Auto-generate link field in InlineCRUD when LiveResource is provided

[dorianamouroux]

Hi! 👋

I've been using Backpex and loving it so far. I have a small feature suggestion that would make working with InlineCRUD a bit smoother.

Problem

Currently, linking to a resource from Backpex.Fields.InlineCRUD requires manually creating a custom link field with routing logic:

books: %{
  module: Backpex.Fields.InlineCRUD,
  type: :assoc,
  child_fields: [
    id: %{
      module: LinkTo,  # Custom field
      label: "View",
      only: [:show],
      href: fn assigns ->
        Router.get_path(assigns.socket, Book, %{}, :show, assigns.item)
      end
    }
  ]
}

Proposed Solution

Add a live_resource option to InlineCRUD (similar to BelongsTo). When provided, automatically generate a link field:

product_options: %{
  module: Backpex.Fields.InlineCRUD,
  type: :assoc,
  live_resource: LibraryWeb.Live.Admin.Book,
  child_fields: [
    # ... other fields ...
  ]
}

So in a resource A (let's say Author) we can have an InlineCRUD to easily add another resource (e.g. books). But we also want a resource definition for the Book to add extra details we don't want in the InlineCrud field.

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If this sounds like a good addition, I'd be happy to take on implementing this feature! Let me know what you think. 🙂

[Flo0807]

Hey, thanks for your suggestion! I've addressed this in #1856