1 files changed, 6 insertions, 7 deletions
diff --git a/activerecord/lib/active_record/railtie.rb b/activerecord/lib/active_record/railtie.rb
index 055d27d85c..4e39654e5b 100644
--- a/activerecord/lib/active_record/railtie.rb
+++ b/activerecord/lib/active_record/railtie.rb
@@ -30,6 +30,7 @@ module ActiveRecord
     )
 
     rake_tasks do
+      require "active_record/base"
       load "active_record/railties/databases.rake"
     end
 
@@ -38,9 +39,14 @@ module ActiveRecord
     # first time. Also, make it output to STDERR.
     console do |app|
       require "active_record/railties/console_sandbox" if app.sandbox?
+      require "active_record/base"
       ActiveRecord::Base.logger = Logger.new(STDERR)
     end
 
+    runner do |app|
+      require "active_record/base"
+    end
+
     initializer "active_record.initialize_timezone" do
       ActiveSupport.on_load(:active_record) do
         self.time_zone_aware_attributes = true
@@ -83,13 +89,6 @@ module ActiveRecord
       end
     end
 
-    initializer "active_record.validate_explain_support" do |app|
-      if app.config.active_record[:auto_explain_threshold_in_seconds] &&
-        !ActiveRecord::Base.connection.supports_explain?
-        warn "auto_explain_threshold_in_seconds is set but will be ignored because your adapter does not support this feature. Please unset the configuration to avoid this warning."
-      end
-    end
-
     # Expose database runtime to controller for logging.
     initializer "active_record.log_runtime" do |app|
       require "active_record/railties/controller_runtime"