fix: namespace and using string for lazy evaluate

lib/rating/config.rb

@@ -12,8 +12,8 @@ module Rating
     end
 
     def initialize
-      @rate_model   = ::Rating::Rate
-      @rating_model = ::Rating::Rating
+      @rate_model   = '::Rating::Rate'
+      @rating_model = '::Rating::Rating'
     end
   end
 end

lib/rating/models/rating/rate.rb

@@ -2,7 +2,8 @@
 
 module Rating
   class Rate < ActiveRecord::Base
-    self.table_name = 'rating_rates'
+    self.table_name_prefix = 'rating_'
+    self.table_name        = ::Rating.config.rate_model.constantize.table_name
 
     after_save :update_rating
 

lib/rating/models/rating/rating.rb

@@ -2,7 +2,8 @@
 
 module Rating
   class Rating < ActiveRecord::Base
-    self.table_name = ::Rating.config.rating_model
+    self.table_name_prefix = 'rating_'
+    self.table_name        = ::Rating.config.rating_model.constantize.table_name
 
     belongs_to :resource,  polymorphic: true
     belongs_to :scopeable, polymorphic: true
@@ -107,7 +108,7 @@ module Rating
       end
 
       def rate_table_name
-        @rate_table_name ||= ::Rating.config.rate_model
+        @rate_table_name ||= ::Rating.config.rate_model.constantize.table_name
       end
 
       def scope_type_query(scopeable)

spec/config/initialize_spec.rb

@@ -4,7 +4,7 @@ require 'rails_helper'
 
 RSpec.describe Rating::Config, 'initialize' do
   it 'has default models' do
-    expect(subject.rate_model).to   eq ::Rating::Rate
-    expect(subject.rating_model).to eq ::Rating::Rating
+    expect(subject.rate_model).to   eq '::Rating::Rate'
+    expect(subject.rating_model).to eq '::Rating::Rating'
   end
 end