I need to find a file in a directory tree and return it's location to the calling function. I have FileVisitor implemented and it finds the file. How do I get it's location to return to the calling function? I've implemented Baeldung's Example in my code.
I get the file and it's path in visitFile function. But how do I send it back to my calling function?
Related
In my custom module, I would like to call uc_quote_request_quotes() (for testing purposes). The module has obviously not been loaded yet because when I try to call it, I get an error:
Fatal error: Call to undefined function uc_quote_request_quotes()...
tf_common.module
function tf_common_test()
{
module_load_include('module', 'uc_quote');
uc_quote_request_quotes();
}
In uc_quotes.pages.inc I have the function defined
function uc_quote_request_quotes() {
//code
}
EDIT:
I had to change the module_load_include line to be module_load_include('inc', 'uc_quote', 'uc_quote.pages');
but that makes me question:
Is there a way to load the entire module or do I have to load each file individually like this?
I don't really want to change the info file to make the other module a dependency because this is only needed as a test function.
The reason uc_quote_request_quotes() isn't available to the tf_common module is because the uc_quote module is loaded after tf_common is. Look into changing the weight of the tf_common module to be loaded after or change uc_quote to be loaded before.
I have a Method defined in lib/methods.js:
Meteor.methods({
getTask: function( extraparam ) {
return {dummy: 'dummy'};
}
});
But when I call it from server/lib/environment.js:
Meteor.call( "getTask", extraparam );
I'm getting Method not found, I was under the impression lib/ is loaded before server/lib, or should I call the method in server/main.js ?
With respect to this issue, the load order rules work as follows:
Paths containing lib gain priority.
Paths gain priority based on their depth.
Combining the two shows us that /server/lib/x.js will be loaded before /lib/x.js. With methods this shouldn't be an issue unless the method is invoked as soon as the containing file is executed.
Your options are:
Fix the load order by moving the call as you suggested. main.js will be loaded last so this will work.
Call the method from within a Meteor.startup callback.
I am writing a Python/PyQt4 application that generates and displays a page in a QWebView widget. The page includes javascript code that I would like to be able to call functions returning data from the python application.
So far I can call functions that do not return data (using the pyqtSlot decorator), and call functions that do take parameters by exposing them as properties (using the pyqtProperty decorator). What I haven't worked out how to do is to call a python function with parameters, that returns data.
The question 9615194 explains how to do this from C++, but I cannot see how to transfer this to PyQt4.
I suspect you're not using the result= keyword to specify the return value in your pyqtSlot decorator?
#pyqtSlot(str, result=str)
def echo(self, phrase):
return self.parent().echo(phrase)
I ran afoul of this myself recently. No errors are generated if you omit result=, the method just silently returns nothing. Pretty maddening 'til I figured it out. See my answer to this question for a worked example.
Is there a function that given an absolute path will attempt to create all directories in the path that do not exist?
You can use
bool QDir::mkpath(const QString &dirPath) const
as described in the Qt4.x documentation and Qt5.x documentation
Creates the directorypath dirPath.
The function will create all parent directories necessary to create
the directory.
Returns true if successful; otherwise returns false.
If the path already exists when this function is called, it will
return true.
My problem, simplified:
I have a dataGrid with a dataProvider "documents"
A column of the datagrid has a labelFunction that gets the project_id field of the document, and returns the project name, from a bindable variable "projects"
Now, I dispatch the events to download from the server the documents and the projects, but If the documents get downloaded before the projects, then the label function gives an error (no "projects" variable)
Therefore, I must serialize the commands being executed: the getDocuments command must execute only after the getProjects command.
In the real world, though, I have dozens of resources being downloaded, and those command are not always grouped together (so I can't for example execute the second command from the onSuccess() method of the first, because not always they must be executed together..)..
I need a simple solution.. I need an idea..
If I understand you correctly, you need to serialize the replies from the server. I have done that by using AsyncToken.
The approach: Before you call the remote function, add a "token" to it. For instance, an id. The reply from the server for that particular call will then include that token. That way you can keep several calls separate and create chains of remote calls.
It's quite cool actually:
service:RemoteObject;
// ..
var call:AsyncToken = service.theMethod.send();
call.myToken = "serialization id";
private function onResult(event:ResultEvent):void
{
// Fetch the serialization id and do something with it
var serId:String = event.token.myToken;
}