大约有 48,000 项符合查询结果（耗时：0.0603秒） [XML]
bootstrap popover not showing on top of all elements
I'm working on a bootstrap site and after updating to bootstrap 2.2 from 2.0 everything worked except the popover.
15 Answe...
How do I explicitly specify a Model's table-name mapping in Rails?
...
Rails >= 3.2 (including Rails 4+ and 5+):
class Countries < ActiveRecord::Base
self.table_name = "cc"
end
Rails <= 3.1:
class Countries < ActiveRecord::Base
self.set_table_name "cc"
...
end
...
Maximum MIMEType Length when storing type in DB
What are people using as the length of a MIMEType field in their databases? The longest one we've seen so far is 72 bytes:
...
Purpose of “consider_all_requests_local” in config/environments/development.rb?
What is the purpose of this Rails config setting...
2 Answers
2
...
Register Application class in Manifest?
... to keep the global state of my application. But I'm unable to register it in Manifest file? Any idea how to do this?
3 Ans...
What is a CSRF token ? What is its importance and how does it work?
I am writing an application (Django, it so happens) and I just want an idea of what actually a "CSRF token" is and how it protects the data. Is the post data not safe if you do not use CSRF tokens?
...
Xcode “The private key for is not installed on this mac - distributing”
...
Try following these steps:
Revoke your existing iOS Distribution Certificate from the iOS developer website.
Generate a new iOS Distribution Certificate by going to XCode Preferences->Accounts->View Details and then clicking th...
Fixing the order of facets in ggplot
...
Make your size a factor in your dataframe by:
temp$size_f = factor(temp$size, levels=c('50%','100%','150%','200%'))
Then change the facet_grid(.~size) to facet_grid(.~size_f)
Then plot:
The graphs are now in the correct order.
...
What does send() do in Ruby?
...
send sends a message to an object instance and its ancestors in class hierarchy until some method reacts (because its name matches the first argument).
Practically speaking, those lines are equivalent:
1.send '+', 2
1.+(2)
1 + 2
Note that send bypasses vi...
Static classes and methods in coffeescript
I want to write a static helper class in coffeescript. Is this possible?
1 Answer
1
...