Rail6 db:migrate 失敗 - arguments 的數量錯誤（給定 1，預期為 0）

Question

我無法在 Windows 7 上的 Rail 6 中創建表（即成功運行 db:migrate）。

以防萬一我通過安裝 Ruby 2.6 開發包並執行“gem install rails”來完全重新安裝導軌，這對我來說安裝了 Rails 6.0.3.1

我創建了一個新項目，做的第一件事是生成一個“客戶”model，然后我在 db:migrate 命令失敗后立即運行命令“給出了錯誤的 arguments 編號”。 見下文。

C:\Apps\rails>cd cmdb

C:\Apps\rails\cmdb>rails generate model Customer string:name

      invoke  active_record
      create    db/migrate/20200525080817_create_customers.rb
      create    app/models/customer.rb
      invoke    test_unit
      create      test/models/customer_test.rb
      create      test/fixtures/customers.yml

C:\Apps\rails\cmdb>rails db:migrate

== 20200525080817 CreateCustomers: migrating ==================================
-- create_table(:customers)
rails aborted!
StandardError: An error has occurred, this and all later migrations canceled:

wrong number of arguments (given 1, expected 0)
C:/Apps/rails/cmdb/db/migrate/20200525080817_create_customers.rb:4:in `block in change'
C:/Apps/rails/cmdb/db/migrate/20200525080817_create_customers.rb:3:in `change'
bin/rails:4:in `require'
bin/rails:4:in `<main>'

Caused by:
ArgumentError: wrong number of arguments (given 1, expected 0)
C:/Apps/rails/cmdb/db/migrate/20200525080817_create_customers.rb:4:in `block in change'
C:/Apps/rails/cmdb/db/migrate/20200525080817_create_customers.rb:3:in `change'
bin/rails:4:in `require'
bin/rails:4:in `<main>'
Tasks: TOP => db:migrate
(See full trace by running task with --trace)

The migration.rb was generated and is shown below:-



class CreateCustomers < ActiveRecord::Migration[6.0]

  def change

    create_table :customers do |t|

      t.name :string

      t.timestamps
    end

  end

end

帶有完整跟蹤的重新運行粘貼在下面： -

C:\Apps\rails\cmdb>rails db:migrate --trace
** Invoke db:migrate (first_time)
** Invoke db:load_config (first_time)
** Invoke environment (first_time)
** Execute environment
** Execute db:load_config
** Execute db:migrate
== 20200525080817 CreateCustomers: migrating ==================================
-- create_table(:customers)
rails aborted!
StandardError: An error has occurred, this and all later migrations canceled:

wrong number of arguments (given 1, expected 0)
C:/Apps/rails/cmdb/db/migrate/20200525080817_create_customers.rb:4:in `block in change'
C:/Ruby26-x64/lib/ruby/gems/2.6.0/gems/activerecord-6.0.3.1/lib/active_record/connection_adapters/abstract/schema_statements.rb:309:in `create_table'
C:/Ruby26-x64/lib/ruby/gems/2.6.0/gems/activerecord-6.0.3.1/lib/active_record/migration.rb:890:in `block in method_missing'
C:/Ruby26-x64/lib/ruby/gems/2.6.0/gems/activerecord-6.0.3.1/lib/active_record/migration.rb:858:in `block in say_with_time'
C:/Ruby26-x64/lib/ruby/2.6.0/benchmark.rb:293:in `measure'
C:/Ruby26-x64/lib/ruby/gems/2.6.0/gems/activerecord-6.0.3.1/lib/active_record/migration.rb:858:in `say_with_time'
C:/Ruby26-x64/lib/ruby/gems/2.6.0/gems/activerecord-6.0.3.1/lib/active_record/migration.rb:879:in `method_missing'
C:/Apps/rails/cmdb/db/migrate/20200525080817_create_customers.rb:3:in `change'
C:/Ruby26-x64/lib/ruby/gems/2.6.0/gems/activerecord-6.0.3.1/lib/active_record/migration.rb:828:in `exec_migration'
C:/Ruby26-x64/lib/ruby/gems/2.6.0/gems/activerecord-6.0.3.1/lib/active_record/migration.rb:812:in `block (2 levels) in migrate'
C:/Ruby26-x64/lib/ruby/2.6.0/benchmark.rb:293:in `measure'
C:/Ruby26-x64/lib/ruby/gems/2.6.0/gems/activerecord-6.0.3.1/lib/active_record/migration.rb:811:in `block in migrate'
C:/Ruby26-x64/lib/ruby/gems/2.6.0/gems/activerecord-6.0.3.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:471:in `with_connection'

C:/Ruby26-x64/lib/ruby/gems/2.6.0/gems/activerecord-6.0.3.1/lib/active_record/migration.rb:810:in `migrate'
C:/Ruby26-x64/lib/ruby/gems/2.6.0/gems/activerecord-6.0.3.1/lib/active_record/migration.rb:1002:in `migrate'
C:/Ruby26-x64/lib/ruby/gems/2.6.0/gems/activerecord-6.0.3.1/lib/active_record/migration.rb:1310:in `block in execute_migration_in_transaction'
C:/Ruby26-x64/lib/ruby/gems/2.6.0/gems/activerecord-6.0.3.1/lib/active_record/migration.rb:1361:in `block in ddl_transaction'
C:/Ruby26-x64/lib/ruby/gems/2.6.0/gems/activerecord-6.0.3.1/lib/active_record/connection_adapters/abstract/database_statements.rb:280:in `block in tra
nsaction'
C:/Ruby26-x64/lib/ruby/gems/2.6.0/gems/activerecord-6.0.3.1/lib/active_record/connection_adapters/abstract/transaction.rb:280:in `block in within_new_
transaction'
C:/Ruby26-x64/lib/ruby/gems/2.6.0/gems/activesupport-6.0.3.1/lib/active_support/concurrency/load_interlock_aware_monitor.rb:26:in `block (2 levels) in
 synchronize'
C:/Ruby26-x64/lib/ruby/gems/2.6.0/gems/activesupport-6.0.3.1/lib/active_support/concurrency/load_interlock_aware_monitor.rb:25:in `handle_interrupt'
C:/Ruby26-x64/lib/ruby/gems/2.6.0/gems/activesupport-6.0.3.1/lib/active_support/concurrency/load_interlock_aware_monitor.rb:25:in `block in synchroniz
e'
C:/Ruby26-x64/lib/ruby/gems/2.6.0/gems/activesupport-6.0.3.1/lib/active_support/concurrency/load_interlock_aware_monitor.rb:21:in `handle_interrupt'
C:/Ruby26-x64/lib/ruby/gems/2.6.0/gems/activesupport-6.0.3.1/lib/active_support/concurrency/load_interlock_aware_monitor.rb:21:in `synchronize'
C:/Ruby26-x64/lib/ruby/gems/2.6.0/gems/activerecord-6.0.3.1/lib/active_record/connection_adapters/abstract/transaction.rb:278:in `within_new_transacti
on'
C:/Ruby26-x64/lib/ruby/gems/2.6.0/gems/activerecord-6.0.3.1/lib/active_record/connection_adapters/abstract/database_statements.rb:280:in `transaction'

C:/Ruby26-x64/lib/ruby/gems/2.6.0/gems/activerecord-6.0.3.1/lib/active_record/transactions.rb:212:in `transaction'
C:/Ruby26-x64/lib/ruby/gems/2.6.0/gems/activerecord-6.0.3.1/lib/active_record/migration.rb:1361:in `ddl_transaction'
C:/Ruby26-x64/lib/ruby/gems/2.6.0/gems/activerecord-6.0.3.1/lib/active_record/migration.rb:1309:in `execute_migration_in_transaction'
C:/Ruby26-x64/lib/ruby/gems/2.6.0/gems/activerecord-6.0.3.1/lib/active_record/migration.rb:1281:in `block in migrate_without_lock'
C:/Ruby26-x64/lib/ruby/gems/2.6.0/gems/activerecord-6.0.3.1/lib/active_record/migration.rb:1280:in `each'
C:/Ruby26-x64/lib/ruby/gems/2.6.0/gems/activerecord-6.0.3.1/lib/active_record/migration.rb:1280:in `migrate_without_lock'
C:/Ruby26-x64/lib/ruby/gems/2.6.0/gems/activerecord-6.0.3.1/lib/active_record/migration.rb:1231:in `migrate'
C:/Ruby26-x64/lib/ruby/gems/2.6.0/gems/activerecord-6.0.3.1/lib/active_record/migration.rb:1061:in `up'
C:/Ruby26-x64/lib/ruby/gems/2.6.0/gems/activerecord-6.0.3.1/lib/active_record/migration.rb:1036:in `migrate'
C:/Ruby26-x64/lib/ruby/gems/2.6.0/gems/activerecord-6.0.3.1/lib/active_record/tasks/database_tasks.rb:238:in `migrate'
C:/Ruby26-x64/lib/ruby/gems/2.6.0/gems/activerecord-6.0.3.1/lib/active_record/railties/databases.rake:86:in `block (3 levels) in <top (required)>'
C:/Ruby26-x64/lib/ruby/gems/2.6.0/gems/activerecord-6.0.3.1/lib/active_record/railties/databases.rake:84:in `each'
C:/Ruby26-x64/lib/ruby/gems/2.6.0/gems/activerecord-6.0.3.1/lib/active_record/railties/databases.rake:84:in `block (2 levels) in <top (required)>'
C:/Ruby26-x64/lib/ruby/gems/2.6.0/gems/rake-13.0.1/lib/rake/task.rb:281:in `block in execute'
C:/Ruby26-x64/lib/ruby/gems/2.6.0/gems/rake-13.0.1/lib/rake/task.rb:281:in `each'
C:/Ruby26-x64/lib/ruby/gems/2.6.0/gems/rake-13.0.1/lib/rake/task.rb:281:in `execute'
C:/Ruby26-x64/lib/ruby/gems/2.6.0/gems/rake-13.0.1/lib/rake/task.rb:219:in `block in invoke_with_call_chain'
C:/Ruby26-x64/lib/ruby/2.6.0/monitor.rb:235:in `mon_synchronize'
C:/Ruby26-x64/lib/ruby/gems/2.6.0/gems/rake-13.0.1/lib/rake/task.rb:199:in `invoke_with_call_chain'
C:/Ruby26-x64/lib/ruby/gems/2.6.0/gems/rake-13.0.1/lib/rake/task.rb:188:in `invoke'
C:/Ruby26-x64/lib/ruby/gems/2.6.0/gems/rake-13.0.1/lib/rake/application.rb:160:in `invoke_task'
C:/Ruby26-x64/lib/ruby/gems/2.6.0/gems/rake-13.0.1/lib/rake/application.rb:116:in `block (2 levels) in top_level'
C:/Ruby26-x64/lib/ruby/gems/2.6.0/gems/rake-13.0.1/lib/rake/application.rb:116:in `each'
C:/Ruby26-x64/lib/ruby/gems/2.6.0/gems/rake-13.0.1/lib/rake/application.rb:116:in `block in top_level'
C:/Ruby26-x64/lib/ruby/gems/2.6.0/gems/rake-13.0.1/lib/rake/application.rb:125:in `run_with_threads'
C:/Ruby26-x64/lib/ruby/gems/2.6.0/gems/rake-13.0.1/lib/rake/application.rb:110:in `top_level'
C:/Ruby26-x64/lib/ruby/gems/2.6.0/gems/railties-6.0.3.1/lib/rails/commands/rake/rake_command.rb:23:in `block in perform'
C:/Ruby26-x64/lib/ruby/gems/2.6.0/gems/rake-13.0.1/lib/rake/application.rb:186:in `standard_exception_handling'
C:/Ruby26-x64/lib/ruby/gems/2.6.0/gems/railties-6.0.3.1/lib/rails/commands/rake/rake_command.rb:20:in `perform'
C:/Ruby26-x64/lib/ruby/gems/2.6.0/gems/railties-6.0.3.1/lib/rails/command.rb:48:in `invoke'
C:/Ruby26-x64/lib/ruby/gems/2.6.0/gems/railties-6.0.3.1/lib/rails/commands.rb:18:in `<top (required)>'
bin/rails:4:in `require'
bin/rails:4:in `<main>'

Caused by:
ArgumentError: wrong number of arguments (given 1, expected 0)
C:/Apps/rails/cmdb/db/migrate/20200525080817_create_customers.rb:4:in `block in change'
C:/Ruby26-x64/lib/ruby/gems/2.6.0/gems/activerecord-6.0.3.1/lib/active_record/connection_adapters/abstract/schema_statements.rb:309:in `create_table'
C:/Ruby26-x64/lib/ruby/gems/2.6.0/gems/activerecord-6.0.3.1/lib/active_record/migration.rb:890:in `block in method_missing'
C:/Ruby26-x64/lib/ruby/gems/2.6.0/gems/activerecord-6.0.3.1/lib/active_record/migration.rb:858:in `block in say_with_time'
C:/Ruby26-x64/lib/ruby/2.6.0/benchmark.rb:293:in `measure'
C:/Ruby26-x64/lib/ruby/gems/2.6.0/gems/activerecord-6.0.3.1/lib/active_record/migration.rb:858:in `say_with_time'
C:/Ruby26-x64/lib/ruby/gems/2.6.0/gems/activerecord-6.0.3.1/lib/active_record/migration.rb:879:in `method_missing'
C:/Apps/rails/cmdb/db/migrate/20200525080817_create_customers.rb:3:in `change'
C:/Ruby26-x64/lib/ruby/gems/2.6.0/gems/activerecord-6.0.3.1/lib/active_record/migration.rb:828:in `exec_migration'
C:/Ruby26-x64/lib/ruby/gems/2.6.0/gems/activerecord-6.0.3.1/lib/active_record/migration.rb:812:in `block (2 levels) in migrate'
C:/Ruby26-x64/lib/ruby/2.6.0/benchmark.rb:293:in `measure'
C:/Ruby26-x64/lib/ruby/gems/2.6.0/gems/activerecord-6.0.3.1/lib/active_record/migration.rb:811:in `block in migrate'
C:/Ruby26-x64/lib/ruby/gems/2.6.0/gems/activerecord-6.0.3.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:471:in `with_connection'

C:/Ruby26-x64/lib/ruby/gems/2.6.0/gems/activerecord-6.0.3.1/lib/active_record/migration.rb:810:in `migrate'
C:/Ruby26-x64/lib/ruby/gems/2.6.0/gems/activerecord-6.0.3.1/lib/active_record/migration.rb:1002:in `migrate'
C:/Ruby26-x64/lib/ruby/gems/2.6.0/gems/activerecord-6.0.3.1/lib/active_record/migration.rb:1310:in `block in execute_migration_in_transaction'
C:/Ruby26-x64/lib/ruby/gems/2.6.0/gems/activerecord-6.0.3.1/lib/active_record/migration.rb:1361:in `block in ddl_transaction'
C:/Ruby26-x64/lib/ruby/gems/2.6.0/gems/activerecord-6.0.3.1/lib/active_record/connection_adapters/abstract/database_statements.rb:280:in `block in tra
nsaction'
C:/Ruby26-x64/lib/ruby/gems/2.6.0/gems/activerecord-6.0.3.1/lib/active_record/connection_adapters/abstract/transaction.rb:280:in `block in within_new_
transaction'
C:/Ruby26-x64/lib/ruby/gems/2.6.0/gems/activesupport-6.0.3.1/lib/active_support/concurrency/load_interlock_aware_monitor.rb:26:in `block (2 levels) in
 synchronize'
C:/Ruby26-x64/lib/ruby/gems/2.6.0/gems/activesupport-6.0.3.1/lib/active_support/concurrency/load_interlock_aware_monitor.rb:25:in `handle_interrupt'
C:/Ruby26-x64/lib/ruby/gems/2.6.0/gems/activesupport-6.0.3.1/lib/active_support/concurrency/load_interlock_aware_monitor.rb:25:in `block in synchroniz
e'
C:/Ruby26-x64/lib/ruby/gems/2.6.0/gems/activesupport-6.0.3.1/lib/active_support/concurrency/load_interlock_aware_monitor.rb:21:in `handle_interrupt'
C:/Ruby26-x64/lib/ruby/gems/2.6.0/gems/activesupport-6.0.3.1/lib/active_support/concurrency/load_interlock_aware_monitor.rb:21:in `synchronize'
C:/Ruby26-x64/lib/ruby/gems/2.6.0/gems/activerecord-6.0.3.1/lib/active_record/connection_adapters/abstract/transaction.rb:278:in `within_new_transacti
on'
C:/Ruby26-x64/lib/ruby/gems/2.6.0/gems/activerecord-6.0.3.1/lib/active_record/connection_adapters/abstract/database_statements.rb:280:in `transaction'

C:/Ruby26-x64/lib/ruby/gems/2.6.0/gems/activerecord-6.0.3.1/lib/active_record/transactions.rb:212:in `transaction'
C:/Ruby26-x64/lib/ruby/gems/2.6.0/gems/activerecord-6.0.3.1/lib/active_record/migration.rb:1361:in `ddl_transaction'
C:/Ruby26-x64/lib/ruby/gems/2.6.0/gems/activerecord-6.0.3.1/lib/active_record/migration.rb:1309:in `execute_migration_in_transaction'
C:/Ruby26-x64/lib/ruby/gems/2.6.0/gems/activerecord-6.0.3.1/lib/active_record/migration.rb:1281:in `block in migrate_without_lock'
C:/Ruby26-x64/lib/ruby/gems/2.6.0/gems/activerecord-6.0.3.1/lib/active_record/migration.rb:1280:in `each'
C:/Ruby26-x64/lib/ruby/gems/2.6.0/gems/activerecord-6.0.3.1/lib/active_record/migration.rb:1280:in `migrate_without_lock'
C:/Ruby26-x64/lib/ruby/gems/2.6.0/gems/activerecord-6.0.3.1/lib/active_record/migration.rb:1231:in `migrate'
C:/Ruby26-x64/lib/ruby/gems/2.6.0/gems/activerecord-6.0.3.1/lib/active_record/migration.rb:1061:in `up'
C:/Ruby26-x64/lib/ruby/gems/2.6.0/gems/activerecord-6.0.3.1/lib/active_record/migration.rb:1036:in `migrate'
C:/Ruby26-x64/lib/ruby/gems/2.6.0/gems/activerecord-6.0.3.1/lib/active_record/tasks/database_tasks.rb:238:in `migrate'
C:/Ruby26-x64/lib/ruby/gems/2.6.0/gems/activerecord-6.0.3.1/lib/active_record/railties/databases.rake:86:in `block (3 levels) in <top (required)>'
C:/Ruby26-x64/lib/ruby/gems/2.6.0/gems/activerecord-6.0.3.1/lib/active_record/railties/databases.rake:84:in `each'
C:/Ruby26-x64/lib/ruby/gems/2.6.0/gems/activerecord-6.0.3.1/lib/active_record/railties/databases.rake:84:in `block (2 levels) in <top (required)>'
C:/Ruby26-x64/lib/ruby/gems/2.6.0/gems/rake-13.0.1/lib/rake/task.rb:281:in `block in execute'
C:/Ruby26-x64/lib/ruby/gems/2.6.0/gems/rake-13.0.1/lib/rake/task.rb:281:in `each'
C:/Ruby26-x64/lib/ruby/gems/2.6.0/gems/rake-13.0.1/lib/rake/task.rb:281:in `execute'
C:/Ruby26-x64/lib/ruby/gems/2.6.0/gems/rake-13.0.1/lib/rake/task.rb:219:in `block in invoke_with_call_chain'
C:/Ruby26-x64/lib/ruby/2.6.0/monitor.rb:235:in `mon_synchronize'
C:/Ruby26-x64/lib/ruby/gems/2.6.0/gems/rake-13.0.1/lib/rake/task.rb:199:in `invoke_with_call_chain'
C:/Ruby26-x64/lib/ruby/gems/2.6.0/gems/rake-13.0.1/lib/rake/task.rb:188:in `invoke'
C:/Ruby26-x64/lib/ruby/gems/2.6.0/gems/rake-13.0.1/lib/rake/application.rb:160:in `invoke_task'
C:/Ruby26-x64/lib/ruby/gems/2.6.0/gems/rake-13.0.1/lib/rake/application.rb:116:in `block (2 levels) in top_level'
C:/Ruby26-x64/lib/ruby/gems/2.6.0/gems/rake-13.0.1/lib/rake/application.rb:116:in `each'
C:/Ruby26-x64/lib/ruby/gems/2.6.0/gems/rake-13.0.1/lib/rake/application.rb:116:in `block in top_level'
C:/Ruby26-x64/lib/ruby/gems/2.6.0/gems/rake-13.0.1/lib/rake/application.rb:125:in `run_with_threads'
C:/Ruby26-x64/lib/ruby/gems/2.6.0/gems/rake-13.0.1/lib/rake/application.rb:110:in `top_level'
C:/Ruby26-x64/lib/ruby/gems/2.6.0/gems/railties-6.0.3.1/lib/rails/commands/rake/rake_command.rb:23:in `block in perform'
C:/Ruby26-x64/lib/ruby/gems/2.6.0/gems/rake-13.0.1/lib/rake/application.rb:186:in `standard_exception_handling'
C:/Ruby26-x64/lib/ruby/gems/2.6.0/gems/railties-6.0.3.1/lib/rails/commands/rake/rake_command.rb:20:in `perform'
C:/Ruby26-x64/lib/ruby/gems/2.6.0/gems/railties-6.0.3.1/lib/rails/command.rb:48:in `invoke'
C:/Ruby26-x64/lib/ruby/gems/2.6.0/gems/railties-6.0.3.1/lib/rails/commands.rb:18:in `<top (required)>'
bin/rails:4:in `require'
bin/rails:4:in `<main>'
Tasks: TOP => db:migrate

C:\Apps\rails\cmdb>

Answer 1

如果其他人想知道為什么會這樣：我生成了一個與我的 model 同名的遷移，並開始出現TypeError: superclass mismatch for class MyCustomClassName錯誤。 然后我將遷移 class 重命名為CreateMyCustomClassNameTable ，但將其文件名保留為相同的20201217095257_my_custom_class_name.rb ，這會產生ArgumentError: wrong number of arguments (given 2, expected 0..1)錯誤。 將文件重命名為20201217095257_create_my_custom_class_name_table.rb為我解決了這個問題。

Answer 2

您錯誤地生成了遷移。

列名在前，數據類型緊隨其后。 將以下命令與您使用的命令進行比較。

rails generate model Customer name:string

您可以通過運行快速修復它

rails destroy model Customer

然后使用我上面共享的generate命令重新生成遷移。

Answer 3

我最近遇到了類似的問題，以下是我得到的錯誤：

-- create_table(:workers)
rails aborted!
StandardError: An error has occurred, all later migrations canceled:

wrong number of arguments (given 1, expected 0)
/home/wint3r/Learn/RubyOnRails/AssetManager/db/migrate/20210516062205_create_workers.rb:9:in `block in change'
/home/wint3r/Learn/RubyOnRails/AssetManager/db/migrate/20210516062205_create_workers.rb:3:in `change'
/home/wint3r/Learn/RubyOnRails/AssetManager/bin/rails:5:in `<top (required)>'
/home/wint3r/Learn/RubyOnRails/AssetManager/bin/spring:10:in `block in <top (required)>'
/home/wint3r/Learn/RubyOnRails/AssetManager/bin/spring:7:in `<top (required)>'

Caused by:
ArgumentError: wrong number of arguments (given 1, expected 0)
/home/wint3r/Learn/RubyOnRails/AssetManager/db/migrate/20210516062205_create_workers.rb:9:in `block in change'
/home/wint3r/Learn/RubyOnRails/AssetManager/db/migrate/20210516062205_create_workers.rb:3:in `change'
/home/wint3r/Learn/RubyOnRails/AssetManager/bin/rails:5:in `<top (required)>'
/home/wint3r/Learn/RubyOnRails/AssetManager/bin/spring:10:in `block in <top (required)>'
/home/wint3r/Learn/RubyOnRails/AssetManager/bin/spring:7:in `<top (required)>'
Tasks: TOP => db:migrate

在我的情況下，出現問題是因為我嘗試將 t.timestamps 用於自定義日期時間字段“emp_joining_date”，我通過將類型從 t.timestamps 更改為 t.datetime 來解決它