feat: formula user field support

packages/nocodb/src/db/formulav2/formulaQueryBuilderv2.ts

@@ -16,6 +16,7 @@ import NocoCache from '~/cache/NocoCache';
 import { CacheGetType, CacheScope } from '~/utils/globals';
 import { convertDateFormatForConcat } from '~/helpers/formulaFnHelper';
 import FormulaColumn from '~/models/FormulaColumn';
+import { Base, BaseUser } from '~/models';
 
 // todo: switch function based on database
 
@@ -637,6 +638,32 @@ async function _formulaQueryBuilder(
             Promise.resolve({ builder: col.column_name });
         }
         break;
+      case UITypes.User:
+        {
+          const base = await Base.get(model.base_id);
+          const baseUsers = await BaseUser.getUsersList({
+            base_id: base.id,
+            ...((base as any)?.fk_workspace_id
+              ? { workspace_id: (base as any).fk_workspace_id }
+              : {}),
+          });
+
+          // create nested replace statement for each user
+          const finalStatement = baseUsers.reduce((acc, user) => {
+            const qb = knex.raw(`REPLACE(${acc}, ?, ?)`, [
+              user.id,
+              user.display_name || user.email,
+            ]);
+            return qb.toQuery();
+          }, knex.raw(`??`, [col.column_name]).toQuery());
+
+          aliasToColumn[col.id] = async (): Promise<any> => {
+            return {
+              builder: knex.raw(finalStatement).wrap('(', ')'),
+            };
+          };
+        }
+        break;
       default:
         aliasToColumn[col.id] = () =>
           Promise.resolve({ builder: col.column_name });