postgresql - Ruby Sinatra/Postgres - can't connect to heroku database with PG.connect? -


i trying site set on heroku using sinatra , postgresql. worked locally (connecting local database), after pushing heroku , changing pg.connect reflect that, internal server error moment page tries access database.

require 'uri' require 'pg'  uri = uri.parse(env['database_url'])  def db(uri)   begin     connection = pg.connect(uri.hostname, uri.port, nil, nil, uri.path[1..-1], uri.user, uri.password)     yield(connection)   ensure     connection.close   end end

i pretty sure these parsing correctly, because env['database_url'] displays full postgres://user:password@host:port/database information i'm expecting, , if same in irb uri.hostname, ui.port, etc return what's expected .

this first time trying site working on heroku, not sure how troubleshoot this. (and googled of yesterday.)

results heroku pg:

=== database_url plan:        hobby-dev status:      available connections: 0/20 pg version:  9.4.2 created:     2015-05-30 19:24 utc data size:   17.7 mb tables:      5 rows:        9320/10000 (in compliance, close row limit) fork/follow: unsupported rollback:    unsupported

and tables show when when heroku pg:psql <database> cli.

some answers i've seen said add database.yml root app directory, so:

production:   adapter: 'postgresql'   database: '<database>'   host: env['database_url']   username: '<username>'

there's simple i'm missing, haven't seen complete guide sinatra/psql on heroku - nothing goes setting , connecting database. (everything seems rails-related.)

in database.yml file need specify correct host host entry. passing stored in database_url (something postgres://user:password@host:port/database) should host.

you need specify port if isn't default postgresql.

edit: should point out if plan store host (or else - should username , password) in environment variable you'll need wrap it, e.g. <%= env['host'] %>, not env['host'] (i.e. how have in database.yml excerpt above)


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