Rails 4：同时使用MySql和MongoDB
Rails 4: Use MySql and MongoDB together
我正在尝试同时使用 MongoDB(mongoid) 和 MySQL 在 rails 4 中创建一个应用程序。
但是我无法设置它。
我正在按照以下步骤操作：
rails new myapp -d mysql- 然后将这些行添加到 Gemfile：
gem "mongoid"
gem "bson_ext"
bundle installrails g mongoid:config
第 4 步失败。我无法弄清楚问题所在。它显示以下错误。
/home/devesh/.rvm/gems/ruby-2.2.2/gems/mongoid-1.0.6/lib/mongoid/associations.rb:5:in require': /home/devesh/.rvm/gems/ruby-2.2.2/gems/mongoid-1.0.6/lib/mongoid/associations/has_many.rb:79: syntax error, unexpected keyword_do_cond, expecting ':'
@documents = attributes ? attributes.collect do |attrs|
^
/home/devesh/.rvm/gems/ruby-2.2.2/gems/mongoid-1.0.6/lib/mongoid/associations/has_many.rb:84: syntax error, unexpected ':', expecting keyword_end
end : []
^
/home/devesh/.rvm/gems/ruby-2.2.2/gems/mongoid-1.0.6/lib/mongoid/associations/has_many.rb:99: syntax error, unexpected keyword_do_cond, expecting keyword_end
attributes.values.each do |attrs|
^
/home/devesh/.rvm/gems/ruby-2.2.2/gems/mongoid-1.0.6/lib/mongoid/associations/has_many.rb:139: syntax error, unexpected keyword_end, expecting end-of-input (SyntaxError)
from /home/devesh/.rvm/gems/ruby-2.2.2/gems/mongoid-1.0.6/lib/mongoid/associations.rb:5:in'
from /home/devesh/.rvm/gems/ruby-2.2.2/gems/mongoid-1.0.6/lib/mongoid.rb:40:in require'
from /home/devesh/.rvm/gems/ruby-2.2.2/gems/mongoid-1.0.6/lib/mongoid.rb:40:in'
from /home/devesh/.rvm/gems/ruby-2.2.2/gems/bundler-1.10.6/lib/bundler/runtime.rb:76:in require'
from /home/devesh/.rvm/gems/ruby-2.2.2/gems/bundler-1.10.6/lib/bundler/runtime.rb:76:inblock (2 levels) in require'
from /home/devesh/.rvm/gems/ruby-2.2.2/gems/bundler-1.10.6/lib/bundler/runtime.rb:72:in each'
from /home/devesh/.rvm/gems/ruby-2.2.2/gems/bundler-1.10.6/lib/bundler/runtime.rb:72:inblock in require'
from /home/devesh/.rvm/gems/ruby-2.2.2/gems/bundler-1.10.6/lib/bundler/runtime.rb:61:in each'
from /home/devesh/.rvm/gems/ruby-2.2.2/gems/bundler-1.10.6/lib/bundler/runtime.rb:61:inrequire'
from /home/devesh/.rvm/gems/ruby-2.2.2/gems/bundler-1.10.6/lib/bundler.rb:134:in require'
from /home/devesh/fashion_hub/store/config/application.rb:7:in'
from /home/devesh/.rvm/gems/ruby-2.2.2/gems/spring-1.3.6/lib/spring/application.rb:82:in require'
from /home/devesh/.rvm/gems/ruby-2.2.2/gems/spring-1.3.6/lib/spring/application.rb:82:inpreload'
from /home/devesh/.rvm/gems/ruby-2.2.2/gems/spring-1.3.6/lib/spring/application.rb:143:in serve'
from /home/devesh/.rvm/gems/ruby-2.2.2/gems/spring-1.3.6/lib/spring/application.rb:131:inblock in run'
from /home/devesh/.rvm/gems/ruby-2.2.2/gems/spring-1.3.6/lib/spring/application.rb:125:in loop'
from /home/devesh/.rvm/gems/ruby-2.2.2/gems/spring-1.3.6/lib/spring/application.rb:125:inrun'
from /home/devesh/.rvm/gems/ruby-2.2.2/gems/spring-1.3.6/lib/spring/application/boot.rb:18:in <top (required)>'
from /home/devesh/.rvm/rubies/ruby-2.2.2/lib/ruby/site_ruby/2.2.0/rubygems/core_ext/kernel_require.rb:54:inrequire'
from /home/devesh/.rvm/rubies/ruby-2.2.2/lib/ruby/site_ruby/2.2.0/rubygems/core_ext/kernel_require.rb:54:in `require'
我正在关注这个 url。
一些细节：
- OS - ubuntu 14.04
- ruby v2.2.2
- rails 4.2.3
将这些行添加到您的 application.rb 文件中：
config.generators do |g|
g.orm :active_record
end
这将强制 rails g 使用活动记录。
并且每当您想为 mongodb 生成模型时，请使用：
rails g mongoid:model yourmodelname
我正在尝试同时使用 MongoDB(mongoid) 和 MySQL 在 rails 4 中创建一个应用程序。 但是我无法设置它。
我正在按照以下步骤操作：
rails new myapp -d mysql- 然后将这些行添加到 Gemfile：
gem "mongoid"
gem "bson_ext" bundle installrails g mongoid:config
第 4 步失败。我无法弄清楚问题所在。它显示以下错误。
/home/devesh/.rvm/gems/ruby-2.2.2/gems/mongoid-1.0.6/lib/mongoid/associations.rb:5:in
require': /home/devesh/.rvm/gems/ruby-2.2.2/gems/mongoid-1.0.6/lib/mongoid/associations/has_many.rb:79: syntax error, unexpected keyword_do_cond, expecting ':' @documents = attributes ? attributes.collect do |attrs| ^ /home/devesh/.rvm/gems/ruby-2.2.2/gems/mongoid-1.0.6/lib/mongoid/associations/has_many.rb:84: syntax error, unexpected ':', expecting keyword_end end : [] ^ /home/devesh/.rvm/gems/ruby-2.2.2/gems/mongoid-1.0.6/lib/mongoid/associations/has_many.rb:99: syntax error, unexpected keyword_do_cond, expecting keyword_end attributes.values.each do |attrs| ^ /home/devesh/.rvm/gems/ruby-2.2.2/gems/mongoid-1.0.6/lib/mongoid/associations/has_many.rb:139: syntax error, unexpected keyword_end, expecting end-of-input (SyntaxError) from /home/devesh/.rvm/gems/ruby-2.2.2/gems/mongoid-1.0.6/lib/mongoid/associations.rb:5:in' from /home/devesh/.rvm/gems/ruby-2.2.2/gems/mongoid-1.0.6/lib/mongoid.rb:40:inrequire' from /home/devesh/.rvm/gems/ruby-2.2.2/gems/mongoid-1.0.6/lib/mongoid.rb:40:in' from /home/devesh/.rvm/gems/ruby-2.2.2/gems/bundler-1.10.6/lib/bundler/runtime.rb:76:inrequire' from /home/devesh/.rvm/gems/ruby-2.2.2/gems/bundler-1.10.6/lib/bundler/runtime.rb:76:inblock (2 levels) in require' from /home/devesh/.rvm/gems/ruby-2.2.2/gems/bundler-1.10.6/lib/bundler/runtime.rb:72:ineach' from /home/devesh/.rvm/gems/ruby-2.2.2/gems/bundler-1.10.6/lib/bundler/runtime.rb:72:inblock in require' from /home/devesh/.rvm/gems/ruby-2.2.2/gems/bundler-1.10.6/lib/bundler/runtime.rb:61:ineach' from /home/devesh/.rvm/gems/ruby-2.2.2/gems/bundler-1.10.6/lib/bundler/runtime.rb:61:inrequire' from /home/devesh/.rvm/gems/ruby-2.2.2/gems/bundler-1.10.6/lib/bundler.rb:134:inrequire' from /home/devesh/fashion_hub/store/config/application.rb:7:in' from /home/devesh/.rvm/gems/ruby-2.2.2/gems/spring-1.3.6/lib/spring/application.rb:82:inrequire' from /home/devesh/.rvm/gems/ruby-2.2.2/gems/spring-1.3.6/lib/spring/application.rb:82:inpreload' from /home/devesh/.rvm/gems/ruby-2.2.2/gems/spring-1.3.6/lib/spring/application.rb:143:inserve' from /home/devesh/.rvm/gems/ruby-2.2.2/gems/spring-1.3.6/lib/spring/application.rb:131:inblock in run' from /home/devesh/.rvm/gems/ruby-2.2.2/gems/spring-1.3.6/lib/spring/application.rb:125:inloop' from /home/devesh/.rvm/gems/ruby-2.2.2/gems/spring-1.3.6/lib/spring/application.rb:125:inrun' from /home/devesh/.rvm/gems/ruby-2.2.2/gems/spring-1.3.6/lib/spring/application/boot.rb:18:in<top (required)>' from /home/devesh/.rvm/rubies/ruby-2.2.2/lib/ruby/site_ruby/2.2.0/rubygems/core_ext/kernel_require.rb:54:inrequire' from /home/devesh/.rvm/rubies/ruby-2.2.2/lib/ruby/site_ruby/2.2.0/rubygems/core_ext/kernel_require.rb:54:in `require'
我正在关注这个 url。
一些细节：
- OS - ubuntu 14.04
- ruby v2.2.2
- rails 4.2.3
将这些行添加到您的 application.rb 文件中：
config.generators do |g|
g.orm :active_record
end
这将强制 rails g 使用活动记录。
并且每当您想为 mongodb 生成模型时，请使用：
rails g mongoid:model yourmodelname