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Re: Classcastexception _EOCheapMutableArray
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Re: Classcastexception _EOCheapMutableArray


  • Subject: Re: Classcastexception _EOCheapMutableArray
  • From: Don Lindsay <email@hidden>
  • Date: Sun, 9 Dec 2007 03:44:26 -0500

Hello;

Agents is a single row.  mgtOfc is a relationship key.  Even when I do:

sourceObject:  agent
sourceEntityName: "agents"
relationshipKey: "mgtOfc"
destinationDisplayKey = "orgs.name"

The listbox does not show on the screen when the screen is rendered in the application.

Sorry for being so dense.

Don

On Dec 8, 2007, at 10:29 PM, Lachlan Deck wrote:

On 09/12/2007, at 12:16 PM, Don Lindsay wrote:

I want to use a WOToManyRelationship control.

I put in the following
datasource:
sourceObject: 		agents
sourceEntityName: 	"Agents"
relationshipkey: 		"mgtOfc"

sourceObject should be bound to a key that returns an EOEnterpriseObject not an array of objects.


is "mgt0fc" a toMany relationship?

When I do this the wo relationship does not even display in the form.

I put in the following
datasource:
sourceObject:		agents.mgtOfc

Again, if "agents" is an array, then agents.mgtOfc is going to return an array containing the results of performing mgt0fc on each agent in agents. If agents is badly named and does indeed return an EOEnterpriseObject (and not one within an array) then agents.mgt0fc looks like it would be an array rather than a single object.


You should have something like:
sourceObject = myAgent;
sourceEntityName = "Agent";
relationshipKey = managedOrgAssociations;
destinationDisplayKey = "organization.name";

Check out the api for WOJExtensions:
developer.apple.com/documentation/WebObjects/Reference/ WOJExtensions/index.html


with regards,
--

Lachlan Deck



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  • Follow-Ups:
    • Re: Classcastexception _EOCheapMutableArray
      • From: Lachlan Deck <email@hidden>
References: 
 >Classcastexception _EOCheapMutableArray (From: Don Lindsay <email@hidden>)
 >Re: Classcastexception _EOCheapMutableArray (From: Chuck Hill <email@hidden>)
 >Re: Classcastexception _EOCheapMutableArray (From: Don Lindsay <email@hidden>)
 >Re: Classcastexception _EOCheapMutableArray (From: Don Lindsay <email@hidden>)
 >Re: Classcastexception _EOCheapMutableArray (From: Don Lindsay <email@hidden>)
 >Re: Classcastexception _EOCheapMutableArray (From: Lachlan Deck <email@hidden>)

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