问题
I am working through Michael Hartl's excellent tutorial but when trying to prepare the test database with the command: bundle exec rake db:test:prepare I get this error message:
ERROR: must be owner of database sample_app_test...
which I never got when using the development database, because I had created the following database role for my Rails app:
CREATE ROLE demo_app WITH CREATEDB LOGIN
(this is using Postgresql)
Does anyone understand why this is failing in the test environment? TIA...
回答1:
Did you ensure the ownership of the test DB? try running the \l command on Postgres console client and check the ownerships. you can also try the following query:
ALTER DATABASE sample_app_test OWNER TO demo_app;
回答2:
First post, writing this down for posterity. I was having the same problem but was able to fix it. You just have to make sure you were/are signed in as a superuser when you create your databases (or the one that is throwing the error).
I was logging into psql with this code:
sudo sudo -u postgres psql
And created my databases. This is bad. You want to log in with these superuser credentials:
sudo su - postgres
And then after you're logged in to postgres:
psql
Then create your databases. You can kill your old databases with the command
DROP DATABASE "database_to_drop";
Recreate them and you should be good to go!
来源：https://stackoverflow.com/questions/7210563/rake-aborted-error-must-be-owner-of-database