Add warning when user tried to create model with pluralize name.

  1. Generate model with correct_name.
  2. It will help new users to avoid mistakes when tried to create model with wrong name.

1 files changed, 26 insertions, 0 deletions

diff --git a/railties/lib/rails/generators/model_helpers.rb b/railties/lib/rails/generators/model_helpers.rb
new file mode 100644
index 0000000000..1309446995
--- /dev/null
+++ b/railties/lib/rails/generators/model_helpers.rb
@@ -0,0 +1,26 @@
+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