Module: Tanuki::ControllerBehavior::ClassMethods

Included in:
Tanuki::ControllerBehavior
Defined in:
lib/tanuki/behavior/controller_behavior.rb

Overview

Tanuki::ControllerBehavior mixed-in class methods.

Class Method Summary collapse

Instance Method Summary collapse

Class Method Details

.extended(mod) ⇒ Object

Prepares the extended module.



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# File 'lib/tanuki/behavior/controller_behavior.rb', line 262

def self.extended(mod)
  mod.instance_variable_set(:@_arg_defs, {})
end

Instance Method Details

#arg_defs ⇒ Object

Returns own or superclass argument definitions.



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# File 'lib/tanuki/behavior/controller_behavior.rb', line 229

def arg_defs
  @_arg_defs ||= superclass.arg_defs.dup
end

#escape(s, chrs) ⇒ Object

Escapes characters chrs and encodes a given string s for use in links.



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# File 'lib/tanuki/behavior/controller_behavior.rb', line 234

def escape(s, chrs)
  s ? Rack::Utils.escape(s.to_s.gsub(/[\$#{chrs}]/, '$\0')) : nil
end

#extract_args(md) ⇒ Object

Extracts arguments, initializing default values beforehand. Searches md hash for default value overrides.



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# File 'lib/tanuki/behavior/controller_behavior.rb', line 239

def extract_args(md)
  res = []
  arg_defs.each_pair do |name, arg|
    res[arg[:index]] = md[name]
  end
  res
end

#grow_link(ctrl, route_part, arg_defs) ⇒ Object

Builds link from controller ctrl to a given route.



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# File 'lib/tanuki/behavior/controller_behavior.rb', line 248

def grow_link(ctrl, route_part, arg_defs)
  own_link = escape(route_part[:route], '\/:') << route_part[:args].map do |k, v|
    arg_defs[k][:arg].default == v ? '' : ":#{escape(k, '\/:-')}-#{escape(v, '\/:')}"
  end.join
  "#{ctrl.link == '/' ? '' : ctrl.link}/#{own_link}"
end

#has_arg(name, obj, *args) ⇒ Object

Defines an argument with a name, derived from type obj with additional args.



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# File 'lib/tanuki/behavior/controller_behavior.rb', line 256

def has_arg(name, obj, *args)
  # TODO Ensure thread safety
  arg_defs[name] = {:arg => Argument.to_argument(obj, *args), :index => @_arg_defs.size}
end