Add rake db:prepare rake task.

It Creates the database, loads the schema, run the migrations and initializes with the seed data
(use db:reset to also drop the database first). This rake task runs in an idempotent way

ref https://github.com/rails/rails/pull/33139#discussion_r195930751

1 files changed, 8 insertions, 0 deletions

diff --git a/activerecord/lib/active_record/railties/databases.rake b/activerecord/lib/active_record/railties/databases.rake
index f021a8f6c4..ee3668e1a9 100644
--- a/activerecord/lib/active_record/railties/databases.rake
+++ b/activerecord/lib/active_record/railties/databases.rake
@@ -222,6 +222,14 @@ db_namespace = namespace :db do
   desc "Creates the database, loads the schema, and initializes with the seed data (use db:reset to also drop the database first)"
   task setup: ["db:schema:load_if_ruby", "db:structure:load_if_sql", :seed]
 
+  desc "Creates the database, loads the schema, run the migrations and initializes with the seed data (use db:reset to also drop the database first)"
+  task prepare: :load_config do
+    ActiveRecord::Base.connection
+    db_namespace["migrate"].invoke
+  rescue ActiveRecord::NoDatabaseError
+    db_namespace["setup"].invoke
+  end
+
   desc "Loads the seed data from db/seeds.rb"
   task seed: :load_config do
     db_namespace["abort_if_pending_migrations"].invoke