Rails / Learn

[Rails] learn rack db:migrate

資料庫一直 Error？ 教你 Debug 套路

  • 第一步，check schema ，是否是你要的資料庫欄位？
  • 第二步，check migrate ，是否有按照步驟，建立你的資料庫管理方法？
  • 第三步，check migrate ， 符合你的欄位和邏輯，就可以刪除以下檔案
1
2
rm -rf schema.rb
rm -rf development.sqlite3
Read More
Follow

Recent

Categories

Tag Cloud

PostgreSQL apache2 api array async auto aws beautify-ruby benchmark bloomfilter bot branch bucket bug build build_stubbed centos chrome class collection command commit compass cookie count css databases db domain enum error es5 es6 eth exists extend factorybot factorygirl feeling figaro fixed font-size git godaddy hangzhou heroku hexo index install instance ios javascript jquery json lazy-loading learn lendbot lending length linode linux load-more logdown mariadb material-design meetup member migration modal mysql mysql@5.7 notify package-install pakogi performance poloniex pq preventDefault problm psql rails rake redis remote resource rollback routes rspec rss ruby ruby-on-rails s3 sass sass-convert screen scroll scss seo session setting share shell-script size spec speed stash stopPropagation string sublime symbol telegram test ubuntu url utf utf8mb4 version visual-studio wallet wget wordpress wpf xml youtube

Recommend Links

Categories

Tag Cloud

PostgreSQL apache2 api array async auto aws beautify-ruby benchmark bloomfilter bot branch bucket bug build build_stubbed centos chrome class collection command commit compass cookie count css databases db domain enum error es5 es6 eth exists extend factorybot factorygirl feeling figaro fixed font-size git godaddy hangzhou heroku hexo index install instance ios javascript jquery json lazy-loading learn lendbot lending length linode linux load-more logdown mariadb material-design meetup member migration modal mysql mysql@5.7 notify package-install pakogi performance poloniex pq preventDefault problm psql rails rake redis remote resource rollback routes rspec rss ruby ruby-on-rails s3 sass sass-convert screen scroll scss seo session setting share shell-script size spec speed stash stopPropagation string sublime symbol telegram test ubuntu url utf utf8mb4 version visual-studio wallet wget wordpress wpf xml youtube

Recommend Links

Your browser is out-of-date!

Update your browser to view this website correctly. Update my browser now

×