Module: StatefulLink::ActionAnyOf::InstanceMethods

Defined in:
lib/stateful_link/action_any_of.rb

Instance Method Summary collapse

Instance Method Details

#action_any_of?(*actions) ⇒ Boolean

Returns true if current controller and action names equals to any of passed. Asterik as action name matches all controller’s action.

Examples:

<%= "we are in PostsController::index" if action_any_of?("posts#index") %>

<%= "we are not in PostsController::index" unless action_any_of?("posts#index") %>

<% if action_any_of?("posts#index", "messages#index") %>
  we are in PostsController or in MessagesController
<% end %>

Returns:

  • (Boolean) 


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# File 'lib/stateful_link/action_any_of.rb', line 22

def action_any_of?(*actions)
  actions.any? do |sub_ca|
    if sub_ca.present?
      sub_controller, sub_action = extract_controller_and_action(sub_ca)
      ((self.controller_path == sub_controller) || (sub_controller.blank?)) && (self.action_name == sub_action || (sub_action == '' || sub_action == '*'))
    end
  end
end

#action_state(active, chosen = nil) ⇒ Object

Returns link state related to current controller and action: :inactive, :active or :chosen. A list of active actions is the first argument, chosen actions are the second argument.

Examples:

# :active for PostsController::index, :chosen for PostsController::* (except :index), 
# :inactive otherwise.
action_state("posts#index", "posts#")

# :active for PostsController::new and PostsController::create, :inactive otherwise.
action_state(["posts#new", "posts#create"])

# :active for PostsController::index, :chosen for MessagesController::* and
# PostsController::* (except :index), :inactive otherwise.
action_state("posts#index", ["posts#", "messages#"])



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# File 'lib/stateful_link/action_any_of.rb', line 65

def action_state(active, chosen = nil)
  active = active.is_a?(String) ? [active] : active
  chosen = chosen.is_a?(String) ? [chosen] : chosen

  if action_any_of?(*active)
    :active
  elsif !chosen.nil? && action_any_of?(*chosen) 
    :chosen
  else
    :inactive    
  end
end

#extract_controller_and_action(ca) ⇒ Object

Extracts controller and action names from a string.

Examples:

extract_controller_and_action("posts#index")       # ["posts", "index"]
extract_controller_and_action("admin/posts#index") # ["admin/posts", "index"]
extract_controller_and_action("admin/posts#index") # raises ArgumentError

Raises:

  • (ArgumentError) 


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# File 'lib/stateful_link/action_any_of.rb', line 39

def extract_controller_and_action(ca)
  raise ArgumentError, "Pass the string" if ca.nil?
  slash_pos = ca.rindex('#')
  raise ArgumentError, "Invalid action: #{ca}" if slash_pos.nil?
  controller = ca[0, slash_pos]
  action = ca[slash_pos+1..-1] || ""
  raise ArgumentError, "Invalid action or controller" if action.nil?

  [controller, action]
end