Problem answer distribution will only return the answer_value.

analytics_data_api/fixtures/problem_response_answer_distribution.json

 [
     {
         "fields": {
-            "answer_value_numeric": 36.02736,
-            "answer_value_text": "36.02736",
+            "answer_value": "36.02736",
             "correct": false,
             "count": 1,
             "course_id": "EarthSciences/GP202/Spring2014",
@@ -19,8 +18,7 @@
     },
     {
         "fields": {
-            "answer_value_numeric": 33.0,
-            "answer_value_text": "33.0",
+            "answer_value": "33.0",
             "correct": false,
             "count": 1,
             "course_id": "EarthSciences/GP202/Spring2014",
@@ -37,8 +35,7 @@
     },
     {
         "fields": {
-            "answer_value_numeric": 27.51936482,
-            "answer_value_text": "27.51936482",
+            "answer_value": "27.51936482",
             "correct": true,
             "count": 1,
             "course_id": "EarthSciences/GP202/Spring2014",
@@ -55,8 +52,7 @@
     },
     {
         "fields": {
-            "answer_value_numeric": 28.65,
-            "answer_value_text": "28.65",
+            "answer_value": "28.65",
             "correct": true,
             "count": 1,
             "course_id": "EarthSciences/GP202/Spring2014",
@@ -73,8 +69,7 @@
     },
     {
         "fields": {
-            "answer_value_numeric": null,
-            "answer_value_text": "line 15: mean(glm.pred==Direction)",
+            "answer_value": "line 15: mean(glm.pred==Direction)",
             "correct": true,
             "count": 95,
             "course_id": "HumanitiesScience/StatLearning/Winter2014",
@@ -91,8 +86,7 @@
     },
     {
         "fields": {
-            "answer_value_numeric": null,
-            "answer_value_text": "line 22: Direction.2005=Smarket$Direction[!train]",
+            "answer_value": "line 22: Direction.2005=Smarket$Direction[!train]",
             "correct": false,
             "count": 1,
             "course_id": "HumanitiesScience/StatLearning/Winter2014",
@@ -109,8 +103,7 @@
     },
     {
         "fields": {
-            "answer_value_numeric": null,
-            "answer_value_text": "line 30: table(glm.pred,Direction.2005)",
+            "answer_value": "line 30: table(glm.pred,Direction.2005)",
             "correct": false,
             "count": 1,
             "course_id": "HumanitiesScience/StatLearning/Winter2014",
@@ -127,8 +120,7 @@
     },
     {
         "fields": {
-            "answer_value_numeric": 5.02,
-            "answer_value_text": null,
+            "answer_value": "5.02",
             "correct": true,
             "count": 95,
             "course_id": "edX/DemoX/Demo_Course",
@@ -145,8 +137,7 @@
     },
     {
         "fields": {
-            "answer_value_numeric": 62,
-            "answer_value_text": null,
+            "answer_value": "62",
             "correct": false,
             "count": 13,
             "course_id": "edX/DemoX/Demo_Course",
@@ -163,8 +154,7 @@
     },
     {
         "fields": {
-            "answer_value_numeric": 10.2,
-            "answer_value_text": null,
+            "answer_value": "10.2",
             "correct": false,
             "count": 100,
             "course_id": "edX/DemoX/Demo_Course",
@@ -181,8 +171,7 @@
     },
     {
         "fields": {
-            "answer_value_numeric": 5.02,
-            "answer_value_text": null,
+            "answer_value": null,
             "correct": true,
             "count": 5,
             "course_id": "edX/DemoX/Demo_Course",
@@ -199,8 +188,7 @@
     },
     {
         "fields": {
-            "answer_value_numeric": null,
-            "answer_value_text": null,
+            "answer_value": null,
             "correct": true,
             "count": 213,
             "course_id": "edX/DemoX/Demo_Course",
@@ -218,8 +206,7 @@
 
     {
         "fields": {
-            "answer_value_numeric": null,
-            "answer_value_text": "North America",
+            "answer_value": "North America",
             "correct": true,
             "count": 95,
             "course_id": "edX/DemoX/Demo_Course",
@@ -236,8 +223,7 @@
     },
     {
         "fields": {
-            "answer_value_numeric": null,
-            "answer_value_text": "Africa",
+            "answer_value": "Africa",
             "correct": false,
             "count": 13,
             "course_id": "edX/DemoX/Demo_Course",
@@ -254,8 +240,7 @@
     },
     {
         "fields": {
-            "answer_value_numeric": null,
-            "answer_value_text": "Asia",
+            "answer_value": "Asia",
             "correct": false,
             "count": 100,
             "course_id": "edX/DemoX/Demo_Course",

analytics_data_api/v0/models.py

@@ -105,8 +105,7 @@ class ProblemResponseAnswerDistribution(models.Model):
     correct = models.NullBooleanField()
     count = models.IntegerField()
     value_id = models.CharField(db_index=True, max_length=255, null=True)
-    answer_value_text = models.TextField(null=True)
-    answer_value_numeric = models.FloatField(null=True)
+    answer_value = models.TextField(null=True, db_column='answer_value_text')
     variant = models.IntegerField(null=True)
     problem_display_name = models.TextField(null=True)
     question_text = models.TextField(null=True)

analytics_data_api/v0/serializers.py

@@ -67,8 +67,7 @@ class ProblemResponseAnswerDistributionSerializer(ModelSerializerWithCreatedFiel
             'correct',
             'count',
             'value_id',
-            'answer_value_text',
-            'answer_value_numeric',
+            'answer_value',
             'problem_display_name',
             'question_text',
             'variant',

analytics_data_api/v0/views/problems.py

@@ -30,9 +30,7 @@ class ProblemResponseAnswerDistributionView(generics.ListAPIView):
             * count: The number of times the answer in this collection was
               given.
             * value_id: The ID of the answer in this collection.
-            * answer_value_text: The text of this answer, for text problems.
-            * answer_value_numeric: The number for this answer, for numeric
-              problems.
+            * answer_value: An answer for this problem.
             * problem_display_name: The display name for the specified problem.
             * question_text: The question for the specified problem.
             * variant: For randomized problems, the random seed used. If problem