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What is `params.require(:person).permit(:name, :age)` doing in Rails 4?
...itted? means the parameter object can be used in mass assignment; else the app will throw a ForbiddenAttributes error.
– sameers
Nov 13 '13 at 18:05
3
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How do I create directory if none exists using File class in Ruby?
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Based on others answers, nothing happened (didn't work). There was no error, and no directory created.
Here's what I needed to do:
require 'fileutils'
response = FileUtils.mkdir_p('dir_name')
I needed to create a variable to catch the response that FileUt...
Force CloudFront distribution/file update
I'm using Amazon's CloudFront to serve static files of my web apps.
13 Answers
13
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How to use the “number_to_currency” helper method in the model rather than view?
...s a slippery slope from “well just this one thing” to a bloated model. App helpers in Rails are a junk-drawer, presenters/view-models are easier to manage. I don’t see creating the data for a report and generating the (html|pdf|csv|etc.) view of that data as a single responsibility any more th...
Enable zooming/pinch on UIWebView
...le = 1; // set as you want.
//// Below two line is for iOS 6, If your app only supported iOS 7 then no need to write this.
webView.scrollView.zoomScale = 2;
webView.scrollView.zoomScale = 1;
}
#pragma mark -
#pragma mark - UIScrollView Delegate Methods
- (void)scrollViewDidEndZooming:...
Swift - How to convert String to Double
...00,00 it would cut off the 2 decimals at the end. At least this is whats happening for Objective-C. -- As per Apple documentation:(They are not locale-aware) The following convenience methods all skip initial space characters (whitespaceSet) and ignore trailing characters. They are not l...
How to resize an Image C#
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This is very helpfull, and i am using this in my app. However its important to note that this algorithm does not work with transparent imagens.. It turns all transparent pixels to black. Its probably easy to fix, but its just a note for users. :)
– mem...
How do I create a file and write to it in Java?
..._8);
//Files.write(file, lines, StandardCharsets.UTF_8, StandardOpenOption.APPEND);
Creating a binary file:
byte data[] = ...
Path file = Paths.get("the-file-name");
Files.write(file, data);
//Files.write(file, data, StandardOpenOption.APPEND);
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How to use conditional breakpoint in Eclipse?
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Thanks, appreciate it
– user195488
Apr 4 '13 at 0:22
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Paste text on Android Emulator
...ers - after trying to send 'ლ\(ಠ益ಠლ\)', it just says 'Killed' or appears to succeed and nothing is typed, nor do I have anything pasteable in the emulator. The SMS method (I tried from DDMS) doesn't even seem to be working here, it displays as "?(????)" :(
– Groxx
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