It is operation not specifying the parent parent model when new child model is registered. You can select parent later if necessary .
We will take on two models of "customer" and "support".
In this case, you can pass the parent's primary key to the new screen of the child.(FIGS. 1 and 2)
However, in the support new registration screen, you can change the parent's primary key.
On the support search screen, press the "Register screen" button.
On the support new registration screen, you can register parent's primary key as unset.
On the support maintenance screen, you can set the parent's primary key.I will associate with my parent for the first time here.
Change the type of the foreign key included in the child model (support model) to "item reference of other models".
The input type is "search screen".Here, the primary key of the parent model is specified in the referenced model item.
Items other than the primary key of the parent model can also be used when displaying the screen.Here we will display the "Name" item.
In Fig. 8, the referenced model item is an arbitrary item of the parent model.Here the name item is specified.
You can also select the primary key of the parent model and display other items using reference linkage.Here we will display the "Name" item.
Add items for reference interlocking.