Heroku上的act-as-taggable-on

我一直在我的开发应用程序中使用act-as-taggable-on进行标记，但是当我将它推送到Heroku时，我收到了一个令人讨厌的错误：

ActionView::TemplateError (PGError: ERROR: relation "tags" does not exist : SELECT tags.*, taggings.tags_count AS count FROM "tags" JOIN (SELECT taggings.tag_id, COUNT(taggings.tag_id) AS tags_count FROM "taggings" INNER JOIN offers ON offers.id = taggings.taggable_id WHERE (taggings.taggable_type = E'Offer' AND taggings.context = E'tags') GROUP BY taggings.tag_id HAVING COUNT(*) > 0 AND COUNT(taggings.tag_id) > 0) AS taggings ON taggings.tag_id = tags.id ) on line #29 of app/views/offers/index.html.erb: 26: 
 27: <!-- 
Popular Tags
 28: 29:  30:  :tag, :id => tag.name }, :class => css_class %> 31:  --> 32: app/views/offers/index.html.erb:29 app/controllers/offers_controller.rb:11:in `index' /home/heroku_rack/lib/static_assets.rb:9:in `call' /home/heroku_rack/lib/last_access.rb:15:in `call' /home/heroku_rack/lib/date_header.rb:14:in `call' thin (1.2.6) lib/thin/connection.rb:76:in `pre_process' thin (1.2.6) lib/thin/connection.rb:74:in `catch' thin (1.2.6) lib/thin/connection.rb:74:in `pre_process' thin (1.2.6) lib/thin/connection.rb:57:in `process' thin (1.2.6) lib/thin/connection.rb:42:in `receive_data' eventmachine (0.12.10) lib/eventmachine.rb:256:in `run_machine' eventmachine (0.12.10) lib/eventmachine.rb:256:in `run' thin (1.2.6) lib/thin/backends/base.rb:57:in `start' thin (1.2.6) lib/thin/server.rb:156:in `start' thin (1.2.6) lib/thin/controllers/controller.rb:80:in `start' thin (1.2.6) lib/thin/runner.rb:177:in `send' thin (1.2.6) lib/thin/runner.rb:177:in `run_command' thin (1.2.6) lib/thin/runner.rb:143:in `run!' thin (1.2.6) bin/thin:6 /usr/ruby1.8.7/bin/thin:19:in `load' /usr/ruby1.8.7/bin/thin:19 

有谁知道如何让插件在Heroku的PostgreSQL上运行？

谢谢！

Answer 1

以下将镜像你的dev DB到heroku上的生产：heroku rake db：push

但你真正需要（ed）做的是运行迁移heroku rake db：migrate

祝好运！

Answer 2

我不知道为什么，但是db：migrate对我来说不起作用，而是我做db：schema：加载，现在工作顺利。 试试看。