feat: when connecting external db populate rollup for LTAR and hide LTAR by default

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

packages/nocodb/src/helpers/populateMeta.ts

@@ -1,5 +1,6 @@
 import { ModelTypes, UITypes, ViewTypes } from 'nocodb-sdk';
 import { isVirtualCol, RelationTypes } from 'nocodb-sdk';
+import { GridViewColumn } from '../models';
 import Column from '../models/Column';
 import Model from '../models/Model';
 import NcConnectionMgrv2 from '../utils/common/NcConnectionMgrv2';
@@ -9,6 +10,7 @@ import getTableNameAlias, { getColumnNameAlias } from '../helpers/getTableName';
 import getColumnUiType from '../helpers/getColumnUiType';
 import mapDefaultDisplayValue from '../helpers/mapDefaultDisplayValue';
 import { getUniqueColumnAliasName } from './getUniqueName';
+import type { RollupColumn } from '../models';
 import type LinkToAnotherRecordColumn from '../models/LinkToAnotherRecordColumn';
 import type Base from '../models/Base';
 import type Project from '../models/Project';
@@ -435,3 +437,49 @@ export async function populateMeta(base: Base, project: Project): Promise<any> {
 
   return info;
 }
+
+export async function populateRollupColumnAndHideLTAR(
+  base: Base,
+  project: Project,
+) {
+  for (const model of await Model.list({
+    project_id: project.id,
+    base_id: base.id,
+  })) {
+    const columns = await model.getColumns();
+    const hmAndMmLTARColumns = columns.filter(
+      (c) =>
+        c.uidt === UITypes.LinkToAnotherRecord &&
+        c.colOptions.type !== RelationTypes.BELONGS_TO &&
+        !c.system,
+    );
+
+    const views = await model.getViews();
+
+    for (const column of hmAndMmLTARColumns) {
+      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/bases.service.ts

@@ -1,6 +1,7 @@
 import { Injectable } from '@nestjs/common';
 import { T } from 'nc-help';
 import { populateMeta, validatePayload } from '../helpers';
+import { populateRollupColumnAndHideLTAR } from '../helpers/populateMeta'
 import { syncBaseMigration } from '../helpers/syncMigration';
 import { Base, Project } from '../models';
 import type { BaseReqType } from 'nocodb-sdk';
@@ -69,6 +70,8 @@ export class BasesService {
 
     const info = await populateMeta(base, project);
 
+    await populateRollupColumnAndHideLTAR(base, project);
+
     T.emit('evt_api_created', info);
 
     delete base.config;

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

@@ -7,6 +7,7 @@ import { OrgUserRoles } from 'nocodb-sdk';
 import { populateMeta, validatePayload } from '../helpers';
 import { NcError } from '../helpers/catchError';
 import { extractPropsAndSanitize } from '../helpers/extractProps';
+import { populateRollupColumnAndHideLTAR } from '../helpers/populateMeta'
 import syncMigration from '../helpers/syncMigration';
 import { Project, ProjectUser } from '../models';
 import Noco from '../Noco';
@@ -167,6 +168,8 @@ export class ProjectsService {
     for (const base of await project.getBases()) {
       const info = await populateMeta(base, project);
 
+      await populateRollupColumnAndHideLTAR(base, project);
+
       T.emit('evt_api_created', info);
       delete base.config;
     }