Определить имя таблицы Ruby on Rails 3.2.1

Question

У меня есть устаревшая база данных, с которой я подключаюсь через адаптер sqlserver. Одна из баз данных называется «SiteIndex_Players». Я сгенерировал следующую модель:

class SiteIndexPlayer < ActiveRecord::Base 
    set_table_name = "SiteIndex_Players" 
end 

Я также попытался:

class SiteIndexPlayer < ActiveRecord::Base 
    table_name = "SiteIndex_Players" 
end 

Оба пути, когда я бегу рельсы консоли rails c, я получаю это:

1.9.2-p290 :001 > SiteIndexPlayer.first 
SiteIndexPlayer Load (352.1ms) EXEC sp_executesql N'SELECT TOP (1) [site_index_players].* FROM [site_index_players]' 
ActiveRecord::StatementInvalid: TinyTds::Error: Invalid object name 'site_index_players'.: EXEC sp_executesql N'SELECT TOP (1) [site_index_players].* FROM [site_index_players]' 
from /home/ubuntu/.rvm/gems/ruby-1.9.2-p290/gems/activerecord-sqlserver-adapter-3.2.1/lib/active_record/connection_adapters/sqlserver/database_statements.rb:412:in `each' 
from /home/ubuntu/.rvm/gems/ruby-1.9.2-p290/gems/activerecord-sqlserver-adapter-3.2.1/lib/active_record/connection_adapters/sqlserver/database_statements.rb:412:in `handle_to_names_and_values_dblib' 
from /home/ubuntu/.rvm/gems/ruby-1.9.2-p290/gems/activerecord-sqlserver-adapter-3.2.1/lib/active_record/connection_adapters/sqlserver/database_statements.rb:401:in `handle_to_names_and_values' 
from /home/ubuntu/.rvm/gems/ruby-1.9.2-p290/gems/activerecord-sqlserver-adapter-3.2.1/lib/active_record/connection_adapters/sqlserver/database_statements.rb:373:in `_raw_select' 
from /home/ubuntu/.rvm/gems/ruby-1.9.2-p290/gems/activerecord-sqlserver-adapter-3.2.1/lib/active_record/connection_adapters/sqlserver/database_statements.rb:367:in `block in raw_select' 
from /home/ubuntu/.rvm/gems/ruby-1.9.2-p290/gems/activerecord-3.2.1/lib/active_record/connection_adapters/abstract_adapter.rb:280:in `block in log' 
from /home/ubuntu/.rvm/gems/ruby-1.9.2-p290/gems/activesupport-3.2.1/lib/active_support/notifications/instrumenter.rb:20:in `instrument' 
from /home/ubuntu/.rvm/gems/ruby-1.9.2-p290/gems/activerecord-3.2.1/lib/active_record/connection_adapters/abstract_adapter.rb:275:in `log' 
from /home/ubuntu/.rvm/gems/ruby-1.9.2-p290/gems/activerecord-sqlserver-adapter-3.2.1/lib/active_record/connection_adapters/sqlserver/database_statements.rb:367:in `raw_select' 
from /home/ubuntu/.rvm/gems/ruby-1.9.2-p290/gems/activerecord-sqlserver-adapter-3.2.1/lib/active_record/connection_adapters/sqlserver/database_statements.rb:350:in `do_exec_query' 
from /home/ubuntu/.rvm/gems/ruby-1.9.2-p290/gems/activerecord-sqlserver-adapter-3.2.1/lib/active_record/connection_adapters/sqlserver/database_statements.rb:24:in `exec_query' 
from /home/ubuntu/.rvm/gems/ruby-1.9.2-p290/gems/activerecord-sqlserver-adapter-3.2.1/lib/active_record/connection_adapters/sqlserver/database_statements.rb:293:in `select' 
from /home/ubuntu/.rvm/gems/ruby-1.9.2-p290/gems/activerecord-3.2.1/lib/active_record/connection_adapters/abstract/database_statements.rb:16:in `select_all' 
from /home/ubuntu/.rvm/gems/ruby-1.9.2-p290/gems/activerecord-3.2.1/lib/active_record/connection_adapters/abstract/query_cache.rb:63:in `select_all' 
from /home/ubuntu/.rvm/gems/ruby-1.9.2-p290/gems/activerecord-3.2.1/lib/active_record/querying.rb:38:in `block in find_by_sql' 
from /home/ubuntu/.rvm/gems/ruby-1.9.2-p290/gems/activerecord-3.2.1/lib/active_record/explain.rb:40:in `logging_query_plan' 
from /home/ubuntu/.rvm/gems/ruby-1.9.2-p290/gems/activerecord-3.2.1/lib/active_record/querying.rb:37:in `find_by_sql' 
from /home/ubuntu/.rvm/gems/ruby-1.9.2-p290/gems/activerecord-3.2.1/lib/active_record/relation.rb:170:in `exec_queries' 
from /home/ubuntu/.rvm/gems/ruby-1.9.2-p290/gems/activerecord-3.2.1/lib/active_record/relation.rb:159:in `block in to_a' 
from /home/ubuntu/.rvm/gems/ruby-1.9.2-p290/gems/activerecord-3.2.1/lib/active_record/explain.rb:33:in `logging_query_plan' 
from /home/ubuntu/.rvm/gems/ruby-1.9.2-p290/gems/activerecord-3.2.1/lib/active_record/relation.rb:158:in `to_a' 
from /home/ubuntu/.rvm/gems/ruby-1.9.2-p290/gems/activerecord-3.2.1/lib/active_record/relation/finder_methods.rb:377:in `find_first' 
from /home/ubuntu/.rvm/gems/ruby-1.9.2-p290/gems/activerecord-3.2.1/lib/active_record/relation/finder_methods.rb:122:in `first' 
from /home/ubuntu/.rvm/gems/ruby-1.9.2-p290/gems/activerecord-3.2.1/lib/active_record/querying.rb:5:in `first' 
from (irb):1 
from /home/ubuntu/.rvm/gems/ruby-1.9.2-p290/gems/railties-3.2.1/lib/rails/commands/console.rb:47:in `start' 
from /home/ubuntu/.rvm/gems/ruby-1.9.2-p290/gems/railties-3.2.1/lib/rails/commands/console.rb:8:in `start' 
from /home/ubuntu/.rvm/gems/ruby-1.9.2-p290/gems/railties-3.2.1/lib/rails/commands.rb:41:in `<top (required)>' 
from script/rails:6:in `require' 
from script/rails:6:in `<main>'1.9.2-p290 :002 > 

Имеет смысл, таблица «SiteIndex_Players», а не «site_index_players» (обратите внимание на недостающее подчеркивание).

Есть ли способ определить таблицу, чтобы иметь имя «SiteIndex_Players»?

Благодаря

Answer 1

Вместо

set_table_name = "SiteIndex_Players"

вам нужно

set_table_name "SiteIndex_Players"

без знака равенства.

См: http://apidock.com/rails/ActiveRecord/Base/set_table_name/class

Answer 2

Оставьте вне знак равенства:

class SiteIndexPlayer < ActiveRecord::Base 
    set_table_name "SiteIndex_Players" 
end 

Answer 3

поскольку Rails 3,2

set_table_name "the_name"  

устарела. Теперь следует использовать

self.table_name = "the_name"  

вместо этого.

Answer 4

В соответствии с Rails 4.0 documentation теперь вы используете формат self.table_name = "foo".

class SiteIndexPlayer < ActiveRecord::Base 
    self.table_name = "SiteIndex_Players" 
end