Details
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Bug
-
Resolution: Fixed
-
P1: Critical
-
6.8.0
-
All
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cca0b460f (dev)
Description
The array (QVariantList) returned from C++ to QML is not reflecting the changes made in QML/JS when we attempt to assign a new value to an item.
- We have an array of objects returned from C++, and when we assign a new value to an item in that array, the item's value does not update at all, remaining as the original value instead.
C++:
QVariantList Contacts::getContacts() const { return QVariantList { QVariantMap { {"name", "Alice Smith"}, {"email", "alice@example.com"}, {"phone", "123-456-7890"} }, QVariantMap { {"name", "Bob Johnson"}, {"email", "bob@example.com"}, {"phone", "987-654-3210"} }, QVariantMap { {"name", "Charlie Brown"}, {"email", "charlie@example.com"}, {"phone", "555-555-5555"} } }; }
QML:
Window {
width: 640; height: 480
visible: true
Contacts { id: contactsModel }
Component.onCompleted:{
const items = contactsModel.getContacts()
console.log("Original List", JSON.stringify(items))
console.log("Before item 1 modified", JSON.stringify(items[0]))
items[0].email = "This Email Should Mutate"
console.log("After item 1 modified", JSON.stringify(items[0]))
}
}
Output log:
Original List [{"email":"alice@example.com","name":"Alice Smith","phone":"123-456-7890"},{"email":"bob@example.com","name":"Bob Johnson","phone":"987-654-3210"},{"email":"charlie@example.com","name":"Charlie Brown","phone":"555-555-5555"}]
Before item 1 modified {"email":"alice@example.com","name":"Alice Smith","phone":"123-456-7890"}
After item 1 modified {"email":"alice@example.com","name":"Alice Smith","phone":"123-456-7890"}
