[Zope3-checkins] CVS: Zope3/src/zope/app/content - __init__.py:1.5 interfaces.py:1.1 tests.py:1.1

[Philipp von Weitershausen]

Update of /cvs-repository/Zope3/src/zope/app/content
In directory cvs.zope.org:/tmp/cvs-serv905/content

Added Files:
	__init__.py interfaces.py tests.py 
Log Message:
Revived the zope.app.content package to contain content-related code,
incl. interfaces (IContentType), which was moved from
zope.app.interfaces.content.


=== Zope3/src/zope/app/content/__init__.py 1.4 => 1.5 ===
--- /dev/null	Tue Mar  2 13:16:47 2004
+++ Zope3/src/zope/app/content/__init__.py	Tue Mar  2 13:16:12 2004
@@ -0,0 +1,80 @@
+##############################################################################
+#
+# Copyright (c) 2002 Zope Corporation and Contributors.
+# All Rights Reserved.
+#
+# This software is subject to the provisions of the Zope Public License,
+# Version 2.0 (ZPL).  A copy of the ZPL should accompany this distribution.
+# THIS SOFTWARE IS PROVIDED "AS IS" AND ANY AND ALL EXPRESS OR IMPLIED
+# WARRANTIES ARE DISCLAIMED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+# WARRANTIES OF TITLE, MERCHANTABILITY, AGAINST INFRINGEMENT, AND FITNESS
+# FOR A PARTICULAR PURPOSE.
+#
+##############################################################################
+"""
+$Id$
+"""
+from zope.app.content.interfaces import IContentType
+from zope.interface.declarations import providedBy
+
+def queryContentType(object):
+    """returns object content type
+
+    >>> from zope.interface import Interface, implements, directlyProvides
+    >>> class I(Interface):
+    ...     pass
+    >>> directlyProvides(I, IContentType)
+    >>> class C:
+    ...     implements(I)
+    >>> obj = C()
+    >>> c1_ctype = queryContentType(obj)
+    >>> c1_ctype.__name__
+    'I'
+    >>> class I1(I):
+    ...     pass
+    >>> class I2(I1):
+    ...     pass
+    >>> class I3(Interface):
+    ...     pass
+    >>> class C1:
+    ...     implements(I1)
+    >>> obj1 = C1()
+    >>> c1_ctype = queryContentType(obj1)
+    >>> c1_ctype.__name__
+    'I'
+    >>> class C2:
+    ...     implements(I2)
+    >>> obj2 = C2()
+    >>> c2_ctype = queryContentType(obj2)
+    >>> c2_ctype.__name__
+    'I'
+    >>> class C3:
+    ...     implements(I3)
+    >>> obj3 = C3()
+
+    If Interface doesn't provide IContentType, queryContentType returns None.
+    
+    >>> c3_ctype = queryContentType(obj3)
+    >>> c3_ctype
+    >>> class I4(I):
+    ...     pass
+    >>> directlyProvides(I4, IContentType)
+    >>> class C4:
+    ...     implements(I4)
+    >>> obj4 = C4()
+    >>> c4_ctype = queryContentType(obj4)
+    >>> c4_ctype.__name__
+    'I4'
+
+    """
+    
+    object_iro = providedBy(object).__iro__
+    for iface in object_iro:
+        if IContentType.isImplementedBy(iface):
+            return iface
+        
+    return None
+    
+
+
+


=== Added File Zope3/src/zope/app/content/interfaces.py ===
##############################################################################
#
# Copyright (c) 2002 Zope Corporation and Contributors.
# All Rights Reserved.
#
# This software is subject to the provisions of the Zope Public License,
# Version 2.0 (ZPL).  A copy of the ZPL should accompany this distribution.
# THIS SOFTWARE IS PROVIDED "AS IS" AND ANY AND ALL EXPRESS OR IMPLIED
# WARRANTIES ARE DISCLAIMED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
# WARRANTIES OF TITLE, MERCHANTABILITY, AGAINST INFRINGEMENT, AND FITNESS
# FOR A PARTICULAR PURPOSE.
#
##############################################################################
"""Content-related interfaces.

$Id: interfaces.py,v 1.1 2004/03/02 18:16:12 philikon Exp $
"""
from zope.interface.interfaces import IInterface

class IContentType(IInterface):
    """This interface represents a content type.

    If an **interface** implements this interface type, then all object
    implementing the interface are considered content objects.
    """
    




=== Added File Zope3/src/zope/app/content/tests.py ===
##############################################################################
#
# Copyright (c) 2003 Zope Corporation and Contributors.
# All Rights Reserved.
#
# This software is subject to the provisions of the Zope Public License,
# Version 2.0 (ZPL).  A copy of the ZPL should accompany this distribution.
# THIS SOFTWARE IS PROVIDED "AS IS" AND ANY AND ALL EXPRESS OR IMPLIED
# WARRANTIES ARE DISCLAIMED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
# WARRANTIES OF TITLE, MERCHANTABILITY, AGAINST INFRINGEMENT, AND FITNESS
# FOR A PARTICULAR PURPOSE.
#
##############################################################################
"""
$Id: tests.py,v 1.1 2004/03/02 18:16:12 philikon Exp $
"""
import unittest
from zope.testing.doctestunit import DocTestSuite

def test_suite():
    return unittest.TestSuite((
        DocTestSuite('zope.app.content'),
        ))

if __name__ == '__main__': unittest.main()