耙任务不适用于 postgresql 和 sinatra-activerecord答案

【问题标题】：Rake task not working with postgresql and sinatra-activerecord耙任务不适用于 postgresql 和 sinatra-activerecord
【发布时间】：2013-06-18 14:02:50
【问题描述】：

我试图在 Kubuntu 12.04 中使用 ruby 和 sinatra 在本地设置 facebook 应用程序。我在我的 gemfile 中包含了以下 gem。我的系统中安装了 postgresql，我能够运行 postgresql 命令行并以 createdb、创建表等方式运行基本命令。

gem "sinatra"
gem "koala"
gem "json", "1.5.5"
gem "httparty"
gem "thin"
gem "rack", "1.3.10"
gem "pg"
gem "activerecord"
gem "sinatra-activerecord"

并在我的 app.rb 文件中添加了这些文件，

require "rubygems"
require "sinatra"
require "sinatra/activerecord"
require "koala"
require "./config/environment" #database configuration

跑步

rake -T

在我的终端中给了我以下错误。

rake aborted!
(<unknown>): found character that cannot start any token while scanning for the next token at line 2 column 1
/var/lib/gems/1.9.1/gems/sinatra-activerecord-1.2.2/lib/sinatra/activerecord.rb:39:in `database_file='
/var/lib/gems/1.9.1/gems/sinatra-1.3.3/lib/sinatra/base.rb:1033:in `set'
/var/lib/gems/1.9.1/gems/sinatra-activerecord-1.2.2/lib/sinatra/activerecord.rb:50:in `registered'
/var/lib/gems/1.9.1/gems/sinatra-1.3.3/lib/sinatra/base.rb:1317:in `block in register'
/var/lib/gems/1.9.1/gems/sinatra-1.3.3/lib/sinatra/base.rb:1315:in `each'
/var/lib/gems/1.9.1/gems/sinatra-1.3.3/lib/sinatra/base.rb:1315:in `register'
/var/lib/gems/1.9.1/gems/sinatra-1.3.3/lib/sinatra/base.rb:1648:in `register'
/var/lib/gems/1.9.1/gems/sinatra-1.3.3/lib/sinatra/base.rb:1688:in `register'
/var/lib/gems/1.9.1/gems/sinatra-activerecord-1.2.2/lib/sinatra/activerecord.rb:76:in `<module:Sinatra>'
/var/lib/gems/1.9.1/gems/sinatra-activerecord-1.2.2/lib/sinatra/activerecord.rb:6:in `<top (required)>'
/home/nitin/facebook_app/guarded-gorge-3234/app.rb:3:in `<top (required)>'
/home/nitin/facebook_app/guarded-gorge-3234/Rakefile:1:in `<top (required)>'
/var/lib/gems/1.9.1/gems/rake-10.0.4/lib/rake/rake_module.rb:25:in `load'
/var/lib/gems/1.9.1/gems/rake-10.0.4/lib/rake/rake_module.rb:25:in `load_rakefile'
/var/lib/gems/1.9.1/gems/rake-10.0.4/lib/rake/application.rb:589:in `raw_load_rakefile'
/var/lib/gems/1.9.1/gems/rake-10.0.4/lib/rake/application.rb:89:in `block in load_rakefile'
/var/lib/gems/1.9.1/gems/rake-10.0.4/lib/rake/application.rb:160:in `standard_exception_handling'
/var/lib/gems/1.9.1/gems/rake-10.0.4/lib/rake/application.rb:88:in `load_rakefile'
/var/lib/gems/1.9.1/gems/rake-10.0.4/lib/rake/application.rb:72:in `block in run'
/var/lib/gems/1.9.1/gems/rake-10.0.4/lib/rake/application.rb:160:in `standard_exception_handling'
/var/lib/gems/1.9.1/gems/rake-10.0.4/lib/rake/application.rb:70:in `run'

有人可以帮忙吗？谢谢。

【问题讨论】：

听起来你在配置/环境文件中有一个坏字符。能发一下里面的内容吗？特别是第 2 行，第 1 个字符。
@iain 我的 environment.rb 文件：#环境变量 DATABASE_URL 应采用以下格式：# => postgres://{user}:{password}@{host}:{port} /path configure :production, :development do db = URI.parse(ENV['DATABASE_URL'] || 'postgres://localhost/mydb') ActiveRecord::Base.establish_connection(:adapter => db.scheme == ' postgres' ? 'postgresql' : db.scheme, :host => db.host, :username => db.user, :password => db.password, :database => db.path[1..-1], :encoding => 'utf8' ) 结束
代码在link。谢谢。
看看the source for sinatra-activerecord，问题不在于我要求的（顺便说一句，看起来不错），而在于config/database.yml。你能发这个吗？

标签： ruby sinatra rake

【解决方案1】：

正如@iain 提到的，这是由于您的 config/database.yml 文件中的解析错误。检查它是否是有效的语法，并将所有制表符替换为空格。

【讨论】：