Module: Viewaide::Helpers::MessageHelper

Included in:
Viewaide::Helpers
Defined in:
lib/viewaide/helpers/message_helper.rb

Instance Method Summary collapse

Instance Method Details

#messages(messages, options = {}) ⇒ String

Generates paragraphs, each containing the values of the hash passed

Examples:

<%= messages(:notice => "Your record was saved") %>
generates
<p class="notice box single-line">Your record was saved</p>

<%= messages(:notice => "Your record was saved", :error => "Something happened!") %>
generates
<p class="notice box single-line">Your record was saved</p>
<p class="error box single-line">Something happened!</p>

Parameters:

  • messages (Hash) —

    a hash (#flash, especially) that will render the values in separate paragraphs

Returns:

  • (String) 


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# File 'lib/viewaide/helpers/message_helper.rb', line 17

def messages(messages, options = {})
  except_keys = [options[:except]].flatten.compact
  only_keys   = [options[:only]].flatten.compact
  all_keys    = messages.keys

  if except_keys.any? && only_keys.any?
    raise ArgumentError, ":only and :except options conflict; use one"
  end

  keys = if except_keys.any?
    all_keys - except_keys
  elsif only_keys.any?
    all_keys & only_keys
  else
    all_keys
  end

  keys.map do |key|
    if messages[key].present?
      content_tag :p, messages[key],
                  :class => [key, "single-line"].join(" ")
    end
  end.join
end