Added 'repoze.bfg.push:pushpage' decorator

o Creates BFG views from callables which take (context, request) and return
  a mapping of top-level names.

4 files changed, 72 insertions, 1 deletions

diff --git a/CHANGES.txt b/CHANGES.txt
index cf765f3a0..7e4a48ccf 100644
--- a/CHANGES.txt
+++ b/CHANGES.txt
@@ -1,4 +1,10 @@
+After 0.1
+
+  - Added 'repoze.bfg.push:pushpage' decorator, which creates BFG views
+    from callables which take (context, request) and return a mapping of
+    top-level names.
+
 0.1
 
-  Initial release.
+  - Initial release.
 
diff --git a/repoze/bfg/push.py b/repoze/bfg/push.py
new file mode 100644
index 000000000..205c7f26e
--- /dev/null
+++ b/repoze/bfg/push.py
@@ -0,0 +1,25 @@
+import os.path
+from repoze.bfg.template import render_template
+
+class pushpage(object):
+    """ Decorator for functions which return template namespaces.
+
+    E.g.:
+
+      @pushpage('www/my_template.pt')
+      def my_view(context, request):
+          return {'a': 1, 'b': ()}
+    """
+    def __init__(self, template):
+        self.template = template
+
+    def __call__(self, wrapped):
+        prefix = os.path.dirname(wrapped.func_globals['__file__'])
+        path = os.path.join(prefix, self.template)
+
+        def _curried(context, request):
+            kw = wrapped(context, request)
+            return render_template(path, **kw)
+        _curried.__name__ = wrapped.__name__
+
+        return _curried
diff --git a/repoze/bfg/tests/pp.pt b/repoze/bfg/tests/pp.pt
new file mode 100644
index 000000000..9df7d22da
--- /dev/null
+++ b/repoze/bfg/tests/pp.pt
@@ -0,0 +1,3 @@
+<p xmlns="http://www.w3.org/1999/xhtml"
+   xmlns:tal="http://xml.zope.org/namespaces/tal"
+   tal:content="wrapped">WRAPPED</p>
diff --git a/repoze/bfg/tests/test_push.py b/repoze/bfg/tests/test_push.py
new file mode 100644
index 000000000..907503983
--- /dev/null
+++ b/repoze/bfg/tests/test_push.py
@@ -0,0 +1,37 @@
+import unittest
+
+from zope.component.testing import PlacelessSetup
+
+class Test_pushpage(unittest.TestCase, PlacelessSetup):
+    def setUp(self):
+        PlacelessSetup.setUp(self)
+
+    def tearDown(self):
+        PlacelessSetup.tearDown(self)
+
+    def _zcmlConfigure(self):
+        import repoze.bfg
+        import zope.configuration.xmlconfig
+        zope.configuration.xmlconfig.file('configure.zcml', package=repoze.bfg)
+
+    def _getTargetClass(self):
+        from repoze.bfg.push import pushpage
+        return pushpage
+
+    def _makeOne(self, template):
+        return self._getTargetClass()(template)
+
+    def test_decorated_has_same_name_as_wrapped(self):
+        pp = self._makeOne('pp.pt')
+        wrapped = pp(to_wrap)
+        self.assertEqual(wrapped.__name__, 'to_wrap')
+
+    def test___call___passes_names_from_wrapped(self):
+        self._zcmlConfigure()
+        pp = self._makeOne('pp.pt')
+        wrapped = pp(to_wrap)
+        response = wrapped(object(), object())
+        self.assertEqual(response.body, '<p>WRAPPED</p>')
+
+def to_wrap(context, request):
+    return {'wrapped': 'WRAPPED'}