I'm a new coder and I'm trying to interpret the Titanium code below:
var settings = Alloy.createController('settings');
What exactly is a "Controller" and when is it used? How would a "settings controller" differ from an object titled "settings"?
Any help would be great, thank you!
You might want to read Alloy Controller
and This
This will give you proper understanding of controller.
The setting you defined in createController function refers to the js file named settings while settings is just an object in any file.. But you should avoid using the same names (not necessary because sometimes it creates problems.) .
Related
Good afternoon,
I don't know if what I want to do is possible, so here goes.
I have a module that extends Page_Controller, but I want certain functions to be accessible via the site root.
Eg: getMyDataObjectList();
Currently, they only work if I go through the normal MVC routing structure.
I've found that when I place the function 'getMyDataObjectList' within '/mysite/code/Page.php' it works.The problem is, I don't want to place the code in there. I want it bundled with my Custom Module, but to work the same as though it was in 'mysite/code/Page.php'
[Example Scenario]
site root: http://[somesite].com
By default, the 'Page.ss' template loads.
I would like the theme developer to be able to call my module functions (API) within any template/Layout page, and have the result returned from the site root
Currently, this only works if I move the "API" functions to '/mysite/code/Page.php'
If the code is in my module, then data is only returned when you go to:
http://[somesite].com/[module_controller]
Can this be achieved? If so, how?
Thanks for your assistance.
[Update - Code Solution]
///>MyExtension.php
class MyExtension extends Extension{
public function getMyDataObjectList(){
return 'object list goes here!';
}
}//class
///>[Module] => _config.php
Object::add_extension('Page_Controller', 'MyExtension');
And as always, I do a (/dev/build?flush=1) just in case.
Thanks to: 'simon_w'
Yes, this is relatively straightforward. Simply, create an Extension subclass with your methods in them and then add that to Page_Controller. An Extension subclass is almost exactly the same as a DataExtension, they're just for classes other than DataObjects.
So we're trying to change the default cluster icon using gmaps for rails.
In the wiki
it says
You can customize the pics used by the clusterer by setting the Gmaps.map.customClusterer js function in your code.
Where would we put that function? It says "In the javascript" - but where? Do we straight-up edit the code generated by gmaps4rails? How does gmaps4rails pick up the information?
To do this customization you just need to create js file. Then you can
"require" that js file in your Application.js or otherwise just directly refer in your view file. That's it you need not to do anything else. I have used it and it worked for me. If any questions do let me know.
To understand how it works you can just refer the
gmaps4rails.base.js (see #customClusterer = -> false)
gmaps4rails.googlemaps.js (method - createClusterer)
it is straight forward to understand
Forgive how simple this might sound but I'm stuck and need help. I am putting In App Purchases into may first app, which is not yet released. (So I'm very new)
I have been using a tutorial by Ray Wenderlich. I have just finished starting the Master Detail Application Template. Now it says I need to create a IAPHelper class which will be my class for the IAP the step I am on says to "create a file with the iOS\Cocoa Touch\Objective-C class template". However when I open Xcode and I select new project, I don't see this option. It has Single View Application etc.. the closest thing I see is Cocoa Touch Static Library.
Can someone tell me how I "create a file with the iOS\Cocoa Touch\Objective-C class template". I'm lost, do I do it from inside the Master Application Template? Or do I use some other template name like utility or empty application or Cocoa Touch Static Library? Or do I not have this in my version of Xcode? Or am I totally coming at this the wrong way? ahhhh!lol
I have Xcode 4.3.2
I know this is probably a no-brainer for some but not for me :(
Thanks for the help :)
In the current project you are working in, right click on a file and click "New File..." or go to File>New>File and then you will probably want a Objective-c class objection under Cocoa Touch
You need to do this in the same project which you have done till now. What you are trying to do is to create new project where as the tutorial is asking you to create new file. You have to do this in the same project which you are working on. In order to do that there is an option in file menu to add a new file to project.
I defined a class called "FilterCriteria" which has a bunch of function .m files (getAMask, getBMask, etc.) associated with it. When I create the FilterCriteria object and call the functions using it, I don't have any problems. However, recently I added another function (which, on a side note, is almost identical to another function that still works), and Matlab returns the error, "No appropriate method, property, or field getHMask for class FilterCriteria."
I've searched online for this problem, but I can't find anything. The file getHMask.m is definitely in the correct folder, so I don't understand why Matlab seems to have such a problem finding it.
Here's getHMask.m's header:
function mask = getHMask(object, quadrant, channel)
Any help would be greatly appreciated. Thanks in advance.
1) A mistake I make sometimes is not saving the file with the correct name. Make sure capital letters are in the right places etc!
2) Another layer of error checking here... You can call methods('object here') (see here) and make sure it lists the method (function) that you are trying to add to it. If it doesn't show up here you should check into the implementation of the method and make sure it's correctly being added to the class you're using for your object.
I had the same problem that's kind of suggested by Ben's bullet #2 and it was driving me crazy. Turns out MatLab wasn't loading the latest version of my class's m-file. I vaguely remembered it gave me a warning earlier about that, because there were old instances of the class in the workspace and to keep from invalidating them it said it wouldn't update the class until I cleared the workspace...
So if that's the problem, restarting MatLab will work, or you can just enter >> clear
I think that looking at others' code is a good way to learn. I'm trying to learn iOS programming like this, but one thing that's confusing is when I look at a new project there's always a bunch of view controllers, and I don't know which one loads first.
Is there an entry in the plist file which says which view controller gets loaded first? How do you go about picking apart someone else's code in an Xcode project?
In the project there's a space called Main Interface / Main Storyboard that looks like this:
Target > General > Deployment Info > Main Interface:
But if they set it in code, then use ⇧+⌘+F on the project and search for 'rootViewController'.