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Re: SELECT statement on relationship binding
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Re: SELECT statement on relationship binding


  • Subject: Re: SELECT statement on relationship binding
  • From: Mark Wardle <email@hidden>
  • Date: Sun, 23 Jan 2011 22:42:28 +0000

Remove the inverse relationship. 

Mark

-- 
Dr. Mark Wardle
Specialist registrar, Neurology
(Sent from my mobile)


On 23 Jan 2011, at 22:05, Tarun Reddy <email@hidden> wrote:

So I've got a situation where I'm seeing a SELECT that will eventually kill my performance and want to see if I can fix it before my site goes live.

My EOModel has an object called a Landing and an object called a SiteDefinition. The SiteDefinition defines what the site looks like and the Landing represents a user landing on the site. When a user comes to the site, I create a Landing and associate it with the SiteDefinition so that I can capture what site a user sees and what users were on a site.

SiteDefinition to many Landings

When I add the relationship using this:

aLanding.setSiteDefinitionRelationship(getSiteDefinition());


WebObjects decides it needs to select all Landings where the siteDefinitionID equals the one I'm assigning. This is fine in dev where I may only have 17 records but eventually I may have 10s of thousands of records.

Is this my EOModel, and if so how can I prevent it?

Thank you,
Tarun
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References: 
 >SELECT statement on relationship binding (From: Tarun Reddy <email@hidden>)

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