大约有 13,300 项符合查询结果（耗时：0.0185秒） [XML]
Find the extension of a filename in Ruby
I'm working on the file upload portion of a Rails app. Different types of files are handled differently by the app.
4 Answ...
How to sort the result from string_agg()
...
With postgres 9.0+ you can write:
select string_agg(product,' | ' order by product) from "tblproducts"
Details here.
share
|
improve this ans...
Rails: convert UTC DateTime to another time zone
In Ruby/Rails, how do I convert a UTC DateTime to another time zone?
6 Answers
6
...
What is the difference between t.belongs_to and t.references in rails?
...t words? It seems to me they do the same thing?
Tried some Google search, but find no explanation.
1 Answer
...
Specify pane percentage in tmuxinator project
How can I specify a pane percentage in tmuxinator ?
1 Answer
1
...
Rails: where does the infamous “current_user” come from?
I've been looking around recently into Rails and notice that there are a lot of references to current_user . Does this only come from Devise? and do I have to manually define it myself even if I use Devise? Are there prerequisites to using current_user (like the existence of sessions, users, etc)...
Uninstall ReSharper 4.5
I have ReSharper 4.5 in Visual Studio 2008. Now I want to install ReSharper 5, but I can't do it before I uninstall ReSharper 4.5.
...
Scala downwards or decreasing for loop?
In Scala, you often use an iterator to do a for loop in an increasing order like:
7 Answers
...
Setting focus on an HTML input box on page load
I'm trying to set the default focus on an input box when the page loads (example: google).
My page is very simple, yet I can't figure out how to do this.
...
Executing a command stored in a variable from PowerShell
I have a command that I have build and stored in a variable in PowerShell. This command works if I do a Write-Host and copy and paste into a standard cmd.exe window.
...