FieldConfig: support overrides model (#20986)

packages/grafana-ui/src/components/SingleStatShared/SingleStatBaseOptions.test.ts

@@ -36,4 +36,30 @@ describe('sharedSingleStatMigrationHandler', () => {
 
     expect(sharedSingleStatMigrationHandler(panel as any)).toMatchSnapshot();
   });
+
+  it('Remove unused `overrides` option', () => {
+    const panel = {
+      options: {
+        fieldOptions: {
+          unit: 'watt',
+          stat: 'last',
+          decimals: 5,
+          defaults: {
+            min: 0,
+            max: 100,
+            mappings: [],
+          },
+          override: {
+            min: 0,
+            max: 100,
+            mappings: [],
+          },
+        },
+      },
+      title: 'Usage',
+      type: 'bargauge',
+    };
+
+    expect(sharedSingleStatMigrationHandler(panel as any)).toMatchSnapshot();
+  });
 });

packages/grafana-ui/src/components/SingleStatShared/SingleStatBaseOptions.ts

@@ -12,6 +12,7 @@ import {
   VizOrientation,
   PanelModel,
   FieldDisplayOptions,
+  ConfigOverrideRule,
 } from '@grafana/data';
 
 export interface SingleStatBaseOptions {
@@ -33,7 +34,7 @@ export function sharedSingleStatPanelChangedHandler(
     const options = {
       fieldOptions: {
         defaults: {} as FieldConfig,
-        override: {} as FieldConfig,
+        overrides: [] as ConfigOverrideRule[],
         calcs: [reducer ? reducer.id : ReducerID.mean],
       },
       orientation: VizOrientation.Horizontal,
@@ -110,6 +111,20 @@ export function sharedSingleStatMigrationHandler(panel: PanelModel<SingleStatBas
     options = moveThresholdsAndMappingsToField(options);
   }
 
+  if (previousVersion < 6.6) {
+    // discard the old `override` options and enter an empty array
+    if (options.fieldOptions && options.fieldOptions.override) {
+      const { override, ...rest } = options.fieldOptions;
+      options = {
+        ...options,
+        fieldOptions: {
+          ...rest,
+          overrides: [],
+        },
+      };
+    }
+  }
+
   return options as SingleStatBaseOptions;
 }
 

packages/grafana-ui/src/components/SingleStatShared/__snapshots__/SingleStatBaseOptions.test.ts.snap

@@ -1,5 +1,22 @@
 // Jest Snapshot v1, https://goo.gl/fbAQLP
 
+exports[`sharedSingleStatMigrationHandler Remove unused \`overrides\` option 1`] = `
+Object {
+  "fieldOptions": Object {
+    "decimals": 5,
+    "defaults": Object {
+      "mappings": undefined,
+      "max": 100,
+      "min": 0,
+      "thresholds": undefined,
+    },
+    "overrides": Array [],
+    "stat": "last",
+    "unit": "watt",
+  },
+}
+`;
+
 exports[`sharedSingleStatMigrationHandler from old valueOptions model without pluginVersion 1`] = `
 Object {
   "fieldOptions": Object {