CSV Export: FieldType.other objects will be stringified (#113854)

packages/grafana-data/src/utils/csv.test.ts

@@ -181,6 +181,26 @@ describe('DataFrame to CSV', () => {
     `);
   });
 
+  it('should handle field type other', () => {
+    const dataFrame = new MutableDataFrame({
+      fields: [
+        { name: 'Time', values: [1589455688623, 1589455692345] },
+        {
+          name: 'Value',
+          type: FieldType.other,
+          values: [{ text: 'value1' }, { text: 'value2' }],
+        },
+      ],
+    });
+
+    const csv = toCSV([dataFrame]);
+    expect(csv).toMatchInlineSnapshot(`
+      ""Time","Value"
+      1589455688623,"{""text"":""value1""}"
+      1589455692345,"{""text"":""value2""}""
+    `);
+  });
+
   it('should handle null values', () => {
     const dataFrame = new MutableDataFrame({
       fields: [

packages/grafana-data/src/utils/csv.ts

@@ -1,5 +1,5 @@
 // Libraries
-import { defaults } from 'lodash';
+import { defaults, isObject } from 'lodash';
 import Papa, { ParseConfig, Parser, ParseResult } from 'papaparse';
 
 // Types
@@ -317,6 +317,10 @@ export function toCSV(data: DataFrame[], config?: CSVConfig): string {
               v = v.value;
             }
 
+            if (fields[j].type === FieldType.other && isObject(v)) {
+              v = JSON.stringify(v);
+            }
+
             csv += writers[j](v);
           }
         }