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
Related
Our Rails app has just been upgraded to Rails 6.0 but the deployment to Heroku fails with:
Preparing app for Rails asset pipeline
Running: rake assets:precompile
DEPRECATION WARNING: Including LoggerSilence is deprecated and will be removed in Rails 6.1. Please use `ActiveSupport::LoggerSilence` instead (called from <top (required)> at /tmp/build_b9759d496c72c1085bb8441e3c2159fb/config/application.rb:7)
rake aborted!
ActiveRecord::AdapterNotSpecified: database configuration does not specify adapter
/tmp/build_b9759d496c72c1085bb8441e3c2159fb/vendor/bundle/ruby/2.6.0/gems/activerecord-6.0.0/lib/active_record/connection_adapters/connection_specification.rb:163:in `spec'
config/database.yml:
default: &default
adapter: postgresql
encoding: utf8
pool: 5
username: <%= ENV['POSTGRESQL_USER'] %>
password:
socket: /tmp/mysql.sock
development:
<<: *default
database: OurApplication_development
test:
<<: *default
database: OurApplication_test
production:
url: <%= ENV['DATABASE_URL'] %>
Using version:
rails (6.0.0)
Ruby (2.6.5)
Does anybody have an idea how to solve this issue?
The problem has been solved by adding the 'adapter' to 'production' in the database.yml. This wasn't necessary when our project was on Rails 4 and 5.
production:
adapter: postgresql
A better solution altogether would just be to use ENV["DATABASE_URL"] to specify the connection details and keep your defaults segment to the actual minimal defaults:
default: &default
adapter: postgresql
encoding: utf8
pool: 5
development:
<<: *default
database: OurApplication_development
test:
<<: *default
database: OurApplication_test
production:
# doing url: is just stupid as thats what rails does anyways
<<: *default
This avoids potential developer wars. You can use DotEnv to load different ENV vars for each environment. Alternatively you can add another hash to to your database.yml and merge it:
default: &default
adapter: postgresql
encoding: utf8
pool: 5
local_settings: &local_settings
# will raise an exception on nil instead of failing silently
username: <%= ENV.fetch('POSTGRESQL_USER') %>
password:
socket: /tmp/mysql.sock
development:
<<: *default
<<: *local_settings
database: OurApplication_development
test:
<<: *default
<<: *local_settings
database: OurApplication_test
production:
# doing url: is just stupid as thats what rails does anyways
<<: *default
While running the command rake db:create, the system throws postgresql authentication fails
FATAL: password authentication failed for user "postgres"
Couldn't create database for {"adapter"=>"postgresql", "encoding"=>"unicode", "pool"=>5, "username"=>"postgres", "password"=>"password", "timeout"=>5000, "host"=>"localhost", "database"=>"rails-sample-guestbook-master_development"}
rake aborted!
database.yml file
default: &default
adapter: postgresql
encoding: unicode
pool: 5
username: supranimbus
password: 123456789
timeout: 5000
host: localhost
development:
<<: *default
database: rails-sample-guestbook-master_development
test:
<<: *default
database: rails-sample-guestbook-master_test
production:
<<: *default
database: rails-sample-guestbook-master_production
I guess the problem is setup password on postgresql if you don't remember the default password then go to pgAdmin click to open dashboard and then the left sidebar see the below image
Click the Properties... then will open a modal like see the below image
and click the Definition tab and see the Password field and set the new password, remember this password for postgres username.
That's is for password setup!
Now update your database.yml file like below
default: &default
adapter: postgresql
encoding: unicode
username: postgres
password: 123456 #=> which you set for postgres
pool: <%= ENV.fetch("RAILS_MAX_THREADS") { 5 } %>
development:
<<: *default
database: project_development
Hope to help
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?)
I got some problems with my rails_admin gem in the production when I trying make first user admin in Rails console.
In the development all works fine. Look at the error and code.
Error terminal:
2.3.0 :001 > u = User.first
ActiveRecord::NoDatabaseError: FATAL: database "myApp_development" does not exist
database.production.yml
default: &default
adapter: postgresql
encoding: UTF-8
pool: 5
development:
<<: *default
database: myApp_development
username: deployer
password: password
test:
<<: *default
database: myApp_test
username: deployer
password: password
production:
<<: *default
database: myApp_production
username: deployer
password: password
To run rails console in the production environment you should use bundle exec rails console production or bundle exec rails console RAILS_ENV=production, the command bundle exec rails console run console in the development env by default.
Create the database table and do
rake db:migrate RAILS_ENV=production
rails console RAILS_ENV=production
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'