Hello all, Thanks for the replies.
On Fri, 2011-08-12 at 10:34 -0400, Tres Seaver wrote: > That is the accepted mode. For many applications using pagination, > the percentage of page views which ever use anything but the first > batch is pretty tiny. Note as well that zope.catalog returns its > result as sets of "document IDs", rather than the real objects, so you > don't pay the cost of pulling the "early" items into the object cache: > you only need to reify the objects for the "current" batch. Then I will go with catalog approach. In this regard I need one more clarification. Say I have an object with following interface class IMyObject(Interface): id = TextLine(title=u'Object ID') name = TextLine(title=u'Name') ... and say I have registered the catalog like this catalog['object_id'] = TextIndex('id', IMyObject) The 'id' field is same as the key value under which the MyObject is stored in its parent container. And say if the 'id' field value always starts with a 'p' so its values are like 'p0001', 'p0002' etc. So, while searching the catalog I query like this catalog.apply({'object_id': 'p*'}) I get all the objects from the container as desired :) My problem is solved, but out of curiosity I am asking this. If I query like this catalog.apply({'object_id': '*'}) I get the following error ParseError: Query contains only common words: '*' So, How do I query a catalog to return all its objects? I guess I can trust the order of objects returned while querying with _limit option. Because I will be querying for the same keywords n number of times with just the changing _limit values. Am I right? Is there any detailed documentation explaining the query format to be used while querying the catalog other than the documentation in pypi of zope.catalog? Thanks Regards -- Joshua Immanuel HiPro IT Solutions Private Limited http://hipro.co.in
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