ZSQLExtend/ZSQLExtend.py - diff

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-version 1.119, 2007/08/09 15:09:27
+version 1.120, 2007/11/05 18:45:35
  Line 474  class ZSQLExtendFolder(Folder,Persistent
          """
          return urllib.quote(txt)
+     def createIdSet(self, resultset, idField=None):
+         """returns a (frozen)set of IDs from a SQL-resultset (using idField) or a list (if idField=None)"""
+         if idField is None:
+             return frozenset(resultset)
+         else:
+             idlist = [r[idField] for r in resultset]
+             return frozenset(idlist)
+     def opIdSet(self, a, b, op):
+         """operate on sets a and b"""
+         if (op == 'intersect'):
+             return a.intersection(b)
+         elif (op == 'union'):
+             return a.union(b)
+         elif (op == 'diff'):
+             return a.difference(b)
      def searchRel(self,relStatement,statement,wherePart,classes):
          """suche relative haufigkeiten (experimental)"""
          ret={}