将对象传递给辅助方法

Question

I'm using rails 3.2.11 and trying to pass an object into a custom helper from a view and I don't understand why this works:

- @data = { name: "Add Skus", f: f, container: "skus", association: :skus, child_association: :images, options: @sku_options }
= link_to_add_fields @data

but this doesn't:

= link_to_add_fields { name: "Add Skus", f: f, container: "skus", association: :skus, child_association: :images, options: @sku_options }

I get the error: syntax error, unexpected ':', expecting '}'

Helper method:

def link_to_add_fields(data)
  STDOUT << "name: " + data[:name].to_s + " :: "
  STDOUT << "f.object: " + data[:f].object.to_s + " :: "
  STDOUT << "association: " + data[:association].to_s + " :: "
  STDOUT << "container: " + data[:container].to_s + " :: "

  if data[:child_association]
    STDOUT << "child_association: " + data[:child_association].to_s + " :: "
  end
end

Answer 1

In your second example, Ruby thinks you're passing in a block as a parameter due to the braces. Add parentheses around your options, or get rid of the braces:

= link_to_add_fields({name: "Add Skus", f: f, container: "skus", association: :skus, child_association: :images, options: @sku_options})

or

= link_to_add_fields name: "Add Skus", f: f, container: "skus", association: :skus, child_association: :images, options: @sku_options