feat(cubejs-client-core): Fill missing dates with custom measure value

docs/pages/reference/frontend/cubejs-client-core.mdx

@@ -838,7 +838,8 @@ resultSet.tablePivot({
 Name | Type | Description |
 ------ | ------ | ------ |
 aliasSeries? | string[] | Give each series a prefix alias. Should have one entry for each query:measure. See [chartPivot](#result-set-chart-pivot) |
-fillMissingDates? | boolean | null | **`true` by default.** If set to `true`, missing dates on the time dimensions will be filled with `0` for all measures. Note: setting this option to `true` will override any `order` applied to the query. |
+fillMissingDates? | boolean | null | **`true` by default.** If set to `true`, missing dates on the time dimensions will be filled with `fillWithValue` or `0` by default for all measures. Note: setting this option to `true` will override any `order` applied to the query. |
+fillWithValue? | string | null | Value to autofill all the missing date's measure. |
 x? | string[] | Dimensions to put on **x** or **rows** axis. |
 y? | string[] | Dimensions to put on **y** or **columns** axis. |
 
@@ -1055,4 +1056,4 @@ values? | never |
 [link-mdn-max-safe-integer]: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Number/MAX_SAFE_INTEGER
 
 [ref-query-format]: /product/apis-integrations/rest-api/query-format
-[ref-security]: /product/auth
+[ref-security]: /product/auth

packages/cubejs-client-core/index.d.ts

@@ -252,9 +252,13 @@ declare module '@cubejs-client/core' {
      */
     y?: string[];
     /**
-     * If `true` missing dates on the time dimensions will be filled with `0` for all measures.Note: the `fillMissingDates` option set to `true` will override any **order** applied to the query
+     * If `true` missing dates on the time dimensions will be filled with fillWithValue or `0` by default for all measures.Note: the `fillMissingDates` option set to `true` will override any **order** applied to the query
      */
     fillMissingDates?: boolean | null;
+    /**
+     * Value to autofill all the missing date's measure.
+     */
+    fillWithValue?: string | null;
     /**
      * Give each series a prefix alias. Should have one entry for each query:measure. See [chartPivot](#result-set-chart-pivot)
      */

packages/cubejs-client-core/src/ResultSet.js

@@ -341,7 +341,7 @@ class ResultSet {
     const pivotImpl = (resultIndex = 0) => {
       let groupByXAxis = groupByToPairs(({ xValues }) => this.axisValuesString(xValues));
 
-      const measureValue = (row, measure) => row[measure] || 0;
+      const measureValue = (row, measure) => row[measure] || pivotConfig.fillWithValue || 0;
 
       if (
         pivotConfig.fillMissingDates &&

packages/cubejs-client-core/src/tests/ResultSet.test.js

@@ -1418,6 +1418,126 @@ describe('ResultSet', () => {
       ]);
     });
 
+    test('fill missing dates with custom value', () => {
+          const resultSet = new ResultSet({
+            query: {
+              measures: ['Orders.total'],
+              timeDimensions: [
+                {
+                  dimension: 'Orders.createdAt',
+                  granularity: 'day',
+                  dateRange: ['2020-01-08T00:00:00.000', '2020-01-11T23:59:59.999']
+                }
+              ],
+              filters: [],
+              timezone: 'UTC'
+            },
+            data: [
+              {
+                'Orders.createdAt': '2020-01-08T00:00:00.000',
+                'Orders.total': 1
+              },
+              {
+                'Orders.createdAt': '2020-01-10T00:00:00.000',
+                'Orders.total': 10
+              }
+            ],
+            annotation: {
+              measures: {},
+              dimensions: {},
+              segments: {},
+              timeDimensions: {
+                'Orders.createdAt': {
+                  title: 'Orders Created at',
+                  shortTitle: 'Created at',
+                  type: 'time'
+                }
+              }
+            }
+          });
+
+          expect(resultSet.tablePivot({
+            'fillWithValue': 5
+          })).toEqual([
+            {
+              'Orders.createdAt.day': '2020-01-08T00:00:00.000',
+              'Orders.total': 1
+            },
+            {
+              'Orders.createdAt.day': '2020-01-09T00:00:00.000',
+              'Orders.total': 5
+            },
+            {
+              'Orders.createdAt.day': '2020-01-10T00:00:00.000',
+              'Orders.total': 10
+            },
+            {
+              'Orders.createdAt.day': '2020-01-11T00:00:00.000',
+              'Orders.total': 5
+            }
+          ]);
+        });
+
+    test('fill missing dates with custom string', () => {
+              const resultSet = new ResultSet({
+                query: {
+                  measures: ['Orders.total'],
+                  timeDimensions: [
+                    {
+                      dimension: 'Orders.createdAt',
+                      granularity: 'day',
+                      dateRange: ['2020-01-08T00:00:00.000', '2020-01-11T23:59:59.999']
+                    }
+                  ],
+                  filters: [],
+                  timezone: 'UTC'
+                },
+                data: [
+                  {
+                    'Orders.createdAt': '2020-01-08T00:00:00.000',
+                    'Orders.total': 1
+                  },
+                  {
+                    'Orders.createdAt': '2020-01-10T00:00:00.000',
+                    'Orders.total': 10
+                  }
+                ],
+                annotation: {
+                  measures: {},
+                  dimensions: {},
+                  segments: {},
+                  timeDimensions: {
+                    'Orders.createdAt': {
+                      title: 'Orders Created at',
+                      shortTitle: 'Created at',
+                      type: 'time'
+                    }
+                  }
+                }
+              });
+
+              expect(resultSet.tablePivot({
+                'fillWithValue': 'N/A'
+              })).toEqual([
+                {
+                  'Orders.createdAt.day': '2020-01-08T00:00:00.000',
+                  'Orders.total': 1
+                },
+                {
+                  'Orders.createdAt.day': '2020-01-09T00:00:00.000',
+                  'Orders.total': "N/A"
+                },
+                {
+                  'Orders.createdAt.day': '2020-01-10T00:00:00.000',
+                  'Orders.total': 10
+                },
+                {
+                  'Orders.createdAt.day': '2020-01-11T00:00:00.000',
+                  'Orders.total': "N/A"
+                }
+              ]);
+            });
+
     test('same dimension and time dimension without granularity', () => {
       const resultSet = new ResultSet({
         query: {