17
Ho mysql installato tramite homebrew. Creato il database prestamoApp_development Ho avviato il server (mysql.server start) e poi ho creato un nuovo progetto vuoto (rota nuovo prestamoApp -d mysql). Infine configurato l'utente e la password nel file database.yml in questo modo:Ruby on Rails non può connettersi al database mysql
default: &default
adapter: mysql2
encoding: utf8
pool: 5
username: root
password: pqdsimple
socket: /tmp/mysql.sock
development:
<<: *default
database: prestamoApp_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: prestamoApp_test
# As with config/secrets.yml, you never want to store sensitive information,
# like your database password, in your source code. If your source code is
# ever seen by anyone, they now have access to your database.
#
# Instead, provide the password as a unix environment variable when you boot
# the app. Read http://guides.rubyonrails.org/configuring.html#configuring-a-database
# for a full rundown on how to provide these environment variables in a
# production deployment.
#
# On Heroku and other platform providers, you may have a full connection URL
# available as an environment variable. For example:
#
# DATABASE_URL="mysql2://myuser:[email protected]/somedatabase"
#
# You can use this database configuration with:
#
# production:
# url: <%= ENV['DATABASE_URL'] %>
#
production:
<<: *default
database: prestamoApp_production
username: prestamoApp
password: <%= ENV['PRESTAMOAPP_DATABASE_PASSWORD'] %>
questo è il file gemma:
source 'https://rubygems.org'
# Bundle edge Rails instead: gem 'rails', github: 'rails/rails'
gem 'rails', '4.2.4'
# Use mysql as the database for Active Record
gem 'mysql2'
# Use SCSS for stylesheets
gem 'sass-rails', '~> 5.0'
# Use Uglifier as compressor for JavaScript assets
gem 'uglifier', '>= 1.3.0'
# Use CoffeeScript for .coffee assets and views
gem 'coffee-rails', '~> 4.1.0'
# See https://github.com/rails/execjs#readme for more supported runtimes
# gem 'therubyracer', platforms: :ruby
# Use jquery as the JavaScript library
gem 'jquery-rails'
# Turbolinks makes following links in your web application faster. Read more: https://github.com/rails/turbolinks
gem 'turbolinks'
# Build JSON APIs with ease. Read more: https://github.com/rails/jbuilder
gem 'jbuilder', '~> 2.0'
# bundle exec rake doc:rails generates the API under doc/api.
gem 'sdoc', '~> 0.4.0', group: :doc
# Use ActiveModel has_secure_password
# gem 'bcrypt', '~> 3.1.7'
# Use Unicorn as the app server
# gem 'unicorn'
# Use Capistrano for deployment
# gem 'capistrano-rails', group: :development
group :development, :test do
# Call 'byebug' anywhere in the code to stop execution and get a debugger console
gem 'byebug'
end
group :development do
# Access an IRB console on exception pages or by using <%= console %> in views
gem 'web-console', '~> 2.0'
# Spring speeds up development by keeping your application running in the background. Read more: https://github.com/rails/spring
gem 'spring'
end
e solo nel caso in cui il file.lock gemma:
GEM
remote: https://rubygems.org/
specs:
actionmailer (4.2.4)
actionpack (= 4.2.4)
actionview (= 4.2.4)
activejob (= 4.2.4)
mail (~> 2.5, >= 2.5.4)
rails-dom-testing (~> 1.0, >= 1.0.5)
actionpack (4.2.4)
actionview (= 4.2.4)
activesupport (= 4.2.4)
rack (~> 1.6)
rack-test (~> 0.6.2)
rails-dom-testing (~> 1.0, >= 1.0.5)
rails-html-sanitizer (~> 1.0, >= 1.0.2)
actionview (4.2.4)
activesupport (= 4.2.4)
builder (~> 3.1)
erubis (~> 2.7.0)
rails-dom-testing (~> 1.0, >= 1.0.5)
rails-html-sanitizer (~> 1.0, >= 1.0.2)
activejob (4.2.4)
activesupport (= 4.2.4)
globalid (>= 0.3.0)
activemodel (4.2.4)
activesupport (= 4.2.4)
builder (~> 3.1)
activerecord (4.2.4)
activemodel (= 4.2.4)
activesupport (= 4.2.4)
arel (~> 6.0)
activesupport (4.2.4)
i18n (~> 0.7)
json (~> 1.7, >= 1.7.7)
minitest (~> 5.1)
thread_safe (~> 0.3, >= 0.3.4)
tzinfo (~> 1.1)
arel (6.0.3)
binding_of_caller (0.7.2)
debug_inspector (>= 0.0.1)
builder (3.2.2)
byebug (6.0.2)
coffee-rails (4.1.0)
coffee-script (>= 2.2.0)
railties (>= 4.0.0, < 5.0)
coffee-script (2.4.1)
coffee-script-source
execjs
coffee-script-source (1.9.1.1)
debug_inspector (0.0.2)
erubis (2.7.0)
execjs (2.6.0)
globalid (0.3.6)
activesupport (>= 4.1.0)
i18n (0.7.0)
jbuilder (2.3.1)
activesupport (>= 3.0.0, < 5)
multi_json (~> 1.2)
jquery-rails (4.0.5)
rails-dom-testing (~> 1.0)
railties (>= 4.2.0)
thor (>= 0.14, < 2.0)
json (1.8.3)
loofah (2.0.3)
nokogiri (>= 1.5.9)
mail (2.6.3)
mime-types (>= 1.16, < 3)
mime-types (2.6.1)
mini_portile (0.6.2)
minitest (5.8.0)
multi_json (1.11.2)
mysql2 (0.4.0)
nokogiri (1.6.6.2)
mini_portile (~> 0.6.0)
rack (1.6.4)
rack-test (0.6.3)
rack (>= 1.0)
rails (4.2.4)
actionmailer (= 4.2.4)
actionpack (= 4.2.4)
actionview (= 4.2.4)
activejob (= 4.2.4)
activemodel (= 4.2.4)
activerecord (= 4.2.4)
activesupport (= 4.2.4)
bundler (>= 1.3.0, < 2.0)
railties (= 4.2.4)
sprockets-rails
rails-deprecated_sanitizer (1.0.3)
activesupport (>= 4.2.0.alpha)
rails-dom-testing (1.0.7)
activesupport (>= 4.2.0.beta, < 5.0)
nokogiri (~> 1.6.0)
rails-deprecated_sanitizer (>= 1.0.1)
rails-html-sanitizer (1.0.2)
loofah (~> 2.0)
railties (4.2.4)
actionpack (= 4.2.4)
activesupport (= 4.2.4)
rake (>= 0.8.7)
thor (>= 0.18.1, < 2.0)
rake (10.4.2)
rdoc (4.2.0)
sass (3.4.18)
sass-rails (5.0.4)
railties (>= 4.0.0, < 5.0)
sass (~> 3.1)
sprockets (>= 2.8, < 4.0)
sprockets-rails (>= 2.0, < 4.0)
tilt (>= 1.1, < 3)
sdoc (0.4.1)
json (~> 1.7, >= 1.7.7)
rdoc (~> 4.0)
spring (1.3.6)
sprockets (3.3.4)
rack (~> 1.0)
sprockets-rails (2.3.3)
actionpack (>= 3.0)
activesupport (>= 3.0)
sprockets (>= 2.8, < 4.0)
thor (0.19.1)
thread_safe (0.3.5)
tilt (2.0.1)
turbolinks (2.5.3)
coffee-rails
tzinfo (1.2.2)
thread_safe (~> 0.1)
uglifier (2.7.2)
execjs (>= 0.3.0)
json (>= 1.8.0)
web-console (2.2.1)
activemodel (>= 4.0)
binding_of_caller (>= 0.7.2)
railties (>= 4.0)
sprockets-rails (>= 2.0, < 4.0)
PLATFORMS
ruby
DEPENDENCIES
byebug
coffee-rails (~> 4.1.0)
jbuilder (~> 2.0)
jquery-rails
mysql2
rails (= 4.2.4)
sass-rails (~> 5.0)
sdoc (~> 0.4.0)
spring
turbolinks
uglifier (>= 1.3.0)
web-console (~> 2.0)
BUNDLED WITH
1.10.6
Quando provo a fare questo:
rake db:schema:dump
ottengo questo errore:
rake aborted!
Gem::LoadError: Specified 'mysql2' for database adapter, but the gem is not loaded. Add `gem 'mysql2'` to your Gemfile (and ensure its version is at the minimum required by ActiveRecord).
/usr/local/lib/ruby/gems/2.2.0/gems/activerecord-4.2.4/lib/active_record/connection_adapters/connection_specification.rb:177:in `rescue in spec'
/usr/local/lib/ruby/gems/2.2.0/gems/activerecord-4.2.4/lib/active_record/connection_adapters/connection_specification.rb:174:in `spec'
/usr/local/lib/ruby/gems/2.2.0/gems/activerecord-4.2.4/lib/active_record/connection_handling.rb:50:in `establish_connection'
/usr/local/lib/ruby/gems/2.2.0/gems/activerecord-4.2.4/lib/active_record/railtie.rb:120:in `block (2 levels) in <class:Railtie>'
/usr/local/lib/ruby/gems/2.2.0/gems/activesupport-4.2.4/lib/active_support/lazy_load_hooks.rb:38:in `instance_eval'
/usr/local/lib/ruby/gems/2.2.0/gems/activesupport-4.2.4/lib/active_support/lazy_load_hooks.rb:38:in `execute_hook'
/usr/local/lib/ruby/gems/2.2.0/gems/activesupport-4.2.4/lib/active_support/lazy_load_hooks.rb:45:in `block in run_load_hooks'
/usr/local/lib/ruby/gems/2.2.0/gems/activesupport-4.2.4/lib/active_support/lazy_load_hooks.rb:44:in `each'
/usr/local/lib/ruby/gems/2.2.0/gems/activesupport-4.2.4/lib/active_support/lazy_load_hooks.rb:44:in `run_load_hooks'
/usr/local/lib/ruby/gems/2.2.0/gems/activerecord-4.2.4/lib/active_record/base.rb:315:in `<module:ActiveRecord>'
/usr/local/lib/ruby/gems/2.2.0/gems/activerecord-4.2.4/lib/active_record/base.rb:26:in `<top (required)>'
/usr/local/lib/ruby/gems/2.2.0/gems/activerecord-4.2.4/lib/active_record/tasks/mysql_database_tasks.rb:8:in `<class:MySQLDatabaseTasks>'
/usr/local/lib/ruby/gems/2.2.0/gems/activerecord-4.2.4/lib/active_record/tasks/mysql_database_tasks.rb:3:in `<module:Tasks>'
/usr/local/lib/ruby/gems/2.2.0/gems/activerecord-4.2.4/lib/active_record/tasks/mysql_database_tasks.rb:2:in `<module:ActiveRecord>'
/usr/local/lib/ruby/gems/2.2.0/gems/activerecord-4.2.4/lib/active_record/tasks/mysql_database_tasks.rb:1:in `<top (required)>'
/usr/local/lib/ruby/gems/2.2.0/gems/activerecord-4.2.4/lib/active_record/tasks/database_tasks.rb:50:in `<module:DatabaseTasks>'
/usr/local/lib/ruby/gems/2.2.0/gems/activerecord-4.2.4/lib/active_record/tasks/database_tasks.rb:37:in `<module:Tasks>'
/usr/local/lib/ruby/gems/2.2.0/gems/activerecord-4.2.4/lib/active_record/tasks/database_tasks.rb:4:in `<module:ActiveRecord>'
/usr/local/lib/ruby/gems/2.2.0/gems/activerecord-4.2.4/lib/active_record/tasks/database_tasks.rb:3:in `<top (required)>'
/usr/local/lib/ruby/gems/2.2.0/gems/activerecord-4.2.4/lib/active_record/railtie.rb:41:in `block (3 levels) in <class:Railtie>'
Gem::LoadError: can't activate mysql2 (~> 0.3.13), already activated mysql2-0.4.0. Make sure all dependencies are added to Gemfile.
/usr/local/lib/ruby/gems/2.2.0/gems/bundler-1.10.6/lib/bundler/rubygems_integration.rb:302:in `block in replace_gem'
/usr/local/lib/ruby/gems/2.2.0/gems/activerecord-4.2.4/lib/active_record/connection_adapters/mysql2_adapter.rb:3:in `<top (required)>'
/usr/local/lib/ruby/gems/2.2.0/gems/activesupport-4.2.4/lib/active_support/dependencies.rb:274:in `require'
/usr/local/lib/ruby/gems/2.2.0/gems/activesupport-4.2.4/lib/active_support/dependencies.rb:274:in `block in require'
/usr/local/lib/ruby/gems/2.2.0/gems/activesupport-4.2.4/lib/active_support/dependencies.rb:240:in `load_dependency'
/usr/local/lib/ruby/gems/2.2.0/gems/activesupport-4.2.4/lib/active_support/dependencies.rb:274:in `require'
/usr/local/lib/ruby/gems/2.2.0/gems/activerecord-4.2.4/lib/active_record/connection_adapters/connection_specification.rb:175:in `spec'
/usr/local/lib/ruby/gems/2.2.0/gems/activerecord-4.2.4/lib/active_record/connection_handling.rb:50:in `establish_connection'
/usr/local/lib/ruby/gems/2.2.0/gems/activerecord-4.2.4/lib/active_record/railtie.rb:120:in `block (2 levels) in <class:Railtie>'
/usr/local/lib/ruby/gems/2.2.0/gems/activesupport-4.2.4/lib/active_support/lazy_load_hooks.rb:38:in `instance_eval'
/usr/local/lib/ruby/gems/2.2.0/gems/activesupport-4.2.4/lib/active_support/lazy_load_hooks.rb:38:in `execute_hook'
/usr/local/lib/ruby/gems/2.2.0/gems/activesupport-4.2.4/lib/active_support/lazy_load_hooks.rb:45:in `block in run_load_hooks'
/usr/local/lib/ruby/gems/2.2.0/gems/activesupport-4.2.4/lib/active_support/lazy_load_hooks.rb:44:in `each'
/usr/local/lib/ruby/gems/2.2.0/gems/activesupport-4.2.4/lib/active_support/lazy_load_hooks.rb:44:in `run_load_hooks'
/usr/local/lib/ruby/gems/2.2.0/gems/activerecord-4.2.4/lib/active_record/base.rb:315:in `<module:ActiveRecord>'
/usr/local/lib/ruby/gems/2.2.0/gems/activerecord-4.2.4/lib/active_record/base.rb:26:in `<top (required)>'
/usr/local/lib/ruby/gems/2.2.0/gems/activerecord-4.2.4/lib/active_record/tasks/mysql_database_tasks.rb:8:in `<class:MySQLDatabaseTasks>'
/usr/local/lib/ruby/gems/2.2.0/gems/activerecord-4.2.4/lib/active_record/tasks/mysql_database_tasks.rb:3:in `<module:Tasks>'
/usr/local/lib/ruby/gems/2.2.0/gems/activerecord-4.2.4/lib/active_record/tasks/mysql_database_tasks.rb:2:in `<module:ActiveRecord>'
/usr/local/lib/ruby/gems/2.2.0/gems/activerecord-4.2.4/lib/active_record/tasks/mysql_database_tasks.rb:1:in `<top (required)>'
/usr/local/lib/ruby/gems/2.2.0/gems/activerecord-4.2.4/lib/active_record/tasks/database_tasks.rb:50:in `<module:DatabaseTasks>'
/usr/local/lib/ruby/gems/2.2.0/gems/activerecord-4.2.4/lib/active_record/tasks/database_tasks.rb:37:in `<module:Tasks>'
/usr/local/lib/ruby/gems/2.2.0/gems/activerecord-4.2.4/lib/active_record/tasks/database_tasks.rb:4:in `<module:ActiveRecord>'
/usr/local/lib/ruby/gems/2.2.0/gems/activerecord-4.2.4/lib/active_record/tasks/database_tasks.rb:3:in `<top (required)>'
/usr/local/lib/ruby/gems/2.2.0/gems/activerecord-4.2.4/lib/active_record/railtie.rb:41:in `block (3 levels) in <class:Railtie>'
Tasks: TOP => db:schema:dump => db:load_config
(See full trace by running task with --trace)
Qualcuno può per favore mi dica cosa c'è di sbagliato? Cosa devo fare per risolvere questo problema, non ho fatto altro che creare un progetto vuoto.
Grazie mio signore, questo era il problema – Fjallbacka
Sì, sembra che Rails non funzioni ancora con mysql2 0.4+, usa la versione 0.3.20 che è l'ultima che funziona. – Shinta
grazie amico !!!! – Alexis