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In Postgresql, force unique on combination of two columns
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CREATE TABLE someTable (
id serial primary key,
col1 int NOT NULL,
col2 int NOT NULL,
unique (col1, 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 prim...
Using Rails serialize to save hash to database
I'm try to save a hash mapping ids to a number of attempts in my rails app. My migration to the database to accommodate this new column:
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What requirement was the tuple designed to solve?
... of otherwise unrelated values without creating a type in only one way:
void M(int foo, string bar, double blah)
Logically this is exactly the same as a method M that takes one argument which is a 3-tuple of int, string, double. But I hope you would not actually make:
class MArguments
{
publ...
How do I put an already-running process under nohup?
...eason Ctrl+Z is also not working, go to another terminal, find the process id (using ps) and run:
kill -SIGSTOP PID
kill -SIGCONT PID
SIGSTOP will suspend the process and SIGCONT will resume the process, in background. So now, closing both your terminals won't stop your process.
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Android ClickableSpan not calling onClick
...AN_EXCLUSIVE_EXCLUSIVE);
spannable.setSpan(new ClickableSpan() {
@Override
public void onClick(View widget) {
Log.d(TAG, "TODO onClick.. Terms and Condition");
}
}, indexTermsStart, indexTermsEnd, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);
int indexPolicyStart = stringTerms.indexOf("Pri...
How to create custom easing function with Core Animation?
.... But I'd like to use a more interesting easing function than the few provided by Apple (EaseIn/EaseOut etc). For instance, a bounce or elastic function.
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Installing MSBuild 4.0 without Visual Studio 2010
...er findings after I check it out.
UPDATE: I can confirm that the link provided above does indeed install MSBuild along with other portions of what would constitute an SDK for .NET 4.0. I'm successfully using this on my build machine now without installing Visual Studio 2010 to build our project.
U...
How to give border to any element using css without adding border-width to the whole width of elemen
How to give border to any element using css without adding border-width to the whole width of element?
11 Answers
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AngularJS: ng-repeat list is not updated when a model element is spliced from the model array
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Whenever you do some form of operation outside of AngularJS, such as doing an Ajax call with jQuery, or binding an event to an element like you have here you need to let AngularJS know to update itself. Here is the code change you need to do:
app.directive("remove", ...
Working with $scope.$emit and $scope.$on
...ed a scope to participate in the event system. So you somehow need to provide a scope to your service. $rootScope is the most general-purpose solution to that, but if you want your service to send events from a different scope, your controller could pass its scope to the service by setting a prope...