feat: on column LTAR creation - hide LTAR and add rollup(MM and HM)

Signed-off-by: Pranav C <pranavxc@gmail.com>

packages/nocodb/src/helpers/columnHelpers.ts

@@ -1,5 +1,6 @@
 import { customAlphabet } from 'nanoid';
 import { UITypes } from 'nocodb-sdk';
+import { GridViewColumn, RollupColumn } from '../models'
 import Column from '../models/Column';
 import { getUniqueColumnAliasName } from '../helpers/getUniqueName';
 import validateParams from '../helpers/validateParams';
@@ -61,7 +62,7 @@ export async function createHmAndBtColumn(
       await parent.getColumns(),
       type === 'hm' ? alias : `${child.title} List`,
     );
-    await Column.insert({
+    const col = await Column.insert({
       title,
       fk_model_id: parent.id,
       uidt: UITypes.LinkToAnotherRecord,
@@ -74,6 +75,11 @@ export async function createHmAndBtColumn(
       fk_col_name: fkColName,
       fk_index_name: fkColName,
     });
+
+    if (!isSystemCol)
+      await populateRollupForLTAR({
+        column: col,
+      });
   }
 }
 
@@ -206,3 +212,35 @@ export const generateFkName = (parent: TableType, child: TableType) => {
     .slice(0, 10)}_${randomID(15)}`;
   return constraintName;
 };
+
+
+
+export async function populateRollupForLTAR({ column }: { column: Column }) {
+  const model = await column.getModel();
+
+  const views = await model.getViews();
+
+  const relatedModel = await column
+    .getColOptions<LinkToAnotherRecordColumn>()
+    .then((colOpt) => colOpt.getRelatedTable());
+  await relatedModel.getColumns();
+  const pkId =
+    relatedModel.primaryKey?.id || (await relatedModel.getColumns())[0]?.id;
+
+  await Column.insert<RollupColumn>({
+    uidt: 'Rollup',
+    title: getUniqueColumnAliasName(
+      await model.getColumns(),
+      `${relatedModel.title} Count`,
+    ),
+    fk_rollup_column_id: pkId,
+    fk_model_id: model.id,
+    rollup_function: 'count',
+    fk_relation_column_id: column.id,
+  });
+
+  const viewCol = await GridViewColumn.list(views[0].id).then((cols) =>
+    cols.find((c) => c.fk_column_id === column.id),
+  );
+  await GridViewColumn.update(viewCol.id, { show: false });
+}

packages/nocodb/src/services/columns.service.ts

@@ -12,13 +12,13 @@ import formulaQueryBuilderv2 from '../db/formulav2/formulaQueryBuilderv2';
 import ProjectMgrv2 from '../db/sql-mgr/v2/ProjectMgrv2';
 import {
   createHmAndBtColumn,
-  generateFkName,
+  generateFkName, populateRollupForLTAR,
   randomID,
   validateLookupPayload,
   validatePayload,
   validateRequiredField,
   validateRollupPayload,
-} from '../helpers';
+} from '../helpers'
 import { NcError } from '../helpers/catchError';
 import getColumnPropsFromUIDT from '../helpers/getColumnPropsFromUIDT';
 import {
@@ -32,6 +32,7 @@ import {
   Base,
   Column,
   FormulaColumn,
+  GridViewColumn,
   KanbanView,
   Model,
 } from '../models';
@@ -39,7 +40,11 @@ import Noco from '../Noco';
 import NcConnectionMgrv2 from '../utils/common/NcConnectionMgrv2';
 import { MetaTable } from '../utils/globals';
 import { MetaService } from '../meta/meta.service';
-import type { LinkToAnotherRecordColumn, Project } from '../models';
+import type {
+  LinkToAnotherRecordColumn,
+  Project,
+  RollupColumn,
+} from '../models';
 import type SqlMgrv2 from '../db/sql-mgr/v2/SqlMgrv2';
 import type {
   ColumnReqType,
@@ -1759,7 +1764,7 @@ export class ColumnsService {
         true,
       );
 
-      await Column.insert({
+      const col1 = await Column.insert({
         title: getUniqueColumnAliasName(
           await child.getColumns(),
           `${parent.title} List`,
@@ -1780,7 +1785,7 @@ export class ColumnsService {
         fk_related_model_id: parent.id,
         virtual: (param.column as LinkToAnotherColumnReqType).virtual,
       });
-      await Column.insert({
+      const col2 = await Column.insert({
         title: getUniqueColumnAliasName(
           await parent.getColumns(),
           param.column.title ?? `${child.title} List`,
@@ -1801,6 +1806,13 @@ export class ColumnsService {
         virtual: (param.column as LinkToAnotherColumnReqType).virtual,
       });
 
+      await populateRollupForLTAR({
+        column: col1,
+      })
+      await populateRollupForLTAR({
+        column: col2,
+      })
+
       // todo: create index for virtual relations as well
       // create index for foreign key in pg
       if (param.base.type === 'pg') {
@@ -1869,4 +1881,5 @@ export class ColumnsService {
       await Column.update(column.id, colBody);
     }
   }
+
 }