fix: qualify Rails as ::Rails to avoid namespace clashes with other gems

lib/jsonapi-resources.rb

@@ -9,7 +9,7 @@
 require 'jsonapi/cached_response_fragment'
 require 'jsonapi/response_document'
 require 'jsonapi/acts_as_resource_controller'
-if Rails::VERSION::MAJOR >= 6
+if ::Rails::VERSION::MAJOR >= 6
   ActiveSupport.on_load(:action_controller_base) do
     require 'jsonapi/resource_controller'
   end

lib/jsonapi/active_relation/adapters/join_left_active_record_adapter.rb

@@ -7,7 +7,7 @@ module JoinLeftActiveRecordAdapter
         # example Post.joins(:comments).joins_left(comments: :author) will join the comments table twice,
         # once inner and once left in 5.2, but only as inner in earlier versions.
         def joins_left(*columns)
-          if Rails::VERSION::MAJOR >= 6 || (Rails::VERSION::MAJOR >= 5 && ActiveRecord::VERSION::MINOR >= 2)
+          if ::Rails::VERSION::MAJOR >= 6 || (::Rails::VERSION::MAJOR >= 5 && ActiveRecord::VERSION::MINOR >= 2)
             left_joins(columns)
           else
             join_dependency = ActiveRecord::Associations::JoinDependency.new(self, columns, [])
@@ -23,4 +23,4 @@ def joins_left(*columns)
       end
     end
   end
-end
+end

lib/jsonapi/active_relation_resource.rb

@@ -772,7 +772,7 @@ def apply_single_sort(records, field, direction, options)
 
       # Assumes ActiveRecord's counting. Override if you need a different counting method
       def count_records(records)
-        if (Rails::VERSION::MAJOR == 5 && ActiveRecord::VERSION::MINOR >= 1) || Rails::VERSION::MAJOR >= 6
+        if (::Rails::VERSION::MAJOR == 5 && ActiveRecord::VERSION::MINOR >= 1) || ::Rails::VERSION::MAJOR >= 6
           records.count(:all)
         else
           records.count

lib/jsonapi/acts_as_resource_controller.rb

@@ -160,7 +160,7 @@ def resource_serializer_klass
     end
 
     def base_url
-      @base_url ||= "#{request.protocol}#{request.host_with_port}#{Rails.application.config.relative_url_root}"
+      @base_url ||= "#{request.protocol}#{request.host_with_port}#{::Rails.application.config.relative_url_root}"
     end
 
     def resource_klass_name
@@ -286,7 +286,7 @@ def handle_exceptions(e)
             request.env['action_dispatch.exception'] ||= e
 
             internal_server_error = JSONAPI::Exceptions::InternalServerError.new(e)
-            Rails.logger.error { "Internal Server Error: #{e.message} #{e.backtrace.join("\n")}" }
+            ::Rails.logger.error { "Internal Server Error: #{e.message} #{e.backtrace.join("\n")}" }
             errors = internal_server_error.errors
           end
       end
@@ -298,7 +298,7 @@ def safe_run_callback(callback, error)
       begin
         callback.call(error)
       rescue => e
-        Rails.logger.error { "Error in error handling callback: #{e.message} #{e.backtrace.join("\n")}" }
+        ::Rails.logger.error { "Error in error handling callback: #{e.message} #{e.backtrace.join("\n")}" }
         internal_server_error = JSONAPI::Exceptions::InternalServerError.new(e)
         return JSONAPI::ErrorsOperationResult.new(internal_server_error.errors[0].code, internal_server_error.errors)
       end
@@ -324,7 +324,7 @@ def on_server_error(*args, &callback_block)
             if self.respond_to? method
               send(method, error)
             else
-              Rails.logger.warn("#{method} not defined on #{self}, skipping error callback")
+              ::Rails.logger.warn("#{method} not defined on #{self}, skipping error callback")
             end
           end
         end.compact

lib/jsonapi/configuration.rb

@@ -86,11 +86,11 @@ def initialize
 
       # Whether or not to include exception backtraces in JSONAPI error
       # responses.  Defaults to `false` in anything other than development or test.
-      self.include_backtraces_in_errors = (Rails.env.development? || Rails.env.test?)
+      self.include_backtraces_in_errors = (::Rails.env.development? || ::Rails.env.test?)
 
       # Whether or not to include exception application backtraces in JSONAPI error
       # responses.  Defaults to `false` in anything other than development or test.
-      self.include_application_backtraces_in_errors = (Rails.env.development? || Rails.env.test?)
+      self.include_application_backtraces_in_errors = (::Rails.env.development? || ::Rails.env.test?)
 
       # List of classes that should not be rescued by the operations processor.
       # For example, if you use Pundit for authorization, you might

lib/jsonapi/exceptions.rb

@@ -54,7 +54,7 @@ def errors
         if JSONAPI.configuration.include_application_backtraces_in_errors
           meta ||= Hash.new
           meta[:exception] ||= exception.message
-          meta[:application_backtrace] = exception.backtrace.select{|line| line =~ /#{Rails.root}/}
+          meta[:application_backtrace] = exception.backtrace.select{|line| line =~ /#{::Rails.root}/}
         end
 
         [create_error_object(code: JSONAPI::INTERNAL_SERVER_ERROR,

lib/jsonapi/resources/railtie.rb

@@ -1,9 +1,9 @@
 module JSONAPI
   module Resources
-    class Railtie < Rails::Railtie
+    class Railtie < ::Rails::Railtie
       rake_tasks do
         load 'tasks/check_upgrade.rake'
       end
     end
   end
-end
+end

lib/tasks/check_upgrade.rake

@@ -5,7 +5,7 @@ namespace :jsonapi do
   namespace :resources do
     desc 'Checks application for orphaned overrides'
     task :check_upgrade => :environment do
-      Rails.application.eager_load!
+      ::Rails.application.eager_load!
 
       resource_klasses = ObjectSpace.each_object(Class).select { |klass| klass < JSONAPI::Resource}