If a document is uploaded with an existing annotation_sets field. New annotations should be appended to this field rather than overwritten.

[twinkarma]

Users can upload documents that have existing annotations either from other Teamware projects or from other GATE tools.

When exporting the document after it's been annotated on Teamware, new annotations should be appended to the annotation_sets field rather than overwritten.

For example, a user uploads this document:

{
  "id": 32,
  "text": "Document text",
  "text2": "Document text 2",
  "feature1": "Feature text",
  "annotation_sets":{
    "user1":{
       "name":"user1",
       "annotations":[
          {
             "type":"Document",
             "start":0,
             "end":10,
             "id":0,
             "features":{
                "sentiment": "positive"
                
             }
          }
       ],
       "next_annid":1
    }
  }
}

And an annotation has been made by user2 on our system with sentiment negative, this should be the output when exporting:

{
   "id":32,
   "text":"Document text",
   "text2":"Document text 2",
   "feature1":"Feature text",
   "annotation_sets":{
      "user1":{
         "name":"user1",
         "annotations":[
            {
               "type":"Document",
               "start":0,
               "end":10,
               "id":0,
               "features":{
                  "sentiment":"positive"
               }
            }
         ],
         "next_annid":1
      },
      "user2":{
         "name":"user2",
         "annotations":[
            {
               "type":"Document",
               "start":0,
               "end":10,
               "id":0,
               "features":{
                  "sentiment":"negative"
               }
            }
         ],
         "next_annid":1
      }
   }
}

If the user name/id of the annotator already exists in the document, should the annotation be overwritten or would you just append it to the list of their annotations e.g.

{
   "id":32,
   "text":"Document text",
   "text2":"Document text 2",
   "feature1":"Feature text",
   "annotation_sets":{
      "user1":{
         "name":"user1", 
         "annotations":[
            {
               "type":"Document",
               "start":0,
               "end":10,
               "id":0,
               "features":{
                  "sentiment":"positive"
               }
            },
            {
               "type":"Document",
               "start":0,
               "end":10,
               "id":0,
               "features":{
                  "sentiment":"negative"
               }
            }
         ],
         "next_annid":1
      },
    
   }
}

and if so, what if there's an id conflict like the above example?