mixins

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RoR: STI / MTI / Mixin confusion

i have a problem which is i believe basic for most of the RoR developers. In fact, it\'s more about \"understanding\" than really programming it (i have already been programming a few modules to be ab[详细]

2023-02-18 01:33 分类：问答
Rails: callbacks from module

I try to do this: app/models/my_model.rb: class MyModel <ActiveRecord::Base include MyModule ... end lib/my_module.rb:[详细]

2023-02-15 06:30 分类：问答
In Ruby or Rails, why is "include" sometimes inside the class and sometimes outside the class?

I thought class ApplicationController < ActionController::Base include Foo is to add a \"mixin\" -- so that all methods in the Foo module are treated as methods of the ApplicationController.[详细]

2023-02-14 09:41 分类：问答
Groovy :: @Mixin methods override target class methods

class A { def test() { println \"parent\" } } @Mixin(A) class B { def test() { println \"child\" } } new B().test() // prints \"parent\", but I am expecting it to print \"child\"[详细]

2023-02-12 14:52 分类：问答
ruby NameError when including Singleton module in class belonging to another module

When I try to include the Singleton module in a class that itself exists in a module it does not work. Here\'s an example:[详细]

2023-02-11 15:58 分类：问答
Is there a means of getting an array of the parameters passed to a Sass mixin?

A variety of the new CSS3 properties accept infinite sets of values i.e. box-shadow and background gradient.[详细]

2023-02-10 11:14 分类：问答
Creating mixin with Spring AOP Introductions

Could someone provide a sample code snippet that stitches two java interfaces using spring-aop introduction (mixin)?[详细]

2023-02-07 12:32 分类：问答
"uninitialized constant" when included test helper module

I am getting an uninitialized constant error when trying to include a helper module into a test. I have the following files in my rails test directory[详细]

2023-01-31 10:03 分类：问答
base class using a type defined by the parent class

I have a Visual Studio 2008 C++ application where a base class A_Base needs to instantiate a data member whose type is defined by a parent class. For example:[详细]

2023-01-29 07:19 分类：问答
In Python can one implement mixin behavior without using inheritance?

Is there a reasonable way in Python to implement mixin behavior similar to that found in Ruby -- that is, without using inheritance?[详细]

2023-01-24 20:31 分类：问答