topic Re: QML Javascript get Attachments in ArcGIS AppStudio Questions

QML Javascript get Attachments

JamesWallace1 — Fri, 15 May 2020 04:06:58 GMT

Hi Erwin,

I recently took the zoom class in appStudio. I was able to figure out quite a bit from the documentation, but I'm having a hard time with getting attachment information from the feature qml object. I'm trying to select a feature qml object from a featureLayer qml object and get the attachment info. After the Selection, whenever I do feature.attachments.count it returns 0 and I know that there are attachments. I know I can return the geometry of the feature and attributes, but having a hard time with attachments. It doesn't seem like the attachments QML List is asynchronous or that I need to do a fetch of any kind. I looked at the edit Attachment example on GitHub but for some reason I can't seem to replicate the example. I feel like it's something easy I'm missing. Thanks for any assistance.

James W.

Re: QML Javascript get Attachments

ErwinSoekianto — Fri, 15 May 2020 20:27:44 GMT

James,

How did you get the attachment? Can you show us some code snippet?

Are you using this method from ArcGIS Runtime SDK for Qt, AttachmentListModel QML Type | ArcGIS for Developers ?

Remember this is an asynchronous call, so we need check the status of the fetchAttachment operation, there is a chance that it is not completed yet, AttachmentListModel QML Type | ArcGIS for Developers

Thank you,

Erwin

Re: QML Javascript get Attachments

JamesWallace1 — Mon, 18 May 2020 20:57:43 GMT

Erwin thanks for getting back to me. I think I figured what my issue was. I wasn't letting the async finish before doing the count. This is my code snippet that gets me the attachment info, it seems.

feature.attachments.fetchAttachmentsStatusChanged.connect(function(){

if(feature.attachments.fetchAttachmentsStatus===Enums.TaskStatusCompleted){

console.log("the task has completed")

console.log(feature.attachments.count)

var firstAttachment = feature.attachments.get(0)

console.log(firstAttachment.name)

}else if(feature.attachments.fetchAttachmentsStatus!==Enums.TaskStatusCompleted){

console.log("task has not completed")

}

})?

Thanks,

James