If my localhost:3000 page is showing "Database adapter postgresql", does this mean postgresql is running and not mysql?
Background: I originally installed postgresql and later installed mysql.
My database.yml file currently contains the following so I'm not sure where I'm going wrong here.
development:
adapter: mysql2
host: localhost
database: projects
username: root
password:
pool: 5
timeout: 5000
1: add gem 'mysql2' in your gemfile
2: run bundle install
3: mysql -u root # for do login and create db
4: mysql> create Database projects;
Hope this help you !!!
Related
I'm new to Rails and I'm going through a tutorial on Lynda.com, Rails 4 Essentials. I'm on a Windows 7 x64 machine and I'm trying to connect the MySQL database to the Rails app. I've successfully created the database and created a new user.
I had issues running the mysql2 gem and I could only get version 0.3.11 to work (it's on version 0.3.16 as of this post). I copied the libmysql.dll from the C:\Program Files\MySQL\MySQL Connector.C 6.1\lib to my C:\RailsInstaller\Ruby2.0.0\bin directory as the instructions stated.
Everything seems to be ok at this point.
I configured my database.yml file to match my database credentials (I had to create this from scratch, nothing was generated when I ran mysql2).
#config\database.yml
development:
adapter: mysql2
database: simple_cms_development
username: craig
password: password
host: 127.0.0.1
socket: /tmp/mysql.sock
test:
adapter: mysql2
database: simple_cms_test
username: craig
password: password
host: 127.0.0.1
socket: /tmp/mysql.sock
production:
adapter: mysql2
database: simple_cms_production
username: craig
password: password
host: 127.0.0.1
socket: /tmp/mysql.sock
I got to try to connect my database with MySQL using:
rake db:schema:dump
and I get this crap:
LoadError: cannot load such file -- mysql2/2.0/mysql2
I see a directory called mysql2/1.9 and there is a file called mysql.so in there but there is no 2.0.
Any ideas? Thanks!
The joys of developing on a windows machine :)
I suggest you check this question - it looks like the same problem.
Error "...cannot load such file -- mysql2/2.0/mysql2 (LoadError)". On Windows XP with Ruby 2.0.0
I managed to get passed this issue by starting fresh. I followed these set of videos to set up Ruby, MySQL, and Rails on my Windows 7 x64 machine.
http://youtu.be/C5S7vjN6GLc
Worked like a gem, I'm rockin' and rollin' now.
I am using ruby and rails in window 7. I am create a basic blog application which is given by ruby and rails site
I have create db connection with mysql like this
development:
adapter: mysql2
encoding: utf8
database: message
username: root
password:
pool: 5
socket: /tmp/mysql.sock
timeout: 5000
Now i am getting error. I have search but not get so many ans but that is not related to window :(
Please help me, how can create connection with db
Gem::LoadError
Specified 'mysql2' for database adapter, but the gem is not loaded. Add `gem 'mysql2'` to your Gemfile.
Tthis
I'm having no end of trouble with my Rails 3 app's Mysql connection, though I have studied countless relevant threads. My error message:
C:/Ruby193/lib/ruby/gems/1.9.1/gems/mysql2-0.3.11-x86-mingw32/lib/mysql2/client.rb:44:in `connect': Can't connect to MySQL server on 'localhost' (10061) (Mysql2::Error)
(Before you flag this as a duplicate question, consider whether you can find another thread with pertinent advice I have not followed.)
My efforts thus far:
I have copied the libmysql.dll file from <mysql installation>/bin to <ruby installation>/bin.
I have the mysql2 gem in the bundle, and it was installed with the connector (--with-mysql-dir=C:/mysql-connector-c-noinstall-6.0.2-win32):
> bundle show mysql2
C:/Ruby193/lib/ruby/gems/1.9.1/gems/mysql2-0.3.11-x86-mingw32
I believe my database.yml file is configured correctly:
development:
adapter: mysql2
encoding: utf8
reconnect: false
database: tq_development
pool: 5
username: root
password: pinney
host: localhost
try replacing localhost with 127.0.0.1 (in workbench and yml)
Have you ran rake db:create yet on the project in question?
I agree with the above....Make sure it works with workbench or some other GUI tool and you can connect using the info the database.yml file.
If not....come back and give us another holler.
The Rails application I'm developing is running fine on my local machine (MAC). When I upload it to the server (Centos 6.2 Linux, with Rails 3.2.3 and Passenger installed), and try to start the application (by entering the URL into my browser), I get the following error message:
Ruby (Rack) application could not be started There appears to be a
database problem.
Your application's database configuration file might be written
incorrectly. Please check it and fix any errors.
The database server may not be running. Please check whether it's
running, and start it if it isn't.
Error message:
database configuration does not specify adapter (ActiveRecord::AdapterNotSpecified) Exception class:
ActiveRecord::AdapterNotSpecified
Note that when I ran rake db:create and rake db:migrate, both of these tasks ran fine and the databases are created and migrated properly.
Following is my database.yml file:
development:
adapter: mysql2
encoding: utf8
reconnect: false
database: acme_development
pool: 5
username: root
password: ***********
socket: /tmp/mysql.sock
test:
adapter: mysql2
encoding: utf8
reconnect: false
database: acme_test
pool: 5
username: root
password: *****************
socket: /tmp/mysql.sock
Any ideas?
Phusion Passenger defaults to the "production" environment, as documented. It looks like you assume "development". In that case, set "RackEnv development".
I am in windows 7 and I installed ruby 1.9.2p180 and MySQL 5.5.15 and mysql gem.
now how can I connect ruby to mysql ?
You can create a new rails app with mysql instead of the default sqlite by using:
rails new APPNAME -d mysql
Or the long form:
rails new APPNAME --database=mysql
You can then take a look at the generated file config/database.yml to see the settings used for mysql. You will need to set up your username, password and database in here. Don't forget that with mysql, you will need to create the database manually for each environment.
Sample config/database.yml:
development:
adapter: mysql
encoding: utf8
reconnect: false
database: test_database
pool: 20
username: root
password: root
host: localhost
socket: /var/run/mysqld/mysqld.sock
Just install mysql2 gem and when you want to create a new project run
rails new APPNAME --database=mysql