Rails database.yml不接受ERB [英] rails database.yml not accepting ERB
问题描述
在我的database.yml中,我有:
In my database.yml, I have:
staging:
adapter: <%= ENV['DATABASE_ADAPTER'] %>
encoding: <%= ENV['DATABASE_ENCODING'] %>
database: <%= ENV['DATABASE'] %>
host: <%= ENV['DATABASE_HOST'] %>
port: <%= ENV['DATABASE_PORT'].to_i %>
pool: <%= ENV['DATABASE_POOL'].to_i %>
username: <%= ENV['DATABASE_USERNAME'] %>
password: <%= ENV['DATABASE_PASSWORD'] %>
但是,在实际引导puma时,它不会读取ERB部分:
However, it does not read the ERB part when actually booting puma:
/usr/local/lib/ruby/gems/2.1.0/gems/activesupport-4.2.1/lib/active_support/dependencies.rb:274:in
`require': Could not load 'active_record/connection_adapters/<%= ENV['DATABASE_ADAPTER'] %>_adapter'.
Make sure that the adapter in config/database.yml is valid. If you use an adapter other than 'mysql', 'mysql2', 'postgresql' or 'sqlite3'
add the necessary adapter gem to the Gemfile. (LoadError)
这没有任何意义,因为在Rails代码中加载了数据库配置:
which makes no sense, since in the Rails code to load the database configuration:
def database_configuration
yaml = Pathname.new(paths["config/database"].existent.first || "")
config = if yaml.exist?
require "yaml"
require "erb"
YAML.load(ERB.new(yaml.read).result) || {}
elsif ENV['DATABASE_URL']
# Value from ENV['DATABASE_URL'] is set to default database connection
# by Active Record.
{}
else
raise "Could not load database configuration. No such file - #{yaml}"
end
config
rescue Psych::SyntaxError => e
raise "YAML syntax error occurred while parsing #{paths["config/database"].first}. " \
"Please note that YAML must be consistently indented using spaces. Tabs are not allowed. " \
"Error: #{e.message}"
rescue => e
raise e, "Cannot load `Rails.application.database_configuration`:\n#{e.message}", e.backtrace
end
(摘自Rails 4.2稳定代码,我正在运行4.2.1)
(taken from the Rails 4.2 stable code, I'm running 4.2.1)
我绝对困惑为什么这不起作用,有什么主意吗?
I'm absolutely baffled why this isn't working, any ideas?
推荐答案
我刚刚遇到了同样的事情,并且发现了您的帖子.我一直在遵循一个教程,该教程让我创建一个包含以下代码的puma.conf文件:
I just experienced the same thing, and came across your post. I had been following a tutorial that had me create a puma.conf file that contained the code below:
ActiveRecord::Base.establish_connection( YAML.load_file( "#{app_dir}/config/database.yml" )[rails_env])
我修改为以下内容,并且一切正常:
I modified to the following, and everything worked as expected:
require 'erb'
ActiveRecord::Base.establish_connection( YAML.load( ERB.new( File.read( "#{app_dir}/config/database.yml" )).result)[rails_env])
这篇关于Rails database.yml不接受ERB的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持IT屋!