How do I make Active Admin show code DRY across models? - activeadmin

Question

I have a number of models within Active Admin that have very similar (but not exactly the same) show pages along the lines of:
show do |ad|
attributes_table do
row :name
row :length
row :width
row :height
...
end
panel "Images" do
text_node link_to 'Add Image', new_admin_image_path(...)
table_for ad.images do
column "Image" do |image|
image_tag(...)
end
column do |data|
link_to :edit, edit_admin_image_path(...)
end
column do |data|
link_to :delete, admin_image_path(data), method: :delete
end
end
end
end
The 'panel "Images" do' code will be duplicated exactly within each model, so I'd like to put it somewhere else. I've been going down the ViewHelper and render partial paths, but in both cases I end up with something that doesn't know what "panel", "text_node", "table_for", etc. is. Guidance as to what is the right way to do this?

Answer 1

Arbre, the template language ActiveAdmin uses, does support partials. You can
move the duplicated code into an arb partial such as
app/views/admin/_images_panel.html.arb. Then your ActiveAdmin resources
can simply call render with the partial path and any needed local
variables.
show do
attributes_table do
# ...
end
render 'admin/images_panel', data: data
end
The partial may also reference the generic method resource to eliminate
the need to pass in local variables. Resource is whatever resource the
admin is managing. For example:
panel "Images" do
table_for resource.images do
# Note use of `resource` instead of `ad` above.
# ...
end
end