redmine/lib/generators/redmine_plugin_model/templates/fixtures.yml

# Read about fixtures at http://ar.rubyonrails.org/classes/Fixtures.html
one:
  id: 1
<% for attribute in attributes -%>
  <%= attribute.name %>: <%= attribute.default %>
<% end -%>
two:
  id: 2
<% for attribute in attributes -%>
  <%= attribute.name %>: <%= attribute.default %>
<% end -%>