fix: issue with table sorting when column contains both string and numbers (#5458)

frontend/src/container/GridTableComponent/__tests__/utils.test.tsx

@@ -1,6 +1,10 @@
 import { Query } from 'types/api/queryBuilder/queryBuilderData';
 
-import { createColumnsAndDataSource, getQueryLegend } from '../utils';
+import {
+	createColumnsAndDataSource,
+	getQueryLegend,
+	sortFunction,
+} from '../utils';
 import {
 	expectedOutputWithLegends,
 	tableDataMultipleQueriesSuccessResponse,
@@ -39,4 +43,88 @@ describe('Table Panel utils', () => {
 		// should return undefined when legend not present
 		expect(getQueryLegend(query, 'B')).toBe(undefined);
 	});
+
+	it('sorter function for table sorting', () => {
+		let rowA: {
+			A: string | number;
+			timestamp: number;
+			key: string;
+		} = {
+			A: 22.4,
+			timestamp: 111111,
+			key: '1111',
+		};
+		let rowB: {
+			A: string | number;
+			timestamp: number;
+			key: string;
+		} = {
+			A: 'n/a',
+			timestamp: 111112,
+			key: '1112',
+		};
+		const item = {
+			isValueColumn: true,
+			name: 'A',
+			queryName: 'A',
+		};
+		// A has value and value is considered bigger than n/a hence 1
+		expect(sortFunction(rowA, rowB, item)).toBe(1);
+
+		rowA = {
+			A: 'n/a',
+			timestamp: 111111,
+			key: '1111',
+		};
+		rowB = {
+			A: 22.4,
+			timestamp: 111112,
+			key: '1112',
+		};
+
+		// B has value and value is considered bigger than n/a hence -1
+		expect(sortFunction(rowA, rowB, item)).toBe(-1);
+
+		rowA = {
+			A: 11,
+			timestamp: 111111,
+			key: '1111',
+		};
+		rowB = {
+			A: 22,
+			timestamp: 111112,
+			key: '1112',
+		};
+
+		// A and B has value , since B > A hence A-B
+		expect(sortFunction(rowA, rowB, item)).toBe(-11);
+
+		rowA = {
+			A: 'read',
+			timestamp: 111111,
+			key: '1111',
+		};
+		rowB = {
+			A: 'write',
+			timestamp: 111112,
+			key: '1112',
+		};
+
+		// A and B are strings so A is smaller than B because r comes before w hence -1
+		expect(sortFunction(rowA, rowB, item)).toBe(-1);
+
+		rowA = {
+			A: 'n/a',
+			timestamp: 111111,
+			key: '1111',
+		};
+		rowB = {
+			A: 'n/a',
+			timestamp: 111112,
+			key: '1112',
+		};
+
+		// A and B are strings n/a , since both of them are same hence 0
+		expect(sortFunction(rowA, rowB, item)).toBe(0);
+	});
 });

frontend/src/container/GridTableComponent/utils.ts

@@ -1,3 +1,4 @@
+/* eslint-disable sonarjs/cognitive-complexity */
 import { ColumnsType, ColumnType } from 'antd/es/table';
 import { ThresholdProps } from 'container/NewWidget/RightContainer/Threshold/types';
 import { QUERY_TABLE_CONFIG } from 'container/QueryTable/config';
@@ -105,6 +106,39 @@ export function getQueryLegend(
 	return legend;
 }
 
+export function sortFunction(
+	a: RowData,
+	b: RowData,
+	item: {
+		name: string;
+		queryName: string;
+		isValueColumn: boolean;
+	},
+): number {
+	// assumption :- number values is bigger than 'n/a'
+	const valueA = Number(a[`${item.name}_without_unit`] ?? a[item.name]);
+	const valueB = Number(b[`${item.name}_without_unit`] ?? b[item.name]);
+
+	// if both the values are numbers then return the difference here
+	if (!isNaN(valueA) && !isNaN(valueB)) {
+		return valueA - valueB;
+	}
+
+	// if valueB is a number then make it bigger value
+	if (isNaN(valueA) && !isNaN(valueB)) {
+		return -1;
+	}
+
+	// if valueA is number make it the bigger value
+	if (!isNaN(valueA) && isNaN(valueB)) {
+		return 1;
+	}
+
+	// if both of them are strings do the localecompare
+	return ((a[item.name] as string) || '').localeCompare(
+		(b[item.name] as string) || '',
+	);
+}
 export function createColumnsAndDataSource(
 	data: TableData,
 	currentQuery: Query,
@@ -123,18 +157,7 @@ export function createColumnsAndDataSource(
 				title: !isEmpty(legend) ? legend : item.name,
 				width: QUERY_TABLE_CONFIG.width,
 				render: renderColumnCell && renderColumnCell[item.name],
-				sorter: (a: RowData, b: RowData): number => {
-					const valueA = Number(a[`${item.name}_without_unit`] ?? a[item.name]);
-					const valueB = Number(b[`${item.name}_without_unit`] ?? b[item.name]);
-
-					if (!isNaN(valueA) && !isNaN(valueB)) {
-						return valueA - valueB;
-					}
-
-					return ((a[item.name] as string) || '').localeCompare(
-						(b[item.name] as string) || '',
-					);
-				},
+				sorter: (a: RowData, b: RowData): number => sortFunction(a, b, item),
 			};
 
 			return [...acc, column];