mirror of
https://github.com/encode/django-rest-framework.git
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92 lines
3.0 KiB
Python
92 lines
3.0 KiB
Python
"""
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Get a descriptive name and description for a view.
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"""
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import re
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from djangorestframework.resources import Resource, FormResource, ModelResource
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# These a a bit Grungy, but they do the job.
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def get_name(view):
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"""
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Return a name for the view.
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If view has a name attribute, use that, otherwise use the view's class name, with 'CamelCaseNames' converted to 'Camel Case Names'.
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"""
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# If we're looking up the name of a view callable, as found by reverse,
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# grok the class instance that we stored when as_view was called.
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if getattr(view, 'cls_instance', None):
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view = view.cls_instance
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# If this view has a resource that's been overridden, then use that resource for the name
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if getattr(view, 'resource', None) not in (None, Resource, FormResource, ModelResource):
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name = view.resource.__name__
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# Chomp of any non-descriptive trailing part of the resource class name
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if name.endswith('Resource') and name != 'Resource':
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name = name[:-len('Resource')]
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# If the view has a descriptive suffix, eg '*** List', '*** Instance'
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if getattr(view, '_suffix', None):
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name += view._suffix
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# Otherwise if it's a function view use the function's name
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elif getattr(view, '__name__', None) is not None:
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name = view.__name__
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# If it's a view class with no resource then grok the name from the class name
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elif getattr(view, '__class__', None) is not None:
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name = view.__class__.__name__
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# Chomp of any non-descriptive trailing part of the view class name
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if name.endswith('View') and name != 'View':
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name = name[:-len('View')]
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# I ain't got nuthin fo' ya
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else:
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return ''
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return re.sub('(((?<=[a-z])[A-Z])|([A-Z](?![A-Z]|$)))', ' \\1', name).strip()
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def get_description(view):
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"""
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Provide a description for the view.
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By default this is the view's docstring with nice unindention applied.
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"""
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# If we're looking up the name of a view callable, as found by reverse,
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# grok the class instance that we stored when as_view was called.
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if getattr(view, 'cls_instance', None):
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view = view.cls_instance
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# If this view has a resource that's been overridden, then use the resource's doctring
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if getattr(view, 'resource', None) not in (None, Resource, FormResource, ModelResource):
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doc = view.resource.__doc__
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# Otherwise use the view doctring
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elif getattr(view, '__doc__', None):
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doc = view.__doc__
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# I ain't got nuthin fo' ya
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else:
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return ''
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if not doc:
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return ''
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whitespace_counts = [len(line) - len(line.lstrip(' ')) for line in doc.splitlines()[1:] if line.lstrip()]
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# unindent the docstring if needed
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if whitespace_counts:
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whitespace_pattern = '^' + (' ' * min(whitespace_counts))
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return re.sub(re.compile(whitespace_pattern, re.MULTILINE), '', doc)
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# otherwise return it as-is
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return doc
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