When I create A will it have a B set in the to-one?

Ricardo

> On Jan 13, 2019, at 12:35 PM, Johann Werner <johann.wer...@posteo.de> wrote:
> 
> Hi Ricardo,
> 
> don’t fight the system ;-)
> 
> When you have your to-one relationship A -> B with key propagation just 
> create an instance of A and you automatically have a B in place when you 
> check the relationship A.toB(). You just have to (re)use the present B 
> instead of creating and connecting your own B.
> 
> jw
> 
> 
>> Am 13.01.2019 um 13:07 schrieb Ricardo Parada <rpar...@mac.com>:
>> 
>> Hi Johann,
>> 
>> My workaround is to model the relationship as a to-many propagating the 
>> primary key.   It’s less elegant but at least it works. 
>> 
>> Thanks 
>> Ricardo
>> 
>>> On Jan 13, 2019, at 7:02 AM, Johann Werner <johann.wer...@posteo.de> wrote:
>>> 
>>> Hi Ricardo,
>>> 
>>> when using pk propagation I vaguely remember that EOF is automatically 
>>> creating an instance of the dependent entity. Thus when you create a second 
>>> object B and set the relationship to A the auto created object is left 
>>> without connection.
>>> 
>>> jw
>>> 
>>>> Am 13.01.2019 um 12:44 schrieb Ricardo Parada <rpar...@mac.com>:
>>>> 
>>>> Hi all,
>>>> 
>>>> I have an entity A with a to-one relationship to entity B. 
>>>> 
>>>> The relationship is setup in eomodeler to propagate it’s primary key from 
>>>> A to B. 
>>>> 
>>>> I then create A and B, insert into editing context and set the to-one 
>>>> relationship in A to point to B. When I save changes EOF is trying to 
>>>> insert TWO instances of B. The second instance of B has NULL in all its 
>>>> properties:
>>>> 
>>>> INSERT INTO HOSTING_COMPANY(CUSTOMER_ID, name) VALUES (?, ?)" 
>>>> withBindings: 1:20462(customerID), 2:"test"(name)>
>>>> 
>>>> INSERT INTO HOSTING_COMPANY(CUSTOMER_ID, name) VALUES (NULL, NULL)
>>>> 
>>>> 
>>>> Is this a know bug? I am using a very old version of Wonder. 
>>>> 
>>>> The relationship is also set up to own the destination and Cascade on 
>>>> Delete. 
>>>> 
>>>> Thanks in advance for any help. 
>>>> 
>>>> Ricardo
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>> 
> 

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