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Add icon to submit button in twitter bootstrap 2
... While this does apply the styling and looks great, it stops the form from being submitted when the user pressed enter in an input field. (Tested on FF17 only)
– Richard
Dec 5 '12 at 9:30
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Assign multiple columns using := in data.table, by group
... modify the following line in order to get two columns for each objectName from the dim output, rather than one column with two rows? data.table(objectName=ls())[,c("rows","cols"):=dim(get(objectName)),by=objectName] (I'm using data.table 1.8.11)
– dnlbrky
May ...
In Postgresql, force unique on combination of two columns
...ry key over unique here, because we do not allow NULL values in this case. From the PostgeSQL docs: "Note that a unique constraint does not, by itself, provide a unique identifier because it does not exclude null values.)" postgresql.org/docs/8.1/static/ddl-constraints.html#AEN2038
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How to bind inverse boolean properties in WPF?
...People go to insane amounts of effort to separate what they feel is "code" from those poor designers. Extra extra painful when I’m both the coder and the designer.
– Roman Starkov
Apr 14 '12 at 14:48
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Ruby on Rails. How do I use the Active Record .build method in a :belongs to relationship?
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Where it is documented:
From the API documentation under the has_many association in "Module ActiveRecord::Associations::ClassMethods"
collection.build(attributes = {}, …)
Returns one or more new objects of the
collection type that have be...
Why would one declare a Java interface method as abstract?
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From the Java SE 7 JLS (Java Language Specification): "It is permitted, but discouraged as a matter of style, to redundantly specify the public and/or abstract modifier for a method declared in an interface."
For Java SE 5.0...
JQuery .on() method with multiple event handlers to one selector
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I learned something really useful and fundamental from here.
chaining functions is very usefull in this case which works on most jQuery Functions including on function output too.
It works because output of most jQuery functions are the input objects sets so you can use th...
How do I Convert DateTime.now to UTC in Ruby?
...his:
d = DateTime.now
d.new_offset(Rational(0, 24))
You can switch back from UTC to localtime using:
d.new_offset(DateTime.now.offset)
where d is a DateTime object in UTC time. If you'd like these as convenience methods, then you can create them like this:
class DateTime
def localtime
n...
In Java, how do I parse XML as a String instead of a file?
... in my code base, this should work for you.
public static Document loadXMLFromString(String xml) throws Exception
{
DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
DocumentBuilder builder = factory.newDocumentBuilder();
InputSource is = new InputSource(new StringR...
Symfony 2 EntityManager injection in service
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Hi, in this example, how could I change the connection from default to any other?
– ptmr.io
Jul 27 '18 at 8:16
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