Fixes to index options

lib/mongoid_monkey.rb

@@ -3,6 +3,7 @@
 require 'patches/atomic'
 require 'patches/big_decimal'
 require 'patches/db_commands'
+require 'patches/index_options'
 require 'patches/instrument'
 require 'patches/reorder'
 require 'patches/only_pluck_localized'

lib/patches/index_options.rb

@@ -1,12 +1,9 @@
-# Backport Mongoid 4 :touch option for #embedded_in to Mongoid 3.
+# Backport Mongoid 6 index options to Mongoid 3 and 4.
 
 if Mongoid::VERSION =~ /\A3\./
 
-module Mongoid
-module Indexes
-module Validators
-
-  module Options
+  ::Mongoid::Indexes::Validators::Options.send(:remove_const, :VALID_OPTIONS)
+  module Mongoid::Indexes::Validators::Options
     VALID_OPTIONS = [
         :background,
         :database,
@@ -30,17 +27,11 @@ module Options
         :collation
     ]
   end
-end
-end
-end
 
 elsif Mongoid::VERSION =~ /\A4\./
 
-module Mongoid
-module Indexable
-module Validators
-
-  module Options
+  ::Mongoid::Indexable::Validators::Options.send(:remove_const, :VALID_OPTIONS)
+  module Mongoid::Indexable::Validators::Options
     VALID_OPTIONS = [
         :background,
         :database,
@@ -65,7 +56,3 @@ module Options
     ]
   end
 end
-end
-end
-
-end

spec/unit/index_options_spec.rb

@@ -0,0 +1,31 @@
+require "spec_helper"
+
+if Mongoid::VERSION =~ /\A[34]\./
+
+  describe 'Index Valid Options' do
+    let(:mod){ Mongoid::VERSION =~ /\A3\./ ? Mongoid::Indexes::Validators : Mongoid::Indexable::Validators }
+    let(:exp) do
+      [ :background,
+        :database,
+        :default_language,
+        :language_override,
+        :drop_dups,
+        :name,
+        :sparse,
+        :unique,
+        :max,
+        :min,
+        :bits,
+        :bucket_size,
+        :expire_after_seconds,
+        :weights,
+        :storage_engine,
+        :sphere_version,
+        :text_version,
+        :version,
+        :partial_filter_expression,
+        :collation ]
+    end
+    it { expect(mod::Options::VALID_OPTIONS).to eq(exp) }
+  end
+end