RE: [Zope-dev] ZCatalog features
Title: RE: [Zope-dev] ZCatalog features Sorry... a user came into the office as I was writing that email and completely broke my train of though :( g... What I meant to say was, I think that access to the Union and Intersection operators would be a very useful feature as long as it would not involve a change to any other documented APIs etc... By user visible, I meant the AND/OR keyword processing in catalog queries on textindex fields. Would it be possible/easy to add this to other field types? Adrian... -Original Message- From: Chris McDonough [mailto:[EMAIL PROTECTED]] Sent: Monday, 30 April 2001 17:17 To: Adrian Hungate Cc: [EMAIL PROTECTED] Subject: Re: [Zope-dev] ZCatalog features RE: [Zope-dev] ZCatalog features I think that the idea of exposing these _in addition_ to (as opposed to instead of) the current way it works is a good idea. What does these refer to here? if you mean intersection and union operations, this is the plan. How hard would it be to add the current 'user visible' boolean logic to field types other than text? I'm not sure what you mean... what feature are you referring to? Thanks! - C -Original Message- From: Chris McDonough [mailto:[EMAIL PROTECTED]] Sent: Saturday, 28 April 2001 17:10 To: Morten W. Petersen Cc: [EMAIL PROTECTED] Subject: Re: [Zope-dev] ZCatalog features Morten W. Petersen wrote: Hia guys, A couple of comments and questions about the ZCatalog: Is it possible to pass an argument to the catalog so that returned brains would instead be actual objects? Not currentl, although the new brain objects have a method 'getObject' that makes getting the object straightforward while you're iterating over a bunch of them. Given that we have to manually join search results, because ZCatalog doesn't support ORs etc (for FieldIndexes), wouldn't it be useful to have some sort of tool that could take a set of results, and return a result with only unique values? Yes. There's a propsal on dev.zope.org to expose union and intersection operations to users of the catalog. http://dev.zope.org/Wikis/DevSite/Proposals/UnionAndIntersectionOperations . Comments are appreciated. ___ Zope-Dev maillist - [EMAIL PROTECTED] http://lists.zope.org/mailman/listinfo/zope-dev ** No cross posts or HTML encoding! ** (Related lists - http://lists.zope.org/mailman/listinfo/zope-announce http://lists.zope.org/mailman/listinfo/zope )
Re: [Zope-dev] ZCatalog features
RE: [Zope-dev] ZCatalog features What I meant to say was, I think that access to the Union and Intersection operators would be a very useful feature as long as it would not involve a change to any other documented APIs etc... OK, good this is what's specified in the fishbowl proposal (in a number of ways). By user visible, I meant the AND/OR keyword processing in catalog queries on textindex fields. Would it be possible/easy to add this to other field types? Not really... the default behavior of field/keyword indexes is to do a union on the documents that match a list passed in, e.g. ['a', 'b'] matches documents with either 'a' or 'b' as index elements. There can be no and for fieldindexes (because they only store one value). For kw indexes it may make sense, but is unimplemented. Drop-in indexes will hopefully solve many of these problems. -Original Message- From: Chris McDonough [mailto:[EMAIL PROTECTED]] Sent: Monday, 30 April 2001 17:17 To: Adrian Hungate Cc: [EMAIL PROTECTED] Subject: Re: [Zope-dev] ZCatalog features RE: [Zope-dev] ZCatalog features I think that the idea of exposing these _in addition_ to (as opposed to instead of) the current way it works is a good idea. What does these refer to here? if you mean intersection and union operations, this is the plan. How hard would it be to add the current 'user visible' boolean logic to field types other than text? I'm not sure what you mean... what feature are you referring to? Thanks! - C -Original Message- From: Chris McDonough [mailto:[EMAIL PROTECTED]] Sent: Saturday, 28 April 2001 17:10 To: Morten W. Petersen Cc: [EMAIL PROTECTED] Subject: Re: [Zope-dev] ZCatalog features Morten W. Petersen wrote: Hia guys, A couple of comments and questions about the ZCatalog: Is it possible to pass an argument to the catalog so that returned brains would instead be actual objects? Not currentl, although the new brain objects have a method 'getObject' that makes getting the object straightforward while you're iterating over a bunch of them. Given that we have to manually join search results, because ZCatalog doesn't support ORs etc (for FieldIndexes), wouldn't it be useful to have some sort of tool that could take a set of results, and return a result with only unique values? Yes. There's a propsal on dev.zope.org to expose union and intersection operations to users of the catalog. http://dev.zope.org/Wikis/DevSite/Proposals/UnionAndIntersectionOperations . Comments are appreciated. ___ Zope-Dev maillist - [EMAIL PROTECTED] http://lists.zope.org/mailman/listinfo/zope-dev ** No cross posts or HTML encoding! ** (Related lists - http://lists.zope.org/mailman/listinfo/zope-announce http://lists.zope.org/mailman/listinfo/zope ) ___ Zope-Dev maillist - [EMAIL PROTECTED] http://lists.zope.org/mailman/listinfo/zope-dev ** No cross posts or HTML encoding! ** (Related lists - http://lists.zope.org/mailman/listinfo/zope-announce http://lists.zope.org/mailman/listinfo/zope )
[Zope-dev] ZCatalog features
Hia guys, A couple of comments and questions about the ZCatalog: Is it possible to pass an argument to the catalog so that returned brains would instead be actual objects? Given that we have to manually join search results, because ZCatalog doesn't support ORs etc (for FieldIndexes), wouldn't it be useful to have some sort of tool that could take a set of results, and return a result with only unique values? Cheers, Morten ___ Zope-Dev maillist - [EMAIL PROTECTED] http://lists.zope.org/mailman/listinfo/zope-dev ** No cross posts or HTML encoding! ** (Related lists - http://lists.zope.org/mailman/listinfo/zope-announce http://lists.zope.org/mailman/listinfo/zope )
Re: [Zope-dev] ZCatalog features
Morten W. Petersen wrote: Hia guys, A couple of comments and questions about the ZCatalog: Is it possible to pass an argument to the catalog so that returned brains would instead be actual objects? Not currentl, although the new brain objects have a method 'getObject' that makes getting the object straightforward while you're iterating over a bunch of them. Given that we have to manually join search results, because ZCatalog doesn't support ORs etc (for FieldIndexes), wouldn't it be useful to have some sort of tool that could take a set of results, and return a result with only unique values? Yes. There's a propsal on dev.zope.org to expose union and intersection operations to users of the catalog. http://dev.zope.org/Wikis/DevSite/Proposals/UnionAndIntersectionOperations . Comments are appreciated. ___ Zope-Dev maillist - [EMAIL PROTECTED] http://lists.zope.org/mailman/listinfo/zope-dev ** No cross posts or HTML encoding! ** (Related lists - http://lists.zope.org/mailman/listinfo/zope-announce http://lists.zope.org/mailman/listinfo/zope )
