-is
+ return doc
- return '' \ No newline at end of file
diff --git a/djangorestframework/views.py b/djangorestframework/views.py
index 81567e68..a0471166 100644
--- a/djangorestframework/views.py
+++ b/djangorestframework/views.py
@@ -51,6 +51,18 @@ class BaseView(ResourceMixin, RequestMixin, ResponseMixin, AuthMixin, View):
name = None
description = None
+ @classmethod
+ def as_view(cls, **initkwargs):
+ """
+ Override the default :meth:`as_view` to store an instance of the view
+ as an attribute on the callable function. This allows us to discover
+ information about the view when we do URL reverse lookups.
+ """
+ view = super(BaseView, cls).as_view(**initkwargs)
+ view.cls_instance = cls(**initkwargs)
+ return view
+
+
@property
def allowed_methods(self):
"""
@@ -122,12 +134,12 @@ class ModelView(BaseView):
class InstanceModelView(InstanceMixin, ReadModelMixin, UpdateModelMixin, DeleteModelMixin, ModelView):
"""A view which provides default operations for read/update/delete against a model instance."""
- pass
+ _suffix = 'Instance'
class ListModelView(ListModelMixin, ModelView):
- """A view which provides default operations for list, against a model in the database."""
- pass
+ """A view which provides default operations for list, against a model in the database."""
+ _suffix = 'List'
class ListOrCreateModelView(ListModelMixin, CreateModelMixin, ModelView):
- """A view which provides default operations for list and create, against a model in the database."""
- pass
+ """A view which provides default operations for list and create, against a model in the database."""
+ _suffix = 'List'
diff --git a/examples/blogpost/urls.py b/examples/blogpost/urls.py
index 130363b1..c677b8fa 100644
--- a/examples/blogpost/urls.py
+++ b/examples/blogpost/urls.py
@@ -6,7 +6,11 @@ from djangorestframework.resources import ModelResource
from blogpost.models import BlogPost, Comment
+
class BlogPostResource(ModelResource):
+ """
+ A Blog Post has a *title* and *content*, and can be associated with zero or more comments.
+ """
model = BlogPost
fields = ('created', 'title', 'slug', 'content', 'url', 'comments')
ordering = ('-created',)
@@ -14,7 +18,11 @@ class BlogPostResource(ModelResource):
def comments(self, instance):
return reverse('comments', kwargs={'blogpost': instance.key})
+
class CommentResource(ModelResource):
+ """
+ A Comment is associated with a given Blog Post and has a *username* and *comment*, and optionally a *rating*.
+ """
model = Comment
fields = ('username', 'comment', 'created', 'rating', 'url', 'blogpost')
ordering = ('-created',)
@@ -25,4 +33,4 @@ urlpatterns = patterns('',
url(r'^(?P<key>[^/]+)/$', InstanceModelView.as_view(resource=BlogPostResource)),
url(r'^(?P<blogpost>[^/]+)/comments/$', ListOrCreateModelView.as_view(resource=CommentResource), name='comments'),
url(r'^(?P<blogpost>[^/]+)/comments/(?P<id>[^/]+)/$', InstanceModelView.as_view(resource=CommentResource)),
-) \ No newline at end of file
+)