parent

Having two simple classes; one with only parent attribute, and one with both parent and children attributes. This means that the one with both parent and children inherits from the one with only parent . Here's the class with only parent attribute. Let's call it Child since it can only be a child, not a parent. I'll use a method set_parent() to make it more clear, but I would use a setter in my actual code. class Child(object): def __init__(self, parent=None): self.__parent = None self.set_parent(parent) def set_parent(self, parent): # Remove self from old parent's children if self.__parent:

I don't understand the concept of calling a parent method in PHP. The parent method is not static, yet it is called statically - normally PHP would throw an error/warning. Question is, is this a quirk from PHP, or is this how it should be in OOP? Taking the example from php.net: <?php class A { function example() { echo "I am A::example() and provide basic functionality.<br />\n"; } } class B extends A { function example() { echo "I am B::example() and provide additional functionality.<br />\n"; parent::example(); } } $b = new B; // This will call B::example(), which will in turn call A:

I have this LESS setup: .wrapper { .parent { height: 100px; .children { //some style; &:hover { .parent & { height: 150px; } } } } } I need to change some height for parent element by hover on some child inside of it. This code is not working, so is there any possible to do this? Much thx for help. Adding the :hover to the .parent instead of the .children div will achieve the result, http://codepen.io/duncanbeattie/pen/xvDdu .wrapper { .parent { pointer-events:none; height: 100px; background:#000; .children { //some style; height:20px; background:#f00; pointer-events:all; } &:hover { height

I am trying to find the parent of an element and it's parent first child, the code is like this: <ul class="lowerMenu"> <li><a href="" class="selected">Welcome</a></li> <li><a href="">Logo</a></li> <li><a href="">Websites</a></li> <li><a href="">Stationery</a></li> <li><a href="">Illustration</a></li> <li><a href="">Full Pack</a></li> </ul> function setIntervalAndExecute() { changeImages(); setTimeout(function(){ showImages(imagesArray); },500); var intervalot = window.setInterval(function(){ changeImages(); var selected = $('.selected'); if (!selected.parent().is(':last-child')) { $('

I have a RelativeLayout with a button inside it. Once the user clicks on that button, I would like to change the background of the parent view (RelativeLayout). I know I can do this by storing the parent view in a variable or setting a tag on the button, but I'd lime to avoid that (I have very good reasons for not wanting this). Isn't there a way to just access the parent view from the button itself? Try View.getParent() : Button yourBtn = (Button) findViewById(R.id.your_btn); RelativeLayout yourRelLay = (RelativeLayout) yourBtn.getParent(); 来源： https://stackoverflow.com/questions/4655845