Question

Just started a new app with

rails <appname> new -d postgresql

I recently installed Postgres, and this is my first time trying to use it with an app. I generated a whole bunch of models, then ran rake db:migrate and got the following error:

rake aborted!
could not connect to server: Permission denied
Is the server running locally and accepting
connections on Unix domain socket "/var/pgsql_socket/.s.PGSQL.5432"?

Does this mean that I installed Postgres incorrectly? Any idea what I should fix? Or does the problem have to do with trying to migrate several models at once? Sorry if this is a dumb question. I’m new to both Rails and postgres.

—– MY DATABASE.YML —–

development:
  adapter: postgresql
  encoding: unicode
  database: <appname>_development
  pool: 5
  username: <appname>
  password:

  # Connect on a TCP socket. Omitted by default since the client uses a
  # domain socket that doesn't need configuration. Windows does not have
  # domain sockets, so uncomment these lines.
  #host: localhost
  #port: 5432

  # Schema search path. The server defaults to $user,public
  #schema_search_path: myapp,sharedapp,public

  # Minimum log levels, in increasing order:
  #   debug5, debug4, debug3, debug2, debug1,
  #   log, notice, warning, error, fatal, and panic
  # The server defaults to notice.
  #min_messages: warning

# Warning: The database defined as "test" will be erased and
# re-generated from your development database when you run "rake".
# Do not set this db to the same as development or production.
test:
  adapter: postgresql
  encoding: unicode
  database: <appname>_test
  pool: 5
  username: <appname>
  password:

production:
  adapter: postgresql
  encoding: unicode
  database: <appname>_production
  pool: 5
  username: <appname>
  password:

— Executed initdb /usr/local/var/postgres -E utf8 —

Got the following:

initdb /usr/local/var/postgres -E utf8
The files belonging to this database system will be owned by user "sashafklein".
This user must also own the server process.

The database cluster will be initialized with locale en_US.UTF-8.
The default text search configuration will be set to "english".

initdb: directory "/usr/local/var/postgres" exists but is not empty
If you want to create a new database system, either remove or empty
the directory "/usr/local/var/postgres" or run initdb
with an argument other than "/usr/local/var/postgres".

Answer 1

Did you create a config/database.yml?

This basically holds the connection information for Postgres

looks something like this

development:
  adapter: postgresql
  encoding: unicode
  database: <appname>_development
  pool: 5
  username: <username>
  password: <password>