Rails 未在生产环境中解析数据库 URL答案

【问题标题】：Rails not parsing database URL on productionRails 未在生产环境中解析数据库 URL
【发布时间】：2017-06-12 08:30:33
【问题描述】：

我有以下 database.yml 文件：

default: &default
  adapter: postgresql
  encoding: unicode
  pool: <%= ENV.fetch("RAILS_MAX_THREADS") { 4 } %>

development:
  <<: *default
  database: backoffice_authentication_development

test:
  <<: *default
  database: backoffice_authentication_test

production:
  <<: *default
  url: <%= ENV['DATABASE_URL'] %>

我在生产中有一个类似于 postgresql://user:passwrd@backoffice.xxxxxxxx.xxxxx.rds.amazonaws.com/backoffice_api 的 DATABASE_URL

当我尝试在生产环境中启动我的应用时，我收到此错误：

2017-06-12T08:23:37.054417906Z Initialising & migrating DB
2017-06-12T08:23:38.381585952Z rake aborted!
2017-06-12T08:23:38.381700163Z URI::InvalidURIError: bad URI(is not URI?): 'postgresql://user:passwrd@backoffice.xxxxxxxx.xxxxx.rds.amazonaws.com/backoffice_api'

在其他一些异常行之后：

2017-06-12T08:23:38.382052715Z /usr/local/bundle/gems/activesupport-5.0.2/lib/active_support/dependencies.rb:293:in `require'
2017-06-12T08:23:38.382055762Z /usr/local/bundle/gems/activerecord-5.0.2/lib/active_record/tasks/mysql_database_tasks.rb:6:in `<class:MySQLDatabaseTasks>'
2017-06-12T08:23:38.382058788Z /usr/local/bundle/gems/activerecord-5.0.2/lib/active_record/tasks/mysql_database_tasks.rb:3:in `<module:Tasks>'
2017-06-12T08:23:38.382061748Z /usr/local/bundle/gems/activerecord-5.0.2/lib/active_record/tasks/mysql_database_tasks.rb:2:in `<module:ActiveRecord>'
2017-06-12T08:23:38.382064754Z /usr/local/bundle/gems/activerecord-5.0.2/lib/active_record/tasks/mysql_database_tasks.rb:1:in `<top (required)>'
2017-06-12T08:23:38.382067605Z /usr/local/bundle/gems/activesupport-5.0.2/lib/active_support/dependencies.rb:293:in `require'
2017-06-12T08:23:38.382070389Z /usr/local/bundle/gems/activesupport-5.0.2/lib/active_support/dependencies.rb:293:in `block in require'
2017-06-12T08:23:38.382073112Z /usr/local/bundle/gems/activesupport-5.0.2/lib/active_support/dependencies.rb:259:in `load_dependency'

我显然没有使用 MySQL，如果在我的机器上使用该 URL，它可以工作！有什么问题？

【问题讨论】：

标签： ruby-on-rails activerecord ruby-on-rails-5 amazon-rds

【解决方案1】：

试试

url: <%= URI.encode(ENV['DATABASE_URL'] )%>

【讨论】：