Can ERB be used in form.yml?

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1

I’m developing an interactive application and would like to include a select list in the form.yml. However, instead of hardcoding the options in the dropdown, I would like them to be dynamically generated from a system command. Here is what I have tried (which does not work):

  project_group:
    label: "Project group"
    widget: "select"
    options:
    <%= `get_groups command`.split('\n').each do |group| %>
      - <%= group %>
    <% end %>

Is this sort of thing supported? If so, am I doing something wrong? My guess is that since form.yml is not referenced as ending in .erb, it is not rendered by the templating engine. Is that assumption correct?

Thanks,
Nick

2

Your assumption is correct. You need to rename form.yml to form.yml.erb in order for the erb to be executed.

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3

You can also use erb in submit.yml - rename it to submit.yml.erb. And any file in the template directory, if it has .erb appended to it, that will get rendered and then a new file added to the copied template with the same filename sans the .erb extension

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4

Thank you, this is great. I was already using submit.yml.erb, but I didn’t know that I could force ERB to render any file in the application folder just by adding the extension .erb. Everything is working as expected now.

Nick

5

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