fix for creation of some resources via new() method

CHANGELOG.rst

@@ -1,6 +1,13 @@
 Changelog
 ---------
 
+0.6.1 (2014-02-XX)
+++++++++++++++++++
+
+- Fixed: `Issue #10 <https://github.com/maxtepkeev/python-redmine/issues/10>`__ (Python
+  Redmine was incorrectly raising ``ResourceAttrError`` while creating some resources via
+  new() method)
+
 0.6.0 (2014-02-19)
 ++++++++++++++++++
 

redmine/resources.py

@@ -99,7 +99,7 @@ class _Resource(object):
     _changes = {}
     _includes = ()
     _relations = ()
-    _readonly = ('id', 'created_on', 'updated_on', 'author', 'user', 'project', 'issue')  #: Read-only attributes
+    _readonly = ('id', 'created_on', 'updated_on', 'author', 'user', 'project', 'issue')
     __length_hint__ = None  # fixes Python 2.6 list() call on resource object
 
     def __init__(self, manager, attributes):
@@ -208,7 +208,7 @@ def post_update(self):
 
     def save(self):
         """Creates or updates a resource"""
-        if any(item in self.attributes and item not in (self._relations + self._includes) for item in self._readonly):
+        if 'id' in self.attributes or 'created_on' in self.attributes:
             self.pre_update()
             self.manager.update(self.internal_id, **self._changes)
             self.attributes['updated_on'] = datetime.utcnow().strftime(self.manager.redmine.datetime_format)

tests/test_resources.py

@@ -515,7 +515,8 @@ def test_wiki_page_delete(self):
         self.assertEqual(self.redmine.wiki_page.delete('Foo', project_id=1), True)
 
     def test_wiki_page_update(self):
-        self.response.json.return_value = responses['wiki_page']['get']
+        response = {'wiki_page': {'title': 'Foo', 'version': 1, 'created_on': '2012-06-27T12:48:15Z'}}
+        self.response.json.return_value = response
         wiki_page = self.redmine.wiki_page.get('Foo', project_id=1)
         wiki_page.text = 'Foo'
         self.assertEqual(wiki_page.save(), True)