I created a new Rails project without database (rails new myApp -O).
How can I add a Postgresql database now ?
Add the pg gem to your gemfile.
# Use postgresql as the database for Active Record
gem 'pg'
Then, if you do not have it, you will need a database.yml file in your config directory so go there and in the config directory create a fole called database.yml which should look like this.
config/database.yml
default: &default
adapter: postgresql
encoding: unicode
username: your username for your Postgresql access
password: your password for your Postgresql access
# For details on connection pooling, see rails configuration guide
# http://guides.rubyonrails.org/configuring.html#database-pooling
pool: <%= ENV.fetch("RAILS_MAX_THREADS") { 5 } %>
development:
<<: *default
database: The name for your **development** database that you created (probably in PGAdmin?)
test:
<<: *default
database: The name for your **test** database that you created (probably in PGAdmin?)
production:
<<: *default
database: The name for your **production** database that you created (probably in PGAdmin?)
Related
I recently switched db's from sqlite3 to PG. My username and password for pg were hard-coded, and although it was working, this was not safe practice. SO I stored my password in an ENV variable in a .yml file, and I reference that variable in my database.yml file, but when I run the server, it gives me the error "PG::ConnectionBad
fe_sendauth: no password supplied"
the following is my pg_keys.yml file
PG_PASSWORD: "***********"
And the following is my database.yml file:
default: &default
adapter: postgresql
encoding: unicode
pool: <%= ENV.fetch("RAILS_MAX_THREADS") { 5 } %>
timeout: 5000
development:
<<: *default
database: stockapp_development
username: postgres
password: <%= ENV['PG_PASSWORD'] %>
host: localhost
# 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:
<<: *default
database: stockapp_test
host: localhost
username: postgres
password: <%= ENV['PG_PASSWORD'] %>
production:
<<: *default
database: stockapp_production
username: stockapp
password: <%= ENV['STOCKAPP_DATABASE_PASSWORD'] %>
Why is it saying that no password is supplied? Does my database.yml not see the password in the other file? Do I need to export the password?
It is because ENV variables come from https://github.com/bkeepers/dotenv.
Install this gem by adding it to your Gemfile, then run bundle and set the variable PG_PASSWORD=*********** in .env in your root. Then it should work fine.
I have created a Rails 5.0.2 app with postgres as the database, it all works fine in the development environment.
But when I try to test the app in the production environment (Still on my local machine) I just can't figure out what the password for the database is.
I see this error in the log:
PG::ConnectionBad (FATAL: Peer authentication failed for user "myapp"
My database.yml file:
default: &default
adapter: postgresql
encoding: unicode
pool: <%= ENV.fetch("RAILS_MAX_THREADS") { 5 } %>
development:
<<: *default
database: myapp_development
production:
<<: *default
database: myapp_production
username: myapp
password: <%= ENV['MYAPP_DATABASE_PASSWORD'] %>
Can I access the ENV['MYAPP_DATABASE_PASSWORD'] somehow? Was I supposed to set it up when I created the app?
I realize this may be very trivial. Thanks.
I tried running db:migrate on my app and I'm getting this error.Not sure what is the cause.
My database is MySQL
using MySQL 64-bit connector
ruby version:ruby 2.2.6p396 (2016-11-15 revision 56800) [i386-mingw32]
I've done a google search and I'm not getting anything..Can anyone explain this error pls?
NotImplementedError: NotImplementedError
C:/RailsInstaller/Ruby2.2.0/lib/ruby/gems/2.2.0/gems/activerecord-5.0.1/lib/active_record/connection_adapters/abstract/database_statements.rb:85:in exec_query'
C:/RailsInstaller/Ruby2.2.0/lib/ruby/gems/2.2.0/gems/activerecord-5.0.1/lib/active_record/connection_adapters/abstract/database_statements.rb:377:in 'select_prepared'
C:/RailsInstaller/Ruby2.2.0/lib/ruby/gems/2.2.0/gems/activerecord-5.0.1/lib/active_record/connection_adapters/abstract/database_statements.rb:39:inselect_all'
C:/RailsInstaller/Ruby2.2.0/lib/ruby/gems/2.2.0/gems/activerecord-5.0.1/lib/active_record/connection_adapters/abstract/query_cache.rb:95:in select_all'
C:/RailsInstaller/Ruby2.2.0/lib/ruby/gems/2.2.0/gems/activerecord-5.0.1/lib/active_record/querying.rb:39:infind_by_sql'
C:/RailsInstaller/Ruby2.2.0/lib/ruby/gems/2.2.0/gems/activerecord-5.0.1/lib/active_record/relation.rb:702:in `exec_queries'
C:/RailsInstaller/Ruby2.2.0/lib/ruby/gems/2.2.0/gems/rake-12.0.0/exe/rake:27:in <top (required)>'
C:/RailsInstaller/Ruby2.2.0/bin/rake:23:inload'
C:/RailsInstaller/Ruby2.2.0/bin/rake:23:in `'
Tasks: TOP => db:
migrate
You can try this..
Check your config/database.yml file.
your config/database.yml must look like and username, password should be change your mysql's username, password..
default: &default
adapter: mysql2
encoding: utf8
pool: 5
username: username
password: password
socket: /var/run/mysqld/mysqld.sock
development:
<<: *default
database: uBuild-rails_development
test:
<<: *default
database: uBuild-rails_test
production:
<<: *default
database: uBuild-rails_development
username: username
password: password
Also check you Gemfile
gem 'mysql2', '< 0.3' # as stated above
I had the same problem, what I did was to create the project again using this command:
rails new my_project -d=mysql
This way the configuration in database.yml and gemfile is created automatically avoiding problems. You only need to edit database.yml mysql password after this you can use
rails g scaffold Examples attrib1:string attrib2:string
to create views etc
rake db:create
to create the database and then
rake db:migrate
hope this helps...
Database file is in config/database.yml and configuration be
default: &default
adapter: mysql2 #if use postgres the add postgresql
pool: 5
timeout: 5000
username : username #mysql username
password : password #mysql password
development:
<<: *default
database: application_name
test:
<<: *default
database: application_name
production:
<<: *default
database: application_name
Run following command to setup database:
run rake db:create
run rake db:migrate
I'm trying to upload a rails app to heroku and I'm running into problems to change my app from sqlite3 to postgres, mainly when I run rake db:create I get:
could not connect to server: No such file or directory
Is the server running locally and accepting
connections on Unix domain socket "/var/run/postgresql/.s.PGSQL.5432"?
This is what my database.yml looks like:
default: &default
adapter: postgresql
pool: 5
timeout: 5000
development:
<<: *default
database: anagram_development
# 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:
<<: *default
database: anagram_test
production:
<<: *default
database: anagram_production
Do you have postgresql installed locally? If so, double check that it's running. Your database.yml file is also missing some required information to connect to a postgres database. You need to provide username, password and hostname.
Here's an example of mine which connects to a local postgres db:
development:
adapter: postgresql
encoding: unicode
database: app_development
pool: 10
username: <%= %x(whoami) %>
password:
For heroku/production, you can use the following:
production:
url: <%= ENV['DATABASE_URL'] %>
pool: <%= ENV['DB_POOL'] || 10 %>
I am new in Ruby on rails and i am using ruby v 1.9.3 & rails 3.2.12 with window 7
i want to PostgreSQL database connection in my app.
this is my db connection
development:
adapter: postgresql
encoding: unicode
database: mmagap_development
pool: 5
timeout: 5000
host: 127.0.0.1
username: postgres
password: root
test:
adapter: postgresql
encoding: unicode
database: mmagap_test
pool: 5
username: postgres
password: root
production:
adapter: postgresql
host: 127.0.0.1
encoding: unicode
database: mmagap_production
pool: 5
username: postgres
password: root
this connection every time give error
D:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/activerecord-3.2.12/lib/active_record/connection_adapters/postgresql_adapter.rb:1208:in
`initialize': received invalid response to SSL negotiation: - (PG::ConnectionBad)
Please help how to create PostgreSQL database connection in my RoR app.
You can change host: 127.0.0.1 to host: localhost. It should solve the issue.
First install pg gem
gem install pg
your apps database.yml file shoud be like this
development:
adapter: postgresql
encoding: unicode
database: myapp_development
pool: 5
username: myapp
password: password1
test:
adapter: postgresql
encoding: unicode
database: myapp_test
pool: 5
username: myapp
password: password1
Now run
rake db:setup
rake db:migrate
and after this run
rails s
Use this link to verify, Is Postgresql installed successfully or not.
DigitalOceanCommunityArticle Click Here
AskUbuntuLink Click Here
Removed host from development config in database.yml,its worked for me.
development:
adapter: postgresql
database: tes
pool: 5
timeout: 5000
username: postgres
password: root
First you should install PostgreSQL and PgAdmin
After installing this thing you will have to add some pic of code ( to connect PostgreSQL to your rails project ) in your project config/database.yml file (before add PostgreSQL code you will have to remove all Sqlite3 code from config/database.yml file).
development:
adapter: postgresql
encoding: unicode
database: database_name
pool: 5
host: localhost
username: your_PostgreSQL_username
password: your_PostgreSQL_password
test:
adapter: postgresql
encoding: unicode
database: database_name
pool: 5
username: your_PostgreSQL_username
password: your_PostgreSQL_password
staging:
url: <%= ENV['DATABASE_URL'] %>
production:
url: <%= ENV['DATABASE_URL'] %>
postgres is default username and password in PostgreSQL database\
after add this pic of code you have to add one line of code in your rails project root directory in Gemfile
gem ‘pg’
and you must have to remove sqlite3 code from Gemfile ( gem 'sqlite3', '~> 1.4' )before adding gem 'pg'