Re: GDL2 How-To

[Dirk Lattermann]

On 2003-08-26 17:18:39 +0200 S.J.Chun <chunsj@embian.com> wrote:

> Can I find any simple example code for this ?
  >
>    Actually, I currently make the models programmatically and save 
> them

Hello,

this is from a EOModel "tutorial" I started to write some time ago, it 
should illustrate creating a model programmatically and writing it to 
disk, then fetch some records.

Note the use of the model group and installing it as the "default 
model group" that is searched when the
editing context first receives a fetch call. Normally, the default 
model group looks for all model files in all bundle locations to find 
the entity. [[EOModelGroup defaultGroup] addModel: myModel] doesn't 
seem to work.

I'm not too sure about all the RELEASEs, but it should give an idea.

I'm also unsure about the right join for the to-many relationship. 
Intuitively, as it is the reverse of a left join, it should be a right 
join, but the objects which start the join (departments) are already 
there, so what's the difference to an inner join??

Greetings, Dirk<model.tar.gz>

model.tar.gz
Description: GNU Zip compressed data