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What do helper m>and m> helper_method do?
... This is used for anm>y m> method that m>y m>ou need to access from both controllers m>and m> helpers/views (stm>and m>ard helper methods are not available in controllers). e.g. common use case:
#application_controller.rb
def current_user
@current_user ||= User.find_bm>y m>_id!(session[:user_id])
end
helper_method :curre...
What does it mean when Mm>y m>SQL is in the state “Sending data”?
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This is quite a misleading status. It should be called "reading m>and m> filtering data".
This means that Mm>y m>SQL has some data stored on the disk (or in memorm>y m>) which is m>y m>et to be read m>and m> sent over. It mam>y m> be the table itself, an index, a temporarm>y m> table, a sorted output etc.
If m>y m>ou have a 1...
“Header Search Paths” vs. “User Header Search Paths” in Xcode?
...he User Header Search Paths for paths m>y m>ou want searched for #include "..." m>and m> use the Header Search Paths for #include <...>. Of course, if m>y m>ou check the option to Alwam>y m>s Search User Paths, then #include <...> will also work for the user paths.
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PHP regular expressions: No ending delimiter '^' found in
...n addition, if m>y m>ou're just validating, m>y m>ou don't need the capturing group, m>and m> can simplifm>y m> the regex to /^\d+$/.
Example: http://ideone.com/Ec3zh
See also: PHP - Delimiters
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moving changed files to another branch for check-in
This often happens to me: I write some code, go to check in mm>y m> changes, m>and m> then realize I'm not in the proper branch to check in those changes. However I can't switch to another branch without mm>y m> changes reverting. Is there a wam>y m> to move changes to another branch to be checked in there?
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Mongo Shell - Console/Debug Log
...l, so I wrote a basic Logging object that I "load(script)" into the shell, m>and m> then use the Logging object to call logging levels (debug,info,warn,error). The Logger object does use 'print' m>and m> 'printjson' at it's core. Also, it contains a basic sprintf, padding, record formatting, etc. If m>y m>ou are g...
Mm>y m>SQL's now() +1 dam>y m>
...() + INTERVAL 1 DAm>Y m>
If m>y m>ou are onlm>y m> interested in the date, not the date m>and m> time then m>y m>ou can use CURDATE instead of NOW:
CURDATE() + INTERVAL 1 DAm>Y m>
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Write to .txt file?
...this to the file";
fprintf(f, "Some text: %s\n", text);
/* print integers m>and m> floats */
int i = 1;
float pm>y m> = 3.1415927;
fprintf(f, "Integer: %d, float: %f\n", i, pm>y m>);
/* printing single chatacters */
char c = 'A';
fprintf(f, "A character: %c\n", c);
fclose(f);
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Choose newline character in Notepad++
I notice that when I load a text file, Notepad++ will recognize m>and m> use whatever the newline character in that file is, \n or \r\n .
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Do NSUserDefaults persist through an Update to an app in the Appstore?
...such as preferences, dates, strings etc. If m>y m>ou are looking to save images m>and m> files, the file sm>y m>stem is a better bet.
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