タグrails-migrations - これはページ6です - GeneraCodice

Rails ActiveRecord::Migration what is the difference between index: true and add_index?

https://www.generacodice.com/jp/articolo/10841746/rails-activerecord-migration-what-is-the-difference-between-index-true-and-add-index
  migration  -  activerecord  -  rails-migrations
StackOverflow StackOverflow

Rails：移行後に初期イザーを実行します

https://www.generacodice.com/jp/articolo/10787779/rails-移行後に初期イザーを実行します
  ruby-on-rails  -  rails-migrations
StackOverflow StackOverflow

How to update attribute from not null to allow null in rails migrations

https://www.generacodice.com/jp/articolo/10712040/how-to-update-attribute-from-not-null-to-allow-null-in-rails-migrations
  ruby-on-rails  -  rails-migrations
StackOverflow StackOverflow

How to fix ActiveRecord::DangerousAttributeError when checking pending migration in RSpec spec_helper?

https://www.generacodice.com/jp/articolo/10645056/how-to-fix-activerecord-dangerousattributeerror-when-checking-pending-migration-in-rspec-spec-helper
  activerecord  -  rspec  -  rails-migrations  -  ruby-on-rails-4
StackOverflow StackOverflow

Rails 4 concurrent database indexes

https://www.generacodice.com/jp/articolo/10604163/rails-4-concurrent-database-indexes
  ruby-on-rails  -  postgresql  -  database-indexes  -  concurrency  -  rails-migrations
StackOverflow StackOverflow

Rails migration to drop database (only if it hasn't already been dropped)

https://www.generacodice.com/jp/articolo/10508382/rails-migration-to-drop-database-only-if-it-hasn-t-already-been-dropped
  ruby  -  ruby-on-rails  -  rails-migrations
StackOverflow StackOverflow

Engine Yard rollback a migration

https://www.generacodice.com/jp/articolo/10264731/engine-yard-rollback-a-migration
  ruby-on-rails  -  rails-migrations  -  ruby-on-rails-3  -  engineyard
StackOverflow StackOverflow

How does db:schema:load affect future db:migrate actions

https://www.generacodice.com/jp/articolo/10024596/how-does-db-schema-load-affect-future-db-migrate-actions
  ruby-on-rails  -  database-migration  -  rails-migrations
StackOverflow StackOverflow

Migrations were shown as down but already migrated?

https://www.generacodice.com/jp/articolo/9924699/migrations-were-shown-as-down-but-already-migrated
  ruby-on-rails  -  rails-migrations  -  ruby-on-rails-3
StackOverflow StackOverflow

Added Bio field to 'edit profile' - created migration but then what to add to model?

https://www.generacodice.com/jp/articolo/9841410/added-bio-field-to-edit-profile-created-migration-but-then-what-to-add-to-model
  database  -  ruby-on-rails  -  rails-migrations  -  ruby-on-rails-4
StackOverflow StackOverflow
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