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How to empty/destroy a session in rails?
... available for clearing hash will work with sessions.
session.clear
or
if specific keys have to be destroyed:
session.delete(key)
Tested in rails 3.2
added
People have mentioned by session={} is a bad idea. Regarding session.clear, Lobati comments- It looks like you're probably better off...
How to do a join in linq to sql with method syntax?
...own the expansion in the case where the join is just followed by a select. If you've got something else, it becomes more tricky due to transparent identifiers - the mechanism the C# compiler uses to propagate the scope of both halves of the join.
So to change Justin's example slightly:
var result ...
Remove scroll bar track from ScrollView in Android
... android:scrollbarThumbVertical="@null" Add this on scrollview if you want your screen to scroll when keyboard is open :)
– Biswas Khayargoli
Feb 17 '17 at 19:52
a...
Convert sqlalchemy row object to python dict
... __dict__ includes an _sa_instance_state entry which must then be removed. if you upgrade to a future version and other attributes are added you may have to go back and manually deal with them. if you want just column data (for example, to take a list of instances from a query and drop them in a pan...
@AspectJ pointcut for all methods of a class with specific annotation
I want to monitor all public methods of all Classes with specified annotation (say @Monitor) (note: Annotation is at class level). What could be a possible pointcut for this?
Note: I am using @AspectJ style Spring AOP.
...
jQuery removeClass wildcard
...
If you want to use it in other places I suggest you an extension. This one is working fine for me.
$.fn.removeClassStartingWith = function (filter) {
$(this).removeClass(function (index, className) {
return (cla...
How to draw a custom UIView that is just a circle - iPhone app
...easiest way of making a circle, but is not necessarily the most efficient. If performance is vital, drawRect will probably yield better results.
– Benjamin Mayo
Jul 5 '11 at 22:28
...
Ruby regular expression using variable name
...ub( /#{var}/, 'foo' ) # => "a test foo"
Things get more interesting if var can contain regular expression meta-characters. If it does and you want those matacharacters to do what they usually do in a regular expression, then the same gsub will work:
var = "Value|a|test"
str = "a test Value"...
Sass .scss: Nesting and multiple classes?
...ner.desc {
background: blue;
}
The & will completely resolve, so if your parent selector is nested itself, the nesting will be resolved before replacing the &.
This notation is most often used to write pseudo-elements and -classes:
.element{
&:hover{ ... }
&:nth-chi...
How can I divide two integers to get a double?
...ant to cast the numbers:
double num3 = (double)num1/(double)num2;
Note: If any of the arguments in C# is a double, a double divide is used which results in a double. So, the following would work too:
double num3 = (double)num1/num2;
For more information see:
Dot Net Perls
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