Re: Return single row?
Re: Return single row?
- Subject: Re: Return single row?
- From: Bob Stuart <email@hidden>
- Date: Wed, 3 Dec 2003 21:49:05 -0500
Drew,
Take a look at
EOUtilities. objectWithFetchSpecificationAndBindings
Given an EO named Book with a fetch spec in the model named SingleBookQuery that takes no parameters and returns only 1 row
Book aBook = (Book)EOUtilities.objectWithFetchSpecificationAndBindings( ec, "Book", "SingleBookQuery", null);
If there was another fetch spec in the model that took a string parameter such as ISBN that for any given ISBN should only return 1 book
NSDictionary bindings = new NSDictionary("12345", "ISBN");
Book aBook = (Book)EOUtilities.objectWithFetchSpecificationAndBindings( ec, "Book", "SingleBookQuery", bindings);
If the fetch spec of either of these returns more than 1 row an exception will be raised.
At 8:56 PM -0500 12/3/03, Drew Thoeni wrote:
>A newbie question:
>
>I have been through several of the tutorials/books recommended by the list (thanks for the tips) and have not found an example of using a fetchSpec to return a single row *and* then put that returned row into an object that can be tied to WOString fields (or other fields) for display.
>
>I am able to return lists and place them into a WORepetition and the data displays nicely. It's a single row I'm having difficulty with.
>
>Can someone point to an example of this?
>
>Regards,
>
>Drew
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--
Bob Stuart
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