From 5ca11fefce6d83f5db399aa4412f1f1a0d42b2e6 Mon Sep 17 00:00:00 2001
From: Seamus Abshere <seamus@abshere.net>
Date: Mon, 23 Jul 2012 17:33:00 -0500
Subject: [PATCH 1/2] Make sure :environment task is executed before
 db:schema:load or db:structure:load

Otherwise, if schema_format = :sql, you will see:
$ rake db:setup --trace
** Invoke db:setup (first_time)
** Invoke db:schema:load_if_ruby (first_time)
** Invoke db:create (first_time)
** Invoke db:load_config (first_time)
** Invoke rails_env (first_time)
** Execute rails_env
** Execute db:load_config
** Execute db:create
db_example_development already exists
db_example_test already exists
** Execute db:schema:load_if_ruby       #<-------- :environment hasn't been executed yet
** Invoke db:schema:load (first_time)
** Invoke environment (first_time)
** Execute environment
** Execute db:schema:load
~/db_example/db/schema.rb doesn't exist yet. Run `rake db:migrate` to create it then try again.
---
 activerecord/lib/active_record/railties/databases.rake | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/activerecord/lib/active_record/railties/databases.rake b/activerecord/lib/active_record/railties/databases.rake
index 78ecb1cdc5..31e04fdc93 100644
--- a/activerecord/lib/active_record/railties/databases.rake
+++ b/activerecord/lib/active_record/railties/databases.rake
@@ -242,7 +242,7 @@ db_namespace = namespace :db do
       end
     end
 
-    task :load_if_ruby => 'db:create' do
+    task :load_if_ruby => [:environment, 'db:create'] do
       db_namespace["schema:load"].invoke if ActiveRecord::Base.schema_format == :ruby
     end
 
@@ -327,7 +327,7 @@ db_namespace = namespace :db do
       end
     end
 
-    task :load_if_sql => 'db:create' do
+    task :load_if_sql => [:environment, 'db:create'] do
       db_namespace["structure:load"].invoke if ActiveRecord::Base.schema_format == :sql
     end
   end

From e7e86566ccc7bfb3fa0046961ef38f5431d55e35 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Rafael=20Mendon=C3=A7a=20Fran=C3=A7a?=
 <rafaelmfranca@gmail.com>
Date: Sun, 5 Aug 2012 20:33:26 -0300
Subject: [PATCH 2/2] Update changelog

---
 activerecord/CHANGELOG.md | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/activerecord/CHANGELOG.md b/activerecord/CHANGELOG.md
index 08aa3aae34..50407a2488 100644
--- a/activerecord/CHANGELOG.md
+++ b/activerecord/CHANGELOG.md
@@ -1,5 +1,10 @@
 ## Rails 4.0.0 (unreleased) ##
 
+*   Make sure `:environment` task is executed before `db:schema:load` or `db:structure:load`
+    Fixes #4772.
+
+    *Seamus Abshere*
+
 *   Removed `:finder_sql` and `:counter_sql` collection association options. Please
     use scopes instead.