我正在尝试初始化一个不会改变的表记录。
我将记录放在此permissionrank.yml文件中：
player:
id: 1
label: Player
badge: NIL
bronze helper:
id: 2
label: Bronze Helper
badge: STF_HELP_BRZ
silver helper:
id: 3
label: Silver Helper
badge: STF_HELP_SLV
gold helper:
id: 4
label: Gold Helper
badge: STF_HELP_GLD
moderator:
id: 5
label: Moderator
badge: STF_MOD
senior moderator:
id: 6
label: Moderator
badge: STF_MOD
administrator:
id: 7
label: Administrator
badge: STF_ADM
senior administrator:
id: 8
label: Administrator
badge: STF_ADM
这是我的迁移：
require 'active_record/fixtures'
class LoadPermissionRanks < ActiveRecord::Migration
def self.up
down
directory = File.join(File.dirname(__FILE__), "init_data")
Fixtures.create_fixtures(directory, "permissionrank")
end
def self.down
PermissionRank.delete_all
end
end
当我运行迁移时，我得到了这个：
uninitialized constant LoadPermissionRanks::Fixtures/home/guilmon/Documents/A2 Computing Project/Software Development/Client/db/migrate/20130829051940_load_permission_ranks.rb:7:in `up'
/home/guilmon/.rvm/gems/ruby-2.0.0-p247/gems/activerecord-4.0.0/lib/active_record/migration.rb:534:in `up'
/home/guilmon/.rvm/gems/ruby-2.0.0-p247/gems/activerecord-4.0.0/lib/active_record/migration.rb:574:in `exec_migration'
/home/guilmon/.rvm/gems/ruby-2.0.0-p247/gems/activerecord-4.0.0/lib/active_record/migration.rb:555:in `block (2 levels) in migrate'
/home/guilmon/.rvm/gems/ruby-2.0.0-p247/gems/activerecord-4.0.0/lib/active_record/migration.rb:554:in `block in migrate'
/home/guilmon/.rvm/gems/ruby-2.0.0-p247/gems/activerecord-4.0.0/lib/active_record/connection_adapters/abstract/connection_pool.rb:294:in `with_connection'
/home/guilmon/.rvm/gems/ruby-2.0.0-p247/gems/activerecord-4.0.0/lib/active_record/migration.rb:553:in `migrate'
/home/guilmon/.rvm/gems/ruby-2.0.0-p247/gems/activerecord-4.0.0/lib/active_record/migration.rb:709:in `migrate'
/home/guilmon/.rvm/gems/ruby-2.0.0-p247/gems/activerecord-4.0.0/lib/active_record/migration.rb:959:in `block in execute_migration_in_transaction'
/home/guilmon/.rvm/gems/ruby-2.0.0-p247/gems/activerecord-4.0.0/lib/active_record/migration.rb:1005:in `block in ddl_transaction'
/home/guilmon/.rvm/gems/ruby-2.0.0-p247/gems/activerecord-4.0.0/lib/active_record/connection_adapters/abstract/database_statements.rb:202:in `block in transaction'
/home/guilmon/.rvm/gems/ruby-2.0.0-p247/gems/activerecord-4.0.0/lib/active_record/connection_adapters/abstract/database_statements.rb:210:in `within_new_transaction'
/home/guilmon/.rvm/gems/ruby-2.0.0-p247/gems/activerecord-4.0.0/lib/active_record/connection_adapters/abstract/database_statements.rb:202:in `transaction'
/home/guilmon/.rvm/gems/ruby-2.0.0-p247/gems/activerecord-4.0.0/lib/active_record/transactions.rb:209:in `transaction'
/home/guilmon/.rvm/gems/ruby-2.0.0-p247/gems/activerecord-4.0.0/lib/active_record/migration.rb:1005:in `ddl_transaction'
/home/guilmon/.rvm/gems/ruby-2.0.0-p247/gems/activerecord-4.0.0/lib/active_record/migration.rb:958:in `execute_migration_in_transaction'
/home/guilmon/.rvm/gems/ruby-2.0.0-p247/gems/activerecord-4.0.0/lib/active_record/migration.rb:920:in `block in migrate'
/home/guilmon/.rvm/gems/ruby-2.0.0-p247/gems/activerecord-4.0.0/lib/active_record/migration.rb:916:in `each'
/home/guilmon/.rvm/gems/ruby-2.0.0-p247/gems/activerecord-4.0.0/lib/active_record/migration.rb:916:in `migrate'
/home/guilmon/.rvm/gems/ruby-2.0.0-p247/gems/activerecord-4.0.0/lib/active_record/migration.rb:764:in `up'
/home/guilmon/.rvm/gems/ruby-2.0.0-p247/gems/activerecord-4.0.0/lib/active_record/migration.rb:742:in `migrate'
/home/guilmon/.rvm/gems/ruby-2.0.0-p247/gems/activerecord-4.0.0/lib/active_record/railties/databases.rake:42:in `block (2 levels) in <top (required)>'
/home/guilmon/.rvm/gems/ruby-2.0.0-p247/bin/ruby_noexec_wrapper:14:in `eval'
/home/guilmon/.rvm/gems/ruby-2.0.0-p247/bin/ruby_noexec_wrapper:14:in `<main>'
Tasks: TOP => db:migrate
有没有其他方法可以做到这一点？难道我做错了什么？ 我正在使用Rails 4和Ruby 2.0.0