Several bugfixes while handling abstract classes (appy.gen) and added a first code chunk used while installing a gen-application for Plone 3.

gen/plone3/installer.py

@@ -0,0 +1,38 @@
+'''This package contains stuff used at run-time for installing a generated
+   Plone product.'''
+
+# ------------------------------------------------------------------------------
+from appy.gen.plone25.installer import PloneInstaller as Plone25Installer
+
+class ZCTextIndexInfo:
+    '''Silly class used for storing information about a ZCTextIndex.'''
+    lexicon_id = "plone_lexicon"
+    index_type = 'Okapi BM25 Rank'
+
+class PloneInstaller(Plone25Installer):
+    '''This Plone installer runs every time the generated Plone product is
+       installed or uninstalled (in the Plone configuration interface).'''
+    @staticmethod
+    def updateIndexes(ploneSite, indexInfo, logger):
+        '''This method creates or updates, in a p_ploneSite, definitions of
+           indexes in its portal_catalog, based on index-related information
+           given in p_indexInfo. p_indexInfo is a dictionary of the form
+           {s_indexName:s_indexType}. Here are some examples of index types:
+           "FieldIndex", "ZCTextIndex", "DateIndex".'''
+        catalog = ploneSite.portal_catalog
+        indexNames = catalog.indexes()
+        for indexName, indexType in indexInfo.iteritems():
+            if indexName not in indexNames:
+                # We need to create this index
+                if indexType != 'ZCTextIndex':
+                    catalog.addIndex(indexName, indexType)
+                else:
+                    catalog.addIndex(indexName,indexType,extra=ZCTextIndexInfo)
+                logger.info('Creating index "%s" of type "%s"...' % \
+                            (indexName, indexType))
+                # Indexing database content based on this index.
+                catalog.reindexIndex(indexName, ploneSite.REQUEST)
+                logger.info('Done.')
+        # TODO: if the index already exists but has not the same type, we
+        # re-create it with the same type and we reindex it.
+# ------------------------------------------------------------------------------