Add id to preview div in Dropzone.js

Question

I am trying to add an id attribute to every file uploaded to Dropzone.js, so I can sort it later.

This is my code:

Dropzone.options.pictureDropzone = {
  paramName: "file",
  addRemoveLinks: true,
  init: function() {
    this.on("success", function(file, response) {
        file.serverId = response.id;
        $(file.previewTemplate).find('.dz-preview').attr('id', "document-" + file.serverId);
    });
  }
};

Line

$(file.previewTemplate).find('.dz-preview').attr('id', "document-" + file.serverId);

Must add an id, but it does nothing. Tried this with prop ().

If I select another item, it works fine. for example, this works for .dz-details

$(file.previewTemplate).find('.dz-details').attr('id', "document-" + file.serverId);

But I cannot find a way to add it to the dz-preview element.



The HTML structure looks like this:

<div class="dz-preview dz-processing dz-image-preview dz-success">
    <div class="dz-details"> ... </div>
    <div class="dz-progress"> ... </div>
    <div class="dz-success-mark"> ... </div>
</div>

Thanks for the help:)

Answer 1

this.on("success", function(file, response) {
    file.serverId = response.id;
    $(".dz-preview:last-child").attr('id', "document-" + file.serverId);
});

Answer 2

I know this is old, but if someone is still looking for an answer: -

      this.on("success", function(file, response) {
          file.previewElement.id = response.id;
      });

Answer 3

, , javascript, :

$("#fileUpload${dropdown}").dropzone(
                {

                    url : "uploadAdditionalFile?name="+$("#fileUpload${dropdown} div:first-child").prop('id'),
                    addRemoveLinks : true,
                    maxFiles : 1,
                    init : function() {
                        var imageId = $("#fileUpload${dropdown} div:first-child").prop('id');
                        this.on("maxfilesexceeded",
                            function(file) {
                                    alert("Only one file can be uploaded at a time");
                                    this.removeFile(file);
                                        });
                                this.on("addedfile",
                                        function(file) {
                                            switch (file.type) {
                                            case 'application/pdf':
                                                this.emit("thumbnail",file,"/sbms/static/img/pdf.png");
                                                break;
                                            case 'application/msword':
                                                this.emit("thumbnail",file,"/sbms/static/img/word.png");
                                                break;
                                            }
                                        }
                                );
                                 this.on('removedfile', function(file){
                                     $.ajax({
                                            type : "GET",
                                            url : "removeAdditionalMediaPreviewForm?id="+imageId,
                                            dataType : "json",
                                            async : false,
                                            success : function(response) {
                                                if (response.status == 'SUCCESS') {
                                                    alert("File removed successfully.")
                                                }else {
                                                    alert("File not removed successfully.")
                                                }
                                            }
                                        });
                                }); 

                    },

                    success : function(file,response) {
                        var imgName = response;
                        file.previewElement.classList.add("dz-success");
                        console.log("Successfully uploaded :"+ imgName);
                    },
                    error : function(file,response, xhr) {
                        alert("Unable to upload file. Please check if it is a valid doc or pdf file.");
                        this.removeFile(file);
                    }
                });

imageId is a variable that stores the identifier and is used later when deleting a file.

Answer 4

Pass previewElementin jQuery object and do any action.

   this.on("success", function(file, response) {
      $(file.previewElement).attr("id", response.id);
  });