see Find attachments using task in JavaScript API
But I've sort of moved on, so I thought I'd open a new thread.
So, (as every sentence has to start with "so" these days)
I am detecting if my layers have attachments on load with a call to the REST thingy, this is stored in an array, with the array index matching the LayerID
When I go through the records returned in the results dataset of an ID task, I check the layerID of returned record against this array and if it has attachments I then do stuff.
That's my first issue. I used something like this
if (layerHasAttachments) {
objectId = results.feature.attributes.OBJECTID;
t = mapservice2 + "/" + results.layerId.toString();
featureLayer = new esri.layers.FeatureLayer(t, {
mode: esri.layers.FeatureLayer.MODE_ONDEMAND
});
//use queryAttachmentInfos to return into array the path of each attachment
featureLayer.queryAttachmentInfos(objectId, function (infos) {
if (infos.length > 0) {
for (index = 0; index < infos.length; ++index) {
attachmentPath.push(infos[index].url)
}
}
console.debug(2);
}
);
console.debug(3);
}However, the code carried on before the results came in -0 I get my debug 3, before my debug 2 - so I have issues then deciding if action is needed if a feature has an attachment. - So, first issue, how can I wait for the info from the "queryAttachmentInfos" before moving on?
I had to move on, so every feature in that is in the results dataset that is in a layer that is enabled for attachments has a button next to the result. This opens a popup where I show the photos (currently we only have photos, so I haven't done the code to detect attachment type). My code is
featureLayer.queryAttachmentInfos(objectId, function (infos) {
imagePopupHTML = "<!DOCTYPE html><html xmlns='http://www.w3.org/1999/xhtml\'><head><title></title></head>'";
if (infos.length > 0) {
for (index = 0; index < infos.length; ++index) {
attachmentPath.push(infos[index].url)
console.debug(infos[index])
}
}
for (index = 0; index < attachmentPath.length; ++index) {
imagePopupHTML += "<a href='" + attachmentPath[index] + "'>"
imagePopupHTML += "<img src='" + attachmentPath[index] + "' style='width:600px'></a></br>"
}
imagePopupHTML += "<body></body></html>"
OpenWindowThumb = window.open("", "thumb", "height=" + popY + ", width=" + popX + ",toolbar=no,scrollbars=yes,menubar=no,resizable=yes");
OpenWindowThumb.document.getElementsByTagName('body')[0].innerHTML = 'Please Wait';
OpenWindowThumb.focus()
OpenWindowThumb.document.getElementsByTagName('body')[0].innerHTML = '';
OpenWindowThumb.document.write(imagePopupHTML);
}
);
So I get the URL and fling it into an basic HTML page - not elegant, but I am pushed for time and needed to show people that field collected data from Collector can be seen in the office in our browser mapping.
If I use the raw URL for an image in Chrome, it detects the orientation. IE doesn't. So I am guessing that some metadata is stored with the image. I have failed totally in getting it. I tried a few add on chunks of code, but they didn't return what I was after. So, that's the next question - Is it possible to query the server to get image rotation info (and other metadata)
Many thanks
ACM
