[Checkins] SVN: z3c.pt/trunk/ Add a TemplateLoader class to have a convenient method to instantiate

[Wichert Akkerman]

Log message for revision 89540:
  Add a TemplateLoader class to have a convenient method to instantiate
  templates. This is similar to the template loaders from other template
  toolkits and makes integration with Pylons a lot simpler.
  

Changed:
  U   z3c.pt/trunk/CHANGES.txt
  A   z3c.pt/trunk/src/z3c/pt/loader.py

-=-
Modified: z3c.pt/trunk/CHANGES.txt
===================================================================
--- z3c.pt/trunk/CHANGES.txt	2008-08-08 10:15:24 UTC (rev 89539)
+++ z3c.pt/trunk/CHANGES.txt	2008-08-08 10:16:44 UTC (rev 89540)
@@ -4,6 +4,11 @@
 Version 0.9.x
 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 
+- Add a TemplateLoader class to have a convenient method to instantiate
+  templates. This is similar to the template loaders from other template
+  toolkits and makes integration with Pylons a lot simpler.
+  [wichert]
+
 - Switch from hardcoding all options in config.py to using parameters
   for the template. This also allows us to use the more logical
   auto_reload flag instead of reusing PROD_MODE, which is also used

Added: z3c.pt/trunk/src/z3c/pt/loader.py
===================================================================
--- z3c.pt/trunk/src/z3c/pt/loader.py	                        (rev 0)
+++ z3c.pt/trunk/src/z3c/pt/loader.py	2008-08-08 10:16:44 UTC (rev 89540)
@@ -0,0 +1,41 @@
+import errno
+import os.path
+from z3c.pt.pagetemplate import PageTemplateFile
+from z3c.pt.texttemplate import TextTemplateFile
+
+class TemplateLoader(object):
+    """Template loader tool.
+    """
+
+    def __init__(self, search_path=None, auto_reload=False, cachedir=None):
+        self.search_path = search_path is not None and search_path or []
+        self.auto_reload = auto_reload
+        self.cachedir = cachedir
+        if cachedir is not None:
+            if not os.path.isdir(cachedir):
+                raise ValueError, "Invalid cachedir")
+
+
+    def _load(self, filename, klass):
+        if os.path.isabs(filename):
+            return PageTemplateFile(filename)
+
+        for path in self.search_path:
+            path = os.path.join(path, filename)
+            try:
+                return klass(path, auto_reload=self.auto_reload,
+                                cachedir=self.cachedir)
+            except OSError, e:
+                if e.errno!=erro.ENOENT:
+                    raise
+
+        raise ValueError("Can not find template %s" % filename)
+
+
+    def load_page(self, filename):
+        return self._load(filename, PageTemplateFile)
+
+
+    def load_text(self, filename):
+        return self._load(filename, TextTemplateFile)
+


Property changes on: z3c.pt/trunk/src/z3c/pt/loader.py
___________________________________________________________________
Name: svn:eol-style
   + native