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Rails: How can I set default values in ActiveRecord?

... default_scope will initialize values for new models, but then that will become the scope on which you find the model. If you just want to initialize some numbers to 0 then this is not what you want. Defining defaults in your migration also works part of the time... As has already been mentioned thi...
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Space between two rows in a table?

... code.google.com/p/ie7-js adds support to child selector in ie5.5, ie6, ie7 as well – Antony Hatchkins Jan 27 '12 at 17:16 ...
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Hudson or Teamcity for continuous integration? [closed]

...o). It can show you, for example, when a file you're editing in the IDE becomes out of date, who changed it and what they changed. You can commit from the IDE to the CI server, run the comile and tests on the build grid, and then the CI server will commit if the build is successful. You can click...
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Is there a way to make ellipsize=“marquee” always scroll?

... I have been facing the problem and the shortest solution I have come up with is to create a new class derived from TextView. The class should override three methods onFocusChanged, onWindowFocusChanged and isFocused to make the TextView all focused. @Override protected void onFocusChange...
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What is the difference between exit and return? [duplicate]

...id, you can omit the return at the end of the function. Last point, exit() come in two flavors _exit() and exit(). The difference between the forms is that exit() (and return from main) calls functions registered using atexit() or on_exit() before really terminating the process while _exit() (from ...
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Plurality in user messages

...f doing this. If this app is meant to be consumed only internally by your company then do the shortcut "item(s)" thing. You don't really have to impress anybody when writing enterprisy code. But I'd advise against doing this for publicly consumed app because this gives the impression that the progr...
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PHP function overloading

Coming from C++ background ;) How can I overload PHP functions? 10 Answers 10 ...
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How to assign colors to categorical variables in ggplot2 that have stable mapping?

...he best. However, I think it's useful to point out another approach that becomes easier when you're trying to maintain consistent color schemes across multiple data frames that are not all obtained by subsetting a single large data frame. Managing the factors levels in multiple data frames can becom...
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Java 8 NullPointerException in Collectors.toMap

...if you have the same key multiple times, as @mmdemirbas pointed out in the comments. If you don't want this, look at the link in the comment. share | improve this answer | fo...
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How to reference generic classes and methods in xml documentation

...wer! It's actually missing from MSDN's page on <see>: msdn.microsoft.com/en-us/library/acd0tfbe.aspx – joce Apr 16 '11 at 20:56 6 ...