javascript - Angular JS - $q.all() tracking individual upload progress -

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i'm using angular-file-upload module danialfarid (https://github.com/danialfarid/angular-file-upload) , works great.

i've been able integrate in wrapper service rest calls , can upload several images $q.all() , keeping track of progress.

however, can't correctly identify single images i'm uploading, because file identifier gets continuosly changed loop.

      uploadphotos: function (files) {          var deferred = $q.defer()         var queue = []          (var = 0; < files.length; i++) {           var file = files[i];           var = $upload.upload({             url: locationuri +'/photos',             file: file,             fileformdataname: 'image'           }).then(             function (data) {               console.log(data)             },             function (err) {               console.log(err)             },             function(evt) {               // progress events               console.log('percent: ' + parseint(100.0 * evt.loaded / evt.total));             }           )           queue.push(up)         }          $q.all(queue).then(           function (data) {             deferred.resolve(data)           },           function (err) {             deferred.reject(err)           }         )          return deferred.promise       }

this is, without surprise, confused output get:

    percent: 68 restfactory.js:359     percent: 100 restfactory.js:359     percent: 100 restfactory.js:359     percent: 14 restfactory.js:359     percent: 37 restfactory.js:359     percent: 52 restfactory.js:359     percent: 89 restfactory.js:359     percent: 100 restfactory.js:359     percent: 100 restfactory.js:359

do have idea how manage have like:

    file1 - percent: 68 restfactory.js:359     file1 - percent: 100 restfactory.js:359     file2 - percent: 100 restfactory.js:359

closures within loops tricky. closing on loop variable last value (e.g. see this question - , google more theory/details). want call function within loop:

for (var = 0; < files.length; i++) {     var = dotheupload(files[i]);     queue.push(up); }

and dotheupload() contains original code, returning promise , using correct file (i not know api, presume file.name contains file name; adjust appropriately):

function dotheupload(file) {       var = $upload.upload({         url: locationuri +'/photos',         file: file,         fileformdataname: 'image'       }).then(         function (data) {           console.log(data)         },         function (err) {           console.log(err)         },         function(evt) {           // progress events           console.log(file.name + ' percent: ' + parseint(100.0 * evt.loaded / evt.total));         }       );       return up; }

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