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ActiveRecord.find(array_of_ids), preserving order
...ccording to the original list of IDs you used when looking up the record.
Based on the many excellent answers to Sort an array according to the elements of another array, I recommend the following solution:
Something.find(array_of_ids).sort_by{|thing| array_of_ids.index thing.id}
Or if you need ...
Getting multiple keys of specified value of a generic Dictionary?
... the missing functions to make it an IDictionary compatible class. This is based on the version with unique Key-Value Pairs. Here's the file if desired (Most work was the XMLDoc through):
using System;
using System.Collections;
using System.Collections.Generic;
using System.Linq;
using System.Text;...
How do I convert a decimal to an int in C#?
...nd thus can be understood to be able to truncate even numbers that are not base 10, as opposed to Decimal.Truncate, which is a true truncation of a base 10 number.
– Brian
Jun 24 '09 at 20:55
...
How do I escape ampersands in batch files?
...
From a cmd:
& is escaped like this: ^& (based on @Wael Dalloul's answer)
% does not need to be escaped
An example:
start http://www.google.com/search?client=opera^&rls=en^&q=escape+ampersand%20and%20percentage+in+cmd^&sourceid=opera^&ie=utf-8^&am...
How to do exponentiation in clojure?
...
You can use java's Math.pow or BigInteger.pow methods:
(Math/pow base exponent)
(.pow (bigint base) exponent)
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Getting the class name of an instance?
...nstance of an object in Python if the function I am doing this from is the base class of which the class of the instance has been derived?
...
Xcode without Storyboard and ARC
...s in build phases then add there manually.
3) Remove Main storyboard file base name from plist.
4) Change appdelegate didFinishLaunchingWithOptions file and add :
self.window = [[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]] ;
[self.window makeKeyAndVisible];
just like :
- (...
Is it possible to allow didSet to be called during initialization in Swift?
...
This works if you do this in a subclass
class Base {
var someProperty: AnyObject {
didSet {
doStuff()
}
}
required init() {
someProperty = "hello"
}
func doStuff() {
print(someProperty)
}
}
class SomeClass: Base {
required init() ...
How do I convert a string to a number in PHP?
...re leading zeros, and the string is NOT intended as a number with an octal base.
– Syntax Junkie
Aug 26 '16 at 19:38
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Can an AngularJS controller inherit from another controller in the same module?
...ase you are using vm controller syntax, here is my solution:
.controller("BaseGenericCtrl", function ($scope) {
var vm = this;
vm.reload = reload;
vm.items = [];
function reload() {
// this function will come from child controller scope - RESTDataService.getItemsA
...