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我想在Ruby中設置Sequel。我去了http://sequel.rubyforge.org/rdoc/files/doc/migration_rdoc.html並創建了我的第一次遷移。然後我將Postgres.app作爲我的服務器運行,並創建了一個已創建的Qsario。問題是當我嘗試使用我的移民來創建數據庫字段:遷移失敗,錯誤:NoMethodError:未定義的方法`遷移'
$sequel -E -m . postgres://localhost/Qsario
I, [2012-07-08T13:53:49.659795 #6258] INFO -- : (0.000374s) SET standard_conforming_strings = ON
I, [2012-07-08T13:53:49.660113 #6258] INFO -- : (0.000153s) SET client_min_messages = 'WARNING'
I, [2012-07-08T13:53:49.660359 #6258] INFO -- : (0.000163s) SET DateStyle = 'ISO'
I, [2012-07-08T13:53:49.664679 #6258] INFO -- : (0.000952s) SELECT NULL FROM "schema_info" LIMIT 1
I, [2012-07-08T13:53:49.665179 #6258] INFO -- : (0.000214s) SELECT * FROM "schema_info" LIMIT 1
I, [2012-07-08T13:53:49.665544 #6258] INFO -- : (0.000166s) SELECT 1 AS "one" FROM "schema_info" LIMIT 1
I, [2012-07-08T13:53:49.666100 #6258] INFO -- : (0.000325s) SELECT COUNT(*) AS "count" FROM "schema_info" LIMIT 1
I, [2012-07-08T13:53:49.666461 #6258] INFO -- : (0.000179s) SELECT "version" FROM "schema_info" LIMIT 1
Error: NoMethodError: undefined method `Migration' for Sequel:Module/Users/me/Projects/Qsario/db/migrate/001_create_user_and_file_tables.rb:3:in `<top (required)>'
這裏的001_create_user_and_file_tables.rb的樣子:
Sequel.Migration do
no_transaction
change do
create_table(:users) do
primary_key :id
String :username, :unique=>true
String :email, :unique=>true
String :password_hash
String :password_salt
DateTime :joined_at, :null => false
FalseClass :banned, default=>false
String :role, default=>"user"
end
create_table(:files) do
primary_key :id
foreign_key :user_id, :users
String :filename, :null => false
DateTime :uploaded_at, :null => false
end
create_table(:users_files) do
primary_key :id
foreign_key :user_id, :users
foreign_key :file_id, :files
end
end
end
注意,沒有Rake文件之類的東西,因爲尚未我仍然試圖讓事情成立。我沒有使用Rails。這樣.rb文件是目錄中唯一的東西。
你想['Sequal.migration',不'Sequel.Migration'(http://sequel.rubyforge.org/rdoc/files/doc/migration_rdoc.html)。 – 2012-07-08 21:54:44
Sequal?這不會有多大的幫助:)但是,Sequel.migration DID可以工作,一旦我將default更改爲:default。謝謝! – Qsario 2012-07-08 22:36:47
一個拼寫mistaek值得另一個:) – 2012-07-08 22:47:18