I have a form that is supposed to create an entity of type Load, but for some reason, doesn't seem to be actually passing or seeing any of the data related to associations of the entity (load.user, load.client, etc). This all used to work fine but stopped working at some point during a bunch of refactoring (that didn't change any of the fields in any of the models). Now all of the forms in my website have broken the same way and I have no clue where to even look to start fixing it.
From the view, I submit the form for a new Load, printing out the data everywhere I can along the way. Printing out the data being sent to the server before it's sent shows all the data is there like it should be. Printing out Form.form(Load.class).bindFromRequest() in the controller shows the form's data contains everything needed, for example, the value user.id=1 is in the data. However, there is also a validation error saying that the user is missing. How can this be?
Form(of=class models.Load, data={ a bunch of stuff, user.id=1, a bunch more stuff}, value=None, errors={=[ValidationError(,Logged in user is missing or invalid.,[])]})
The validation error is being generated by public String validate() in the Load class, which is simply checking if(user==null) and returning that string if it is. I should note that every form that submits multiple entities (for example, submitting a Dock and then also the Dock's Location) only saves the main entity (in this example, the Dock) and ignores all others (the Dock's Location is never saved, even though Dock cascades in the model to also save the Location). All of our form fields are labelled correctly, this code did used to work at some point before it mysteriously stopped working!
So why did all of my forms suddenly stop correctly dealing with anything but the main model for the form? It is as if they cannot even "see" the data contained in bindFromRequest(). If I print out a variable in the validation method of Load, such as this.status, it prints the correct thing. But if I try to print something like this.user.id or this.client.id I get a null pointer error. Where is the code in Play that actually interprets the data (user.id=1) and turns it into the User associated with the Load, and how could it be breaking?
Edit: Also, yes, I did try "play clean", it was the first thing I tried since usually it fixes weird errors like these! But this time, no dice.
Edit2: I'm including the html from the form, in case it is helpful.
<input type="text" id="user_id" name="user.id" value="1" class="idfield">
Edit3: The only change I made during the refactoring that might have influenced this is that I had to make some setter methods like Load.setBroker() because the ones that are supposedly generated by Play didn't work. For example, load.broker=aBroker would not have set the Load's Broker before, so I had to make a public void setBroker(Broker broker) method in Load. Does Play use the auto-generated setters to bind the data? Could overwriting them cause problems?
Whoops, I figured it out. It was the setters I had written. Some of them were set to private purely by mistake, and apparently this was preventing Play from setting the values when binding the data. Changed them all to public and the mystery error vanished.
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My team and I have to make a license plate scanning app as a school project. With that, we have comments and pictures which can be added to cargo. Whenever the user scans a plate they also get the chance to change the checked info in case of a mistake. The problem is that whenever we delete data from the scanned plate it doesn't show on the screen that it has been deleted until we go to another screen. The same goes for the lazy column which we use for inserting new instances of comments and pictures. The data doesn't show on screen until we turn our screen or go back to another screen. private val pictureList = mutableListOf() is what we use for the pictures and for the text we use var countryCode by remember { mutableStateOf(CountryCodeText) }
var licenseNumber by remember { mutableStateOf(LicenseNumberText) }. pictureList is a global variable and the other ones are local variables which use global variables in the mutableStateOf. How can we make sure that the UI updates whenever the data changes? In advance I want to say thanks for the help! (Code is written in Kotlin and jetpack compose)
Just replace the mutableListOf() with a mutableStateListOf(...), and prefer to keep all the state logic confined to a ViewModel. The viewmodel should preferably be only one for the entire app, and the entire app should have only one activity.
The viewmodel should act as a single source of truth for the entire activity's UI state, while also handling all the updates to the UI efficiently.
The #Composables should only be incharge of displaying the state, and sending events to the viewmodel to update the state, for example, an onClick event may be sent up to the viewmodel by a button too trigger a state change in another part of the app.
Take this codelab to learn all about state in Compose (Well, not all, really, but good starter).
Also, changing screens destroys all the #Composables of the current screen, and so when you ce back there, all the #Composables are re-created, and the correct data is fetched. If you wish to trigger "recompositions" upon changing a variable, you must ensure that the concerned variable is a state-holder, i.e., initialized with one of the pre-built state initializers, like mutableStateOf(), or mutableStateMapOf, etc.
We usually have a mutableState*Of format for determining whether a pre-built state initializer is available. The most common ones are covered, obviously, but if not, you'll need to create a new type of initializer yourself, and if that is not something you know how to do, currently, you can just go about checking whether the type of data you wish to store is Immutable. If so, you can just wrap it in a mutableStateOf<DataType>() call, and it will trigger the recompositions. Know that this is not as efficient as pre-built initializers, but definitely gets the job done.
Also, I suggest you take the compose-pathway to get the basics down. It covers everything ranging from creating a simple UI using basic pre-built Layouts to creating a complex animation-driven application using custom Layouts.
So, definitely a lot to take it, but I hope you get there.
Happy composing,
Relatively new to coding and have taken up lots of small projects to help learn the basics, and I have now set myself a challenge of a "bigger" one. Essentially I want to recreate the Message Box but with my own styling and customisable elements.
I have got the basics in a class and created it, however I want the class to have two options.
1) load all the details from an XML file for the message, I have done this and that works.
2) I want it to be like the standard message box where you can pass in parameters.
My question is, How can I achieve number 2.
I have tried adding details into the Show/Load subs but no luck, the only way around it I can see is with properties but that would take too long.
I want to be something like the below.
classname.show("message","tittle",icon,"buttons",imagefile,"caption")
However alot of my code is done in the load method as opposed to show, so it needs to be visible / accessible there.
Any help / advice would be appreciated.
Properties are definitely the way to go. It also makes sense: Conceptually, the message being shown is a property of the message box.
Your Show method would look like this:
Public Shared Show(message As String, title As String, ...)
Dim box as New MyMessageBoxWindow()
box.Message = message
box.Title = title
...
box.ShowDialog()
End Sub
In the Load method of MyMessageBoxWindow, you access these properties and configure the UI elements.
While executing my script in RFT, my script got failed due to the slight position change of a button. (This button's position slightly changes according to the option selected for previous combo box due to the label appearing near the button)
As there are 2 positions for this button in window, one of my script fails while other passes.
Please suggest how to identify this same object in 2 different places in RFT?
If you're alright with not using pre-mapped values and instead work with objects directly in code (which I've personally found to be extremely useful... it's allowed me to do great and wondrous things with RFT :), the following ought to work fine:
private void clickObject(String uniqueIdentifier) {
// Find object
RootTestObject root = RootTestObject.getRootTestObject();
TestObject[] matchingObjs = root.find(atProperty(".id", uniqueIdentifier));
if (matchingObjs.length > 0) {
// Click the object
((GuiTestObject) matchingObjs[0]).click();
}
// Clean-up
unregister(matchingObjs);
}
Feel free to replace ".id" with whatever property is best suited for the situation... since I work primarily with a web application, the ".id" property has worked splendidly for me.
Because the method finds the object anew each time, it'll grab the object's position wherever it's at at the time the method's called. The clean-up will also prevent any weird, horrible, and otherwise unfortunate UnregisteredObjectExceptions from cropping up.
Without looking at your pages I cannot be sure, but I think the buttons are actually two different buttons. Maybe they are generated by javascript, or they are just un-hidden after the option you select in the combobox.
If they are two different buttons (record them both and look at the recognition properties) you can either replace some properties with a regular expression or check wich button is visible/exists and then click it:
if (btn_button1.exists()) {
btn_button1.click();
} else if (btn_button2.exists()) {
btn_button1.click();
}
Here's a more complete tutorial on Object Recognition.
You can increase the tolerance of Rational Performance Tester AssureScript in the properties tab or you could set the description but hide the value. You can also make a custom code that updates the object map to prepare for this change in a java IF structure
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'm working with a document-based core-data OS X application. The problem I'm having is that whenever I edit any field on the document, after I press tab or click to something else (i.e. I finish editing/change focus), the document is marked as clean and undo is reset. When I try to save the file, however, the resulting document opens without the data I entered. What might be the problem, or, any pointers on where to look to fix this? Here's some stuff I know and things I've already tried:
I know it's not somehow saving because it never stops at the breakpoint in my overridden writeSafelyToURL:(NSURL *)inAbsoluteURL ofType:(NSString *)inTypeName forSaveOperation:(NSSaveOperationType)inSaveOperation error:(NSError **)outError and it also never sends an NSManagedObjectContextDidSaveNotification.
The documents are packaged in an NSFileWrapper directory with the core data store inside (and also some other files). I access the entities through an NSObjectController and a couple NSArrayControllers. It happens with both core data properties and manually registered changes in the rest of the file wrapper.
Update: At the suggestion of Martin, I tried NSUndoManager's notifications, and all I can seem to glean from it is that more than one undo manager is in play. If I add an observer for NSUndoManager, it won't post if I specify an object, and then if I don't, the notification object is not equal to [self undoManager]. I added updateChangeCount to my category on NSPersistentDocument, and it never gets called. setDocumentEdited basically confirmed that something about losing first responder is passing NO into that method. What could be causing this, and how can I fix it?
You could break on the method setDocumentEdited: of NSWindow to see which operation updates the change status.
In addition updateChangeCount: of NSDocument might be a place to take a look at.
NSUndoManager also posts several Notifications which can give additional hints what to look at.
The answer is actually pretty silly considering how long this stumped me. I was working on some objects on load, and I accidentally set [[self undoManager] disableUndoRegistration] at both the points where I should disable and enable. It was a little more than that, though. A related element in Interface Builder needed to be checked Prepares Content. When I had done both those things, the problem vanished.