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Nested attributes unpermitted parameters

... Person . I want a form that can create the Bill and its children Dues all in one page. I am trying to create a form using nested attributes, similar to ones in this Railscast . ...
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How does Google Instant work?

...xactly how the new google instant search works? It seems to just be AJAX calls to the old search, but it's pretty hard to simplify Google that much. Anybody have speculations? ...
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How to let PHP to create subdomain automatically for each user?

...tp://user.mywebsite.com ? Do i have to access htaccess somehow? Is it actually simply possible to create it via pure php code or I need to use some external script-server side language? ...
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Spring RestTemplate timeout

... I finally got this working. I think the fact that our project had two different versions of the commons-httpclient jar wasn't helping. Once I sorted that out I found you can do two things... In code you can put the following: ...
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Difference between DirectCast() and CType() in VB.NET

... convert a string to an integer. It has as much power as calling Convert.To___() in C#, where the ___ is the target type of your cast. This is desirable because it's very powerful. However, this power comes at the cost of performance; it's not as fast as DirectCast() or C#'s cast operator because i...
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How to parse unix timestamp to time.Time

...ut: 2014-07-16 20:55:46 +0000 UTC Playground: http://play.golang.org/p/v_j6UIro7a Edit: Changed from strconv.Atoi to strconv.ParseInt to avoid int overflows on 32 bit systems. share | improve t...
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Difference between TCP and UDP?

...TCP is a connection oriented stream over an IP network. It guarantees that all sent packets will reach the destination in the correct order. This imply the use of acknowledgement packets sent back to the sender, and automatic retransmission, causing additional delays and a general less efficient tra...
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Installing SciPy and NumPy using pip

...t requires both the SciPy and NumPy libraries. While developing, I installed both using 8 Answers ...
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Flat file databases [closed]

... Well, what is the nature of the flat databases. Are they large or small. Is it simple arrays with arrays in them? if its something simple say userprofiles built as such: $user = array("name" => "dubayou", "age" => 20, "websites" => array("dubayou.com",...
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Programmatically Determine a Duration of a Locked Workstation?

...do it. According to this Microsoft article, "There is no function you can call to determine whether the workstation is locked." It must be monitored using the SessionSwitchEventHandler. – JonathanDavidArndt Mar 12 at 2:26 ...