Module: RailsTables::ModelAdditions::ClassMethods

Defined in:
lib/rails-tables/model_additions.rb

Instance Method Summary collapse

Instance Method Details

#has_datatable(*args) ⇒ Object 



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# File 'lib/rails-tables/model_additions.rb', line 10

def has_datatable(*args)
  arguments = { }
  if args.present?
    if args.first.is_a? Hash
      arguments = args.pop
    else
      arguments[:name] = args.first if args.try(:first)
      arguments[:klass] = args.second if args.try(:second)
    end
  end
  name = arguments.fetch(:name, 'datatable').to_s
  klass = arguments.fetch(:klass, "#{self.name.pluralize.underscore}_datatable").to_s.camelize
  klass = klass.constantize

  cattr_accessor :datatables unless self.respond_to? :datatables
  self.datatables ||= {}

  # if self.has_datatable? name
  #   raise RailsTables::NameError,
  #     "#{self.name} already has a datatable with the name '#{name}'. "\
  #     "Please supply a :name parameter to has_datatable other than: #{self.datatables.keys.join(', ')}"
  # else
    self.datatables[name] = klass
    cattr_writer name
    self.send("#{name}=", klass.new(name, self))
    self.class.instance_eval do
      define_method name do
        self.class_variable_get("@@#{name}").set_root(self)
      end
    end
  # end
end

#has_datatable?(table_name = :datatable) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/rails-tables/model_additions.rb', line 43

def has_datatable?(table_name=:datatable)
  self.respond_to? :datatables and self.datatables.keys.include? table_name.to_s
end