javascript Dropzone.js 以编程方式调用 accept() 函数
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Dropzone.js invoke accept() function programmatically
提问by Juuro
I use Dropzone.jsand I implemented a custom constraint for files that rejects files with the same filename. Heres my code of the initialisation:
我使用Dropzone.js并为拒绝具有相同文件名的文件的文件实施了自定义约束。这是我的初始化代码：
var myDropzone = new Dropzone("div#myId", {
url: MpgCommon.app.route('upload_files_path'),
addRemoveLinks: true,
thumbnailWidth: "80",
thumbnailHeight: "80",
dictCancelUpload: "Cancel",
parallelUploads: 12,
uploadMultiple: false,
autoProcessQueue: false,
accept: function(file, done) {
var selected_filenames = $.map(myDropzone.files, function(selected_file) {
return (selected_file.name.replace(/\.[^.]+$/, ''));
});
var filename = file.name.replace(/\.[^.]+$/, '')
if ($.inArray(filename, selected_filenames) != selected_filenames.length-1){
var error_msg = "Error!";
$('.edit_tooltip .gui_message.error').css({display: "block"}).html(error_msg);
done(error_msg);
}
else {
$('.edit_tooltip .gui_message.error').css({display: "none"}).html('');
done();
}
}
});
Now it seems that the accept function is called when a file is added but not when a file is removed from the dropzone. So is it possible to invoke the accept function programmtically?
现在似乎在添加文件时调用了 accept 函数，而不是在从放置区中删除文件时调用了该函数。那么是否可以以编程方式调用接受函数？
I tried this, but it dosn't work:
我试过这个，但它不起作用：
myDropzone.on("removedfile", function(file) {
var rejected_files = myDropzone.getRejectedFiles();
console.log(rejected_files);
rejected_files.forEach(function () {
console.log(this);
myDropzone.accept(this);
});
});
The error I get in the console is:
我在控制台中得到的错误是：
TypeError: done is not a function
if ( args ) {
采纳答案by enyo
I responded to this question on github: https://github.com/enyo/dropzone/issues/257
我在github上回答过这个问题：https: //github.com/enyo/dropzone/issues/257
回答by Ian Newland
This is a less than optimal solution, but I've found that if you mimic the drop functionality with your existing files programmatically, you can achieve a similar result of 'reprocessing existing files'.
这是一个不太理想的解决方案，但我发现如果您以编程方式模拟现有文件的放置功能，您可以获得类似“重新处理现有文件”的结果。
This involves storing the files to a variable, removing the files from the Dropzone object and adding the file(s) back in. From your javascript file do:
这涉及将文件存储到变量中，从 Dropzone 对象中删除文件并将文件重新添加。从您的 javascript 文件中执行以下操作：
// Single file example. For multiple use dropzone.addFiles(dropzone.files);
var singleFile = dropzone.files[0];
if (singleFile) {
dropzone.removeAllFiles(false);
dropzone.addFile(singleFile);
}
