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Create a devise user from Ruby console

... there is just so much magic happening here.. The User model extends Active Record. how come the create method is overriden. Where is the password being encrypted? – codeAnand Dec 16 '11 at 11:15 ...
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Search for executable files using find command

... Tip of the hat to @gniourf_gniourf for clearing up a fundamental misconception. This answer attempts to provide an overview of the existing answers and to discuss their subtleties and relative merits as well as to provide background information, espe...
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Converting an int to a binary string representation in Java?

...2) specified by the second argument. Integer.toString(i, radix) Example_ private void getStrtingRadix() { // TODO Auto-generated method stub /* returns the string representation of the unsigned integer in concern radix*/ System.out.println("Binary eqivalent ...
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PyCharm shows unresolved references error for valid code

... interpreter, and can run successfully. The remote interpreter paths are mapped properly. This seems to be the correct configuration, but PyCharm is highlighting my valid code with "unresolved reference" errors, even for built-in Python functions. Why don't these seem to be detected, even though ...
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postgresql - sql - count of `true` values

...actually omit ELSE null to get the same result. – 200_success May 12 '16 at 18:26  |  show 3 more comments ...
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Enable 'xp_cmdshell' SQL Server

...the previous values, you can read them from sys.configurations first, then apply them in reverse order at the end. We can also avoid unnecessary reconfigure calls: declare @prevAdvancedOptions int declare @prevXpCmdshell int select @prevAdvancedOptions = cast(value_in_use as int) from sys.configu...
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What's the simplest way to test whether a number is a power of 2 in C++?

...a clever little bit hack to test that one and only one bit is set. bool is_power_of_2(int x) { return x > 0 && !(x & (x−1)); } For more bit twiddling see here. share | improv...
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What happens if you don't commit a transaction to a database (say, SQL Server)?

...ion, it's still "running" and potentially holding locks. If your client (application or user) closes the connection to the database before committing, any still running transactions will be rolled back and terminated. shar...
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Gson - convert from Json to a typed ArrayList

... is an interface implemented by different kinds of logs made by my Android app--SMS logs, call logs, data logs--and this ArrayList is a collection of all of them. I keep getting an error in line 6. ...
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best way to get the key of a key/value javascript object

... What if I don’t wantfoo[i]to be"_proto_"? – user2284570 May 29 '16 at 2:04 1 ...