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Saving enum from select in Rails 4.1

...;/option> </select> Values went from "0" to "red" and now we're all set. If you're using a regular ol' rails text_field it's: f.select :color, Wine.colors.keys.to_a If you want to have clean human-readable attributes you can also do: f.select :color, Wine.colors.keys.map { |w| [w...
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Swift - How to convert String to Double

...ocumentation:(They are not locale-aware) The following convenience methods all skip initial space characters (whitespaceSet) and ignore trailing characters. They are not locale-aware. NSScanner or NSNumberFormatter can be used for more powerful and locale-aware parsing of numbers. ...
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How to play a notification sound on websites?

.../div> Browser support <audio> (Modern browsers) <embed> (Fallback) Codes used MP3 for Chrome, Safari and Internet Explorer. OGG for Firefox and Opera. share | improve this answer...
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Best way to change the background color for an NSView

...t—it won't composite on top of any ancestor views. For fills with a partially- (or fully-)transparent color, use NSRectFillUsingOperation developer.apple.com/mac/library/documentation/Cocoa/Reference/… with the NSCompositeSourceOver operation. – Peter Hosey ...
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Java JDBC - How to connect to Oracle using Service Name instead of SID

...elped me resolve the issue I was struggling with for days. I looked around all over the internet until I found the answered by Jim Tough on May 18 '11 at 15:17. With that answer I was able to connect. Now I want to give back and help others with a complete example. Here goes: import java.sql.*; p...
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Eclipse ctrl+right does nothing

... kind of bug in the editor specifically (https://bugs.eclipse.org/bugs/show_bug.cgi?id=426557). Sometimes you can find that when you restart can't move with control+arrow in the editor but you can in other views like console window. You can disable welcome screen ( in most eclipse based IDEs it's a...
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How should I use try-with-resources with JDBC?

...he end of the resource list. The advantage of using two try blocks is that all of your code is present up front so you don't have to refer to a separate method: public List<User> getUser(int userId) { String sql = "SELECT id, username FROM users WHERE id = ?"; List<User> users =...
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Remove CSS class from element with JavaScript (no jQuery) [duplicate]

...impler than regular expressions and splitting className into parts and manually traversing them. – Victor Zamanian Feb 12 '13 at 23:16 23 ...
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targetContentOffsetForProposedContentOffset:withScrollingVelocity without subclassing UICollectionVi

...or anyone who is reading this in the future. First I set up the subclass call MyCollectionViewFlowLayout and then in interface builder I changed the collection view layout to Custom and selected my flow layout subclass. Because you're doing it this way you can't specify items sizes, etc... in IB s...
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C# Events and Thread Safety

... The JIT isn't allowed to perform the optimization you're talking about in the first part, because of the condition. I know this was raised as a spectre a while ago, but it's not valid. (I checked it with either Joe Duffy or Vance Morrison ...