Get attachments from Feature Service

Question

I have this feature service that used the Global ID to like to another table. I am able to get this table using a query and process the results. However I cant figure out how to get the attachments for this feature. The count always returns 0 even though the table hasAttachments property is true? I am missing something. I need to get and show the attachments (Photos) for a queried feature, but cant seem to get to them? This function is a result of a table connection query, Feature status changed event. function processQueryFeaturesResult(queryResult) { try { if (!queryResult || !queryResult.iterator.hasNext) { // No features returned console.log("No features returned") return } while (queryResult.iterator.hasNext) { var feature = queryResult.iterator.next() if (feature.attributes){ var objectID = feature.attributes.attributeValue("OBJECTID"); var GlobalID = String(feature.attributes.attributeValue("GlobalID")); //THESE values are indeed populated console.log("EdgeMapPageFieldSelected - processQueryFeaturesResult - objectID", objectID); console.log("EdgeMapPageFieldSelected - processQueryFeaturesResult - GlobalID", GlobalID); //THIS Results in - feature.attachments QmlAttachmentListModel(0x1ee425912e0) console.log("EdgeMapPageFieldSelected - processQueryFeaturesResult - feature.attachments", feature.attachments); //THIS Results in feature.attachments.count 0 console.log("EdgeMapPageFieldSelected - processQueryFeaturesResult - feature.attachments.count", feature.attachments.count); } } //The table that these results are queryied from HAS Attachmenst console.log("EdgeMapPageFieldSelected - processQueryFeaturesResult - onlineAttachmentsTable.hasAttachments :", onlineAttachmentsTable.hasAttachments); }‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍

MKa · Answer

This seems to at least get me the attachements. Doesn't seem to work offline however? I now need to display this attachment to the screen, but that should be easy if I put it in my display model. But I need to do this offline too, or remove this layer from my offline Web Map somehow. while (queryResult.iterator.hasNext) { var selectedFeature = queryResult.iterator.next() var attachmentListModel = selectedFeature.attachments; attachmentListModel.fetchAttachmentsStatusChanged.connect(function() { if(attachmentListModel.fetchAttachmentsStatus === Enums.TaskStatusCompleted){ console.log("fetchAttachmentsStatus - Loaded"); console.log(attachmentListModel.count); attachmentListModel.forEach(function(element, index, array) { element.fetchDataStatusChanged.connect(function(){ if(element.fetchDataStatus===Enums.TaskStatusCompleted){ console.log("fetchAttachmentsStatus - element.attachmentUrl - ", element.attachmentUrl); console.log(element.attachmentUrl); } }); element.fetchData(); }); } });‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍

MKa · Answer

I am using your code from above, but can never get my loadstatuschanged signal to trigger? Am I missing something. I have pretty much used the exact same code you have above, but don't ever see anything happen in the loadchanged area. That is were I want to collect the attachments that should be returning. I can confirm that the queryresult does iterate, but never hits that signal. What am i missing? property var featureList: [] // Process query results the same regardless of online / offline function processQueryFeaturesResult(queryResult) { console.log(" - processQueryFeaturesResult - Entered"); if (!queryResult || !queryResult.iterator.hasNext) { // No features returned console.log("No features returned") return } while (queryResult.iterator.hasNext) { var feature = queryResult.iterator.next() // add feature to array to avoid GC featureList.push(feature); var objectID = feature.attributes.attributeValue("OBJECTID"); var surveyGlobalID = String(feature.attributes.attributeValue("SurveyGlobalID")); console.log(" - processQueryFeaturesResult - objectID - ", objectID); console.log(" - processQueryFeaturesResult - surveyGlobalID - ", surveyGlobalID); // connect to loadStatusChanged signal //THIS NEVER SEEMS TO TRIGGER AND SHOW IN THE CONSOLE feature.loadStatusChanged.connect(function(){ console.log(" - processQueryFeaturesResult - feature.loadStatus - ", feature.loadStatus); if (feature.loadStatus === Enums.LoadStatusLoaded) { console.log(" - processQueryFeaturesResult - Enums.LoadStatusLoaded - ", feature.loadStatus); } }); // load the feature feature.load(); } return }‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍

LucasDanzinger · Answer

Can you try the following please:

- go to the web map item details page

- Settings

- Offline > Advanced Options

- Make sure you have the radio button checked that says "Device will download and get updates to features and attachments."

details here - https://doc.arcgis.com/en/arcgis-online/manage-data/take-maps-offline.htm#ESRI_SECTION1_6CE94B6639C44D5AB860FD74256387CA