[permissions] Override workspaceDatasource.createQueryBuilder (#12415)

In the frame of https://github.com/twentyhq/core-team-issues/issues/924

- Rename dataSource -> workspaceDataSource when relevant to ease
understandability
- override workspaceDataSource.createQueryBuilder, because we don't want
developers to use it directly since it does not run permission checks at
this level. Indeed, we cannot do so because 1) datasources are shared
between roles so we would need to re-think its implementation to make
that possible, while for now we never call
workspaceDatasource.createQueryBuilder in our codebase 2)
workspaceEntityManager.createQueryBuilder, that we have overriden with
permission checks, then performs a call to
workspaceDataSource.createQueryBuilder so that would make two permission
checks.

packages/twenty-server/src/engine/twenty-orm/entity-manager/workspace-entity-manager.ts

@@ -145,14 +145,20 @@ export class WorkspaceEntityManager extends EntityManager {
     let queryBuilder: SelectQueryBuilder<Entity>;
 
     if (alias) {
-      queryBuilder = super.createQueryBuilder(
+      queryBuilder = this.connection.createQueryBuilder(
         entityClassOrQueryRunner as EntityTarget<Entity>,
         alias as string,
         queryRunner as QueryRunner | undefined,
+        {
+          calledByWorkspaceEntityManager: true,
+        },
       );
     } else {
-      queryBuilder = super.createQueryBuilder(
+      queryBuilder = this.connection.createQueryBuilder(
         entityClassOrQueryRunner as QueryRunner,
+        {
+          calledByWorkspaceEntityManager: true,
+        },
       );
     }
 
@@ -912,7 +918,10 @@ export class WorkspaceEntityManager extends EntityManager {
       permissionOptions,
     )
       .setFindOptions(options || {})
-      .getExists();
+      .select('1')
+      .limit(1)
+      .getRawOne()
+      .then((result) => isDefined(result));
   }
 
   override existsBy<Entity extends ObjectLiteral>(
@@ -929,7 +938,10 @@ export class WorkspaceEntityManager extends EntityManager {
       permissionOptions,
     )
       .setFindOptions({ where })
-      .getExists();
+      .select('1')
+      .limit(1)
+      .getRawOne()
+      .then((result) => isDefined(result));
   }
 
   override count<Entity extends ObjectLiteral>(