Merge pull request #14928 from Budibase/allow-fields-on-counts

Allow fields on count calculations.

packages/backend-core/src/sql/sql.ts

@@ -1091,7 +1091,14 @@ class InternalBuilder {
             )
           }
         } else {
-          query = query.count(`* as ${aggregation.name}`)
+          if (this.client === SqlClient.ORACLE) {
+            const field = this.convertClobs(`${tableName}.${aggregation.field}`)
+            query = query.select(
+              this.knex.raw(`COUNT(??) as ??`, [field, aggregation.name])
+            )
+          } else {
+            query = query.count(`${aggregation.field} as ${aggregation.name}`)
+          }
         }
       } else {
         const fieldSchema = this.getFieldSchema(aggregation.field)

packages/server/src/api/controllers/view/viewsV2.ts

@@ -12,6 +12,8 @@ import {
   RelationSchemaField,
   ViewFieldMetadata,
   CalculationType,
+  CountDistinctCalculationFieldMetadata,
+  CountCalculationFieldMetadata,
 } from "@budibase/types"
 import { builderSocket, gridSocket } from "../../../websockets"
 import { helpers } from "@budibase/shared-core"
@@ -22,27 +24,31 @@ function stripUnknownFields(
   if (helpers.views.isCalculationField(field)) {
     if (field.calculationType === CalculationType.COUNT) {
       if ("distinct" in field && field.distinct) {
-        return {
-          order: field.order,
-          width: field.width,
-          visible: field.visible,
-          readonly: field.readonly,
-          icon: field.icon,
-          distinct: field.distinct,
-          calculationType: field.calculationType,
-          field: field.field,
-          columns: field.columns,
-        }
+        const strippedField: RequiredKeys<CountDistinctCalculationFieldMetadata> =
+          {
+            order: field.order,
+            width: field.width,
+            visible: field.visible,
+            readonly: field.readonly,
+            icon: field.icon,
+            distinct: field.distinct,
+            calculationType: field.calculationType,
+            field: field.field,
+            columns: field.columns,
+          }
+        return strippedField
       } else {
-        return {
+        const strippedField: RequiredKeys<CountCalculationFieldMetadata> = {
           order: field.order,
           width: field.width,
           visible: field.visible,
           readonly: field.readonly,
           icon: field.icon,
           calculationType: field.calculationType,
+          field: field.field,
           columns: field.columns,
         }
+        return strippedField
       }
     }
     const strippedField: RequiredKeys<ViewCalculationFieldMetadata> = {

packages/server/src/api/routes/tests/viewV2.spec.ts

@@ -693,6 +693,12 @@ describe.each([
                 calculationType: CalculationType.COUNT,
                 field: "Price",
               },
+              countDistinct: {
+                visible: true,
+                calculationType: CalculationType.COUNT,
+                distinct: true,
+                field: "Price",
+              },
               min: {
                 visible: true,
                 calculationType: CalculationType.MIN,
@@ -708,11 +714,6 @@ describe.each([
                 calculationType: CalculationType.AVG,
                 field: "Price",
               },
-              sum2: {
-                visible: true,
-                calculationType: CalculationType.SUM,
-                field: "Price",
-              },
             },
           },
           {
@@ -763,18 +764,20 @@ describe.each([
               count: {
                 visible: true,
                 calculationType: CalculationType.COUNT,
+                field: "Price",
               },
               count2: {
                 visible: true,
                 calculationType: CalculationType.COUNT,
+                field: "Price",
               },
             },
           },
           {
             status: 400,
             body: {
               message:
-                'Duplicate calculation on field "*", calculation type "count"',
+                'Duplicate calculation on field "Price", calculation type "count"',
             },
           }
         )
@@ -805,7 +808,7 @@ describe.each([
             status: 400,
             body: {
               message:
-                'Duplicate calculation on field "Price", calculation type "count"',
+                'Duplicate calculation on field "Price", calculation type "count distinct"',
             },
           }
         )
@@ -820,6 +823,7 @@ describe.each([
             count: {
               visible: true,
               calculationType: CalculationType.COUNT,
+              field: "Price",
             },
             count2: {
               visible: true,
@@ -831,6 +835,26 @@ describe.each([
         })
       })
 
+      it("does not confuse counts on different fields in the duplicate check", async () => {
+        await config.api.viewV2.create({
+          tableId: table._id!,
+          name: generator.guid(),
+          type: ViewV2Type.CALCULATION,
+          schema: {
+            count: {
+              visible: true,
+              calculationType: CalculationType.COUNT,
+              field: "Price",
+            },
+            count2: {
+              visible: true,
+              calculationType: CalculationType.COUNT,
+              field: "Category",
+            },
+          },
+        })
+      })
+
       !isLucene &&
         it("does not get confused when a calculation field shadows a basic one", async () => {
           const table = await config.api.table.save(
@@ -1607,6 +1631,7 @@ describe.each([
             view.schema!.count = {
               visible: true,
               calculationType: CalculationType.COUNT,
+              field: "age",
             }
             await config.api.viewV2.update(view)
 
@@ -3761,6 +3786,51 @@ describe.each([
               expect(rows[0].sum).toEqual(55)
             })
 
+            it("should be able to count non-numeric fields", async () => {
+              const table = await config.api.table.save(
+                saveTableRequest({
+                  schema: {
+                    firstName: {
+                      type: FieldType.STRING,
+                      name: "firstName",
+                    },
+                    lastName: {
+                      type: FieldType.STRING,
+                      name: "lastName",
+                    },
+                  },
+                })
+              )
+
+              const view = await config.api.viewV2.create({
+                tableId: table._id!,
+                name: generator.guid(),
+                type: ViewV2Type.CALCULATION,
+                schema: {
+                  count: {
+                    visible: true,
+                    calculationType: CalculationType.COUNT,
+                    field: "firstName",
+                  },
+                },
+              })
+
+              await config.api.row.bulkImport(table._id!, {
+                rows: [
+                  { firstName: "Jane", lastName: "Smith" },
+                  { firstName: "Jane", lastName: "Doe" },
+                  { firstName: "Alice", lastName: "Smith" },
+                ],
+              })
+
+              const { rows } = await config.api.viewV2.search(view.id, {
+                query: {},
+              })
+
+              expect(rows).toHaveLength(1)
+              expect(rows[0].count).toEqual(3)
+            })
+
             it("should be able to filter rows on the view itself", async () => {
               const table = await config.api.table.save(
                 saveTableRequest({

packages/server/src/sdk/app/rows/search/internal/sqs.ts

@@ -351,6 +351,7 @@ export async function search(
           aggregations.push({
             name: key,
             calculationType: field.calculationType,
+            field: mapToUserColumn(field.field),
           })
         }
       } else {

packages/server/src/sdk/app/views/index.ts

@@ -61,42 +61,77 @@ export function isView(view: any): view is ViewV2 {
   return view.id && docIds.isViewId(view.id) && view.version === 2
 }
 
-async function guardCalculationViewSchema(
-  table: Table,
-  view: Omit<ViewV2, "id" | "version">
-) {
+function guardDuplicateCalculationFields(view: Omit<ViewV2, "id" | "version">) {
+  const seen: Record<string, Record<CalculationType, boolean>> = {}
   const calculationFields = helpers.views.calculationFields(view)
+  for (const name of Object.keys(calculationFields)) {
+    const schema = calculationFields[name]
+    const isCount = schema.calculationType === CalculationType.COUNT
+    const isDistinct = "distinct" in schema
 
-  if (Object.keys(calculationFields).length > 5) {
-    throw new HTTPError(
-      "Calculation views can only have a maximum of 5 fields",
-      400
-    )
+    if (isCount && isDistinct) {
+      // We do these separately.
+      continue
+    }
+
+    if (seen[schema.field]?.[schema.calculationType]) {
+      throw new HTTPError(
+        `Duplicate calculation on field "${schema.field}", calculation type "${schema.calculationType}"`,
+        400
+      )
+    }
+    seen[schema.field] ??= {} as Record<CalculationType, boolean>
+    seen[schema.field][schema.calculationType] = true
   }
+}
 
+function guardDuplicateCountDistinctFields(
+  view: Omit<ViewV2, "id" | "version">
+) {
   const seen: Record<string, Record<CalculationType, boolean>> = {}
-
+  const calculationFields = helpers.views.calculationFields(view)
   for (const name of Object.keys(calculationFields)) {
     const schema = calculationFields[name]
     const isCount = schema.calculationType === CalculationType.COUNT
-    const isDistinct = isCount && "distinct" in schema && schema.distinct
+    if (!isCount) {
+      continue
+    }
 
-    const field = isCount && !isDistinct ? "*" : schema.field
-    if (seen[field]?.[schema.calculationType]) {
+    const isDistinct = "distinct" in schema
+    if (!isDistinct) {
+      // We do these separately.
+      continue
+    }
+
+    if (seen[schema.field]?.[schema.calculationType]) {
       throw new HTTPError(
-        `Duplicate calculation on field "${field}", calculation type "${schema.calculationType}"`,
+        `Duplicate calculation on field "${schema.field}", calculation type "${schema.calculationType} distinct"`,
         400
       )
     }
-    seen[field] ??= {} as Record<CalculationType, boolean>
-    seen[field][schema.calculationType] = true
+    seen[schema.field] ??= {} as Record<CalculationType, boolean>
+    seen[schema.field][schema.calculationType] = true
+  }
+}
 
-    // Count fields that aren't distinct don't need to reference another field,
-    // so we don't validate it.
-    if (isCount && !isDistinct) {
-      continue
-    }
+async function guardCalculationViewSchema(
+  table: Table,
+  view: Omit<ViewV2, "id" | "version">
+) {
+  const calculationFields = helpers.views.calculationFields(view)
+
+  guardDuplicateCalculationFields(view)
+  guardDuplicateCountDistinctFields(view)
+
+  if (Object.keys(calculationFields).length > 5) {
+    throw new HTTPError(
+      "Calculation views can only have a maximum of 5 fields",
+      400
+    )
+  }
 
+  for (const name of Object.keys(calculationFields)) {
+    const schema = calculationFields[name]
     if (!schema.field) {
       throw new HTTPError(
         `Calculation field "${name}" is missing a "field" property`,
@@ -112,6 +147,7 @@ async function guardCalculationViewSchema(
       )
     }
 
+    const isCount = schema.calculationType === CalculationType.COUNT
     if (!isCount && !isNumeric(targetSchema.type)) {
       throw new HTTPError(
         `Calculation field "${name}" references field "${schema.field}" which is not a numeric field`,

packages/types/src/documents/app/view.ts

@@ -54,12 +54,12 @@ export interface NumericCalculationFieldMetadata
 
 export interface CountCalculationFieldMetadata extends BasicViewFieldMetadata {
   calculationType: CalculationType.COUNT
+  field: string
 }
 
 export interface CountDistinctCalculationFieldMetadata
   extends CountCalculationFieldMetadata {
   distinct: true
-  field: string
 }
 
 export type ViewCalculationFieldMetadata =

packages/types/src/sdk/row.ts

@@ -18,11 +18,11 @@ export interface NumericAggregation extends BaseAggregation {
 
 export interface CountAggregation extends BaseAggregation {
   calculationType: CalculationType.COUNT
+  field: string
 }
 
 export interface CountDistinctAggregation extends CountAggregation {
   distinct: true
-  field: string
 }
 
 export type Aggregation =