Error About Rake and Migration

Rails
1

Dear Ruby C.:

I was trying to create a Schema with this command:
( I am using WINDOWS for my gem 0.9.0 and rails 1.2.1. MySQL5 is already
ON and I already installed RAKE )

~~~~~~~~~~~~~~~~~~~~~~*~~~~~~~~~~*~
C:\ruby\project\ruby script/generate model Author

exists app/models/
exists test/unit/
exists test/fixtures/
create app/models/author.rb
create test/unit/author_test.rb
create test/fixtures/authors.yml
create db/migrate
create db/migrate/001_create_authors.rb

C:\ruby\project_
~~~~~~~~~~~~~~~~~~~~~~~*~~~~~~~~~~*~

Then I made editing in 001_create_authors.rb like this

~~~~~~~~~~~~~~~~~~~~~~~*~~~~~~~~~~*~
class CreateAuthors < ActiveRecord::Migration
def self.up
create_table :authors do |t|
t.column :first_name, :string
t.column :last_name, :string
end
end

def self.down
drop_table :authors
end
end
~~~~~~~~~~~~~~~~~~~~~~~*~~~~~~~~~~*~

After That I made command like this :

~~~~~~~~~~~~~~~~~~~~~~~*~~~~~~~~~~*~

C:\ruby\project\rake db:migrate
(in C:/ruby/project)
rake aborted!
#42000Unknown database ‘project_development’

(See full trace by running task with --trace)

C:\ruby\project>_

~~~~~~~~~~~~~~~~~~~~~~~*~~~~~~~~~~*~

Please tell me what was happened? and how I can handle this error. I
need your kind respond soon. Thank you for helping before.

Respectfully,

Malioboro

2

Please tell me what was happened? and how I can handle this error. I
need your kind respond soon. Thank you for helping before.

Respectfully,

Malioboro

Assuming your rails app is named “project”, by default rails will look
for a database called project_development in which to do development
work. If you have no created this database, you need to do so because
you can perform any migrations.

-Drew

3

Drew O. wrote:

Please tell me what was happened? and how I can handle this error. I
need your kind respond soon. Thank you for helping before.

Respectfully,

Malioboro

Assuming your rails app is named “project”, by default rails will look
for a database called project_development in which to do development
work. If you have no created this database, you need to do so because
you can perform any migrations.

-Drew

I need to stop drinking Red Bull at work. You need to create this
database before you can perform any migrations.

-Drew

4

Visit Indonesia 2008 wrote:

So, I have to create database in mySQL Server using project_development.
I hope my statement is not false.

Thank you so much, I am sorry because I am new in Ruby on Rails. I need
your support and advice. Thank you.

Malioboro

Yes you will need to create database “project_development”. In your case
you will need to check whether database is present or not. Go to MySQL
command line client and type “show databses;”.

5

So, I have to create database in mySQL Server using project_development.
I hope my statement is not false.

Thank you so much, I am sorry because I am new in Ruby on Rails. I need
your support and advice. Thank you.

Malioboro