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What is the email subject length limit?

... ...This would be the case with any other header field too (eg "From"). PS if you're wondering why 78 instead of 80, or why 998 instead of 1000, it's because the email standard specifies CRLF (\r\n) as separator, which is two bytes, making it 1000 bytes per line of which 998 is the heade...
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Rails update_attributes without save?

...Your example is a little bit misleading since you haven't pasted this line from the model: attr_accessible :is_admin, :as => :admin ;) – Robin Sep 5 '12 at 16:12 ...
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Days between two dates? [duplicate]

... Assuming you’ve literally got two date objects, you can subtract one from the other and query the resulting timedelta object for the number of days: >>> from datetime import date >>> a = date(2011,11,24) >>> b = date(2011,11,17) >>> a-b datetime.timedelta(7...
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How to fully delete a git repository created with init?

... also type cd (the space is important), drag and drop your git repo folder from Finder to the terminal window, press return, then type rm -fr .git, then return again. On Ubuntu, use shortcut Ctrl + H. share | ...
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Kiosk mode in Android

...ction.BOOT_COMPLETED intent in a BroadcastReceiver and start your Activity from there. In the Activity you can register yourself as the new default homescreen[1] and handle the keys. I think there are some instances that you can't handle without modifying the framework (like longpress on Home to s...
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Can I see changes before I save my file in Vim?

...ng the file to the command (on stdin). In the command, - tells it to read from stdin. – chaos Oct 7 '13 at 16:15 14 ...
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Laravel requires the Mcrypt PHP extension

...If it's not then check where the command line is loading your php.ini file from by running php --ini from your terminal. In this php.ini file you can enable the extension. OSX I have heard of people on OSX running in to problems due to the terminal pointing to the native PHP shipped with OSX. You...
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Only using @JsonIgnore during serialization, but not deserialization

I have a user object that is sent to and from the server. When I send out the user object, I don't want to send the hashed password to the client. So, I added @JsonIgnore on the password property, but this also blocks it from being deserialized into the password that makes it hard to sign up users...
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What is code coverage and how do YOU measure it?

...or each milestone. We have actually three code coverage metrics - coverage from unit tests (from the development team), scenario tests (from the test team) and combined coverage. BTW, while code coverage is a good metric of how much testing you are doing, it is not necessarily a good metric of how ...
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Get a list of all git commits, including the 'lost' ones

... indeed. probably the easiest way to recover from that situation will be to look at the reflog for HEAD itself. – araqnid Jan 24 '11 at 21:29 ...