而不是页面发出另一个CSS请求,我想让Rails视图呈现页面中的CSS文件,所以它只有1个请求.
这可能吗?
使用会heroku restart导致数据丢失吗?是否在重新启动期间使用了最后一个数据库备份,或者数据库是否未受影响?
我想学习如何为Rails应用程序编写单元测试.我从哪里开始?从2007年开始,Google上的所有教程都是陈旧的,似乎有很多选择但不是首选解决方案.建议表示赞赏.
我在控制器中有以下内容:
@users = User.order("created_at").all
@user_count = @users.length.to_i
@active_7_day = .....count.to_i
@mystat = (@user_count / @active_7_day)
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没有错误是好的,但在视图@mystat总是0?你如何在Rails中进行划分?
谢谢
我正在尝试这样做:
describe "should fail on create if the name is shorter than 5 characters" do
group = Factory.build(:group, :name => "a")
group.should be_invalid
group.should have(1).error_on(:name)
end
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但是我收到以下错误:
/spec/models/group_model_spec.rb:22: undefined local variable or method `be_valid' for #<Class:0x105d13ed0> (NameError)
from /Library/Ruby/Gems/1.8/gems/rspec-core-2.5.1/lib/rspec/core/example_group.rb:132:in `module_eval'
from /Library/Ruby/Gems/1.8/gems/rspec-core-2.5.1/lib/rspec/core/example_group.rb:132:in `subclass'
from /Library/Ruby/Gems/1.8/gems/rspec-core-2.5.1/lib/rspec/core/example_group.rb:119:in `describe'
from /xxxx/spec/models/group_model_spec.rb:15
from /Library/Ruby/Gems/1.8/gems/rspec-core-2.5.1/lib/rspec/core/example_group.rb:132:in `module_eval'
from /Library/Ruby/Gems/1.8/gems/rspec-core-2.5.1/lib/rspec/core/example_group.rb:132:in `subclass'
from /Library/Ruby/Gems/1.8/gems/rspec-core-2.5.1/lib/rspec/core/example_group.rb:119:in `describe'
from /Library/Ruby/Gems/1.8/gems/rspec-core-2.5.1/lib/rspec/core/extensions/object.rb:6:in `describe'
from /Users/bhellman/Sites/companyline/spec/models/group_model_spec.rb:3
from /Library/Ruby/Gems/1.8/gems/rspec-core-2.5.1/lib/rspec/core/configuration.rb:386:in `load'
from /Library/Ruby/Gems/1.8/gems/rspec-core-2.5.1/lib/rspec/core/configuration.rb:386:in `load_spec_files'
from /Library/Ruby/Gems/1.8/gems/rspec-core-2.5.1/lib/rspec/core/configuration.rb:386:in `map'
from /Library/Ruby/Gems/1.8/gems/rspec-core-2.5.1/lib/rspec/core/configuration.rb:386:in `load_spec_files'
from /Library/Ruby/Gems/1.8/gems/rspec-core-2.5.1/lib/rspec/core/command_line.rb:18:in `run'
from /Library/Ruby/Gems/1.8/gems/rspec-core-2.5.1/lib/rspec/core/runner.rb:55:in `run_in_process' …Run Code Online (Sandbox Code Playgroud) 我将时区存储在我通过FB的API获取的数据库中.时区看起来像:
-7
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我应该在rails/PostgreSQL中使用哪个字段来存储此值?串?
如何创建适用于以下内容的条件路由:
http://site.com/1vcs1YUf1Z
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其中1vcs1YUf1Z是UID.
有没有办法我可以在路由文件的末尾添加一个路由选项,说明是否满足以下条件(10个字符跟踪第一个/那就是它)然后路由到以下并将其作为UID传递?
谢谢
我正在尝试了解如何在rails中创建民意调查/调查应用程序.
现在我有以下型号:
Poll (id, question:string, answer_1:string, answer_2:string, answer_3:string, answer_4:string, answer_5:string)
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如何跟踪每个用户的PollVote?此外,我将如何构建显示民意调查的表单,并提供问题和答案.然后通过PollVote模型查询以查看用户是否进行了任何投票?
想法?谢谢
我从以下回来了 $.ajax({ POST.....
[{"total_votes":1,"options":[{"id":40,"vote_count":0,"users":[]},{"id":41,"vote_count":1,"users":[{"photo":"xxxxxxxxxxx.png","name":"XXXXX,"id":1}]},{"id":42,"vote_count":0,"users":[]}]}]
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所以我试着得到total_votes:
success: function(e) {
console.log(e['total_votes'])
}
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也试着搞定
console.log( e['options'].length() )
console.log( e['options'][0]['id'] )
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关于为什么我一直未定义的建议?还有更好的方法来循环选项吗?
谢谢
注意占位符如何在Stackoverflow上工作,询问问题标题,并在Twitter的注册表单上:https://twitter.com/signup
占位符有两种状态:
有谁知道支持这个的jQuery插件?我见过jQuery占位符插件支持#1,但不支持#2.
谢谢
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