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Re: opposite method to objectMatchingKeyAndValue
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Re: opposite method to objectMatchingKeyAndValue


  • Subject: Re: opposite method to objectMatchingKeyAndValue
  • From: sharpy <email@hidden>
  • Date: Sat, 21 Feb 2009 07:08:35 +1000

Hi Gus,

I would suggest using a combination of a uniqueness constraint in the database the "validateUniquenessOf" feature in Wonder's ERXEOControlUtilities or something similar..

Sharpy


On 21/02/2009, at 3:40 AM, Gustavo Pizano wrote:

Hello all.
Well I want to insert a EObject into the database, I found that the objectMatchingKeyAndValue will return me the object with the given parameters, and if not found will throw and EOObjectNotAvailableException.
Now, I need to insert the new objects, but I need to be sure that they don't exist in the database, the entity has a attribute called code, which is not the primary key, so I was thinking in using the following.


try{
Product p = (Product )EOUtilities .objectMatchingKeyAndValue (editingContext(),"Product",Product.CODE_KEY, code);
}catch (EOObjectNotAvailableException e){


 //insert the new object into the EC, and save it

}

the problem i see, is that if the object in fact exists, I must alert the user that this particular product exist already, so Im feeling doing the things in the wrong way, I was thinking in putting a throw exception before the catch and with that alert the user... but i dunno i feel kinda weird doing this...



Suggestions??


Thanks

Gus




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