Master / Detail

[blondie63]

Using Backpack is there a way to create a crud where i've a main model and child one?
For example Orders and OrderRows:

Like BKP demo, i'd like to click on "+" and see all order rows :)

Thanks for help

[karandatwani92]

@blondie63
Yes, you can.
How? It depends on your need.

Examples:
Let's assume you want to show child attributes. You can do this using a field/column which supports relationships.
Let's assume you want to create/update parent and child from the same form.
Again you would be using a field/column that supports the relationship.
And for such fields which don't support relationships, you can use $this->crud->getCurrentEntry(); and set the field value.
And to alter the saving process, you can override store & update method.

For the detail row, the doc link is here https://backpackforlaravel.com/docs/6.x/crud-api#details-row

[tabacitu]

@karandatwani92 let's stop recommending people override their store() and update() methods. Using model events you can achieve 99% of the same things, without overriding operation logic. So it's most of the benefits with none of the downsides (people still get updates when we bugfix the operations).

Plus, creating events in your field definitions is so super-intuitive - https://backpackforlaravel.com/docs/6.x/crud-operation-create#use-events-in-your-field-definition

[tabacitu]

@blondie63 like Karan said, you can completely customize what's inside the detail row. See the docs here - https://backpackforlaravel.com/docs/6.x/crud-api#details-row

In addition to that, I'd suggest you take a look at https://backpackforlaravel.com/docs/6.x/crud-how-to#hasmany-1-n-relationship-with-subform-to-create-update-and-delet-1 because what you have there is a HasMany, so your Create and Update forms could look like this:

Hope it helps.

[blondie63]

Hi @tabacitu this view is good for an inline edit but really i'd like to have only a list page whit grid and nested grid, like this:

Do you is it possible with BKP6 ?

[tabacitu]

I think you can go 80-90% of the way there with the details row, yes.

If that doesn't suit you, you can always create a custom operation that fits your needs perfectly - https://backpackforlaravel.com/docs/6.x/crud-operations#creating-a-custom-operation-1

It doesn't have to be general, since it's just for your project.