Move model naming into ActiveModel

1 files changed, 25 insertions, 0 deletions

diff --git a/activemodel/lib/active_model/naming.rb b/activemodel/lib/active_model/naming.rb
new file mode 100644
index 0000000000..ffb44e3824
--- /dev/null
+++ b/activemodel/lib/active_model/naming.rb
@@ -0,0 +1,25 @@
+require 'active_support/inflector'
+
+module ActiveModel
+  class Name < String
+    attr_reader :singular, :plural, :element, :collection, :partial_path
+    alias_method :cache_key, :collection
+
+    def initialize(name)
+      super
+      @singular = ActiveSupport::Inflector.underscore(self).tr('/', '_').freeze
+      @plural = ActiveSupport::Inflector.pluralize(@singular).freeze
+      @element = ActiveSupport::Inflector.underscore(ActiveSupport::Inflector.demodulize(self)).freeze
+      @collection = ActiveSupport::Inflector.tableize(self).freeze
+      @partial_path = "#{@collection}/#{@element}".freeze
+    end
+  end
+
+  module Naming
+    # Returns an ActiveModel::Name object for module. It can be
+    # used to retrieve all kinds of naming-related information.
+    def model_name
+      @_model_name ||= ActiveModel::Name.new(name)
+    end
+  end
+end