From a8706fc3301ac5ee72ca6799b163942a8652a7b5 Mon Sep 17 00:00:00 2001
From: Sean McGary <sean@seanmcgary.com>
Date: Fri, 19 Jan 2018 12:13:31 -0600
Subject: [PATCH] Sequelize - Add function interface for UUID types (#22929)

Adding the function interface now allows the user to specify
a default value for UUID types:

```
const TestModel = sequelize.define('test_model', {
	uuid: {
		type: Sequelize.UUID,
		defaultValue: Sequelize.UUIDV4()
	}
});
```
---
 types/sequelize/index.d.ts         | 10 +++++++---
 types/sequelize/sequelize-tests.ts |  3 +++
 2 files changed, 10 insertions(+), 3 deletions(-)

diff --git a/types/sequelize/index.d.ts b/types/sequelize/index.d.ts
index f94d95ec26..d88754480f 100644
--- a/types/sequelize/index.d.ts
+++ b/types/sequelize/index.d.ts
@@ -1830,11 +1830,15 @@ declare namespace sequelize {
 
     }
 
-    interface DataTypeUUID extends DataTypeAbstract { }
+    interface DataTypeAbstractUUID<T> extends DataTypeAbstract {
+        (): T;
+    }
 
-    interface DataTypeUUIDv1 extends DataTypeAbstract { }
+    interface DataTypeUUID extends DataTypeAbstractUUID<DataTypeUUID> { }
 
-    interface DataTypeUUIDv4 extends DataTypeAbstract { }
+    interface DataTypeUUIDv1 extends DataTypeAbstractUUID<DataTypeUUIDv1> { }
+
+    interface DataTypeUUIDv4 extends DataTypeAbstractUUID<DataTypeUUIDv4> { }
 
     interface DataTypeVirtual extends DataTypeAbstract {
 
diff --git a/types/sequelize/sequelize-tests.ts b/types/sequelize/sequelize-tests.ts
index 0f329171e7..b1ee85d2fc 100644
--- a/types/sequelize/sequelize-tests.ts
+++ b/types/sequelize/sequelize-tests.ts
@@ -488,8 +488,11 @@ Sequelize.BOOLEAN;
 Sequelize.DATE;
 Sequelize.DATE(6);
 Sequelize.UUID;
+Sequelize.UUID();
 Sequelize.UUIDV1;
+Sequelize.UUIDV1();
 Sequelize.UUIDV4;
+Sequelize.UUIDV4();
 Sequelize.NOW;
 Sequelize.TINYINT;
 Sequelize.TINYINT.UNSIGNED;