WIP: Upload issues

This PR collects all commits related to upload issues #30 (closed), #18 (closed), and others

app/templates/upload.html

@@ -17,4 +17,29 @@
     {{ dropzone.load_js() }}
     {{ dropzone.config(redirect_url=url_for('submit'), custom_options='addRemoveLinks: true') }}
     </p>
-{%  endblock %}
\ No newline at end of file
+<script type="text/javascript">
+    $(document).ready(function () {
+
+        alert("success 1");
+        console.log("3");
+
+        Dropzone.options.myAwesomeDropzone = {
+
+            success: function(file, response) {
+                console.log("5");
+                file.serverFileName = response.file_name;  // pass filename
+            },
+            removedfile: function (file, data) {  // triggered when remove file button was clicked
+                $.ajax({  // send AJAX request to Flask to remove file
+                    type:'POST',
+                    url:'/deletefile',
+                    data : {"filename" : file.serverFileName},  // pass filename
+                    success : function (data) {
+                        alert('File removed from server.')
+                    }
+                });
+            }
+        };
+    });
+</script>
+{%  endblock %}