ruby-rails-extensions.rb in ruby-rails-extensions-2.1.0.pre.rc.9

- old
+ new

@@ -109,17 +109,19 @@
       def flag_name(gem_base)
         self.class.flag_name(gem_base)
       end
   end
 
+  module_function
+
   # @return [Configuration]
-  def self.configuration
+  def configuration
     @configuration ||= Configuration.new
   end
 
   # @yield [Configuration]
-  def self.configure
+  def configure
     yield(configuration)
 
     Configuration::BOOLEAN_GEMS.each do |extension|
       next unless configuration.public_send(:"#{extension}?")
 
@@ -130,7 +132,32 @@
   # @return [Array<Symbol>]
   def configuration_flags
     configuration.flags
   end
 
-  module_function :configuration_flags
+  # @see Object#presence from active_support/core_ext/object/blank.rb
+  def presence(*items)
+    items.each do |item|
+      return item if present?(item)
+    end
+
+    nil
+  end
+
+  # @see Object#blank? from active_support/core_ext/object/blank.rb
+  def blank?(item)
+    if item.respond_to?(:blank?)
+      return item.blank?
+    end
+
+    item.respond_to?(:empty?) ? !!item.empty? : !item
+  end
+
+  # @see Object#present? from active_support/core_ext/object/blank.rb
+  def present?(item)
+    if item.respond_to?(:present?)
+      return item.present?
+    end
+
+    !blank?(item)
+  end
 end