add getAnnotation, fixes #2572

pandora/annotation/models.py

@@ -110,6 +110,10 @@ class Annotation(models.Model):
                 return True
         return False
 
+    @classmethod
+    def get(cls, id):
+        return cls.objects.get(public_id=id)
+
     def set_public_id(self):
         if self.id:
             public_id = Annotation.objects.filter(item=self.item, id__lt=self.id).count() + 1

pandora/annotation/views.py

@@ -6,7 +6,7 @@ from django.conf import settings
 
 from ox.utils import json
 from ox.django.decorators import login_required_json
-from ox.django.shortcuts import render_to_json_response, get_object_or_404_json, json_response
+from ox.django.shortcuts import render_to_json_response, get_object_or_404_json, json_response, HttpErrorJson
 
 
 from ox.django.api import actions
@@ -17,6 +17,14 @@ from item.models import Item
 import models
 from tasks import update_item, add_annotations
 
+def get_annotation_or_404_json(id):
+    try:
+        return models.Annotation.get(id)
+    except models.Annotation.DoesNotExist:
+        response = {'status': {'code': 404,
+                               'text': 'Annotation not found'}}
+        raise HttpErrorJson(response)
+
 def parse_query(data, user):
     query = {}
     query['range'] = [0, 100]
@@ -108,6 +116,22 @@ def findAnnotations(request, data):
     return render_to_json_response(response)
 actions.register(findAnnotations)
 
+def getAnnotation(request, data):
+    '''
+        takes {
+            id: string,
+            keys: [string]
+        }
+        returns {
+            key: value
+        }
+    '''
+    response = json_response({})
+    data['keys'] = data.get('keys', [])
+    annotation = get_annotation_or_404_json(data['id'])
+    response['data'] = annotation.json(keys=data['keys'], user=request.user)
+    return render_to_json_response(response)
+actions.register(getAnnotation)
 
 @login_required_json
 def addAnnotation(request, data):