Question

I created a simple rails application:

1

$ rails new myapp1 -d postrgresql

2. Removed /public/index.html

3. Created the Homecontroller and the actions

4. Wrote the routes

myapp1::Application.routes.draw do

  root :to => "home#index"
  match 'about' => 'home#about'
  match 'contacts' => 'home#contacts'
  match 'projects' => 'home#projects'
end

5. Created the views and the default layout

6. The bottom line. Here is the database.yml

development:

  adapter: postgresql
  encoding: unicode
  database: myapp1_db
  host: localhost
  pool: 5
  username: myapp1_user
  password: 1234
 
test:
  adapter: postgresql
    encoding: unicode
    database: myapp1_db
    host: localhost
    pool: 5
    username: myapp1_user
    password: 1234

production:
  adapter: postgresql
    encoding: unicode
    database: myapp1_db
    host: localhost
    pool: 5
    username: myapp1_user
    password: 1234

and of course I created user and database

sudo -u postgres psql
postgres=# \password
postgres=# create user myapp1_user with password '1234';
postgres=# create database myapp1_db owner myapp1_user; 

But there are some worries:

1. Now I don’t use any database, but in spite of this the application gives an error

PG::Error FATAL: Peer authentication failed for user "myapp1"

2. It seems like rails turns a blind eye to database.yml. Why does it use the user myapp1 instead of myapp1_user?

Answer 1

Whitespace is significant in YAML.

production:
  adapter: postgresql
    encoding: unicode
    ...
    password: 1234

Should be:

production:
  adapter: postgresql
  encoding: unicode
  ...
  password: 1234