Module: Trestle::Hook::Helpers

Included in:
Form::Renderer, Trestle::HookHelper
Defined in:
lib/trestle/hook/helpers.rb

Instance Method Summary collapse

Instance Method Details

#hook(name, *args, &block) ⇒ Object

Evaluates any defined hooks with the given name and returns the result.

Each hook is evaluated and passed any provided arguments, and the result is concatenated together. If no hooks are defined, and a block is passed to this helper, then the block will be evaluated instead.

name - Name of hook to evaluate args - Arguments to pass to hook blocks block - Optional block to evaluate as a fallback if no hooks are defined

Examples

<%= hook("index.toolbar.primary", toolbar) %>

<%= hook("view.title") do %>
  Default Title
<% end %>

Returns a HTML-safe string.



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# File 'lib/trestle/hook/helpers.rb', line 23

def hook(name, *args, &block)
  hooks = hooks(name)

  if hooks.any?
    safe_join(hooks.map { |hook|
      hook.evaluate(self, *args)
    }, "\n")
  elsif block_given?
    capture(*args, &block)
  end
end

#hook?(name) ⇒ Boolean

Returns true or false depending on whether there are any defined hooks (either on the current admin or globally) with the given name.

Returns:

  • (Boolean) 


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# File 'lib/trestle/hook/helpers.rb', line 37

def hook?(name)
  hooks(name).any?
end