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In Postgresql, force unique on combination of two columns
...l1, col2)
)
autoincrement is not postgresql. You want a serial.
If col1 and col2 make a unique and can't be null then they make a good primary key:
CREATE TABLE someTable (
col1 int NOT NULL,
col2 int NOT NULL,
primary key (col1, col2)
)
...
POST JSON fails with 415 Unsupported media type, Spring 3 mvc
...
I've had this happen before with Spring @ResponseBody and it was because there was no accept header sent with the request. Accept header can be a pain to set with jQuery, but this worked for me source
$.postJSON = function(url, data, callback) {
return jQuery.ajax({
hea...
Is there a case insensitive jQuery :contains selector?
...ery selector or should I do the work manually by looping over all elements and comparing their .text() to my string?
12 Ans...
How to return smart pointers (shared_ptr), by reference or by value?
...al C++ compilers implement RVO even when all optimizations are turned off. And with C++11's move semantics, this concern is even less relevant. (But the only way to be sure is to profile and experiment.)
If you're still not convinced, Dave Abrahams has an article that makes an argument for returnin...
Changing the browser zoom level
...t would change the browser zoom level (+) (-). I'm requesting browser zoom and not css zoom because of image size and layout issues.
...
Is the Javascript date object always one day off?
...
Notice that Eastern Daylight Time is -4 hours and that the hours on the date you're getting back are 20.
20h + 4h = 24h
which is midnight of 2011-09-24. The date was parsed in UTC (GMT) because you provided a date-only string without any time zone indicator. If you had ...
What is the combinatory logic equivalent of intuitionistic type theory?
I recently completed a university course which featured Haskell and Agda (a dependent typed functional programming language), and was wondering if it was possible to replace lambda calculus in these with combinatory logic. With Haskell this seems possible using the S and K combinators, thus making i...
Simulate limited bandwidth from within Chrome?
... answered Apr 26 '12 at 8:17
Andy DaviesAndy Davies
5,65722 gold badges2323 silver badges2121 bronze badges
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How to extract a string using JavaScript Regex?
...
You need to use the m flag:
multiline; treat beginning and end characters (^ and $) as working
over multiple lines (i.e., match the beginning or end of each line
(delimited by \n or \r), not only the very beginning or end of the
whole input string)
Also put the * in the r...
How to tell a Mockito mock object to return something different the next time it is called?
...ks to get this to work correctly. I'd like to avoid rebuilding the mocks, and just use the same objects in each test.
5 A...