Changeset 1927 in products for quintagroup.canonicalpath/trunk/quintagroup/canonicalpath/adapters.py

Timestamp:

Mar 17, 2010 4:41:03 PM (14 years ago)

Author:

mylan

Message:

#177: Add ICanonicalLink interface and default adapter

File:

• quintagroup.canonicalpath/trunk/quintagroup/canonicalpath/adapters.py (modified) (3 diffs)

quintagroup.canonicalpath/trunk/quintagroup/canonicalpath/adapters.py

@@ -8 +8 @@
 
 from quintagroup.canonicalpath.interfaces import ICanonicalPath
+from quintagroup.canonicalpath.interfaces import ICanonicalLink
 
-PROPERTY = "canonical_path"
+PROPERTY_PATH = "canonical_path"
+PROPERTY_LINK = "canonical_link"
 
 _is_canonical = re.compile(
@@ -24 +26 @@
     def __init__(self, context):
         self.context = context
+        self.purl = getToolByName(self.context,'portal_url')
 
-    def _validate(self, value):
+    def _validate_path(self, value):
+        value.strip()
+        if not _is_canonical(value):
+            raise InvalidValue(value)
+        return value
+
+    def getCanonicalPath(self):
+        """ First of all return value from the PROPERTY_PATH,
+        if PROPERTY_PATH not exist - return default value
+        """
+        if self.context.hasProperty(PROPERTY_PATH):
+            return self.context.getProperty(PROPERTY_PATH)
+
+        return '/'+'/'.join(self.purl.getRelativeContentPath(self.context))
+
+    def setCanonicalPath(self, value):
+        """ First validate value, than add/updater PROPERTY_PATH
+        """
+        value = self._validate_path(value)
+
+        if self.context.hasProperty(PROPERTY_PATH):
+            self.context._updateProperty(PROPERTY_PATH, value)
+        else:
+            self.context._setProperty(PROPERTY_PATH, value, type="string")
+
+    canonical_path = property(getCanonicalPath, setCanonicalPath)
+
+
+class DefaultCanonicalLinkAdapter(object):
+    """Adapts base content to canonical link.
+    """
+    adapts(ITraversable)
+    implements(ICanonicalLink)
+
+    def __init__(self, context):
+        self.context = context
+        self.purl = getToolByName(self.context,'portal_url')
+
+    def _validate_link(self, value):
         value.strip()
         if not _is_canonical(value):
@@ -31 +72 @@
         return value
         
+    def getCanonicalLink(self):
+        """ First of all return value from the PROPERTY_LINK,
+        if PROPERTY_LINK not exist - return default value
+        """
+        if self.context.hasProperty(PROPERTY_LINK):
+            return self.context.getProperty(PROPERTY_LINK)
 
-    def getCanonicalPath(self):
-        """ First of all return value from the PROPERTY,
-        if PROPERTY not exist - return default value
+        return self.context.absolute_url()
+
+    def setCanonicalLink(self, value):
+        """ First validate value, than add/updater PROPERTY_LINK
         """
-        if self.context.hasProperty(PROPERTY):
-            return self.context.getProperty(PROPERTY)
+        value = self._validate_link(value)
 
-        purl = getToolByName(self.context,'portal_url')
-        return '/'+'/'.join(purl.getRelativeContentPath(self.context))
+        if self.context.hasProperty(PROPERTY_LINK):
+            self.context._updateProperty(PROPERTY_LINK, value)
+        else:
+            self.context._setProperty(PROPERTY_LINK, value, type="string")
 
-    def setCanonicalPath(self, value):
-        """ First validate value, than add/updater PROPERTY
-        """
-        value = self._validate(value)
+    canonical_link = property(getCanonicalLink, setCanonicalLink)
 
-        if self.context.hasProperty(PROPERTY):
-            self.context._updateProperty(PROPERTY, value)
-        else:
-            self.context._setProperty(PROPERTY, value, type="string")
-
-    canonical_path = property(getCanonicalPath, setCanonicalPath)