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How to use concerns in Rails 4
...ecially named module ClassMethods, and that this module is extended by the base class be ActiveSupport::Concern, too.
– febeling
Sep 17 '13 at 7:10
1
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Should __init__() call the parent class's __init__()?
... a case of whether the you/the subclass needs "something", but whether the base class needs something in order to be a valid base class instance and work correctly. As implementer of the derived class, base class internals are things that you cannot/should not know, and even if you do because you wr...
Python unit test with base and sub class
...lass CommonTests(object):
def testCommon(self):
print 'Calling BaseTest:testCommon'
value = 5
self.assertEquals(value, 5)
class SubTest1(unittest.TestCase, CommonTests):
def testSub1(self):
print 'Calling SubTest1:testSub1'
sub = 3
self.asser...
How to inherit from a class in javascript?
...tor.
//The prototype is just an object when you use `Object.create()`
var Base = {};
//This is how you create an instance:
var baseInstance = Object.create(Base);
//If you want to inherit from "Base":
var subInstance = Object.create(Object.create(Base));
//Detect if subInstance is an instance of...
What is token-based authentication?
I want to understand what token-based authentication means. I searched the internet but couldn't find anything understandable.
...
Explain “claims-based authentication” to a 5-year-old
...tty good answer, but to step away from the technical aspect of it:
Claims Based Authentication is about defining who you trust to give you accurate information about identity, and only ever using that information provided. My (the) go-to example is at a bar. Imagine for a moment that you want to ...
How to implement custom JsonConverter in JSON.NET to deserialize a List of base class objects?
...verter
{
/// <summary>
/// Create an instance of objectType, based properties in the JSON object
/// </summary>
/// <param name="objectType">type of object expected</param>
/// <param name="jObject">
/// contents of JSON object that will be deser...
What is the curiously recurring template pattern (CRTP)?
...
In short, CRTP is when a class A has a base class which is a template specialization for the class A itself. E.g.
template <class T>
class X{...};
class A : public X<A> {...};
It is curiously recurring, isn't it? :)
Now, what does this give you? T...
Private virtual method in C++
...ly, a derived class's override of a virtual function will have to call the base class version. It can't if it's declared private:
class Base
{
private:
int m_data;
virtual void cleanup() { /*do something*/ }
protected:
Base(int idata): m_data (idata) {}
public:
int data() const { retur...
Inheritance and Overriding __init__ in python
...
Yes, in case of multiple inheritance and base classes taking constructor arguments, you usually find yourself calling the constructors manually.
– Torsten Marek
Apr 15 '09 at 22:53
...