From 0b3faf39a9680788d992ba7ee630d15acbe9a67a Mon Sep 17 00:00:00 2001
From: Orbit Turner <orbitturner@gmail.com>
Date: Thu, 9 Sep 2021 13:27:30 +0000
Subject: [PATCH] fix(NestJSX-CRUD-TypeOrm): :bug: Ability to Use Search and
 Filter Features with Nested Entities.

Fixing the Error [Invalid Column Name] or [ syntax error at or near \":\".]  when using filter or search in relational/nested entities.
---
 packages/crud-typeorm/src/typeorm-crud.service.ts | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/packages/crud-typeorm/src/typeorm-crud.service.ts b/packages/crud-typeorm/src/typeorm-crud.service.ts
index 32a9d9f1..3596979a 100644
--- a/packages/crud-typeorm/src/typeorm-crud.service.ts
+++ b/packages/crud-typeorm/src/typeorm-crud.service.ts
@@ -774,7 +774,14 @@ export class TypeOrmCrudService<T> extends CrudService<T> {
     operator: ComparisonOperator = '$eq',
   ) {
     const time = process.hrtime();
-    const index = `${field}${time[0]}${time[1]}`;
+    // const index = `${field}${time[0]}${time[1]}`;
+    /**
+     * Correcting the Error [Invalid Column Name] or [ syntax error at or near \":\".]
+     * When using filter or search in relational/nested entities.
+     */
+    const safeFieldName = field.replace(/./g, '_');
+    const index = `${safeFieldName}${time[0]}${time[1]}`;
+
     const args = [
       { field, operator: isNull(value) ? '$isnull' : operator, value },
       index,