SQLite3迁移错误：重复列名？如何巧妙命名以避免冲突？
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本文共计121个文字，预计阅读时间需要1分钟。
我目前正关注Ruby on Rails教程，具体内容请见：https://www.railstutorial.org/book/updating_and_deleting_users
我目前正在关注 Ruby on Rails教程,我在 www.railstutorial.org/book/updating_and_deleting_users#sec-administrative_users每次运行bundle exec rake db：migrate我都会收到以下错误：SQLite3::SQLException: duplicate column name: remember_digest: ALTER TABLE "users" ADD "remember_digest" varchar/home/mclacs14/.rvm/gems/ruby-2.0.0-p481@railstutorial_rails_4_0/gems/sqlite3-1.3.9/lib/sqlite3/database.rb:91:in `initialize'
尝试将数据库迁移到version = 0
with命令：rake db：migrate VERSION = 0
然后跑rake db：migrate
本文共计121个文字，预计阅读时间需要1分钟。
我目前正关注Ruby on Rails教程，具体内容请见：https://www.railstutorial.org/book/updating_and_deleting_users
我目前正在关注 Ruby on Rails教程,我在 www.railstutorial.org/book/updating_and_deleting_users#sec-administrative_users每次运行bundle exec rake db：migrate我都会收到以下错误：SQLite3::SQLException: duplicate column name: remember_digest: ALTER TABLE "users" ADD "remember_digest" varchar/home/mclacs14/.rvm/gems/ruby-2.0.0-p481@railstutorial_rails_4_0/gems/sqlite3-1.3.9/lib/sqlite3/database.rb:91:in `initialize'
尝试将数据库迁移到version = 0
with命令：rake db：migrate VERSION = 0
然后跑rake db：migrate