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Re: Array of Objects to Array of Global IDs ?
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Re: Array of Objects to Array of Global IDs ?


  • Subject: Re: Array of Objects to Array of Global IDs ?
  • From: James Cicenia <email@hidden>
  • Date: Tue, 6 Nov 2007 07:24:51 -0600

The problem would be then to parse back the qualifiers...

When the user selects a saved query, they want to see it when they restore it. So I have to repopulate all the query fields. Plus some of these D2W custom query components I wrote to a bunch of many-to- many searches with subqueries, etc.

Now I had previously stored the binding dicts etc, in the database and that worked fine. These custom query components are much more complicated so I figured this was the best way.

I finished the storing of all the queries last night,,, now I have to bring them back.. if it works it should do the job.

James


On Nov 5, 2007, at 9:23 PM, Ken Anderson wrote:

James,

When doing something similar a while ago, I found that trying to persist saved queries into the database was more trouble than its worth. What I ended up doing was saving them to the file system, and doing something similar to what you're trying - stored the global ID. The nice thing is though, you can persist a hierarchical structure of EOQualifiers into a file much more easily than a table structure.

A good compromise would be to persist the eo qualifiers as text, then store THAT in a single blob in the database. You'd also gain the ability to version your structures, so that you could handle loading old queries, etc.

Ken

On Nov 5, 2007, at 8:22 PM, James Cicenia wrote:

Well I have a query and reporting system. The user can select multiple eos from a list, etc., a query is then created, but now I have to store the query into a database. So.. don't I need to store the users eo selection via the global ids?

I realize I could model the reports differently but I have been saving all the queries in a archivable mutable array or dict. These new custom query components need to be saved too, so I figure the global ids and the dictionaries to keep in consistent.

James

On Nov 5, 2007, at 6:57 PM, Owen McKerrow wrote:

Hi James

I think you'll find you don't need to touch the global ID's at all. Yes there is a way you could extract them, but I wasn't going to tell you until we'd determined that you really really need to do it. However Chuck explained how :D
Can you explain what exactly it is you are trying to do. Such as how is the list of object being selected in the first place ? What are the objects ? Im assuming they are EO's ?



Owen McKerrow WebMaster, emlab Ph : +61 02 4221 5517 http://emlab.uow.edu.au

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On 06/11/2007, at 11:49 AM, James Cicenia wrote:

Hello -

I need to save selection of objects in my database. In order for me to do that
do I have to first extract their global ids and then store those?


If so is there a magic one line of WebObjects code that gives me the ids?

Thanks
James Cicenia

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References: 
 >Array of Objects to Array of Global IDs ? (From: James Cicenia <email@hidden>)
 >Re: Array of Objects to Array of Global IDs ? (From: Owen McKerrow <email@hidden>)
 >Re: Array of Objects to Array of Global IDs ? (From: James Cicenia <email@hidden>)
 >Re: Array of Objects to Array of Global IDs ? (From: Ken Anderson <email@hidden>)

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