Changeset 4058 for waeup/branches/ulif-rewrite/src/waeup/viewlets.py

Timestamp:

3 Apr 2009, 10:45:17 (16 years ago)

Author:

uli

Message:

Add import/export views and viewlets.

File:

• waeup/branches/ulif-rewrite/src/waeup/viewlets.py (modified) (3 diffs)

waeup/branches/ulif-rewrite/src/waeup/viewlets.py

@@ -3 +3 @@
 import zope.interface
 from zope.component import getMultiAdapter
-from interfaces import IUniversity, IWAeUPObject, IWAeUPXMLExporter
+from zope.location.interfaces import ISite
+from waeup.interfaces import (IUniversity, IWAeUPObject, IWAeUPXMLExporter,
+                        IWAeUPXMLImporter)
 
 grok.context(zope.interface.Interface)
@@ -35 +37 @@
             'Content-Type', 'text/xml; charset=UTF-8')
         return xml
+
+class ImportXML(grok.View):
+    """Replace the context object by an object created from an XML
+       representation.
+
+       XXX: This does not work for ISite objects, i.e. for instance
+            for complete University objects.
+    """
+    grok.require('waeup.manageUniversity')
+    grok.template('master')
+
+    def update(self, xmlfile=None, CANCEL=None, SUBMIT=None):
+        if CANCEL is not None:
+            self.redirect(self.url(self.context))
+            return
+        if not xmlfile:
+            return
+        importer = IWAeUPXMLImporter(self.context)
+        obj = importer.doImport(xmlfile)
+        if type(obj) != type(self.context):
+            return
+        parent = self.context.__parent__
+        name = self.context.__name__
+        self.context = obj
+        if hasattr(parent, name):
+            setattr(parent, name, obj)
+        else:
+            del parent[name]
+            parent[name] = obj
+            pass
+        return
+        
+            
     
 class Head(grok.ViewletManager):
@@ -97 +132 @@
         return '<div class="portlet"><a href="export.xml">%s</a></div>' % (
             'Export as XML',)
+
+class ImportLink(grok.Viewlet):
+    grok.viewletmanager(LeftSidebar)
+    grok.view(Index)
+    grok.order(99)
+    grok.require('waeup.manageUniversity')
+
+    def render(self):
+        if ISite.providedBy(self.context):
+            # We cannot simply replace local sites.
+            return ''
+        return '<div class="portlet"><a href="importxml">%s</a></div>' % (
+            'Import from XML',)
     
 class MainArea(grok.ViewletManager):
     grok.name('main')
 
+class ImportXMLViewlet(grok.Viewlet):
+    grok.viewletmanager(MainArea)
+    grok.view(ImportXML)
+    
 
 class Footer(grok.ViewletManager):