Re: [Dspace-tech] Having A Sub-Community Collection appear in 2 Communities?
On Fri, Jul 20, 2007 at 06:06:42PM -0400, Richard Rodgers wrote: What behavior do you want when (one of) the parents is deleted? Normally DSpace deletes everything below a community (sub-communities, collections, etc) I assume you would want any sub-community that has more than one parent to *not* be deleted. Is this true with your modified code? Even though it's not officially supported to have communities with multiple parents, Community.removeSubcommunity() does check to make sure that the child node is orphaned before deleting it. cheers, Jim -- James Rutherford | Hewlett-Packard Limited registered Office: Research Engineer | Cain Road, HP Labs | Bracknell, Bristol, UK | Berks +44 117 312 7066 | RG12 1HN. [EMAIL PROTECTED] | Registered No: 690597 England The contents of this message and any attachments to it are confidential and may be legally privileged. If you have received this message in error, you should delete it from your system immediately and advise the sender. To any recipient of this message within HP, unless otherwise stated you should consider this message and attachments as HP CONFIDENTIAL. - This SF.net email is sponsored by: Splunk Inc. Still grepping through log files to find problems? Stop. Now Search log events and configuration files using AJAX and a browser. Download your FREE copy of Splunk now http://get.splunk.com/ ___ DSpace-tech mailing list DSpace-tech@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/dspace-tech
[Dspace-tech] Having A Sub-Community Collection appear in 2 Communities?
Hi... We are having a problem with people wanting to see the same Sub-Community (and it's collections) appear in 2 different Collections. For instance, currently I have a Sub-Community called Albert Mann Library. It appears in our Community Cornell University Library, but the people at Mann Library would also like their Library appearing in the hierarchy of College of Agriculture and Life Sciences. Can this be done? *** George Kozak Coordinator Web Development and Management Digital Media Group 501 Olin Library Cornell University 607-255-8924 *** [EMAIL PROTECTED] - This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2005. http://clk.atdmt.com/MRT/go/vse012070mrt/direct/01/ ___ DSpace-tech mailing list DSpace-tech@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/dspace-tech
Re: [Dspace-tech] Having A Sub-Community Collection appear in 2 Communities?
Hi! I have the some problem. I would like to see the same sub-community inside several Communities. This means that one sub-community should have more than one father. The CommunityFilliator class states that: first test - proposed child must currently be an orphan So, I've commented this check and i can set one sub-community with several fathers. Im pretty sure that this modification is harmless, but, if this lines were in the code, they were there for a reason! Is it dangerous this change? Could this bring any side-effects? Marcelo Quoting George Kozak [EMAIL PROTECTED]: Hi... We are having a problem with people wanting to see the same Sub-Community (and it's collections) appear in 2 different Collections. For instance, currently I have a Sub-Community called Albert Mann Library. It appears in our Community Cornell University Library, but the people at Mann Library would also like their Library appearing in the hierarchy of College of Agriculture and Life Sciences. Can this be done? *** George Kozak Coordinator Web Development and Management Digital Media Group 501 Olin Library Cornell University 607-255-8924 *** [EMAIL PROTECTED] - This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2005. http://clk.atdmt.com/MRT/go/vse012070mrt/direct/01/ ___ DSpace-tech mailing list DSpace-tech@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/dspace-tech - This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2005. http://clk.atdmt.com/MRT/go/vse012070mrt/direct/01/___ DSpace-tech mailing list DSpace-tech@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/dspace-tech
Re: [Dspace-tech] Having A Sub-Community Collection appear in 2 Communities?
Hi Marcelo: The sub-community functionality was designed as a single-parent model. I'd need to study the code/DB schema to see what potential problems there may be, but one question springs to mind immediately: What behavior do you want when (one of) the parents is deleted? Normally DSpace deletes everything below a community (sub-communities, collections, etc) I assume you would want any sub-community that has more than one parent to *not* be deleted. Is this true with your modified code? Thanks, Richard R On Fri, 2007-07-20 at 22:45 +0100, [EMAIL PROTECTED] wrote: Hi! I have the some problem. I would like to see the same sub-community inside several Communities. This means that one sub-community should have more than one father. The CommunityFilliator class states that: first test - proposed child must currently be an orphan So, I've commented this check and i can set one sub-community with several fathers. Im pretty sure that this modification is harmless, but, if this lines were in the code, they were there for a reason! Is it dangerous this change? Could this bring any side-effects? Marcelo Quoting George Kozak [EMAIL PROTECTED]: Hi... We are having a problem with people wanting to see the same Sub-Community (and it's collections) appear in 2 different Collections. For instance, currently I have a Sub-Community called Albert Mann Library. It appears in our Community Cornell University Library, but the people at Mann Library would also like their Library appearing in the hierarchy of College of Agriculture and Life Sciences. Can this be done? *** George Kozak Coordinator Web Development and Management Digital Media Group 501 Olin Library Cornell University 607-255-8924 *** [EMAIL PROTECTED] - This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2005. http://clk.atdmt.com/MRT/go/vse012070mrt/direct/01/ ___ DSpace-tech mailing list DSpace-tech@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/dspace-tech - This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2005. http://clk.atdmt.com/MRT/go/vse012070mrt/direct/01/ ___ DSpace-tech mailing list DSpace-tech@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/dspace-tech - This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2005. http://clk.atdmt.com/MRT/go/vse012070mrt/direct/01/ ___ DSpace-tech mailing list DSpace-tech@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/dspace-tech
Re: [Dspace-tech] Having A Sub-Community Collection appear in 2 Communities?
Hello, Yes, in fact, the delete issue is the most important. Let me explain what happens in my case. Lets suppose this Communities example: - Books (community) =Comedy (sub-community) Magazines (community) =Sport (sub-community) =Comedy (sub-community) - If i try to delete Books or Magazines entire community I get a PSQLException, which makes sense, because of the foreign key constraint. But, when deleting only Comedy-Magazines, will cause the deletion of Comedy, but in Books category. So, only removes the reference to the first father. Comedy still remains, but this time like this: - Books (community) Magazines (community) =Sport (sub-community) =Comedy (sub-community) - When deleting for Comedy for the second time, since there is no other father, the delete is successfully made. So, i would not advise this little hack unless anyone is using stable communities with very little changes in its structure. But any comments and opinions would be appreciated! Marcelo Quoting Richard Rodgers [EMAIL PROTECTED]: Hi Marcelo: The sub-community functionality was designed as a single-parent model. I'd need to study the code/DB schema to see what potential problems there may be, but one question springs to mind immediately: What behavior do you want when (one of) the parents is deleted? Normally DSpace deletes everything below a community (sub-communities, collections, etc) I assume you would want any sub-community that has more than one parent to *not* be deleted. Is this true with your modified code? Thanks, Richard R On Fri, 2007-07-20 at 22:45 +0100, [EMAIL PROTECTED] wrote: Hi! I have the some problem. I would like to see the same sub-community inside several Communities. This means that one sub-community should have more than one father. The CommunityFilliator class states that: first test - proposed child must currently be an orphan So, I've commented this check and i can set one sub-community with several fathers. Im pretty sure that this modification is harmless, but, if this lines were in the code, they were there for a reason! Is it dangerous this change? Could this bring any side-effects? Marcelo Quoting George Kozak [EMAIL PROTECTED]: Hi... We are having a problem with people wanting to see the same Sub-Community (and it's collections) appear in 2 different Collections. For instance, currently I have a Sub-Community called Albert Mann Library. It appears in our Community Cornell University Library, but the people at Mann Library would also like their Library appearing in the hierarchy of College of Agriculture and Life Sciences. Can this be done? *** George Kozak Coordinator Web Development and Management Digital Media Group 501 Olin Library Cornell University 607-255-8924 *** [EMAIL PROTECTED] - This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2005. http://clk.atdmt.com/MRT/go/vse012070mrt/direct/01/[1] ___ DSpace-tech mailing list DSpace-tech@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/dspace-tech[2] - This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2005. http://clk.atdmt.com/MRT/go/vse012070mrt/direct/01/[3] ___ DSpace-tech mailing list DSpace-tech@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/dspace-tech[4] Links: -- [1] http://clk.atdmt.com/MRT/go/vse012070mrt/direct/01/ [2] https://lists.sourceforge.net/lists/listinfo/dspace-tech [3] http://clk.atdmt.com/MRT/go/vse012070mrt/direct/01/ [4] https://lists.sourceforge.net/lists/listinfo/dspace-tech - This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2005. http://clk.atdmt.com/MRT/go/vse012070mrt/direct/01/___ DSpace-tech mailing list DSpace-tech@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/dspace-tech
