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-rw-r--r--activerecord/lib/active_record/base.rb5
-rw-r--r--activerecord/lib/active_record/fixtures.rb6
-rw-r--r--railties/lib/rails/commands/dbconsole.rb6
3 files changed, 17 insertions, 0 deletions
diff --git a/activerecord/lib/active_record/base.rb b/activerecord/lib/active_record/base.rb
index 47dc2d4a3a..00324b14f2 100644
--- a/activerecord/lib/active_record/base.rb
+++ b/activerecord/lib/active_record/base.rb
@@ -1,3 +1,8 @@
+begin
+ require 'psych'
+rescue LoadError
+end
+
require 'yaml'
require 'set'
require 'active_support/benchmarkable'
diff --git a/activerecord/lib/active_record/fixtures.rb b/activerecord/lib/active_record/fixtures.rb
index b6f0511b9a..216c691833 100644
--- a/activerecord/lib/active_record/fixtures.rb
+++ b/activerecord/lib/active_record/fixtures.rb
@@ -1,4 +1,10 @@
require 'erb'
+
+begin
+ require 'psych'
+rescue LoadError
+end
+
require 'yaml'
require 'csv'
require 'zlib'
diff --git a/railties/lib/rails/commands/dbconsole.rb b/railties/lib/rails/commands/dbconsole.rb
index 14d245ab2e..300fd6da05 100644
--- a/railties/lib/rails/commands/dbconsole.rb
+++ b/railties/lib/rails/commands/dbconsole.rb
@@ -1,4 +1,10 @@
require 'erb'
+
+begin
+ require 'psych'
+rescue LoadError
+end
+
require 'yaml'
require 'optparse'
require 'rbconfig'