Bad interaction between tags and a collection that follows

[hbaragar]

I want the <new-link> for a child collection to precede the collection on the <show-page> of the parent. However, this has the effect of creating two "empty" cards and suppressing the <empty-message> and <else> tags.

To recreate the problem:

• Create a new hobo application
• Create the parent and child resources:

    hobo g resource Parent name hm:children
    hobo g resource Child name bt:parent
    hobo g migrate

• Add a children :children directive to the parent model
• Add an auto_actions_for :parent, [:new, :create] directive to the child controller
• Add a app/views/parents/show.dryml file with the following contents:

    <show-page>
      <before-collection:>
         <a:children action="new" if="&can_create?(@parent.children)" param="new-link">
            <ht key="child.actions.new" count="1">
              New Child
            </ht>
         </a:children>
      </before-collection:>
    </show-page>

• rails s, create a parent record and see the two "empty" cards on the parent show page.

Note that using <after-collection-heading:> exhibits the same problem. I don't know of any work-arounds.

I have found that the action="new" and if="&can_create?(@parent.children)" param="new-link" attributes each cause one of the "blank" cards to be created.

[hbaragar]

I think this is related: if you add the following before the <a...>...</a>

        <unless:children>
          Empty Message
        </unless:children>

it prints out Empty Message when there are no records in the collection, but it does not when put after the <a...>...</a>.

[iox]

Thanks Henry for the nice bug description. I remember seeing something similar before, something to do with some instance variable being set and thus printing that extra card.

[iox]

I think this commit fixed this issue: https://github.com/Hobo/hobo/commit/bbc6e9b92ab42711e51f036a569acd5ef56da28d

I will close it for now. @hbaragar , feel free to reopen it if it's still happening!

Warm regards, Ignacio