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Understanding Magento Block and Block Type
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The A is a module's alias. In this case page is short for Mage_Page_Block (it is defined in app/code/core/Mage/Page/etc/config.xml if you want to see).
The B is the class name relative to the alias, initial letters of each word are capitalised. In this case html becomes Html an...
Comparing two dataframes and getting the differences
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This approach, df1 != df2, works only for dataframes with identical rows and columns. In fact, all dataframes axes are compared with _indexed_same method, and exception is raised if differences found, even in columns/indices order.
If I got you right, you want...
PostgreSQL - how to quickly drop a user with existing privileges
I'm trying to make restricted DB users for the app I'm working on, and I want to drop the Postgres database user I'm using for experimenting. Is there any way to drop the user without having to revoke all his rights manually first, or revoke all the grants a user has?
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AngularJS access scope from outside js function
...(note: I personally like to chuck in safeApply as a function of $rootScope for convenience purposes)
Example:
function change() {
alert("a");
var scope = angular.element($("#outer")).scope();
scope.safeApply(function(){
scope.msg = 'Superhero';
})
}
Demo: http://jsfiddle....
How to instantiate a File object in JavaScript?
There's a File object in JavaScript. I want to instantiate one for testing purposes.
6 Answers
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How to get visitor's location (i.e. country) using geolocation? [duplicate]
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You can use my service, http://ipinfo.io, for this. It will give you the client IP, hostname, geolocation information (city, region, country, area code, zip code etc) and network owner. Here's a simple example that logs the city and country:
$.get("https://ipinfo.io...
PG::ConnectionBad - could not connect to server: Connection refused
...ch x86_64" gem install pg. I don't know how many other solutions I tried before getting this to work.
– IAmNaN
Oct 20 '14 at 2:52
2
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How to use DISTINCT and ORDER BY in same SELECT statement?
... doesn't work is because of the logical order of operations in SQL, which, for your first query, is (simplified):
FROM MonitoringJob
SELECT Category, CreationDate i.e. add a so called extended sort key column
ORDER BY CreationDate DESC
SELECT Category i.e. remove the extended sort key column again...
How to cast an Object to an int
...le int :
int i = Integer.valueOf((String) object);
It can throw a NumberFormatException if your object isn't really a String with an integer as content.
Resources :
Oracle.com - Autoboxing
Oracle.com - Primitive Data types
On the same topic :
Java: What's the difference between autoboxin...
How to fallback to local stylesheet (not script) if CDN fails
... like to fall back to my local version of the stylesheet if the CDN fails. For scripts the solution is well known:
11 Answe...