[Zope-dev] ZCatalog searching for missing values
Hi all, We've installed Kavio's CatalogQuery product and are very happy with it. Haven't looked at the ZOQLMethod from iuveno yet, but both look like great steps in the right direction. I have one question: is it possible using a normal catalog query or Kavio's catalog query to check if a value is not set? The representation returned is Missing.Value, but I seem to be unable to say, e.g, 'Description == Missing.Value' etc. How hard is it to add such functionality? Bye, -- Bjorn ___ 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 searching for missing values
We've installed Kavio's CatalogQuery product and are very happy with it. Haven't looked at the ZOQLMethod from iuveno yet, but both look like great steps in the right direction. Thanks. I actually need to look at Casey's code and see what I can reuse. The efficiency of my version is not that great yet, but much more flexible. So I want to take Casey's code and optimize mine a little. BTW, I just added a mailing list and a poll for ZOQL. Please go to http://demo.iuveno-net.de/iuveno/Products/ZOQLMethod and vote in the poll, so I can get an estimate of the general interest. I have one question: is it possible using a normal catalog query or Kavio's catalog query to check if a value is not set? The representation returned is Missing.Value, but I seem to be unable to say, e.g, 'Description == Missing.Value' etc. How hard is it to add such functionality? You mean, whether the system checks, if a property exists at all or is set to None? I think both would be no problem. 1. Property exists or not: I could support a function, like: exists(Property) Example: SELECT * FROM Test WHERE exists(Property); 2. Property is set to None: Simply use equal: Property == None Note: That might work already? I have to check... Example: SELECT * FROM Test WHERE Property == None; Regards, Stephan -- Stephan Richter CBU - Physics and Chemistry Student Web2k - Web Design/Development Technical Project Management ___ 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 searching for missing values
Having an exists function would be great. I was trying to do the same using CatalogQuery, but I found no way to check for Missing.Value, which is the repr() of what's in the catalog's metadata field for objects that don't have that attribute/function. I also ran into problems doing more complex or'ing and and'ing, and I assume we'll have better luck with ZOQLMethod for that. I just tried out ZOQLMethod as well. Couldn't get it to work, but it looks like really solid craftsmanship. I like the user-friendly way of selecting base object and the complete syntax. :) Some questions: 1. I couldn't get any query to work. I keep getting exceptions.TypeError argument 2 to map() must be a sequence object Here's an example query that I've tried SELECT id WHERE title == '' RECURSIVE; 2. Is the ZCatalog searching implemented? How do I activate it? 3. Do you have any plans to implement JOIN? The exists function would be very cool. Keep up the great work. Hope this helps flush out some features :) Bye, -- Bjorn Stephan wrote: [...] I actually need to look at Casey's code and see what I can reuse. The efficiency of my version is not that great yet, but much more flexible. So I want to take Casey's code and optimize mine a little. BTW, I just added a mailing list and a poll for ZOQL. Please go to http://demo.iuveno-net.de/iuveno/Products/ZOQLMethod and vote in the poll, so I can get an estimate of the general interest. I have one question: is it possible using a normal catalog query or Kavio's catalog query to check if a value is not set? The representation returned is Missing.Value, but I seem to be unable to say, e.g, 'Description == Missing.Value' etc. How hard is it to add such functionality? You mean, whether the system checks, if a property exists at all or is set to None? I think both would be no problem. 1. Property exists or not: I could support a function, like: exists(Property) Example: SELECT * FROM Test WHERE exists(Property); 2. Property is set to None: Simply use equal: Property == None Note: That might work already? I have to check... Example: SELECT * FROM Test WHERE Property == None; Regards, Stephan -- Stephan Richter CBU - Physics and Chemistry Student Web2k - Web Design/Development Technical Project Management ___ 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 )
RE: [Zope-dev] ZCatalog searching for missing values
Ahhh... Got it working now. Thanks. :) Not sure I know how to activate ZCatalog searching though, or if it is on all the time; the example only mentions ZCatalog once when it deletes it. What determines if a search is a raw object-database search and when it uses the ZCatalog? Always returning the objects is going to a bit slow, though. Couldn't it just return the Pluggable Brains if you search the ZCatalog; or at least have an option to only return them? Bye, -- Bjorn -Original Message- From: Stephan Richter [mailto:[EMAIL PROTECTED]] Sent: Monday, October 08, 2001 23:33 To: Bjorn Stabell Cc: [EMAIL PROTECTED] Subject: RE: [Zope-dev] ZCatalog searching for missing values I just tried out ZOQLMethod as well. Couldn't get it to work, but it looks like really solid craftsmanship. I like the user-friendly way of selecting base object and the complete syntax. :) Some questions: 1. I couldn't get any query to work. I keep getting exceptions.TypeError argument 2 to map() must be a sequence object Solved. See below. Here's an example query that I've tried SELECT id WHERE title == '' RECURSIVE; You can only select meta types (this is by design; I just don't want to deal with brains and all that stuff right now.)!! Did you see the help? It has a long example in there as well. But there is another bug. You have to specify FROM right now. I will fix that. Okay, is fixed for the next release. So, SELECT DTML Method FROM . WHERE title == '' RECURSIVE; should work. 2. Is the ZCatalog searching implemented? How do I activate it? Yes, see the Rather Lengthy Example. 3. Do you have any plans to implement JOIN? No, for the reasons given above. You select only objects, not attributes. BUT, patches are always welcomed!!! :-) The exists function would be very cool. I will look into this. Hopefully it will be not too hard to implement. Keep up the great work. Hope this helps flush out some features :) I hope I will. :-) Yes it does. If you and all the other Zope people could write me some arguments to support attribute selection, then I will look into it (but it will be not that easy). Regards, Stephan -- Stephan Richter CBU - Physics and Chemistry Student Web2k - Web Design/Development Technical Project Management ___ 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] Adding a role programatically
Hi All: I would like to add a role programatically, I was wondering if any one has tried adding a role, I was looking for a python script that would do this. I am adding a role into an Oracle table through a form, so I would like to also add the same role into ZOPE, thus having only one point of entry to both. Thanks much. Kiran. ___ 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] Re: core session tracking and zope 2.5 integration
Chris - Thanks for your response. I had already put together a prototype since my first mail to you on this subject and just completed integration with version 0.9. I have placed a tar bundle at the following url: http://www.zope.org/Members/natsukashi/Prototypes/CoreSessionUserFolder.tgz or link via zope.org home page http://www.zope.org/Members/natsukashi/ with a bundled example (stest_internal.zexp). Please make sure that you read both of the README.txt files. bash$ tar --exclude CVS -cvzf CoreSessionUserFolder.tgz CoreSessionUserFolder CoreSessionUserFolder/ CoreSessionUserFolder/__init__.py CoreSessionUserFolder/User.py CoreSessionUserFolder/images/ CoreSessionUserFolder/images/UserFolder_icon.gif CoreSessionUserFolder/help/ CoreSessionUserFolder/refresh.txt CoreSessionUserFolder/patches/ CoreSessionUserFolder/patches/README.txt CoreSessionUserFolder/patches/CMFCore-CookieCrumbler-p1.txt CoreSessionUserFolder/patches/CoreSessionTracking0-9-p1.txt CoreSessionUserFolder/patches/zope-2.4.1-absolute_url-p1.txt CoreSessionUserFolder/SessionIdManager.py CoreSessionUserFolder/import/ CoreSessionUserFolder/import/README.txt CoreSessionUserFolder/import/stest_internal.zexp It is far from perfect but just a proof of concept. This approach would also benefit from the encrypted user password support (I believe). Please take a look and provide some feedback. thanks, - joe At Sat, 6 Oct 2001 02:04:49 -0400, Chris McDonough wrote: I need to elaborate more on my thoughts but I thought it would be worthwhile to ask if something like this is already in the works before I spend too much investigating how to implement such a acl_user folder. No, nothing like this in the works. It'd be pretty neat to see something like it, at least as proof of concept... ___ 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 )
