railties/lib/rails/generators/model_helpers.rb


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require 'rails/generators/active_model'

module Rails
  module Generators
    module ModelHelpers # :nodoc:
      PLURAL_MODEL_NAME_WARN_MESSAGE = 'Plural version of the model detected, using singularized version. Override with --force-plural or setup custom inflection rules for this noun before running the generator.'
      mattr_accessor :skip_warn

      def self.included(base) #:nodoc:
        base.class_option :force_plural, type: :boolean, default: false, desc: 'Forces the use of a plural model name'
      end

      def initialize(args, *_options)
        super
        if name == name.pluralize && name.singularize != name.pluralize && !options[:force_plural]
          unless ModelHelpers.skip_warn
            say PLURAL_MODEL_NAME_WARN_MESSAGE
            ModelHelpers.skip_warn = true
          end
          name.replace name.singularize
          assign_names!(name)
        end
      end
    end
  end
end