Default argument expressions for a member function can only depend on things that are in class or global scope. The default argument also has to be specified in the method’s declaration (i.e. in the header file). To get around this, you need 2 overloads of your MoveTo method. One that takes 1 argument, and another … Read more
The reason that you have to uncomment the default is that your function says that it returns a String, but if you only have case labels defined for A and B then the function will not return a value if you pass in anything else. Java requires that all functions that state that they return … Read more
You should use the getattr wrapper instead of directly retrieving the value of id. a = getattr(myobject, ‘id’, None) This is like saying “I would like to retrieve the attribute id from the object myobject, but if there is no attribute id inside the object myobject, then return None instead.” But it does it efficiently. … Read more
It’s written as: def my_function(self, param_one=None): # Or custom sentinel if None is vaild if param_one is None: param_one = self.one_of_the_vars And I think it’s safe to say that will never happen in Python due to the nature that self doesn’t really exist until the function starts… (you can’t reference it, in its own definition … Read more
This is not specific to JSF. This is specific to HTML. The HTML5 forms specification section 4.10.22.2 basically specifies that the first occuring <input type=”submit”> element in the “tree order” in same <form> as the current input element in the HTML DOM tree will be invoked on enter press. There are basically two workarounds: Use … Read more
You can define the default value from the ‘data’ attribute. This is part of the Abstract “field” type (http://symfony.com/doc/2.0/reference/forms/types/field.html) $form = $this->createFormBuilder() ->add(‘status’, ‘choice’, array( ‘choices’ => array( 0 => ‘Published’, 1 => ‘Draft’ ), ‘data’ => 1 )) ->getForm(); In this example, ‘Draft’ would be set as the default selected value.
The short answer is – it’s a slightly wider form of private. I’ll assume that you’re familiar with the distinction between public and private, and why it’s generally good practice to make methods and variables private if they’re going to be used solely internally to the class in question. Well, as an extension to that … Read more
By convention a “NULL iterator” for containers, which is used to indicate no result, compares equal to the result of container.end(). std::vector<X>::iterator iter = std::find(my_vec.begin(), my_vec.end(), x); if (iter == my_vec.end()) { //no result found; iter points to “nothing” } However, since a default-constructed container iterator is not associated with any particular container, there is … Read more
set foldlevel=99 should open all folds, regardless of method used for folding. With foldlevel=0 all folded, foldlevel=1 only somes, … higher numbers will close fewer folds.
I recommend using .htaccess. You only need to add: DirectoryIndex home.php or whatever page name you want to have for it. EDIT: basic htaccess tutorial. 1) Create .htaccess file in the directory where you want to change the index file. no extension . in front, to ensure it is a “hidden” file Enter the line … Read more