rails, postgres, devise. There is a third-party base with the Corporations table, I connected to it successfully. Objective: to create a User model that will be tied to a corporation, to allow the corporation to log in as a user. Decided to make the relation through has_one through.

user_corporation.rb:

class UserCorporation < ActiveRecord::Base belongs_to :user belongs_to :corporation end

user.rb:

 class User < ActiveRecord::Base devise :database_authenticatable, :rememberable, :trackable, :timeoutable, :authentication_keys => [:login] has_one :user_corporation has_one :corporation, :through => :user_corporation end

corporation.rb:

 class Corporation < OtherBaseconfiguration self.table_name = 'Corporations' has_one :user_corporation has_one :user, :through => :user_corporation end

migration:

 class CreateUserCorporations < ActiveRecord::Migration def change create_table :user_corporations do |t| t.belongs_to :user, index: true t.belongs_to :corporation, index: true t.timestamps null: false end end end

rake db:migrate executed, the table was created. In the console I try to get corporate from the user, I get an error:

 irb(main):006:0> @corpor.corporation ActiveRecord::StatementInvalid: PG::UndefinedTable: ОШИБКА: отношение "user_corporations" не существует LINE 5: WHERE a.attrelid = '"user_corporations"'::reg... ^ : SELECT a.attname, format_type(a.atttypid, a.atttypmod), pg_get_expr(d.adbin, d.adrelid), a.attnotnull, a.atttypid, a.atttypmod FROM pg_attribute a LEFT JOIN pg_attrdef d ON a.attrelid = d.adrelid AND a.attnum = d.adnum WHERE a.attrelid = '"user_corporations"'::regclass AND a.attnum > 0 AND NOT a.attisdropped ORDER BY a.attnum from /home/marson/.rvm/rubies/ruby-2.2.3/lib/ruby/gems/2.2.0/gems/activerecord-4.2.5/lib/active_record/connection_adapters/postgresql_adapter.rb:592:in `async_exec' from /home/marson/.rvm/rubies/ruby-2.2.3/lib/ruby/gems/2.2.0/gems/activerecord-4.2.5/lib/active_record/connection_adapters/postgresql_adapter.rb:592:in `block in exec_no_cache' from /home/marson/.rvm/rubies/ruby-2.2.3/lib/ruby/gems/2.2.0/gems/activerecord-4.2.5/lib/active_record/connection_adapters/abstract_adapter.rb:472:in `block in log' from /home/marson/.rvm/rubies/ruby-2.2.3/lib/ruby/gems/2.2.0/gems/activesupport-4.2.5/lib/active_support/notifications/instrumenter.rb:20:in `instrument' from /home/marson/.rvm/rubies/ruby-2.2.3/lib/ruby/gems/2.2.0/gems/activerecord-4.2.5/lib/active_record/connection_adapters/abstract_adapter.rb:466:in `log' from /home/marson/.rvm/rubies/ruby-2.2.3/lib/ruby/gems/2.2.0/gems/activerecord-4.2.5/lib/active_record/connection_adapters/postgresql_adapter.rb:592:in `exec_no_cache' from /home/marson/.rvm/rubies/ruby-2.2.3/lib/ruby/gems/2.2.0/gems/activerecord-4.2.5/lib/active_record/connection_adapters/postgresql_adapter.rb:584:in `execute_and_clear' from /home/marson/.rvm/rubies/ruby-2.2.3/lib/ruby/gems/2.2.0/gems/activerecord-4.2.5/lib/active_record/connection_adapters/postgresql/database_statements.rb:160:in `exec_query' from /home/marson/.rvm/rubies/ruby-2.2.3/lib/ruby/gems/2.2.0/gems/activerecord-4.2.5/lib/active_record/connection_adapters/postgresql_adapter.rb:733:in `column_definitions' from /home/marson/.rvm/rubies/ruby-2.2.3/lib/ruby/gems/2.2.0/gems/activerecord-4.2.5/lib/active_record/connection_adapters/postgresql/schema_statements.rb:186:in `columns' from /home/marson/.rvm/rubies/ruby-2.2.3/lib/ruby/gems/2.2.0/gems/activerecord-4.2.5/lib/active_record/connection_adapters/schema_cache.rb:43:in `columns' from /home/marson/.rvm/rubies/ruby-2.2.3/lib/ruby/gems/2.2.0/gems/activerecord-4.2.5/lib/active_record/connection_adapters/schema_cache.rb:49:in `columns_hash' from /home/marson/.rvm/rubies/ruby-2.2.3/lib/ruby/gems/2.2.0/gems/activerecord-4.2.5/lib/active_record/associations/association_scope.rb:85:in `column_for' from /home/marson/.rvm/rubies/ruby-2.2.3/lib/ruby/gems/2.2.0/gems/activerecord-4.2.5/lib/active_record/associations/association_scope.rb:94:in `bind' from /home/marson/.rvm/rubies/ruby-2.2.3/lib/ruby/gems/2.2.0/gems/activerecord-4.2.5/lib/active_record/associations/association_scope.rb:103:in `last_chain_scope' from /home/marson/.rvm/rubies/ruby-2.2.3/lib/ruby/gems/2.2.0/gems/activerecord-4.2.5/lib/active_record/associations/association_scope.rb:139:in `add_constraints' ... 13 levels... from /home/marson/.rvm/rubies/ruby-2.2.3/lib/ruby/gems/2.2.0/gems/railties-4.2.5/lib/rails/commands/console.rb:9:in `start' from /home/marson/.rvm/rubies/ruby-2.2.3/lib/ruby/gems/2.2.0/gems/railties-4.2.5/lib/rails/commands/commands_tasks.rb:68:in `console' from /home/marson/.rvm/rubies/ruby-2.2.3/lib/ruby/gems/2.2.0/gems/railties-4.2.5/lib/rails/commands/commands_tasks.rb:39:in `run_command!' from /home/marson/.rvm/rubies/ruby-2.2.3/lib/ruby/gems/2.2.0/gems/railties-4.2.5/lib/rails/commands.rb:17:in `<top (required)>' from /home/marson/.rvm/rubies/ruby-2.2.3/lib/ruby/gems/2.2.0/gems/activesupport-4.2.5/lib/active_support/dependencies.rb:274:in `require' from /home/marson/.rvm/rubies/ruby-2.2.3/lib/ruby/gems/2.2.0/gems/activesupport-4.2.5/lib/active_support/dependencies.rb:274:in `block in require' from /home/marson/.rvm/rubies/ruby-2.2.3/lib/ruby/gems/2.2.0/gems/activesupport-4.2.5/lib/active_support/dependencies.rb:240:in `load_dependency' from /home/marson/.rvm/rubies/ruby-2.2.3/lib/ruby/gems/2.2.0/gems/activesupport-4.2.5/lib/active_support/dependencies.rb:274:in `require' from /home/marson/rails_project/infinity/bin/rails:9:in `<top (required)>' from /home/marson/.rvm/rubies/ruby-2.2.3/lib/ruby/gems/2.2.0/gems/activesupport-4.2.5/lib/active_support/dependencies.rb:268:in `load' from /home/marson/.rvm/rubies/ruby-2.2.3/lib/ruby/gems/2.2.0/gems/activesupport-4.2.5/lib/active_support/dependencies.rb:268:in `block in load' from /home/marson/.rvm/rubies/ruby-2.2.3/lib/ruby/gems/2.2.0/gems/activesupport-4.2.5/lib/active_support/dependencies.rb:240:in `load_dependency' from /home/marson/.rvm/rubies/ruby-2.2.3/lib/ruby/gems/2.2.0/gems/activesupport-4.2.5/lib/active_support/dependencies.rb:268:in `load' from /home/marson/.rvm/rubies/ruby-2.2.3/lib/ruby/site_ruby/2.2.0/rubygems/core_ext/kernel_require.rb:54:in `require' from /home/marson/.rvm/rubies/ruby-2.2.3/lib/ruby/site_ruby/2.2.0/rubygems/core_ext/kernel_require.rb:54:in `require'

what am I doing wrong? in the same likeness, made the users_roles connection - everything works fine (the only difference is, there role has_many:users_roles )

  • Miracles do not happen. In rails db contents of this table requested? Just SQL. - D-side
  • @ D-side did not quite understand what the rails db? is it a file - Marsel.V
  • a kind of console, directly in the database. - D-side
  • @ D-side, app_development=> select * from user_corporations app_development-> ; id | user_id | corporation_id | created_at | updated_at ----+---------+----------------+------------+------------ (0 строк) app_development=> select * from user_corporations app_development-> ; id | user_id | corporation_id | created_at | updated_at ----+---------+----------------+------------+------------ (0 строк) app_development=> select * from user_corporations app_development-> ; id | user_id | corporation_id | created_at | updated_at ----+---------+----------------+------------+------------ (0 строк) - Marsel.V
  • That is, in the same database, this table is. Then I have no options, I can not play. - D-side

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