From 09fe45b09cc9dff7a0d62feeb055e3e66eb6d07b Mon Sep 17 00:00:00 2001
From: Jay <jay@sarvika.com>
Date: Tue, 20 Feb 2024 23:56:11 +0530
Subject: [PATCH] mysql: added a helper to compare UUID strings with
 uuid_to_bin

---
 mysql/literal.go      | 15 ++++++++++++++-
 mysql/literal_test.go | 10 ++++++++++
 2 files changed, 24 insertions(+), 1 deletion(-)

diff --git a/mysql/literal.go b/mysql/literal.go
index 1c69c31..3c7c07a 100644
--- a/mysql/literal.go
+++ b/mysql/literal.go
@@ -1,8 +1,10 @@
 package mysql
 
 import (
-	"github.com/go-jet/jet/v2/internal/jet"
+	"fmt"
 	"time"
+
+	"github.com/go-jet/jet/v2/internal/jet"
 )
 
 // Keywords
@@ -55,6 +57,17 @@ var String = jet.String
 // value can be any uuid type with a String method
 var UUID = jet.UUID
 
+// UUIDToBin takes ay object with a String method and calls StringUUIDToBin.
+func UUIDToBin(str fmt.Stringer) StringExpression {
+	return StringUUIDToBin(str.String())
+}
+
+// StringUUIDToBin is a helper function that calls "uuid_to_bin" function on the passed value.
+func StringUUIDToBin(str string) StringExpression {
+	fn := Func("uuid_to_bin", String(str))
+	return StringExp(fn)
+}
+
 // Date creates new date literal
 func Date(year int, month time.Month, day int) DateExpression {
 	return CAST(jet.Date(year, month, day)).AS_DATE()
diff --git a/mysql/literal_test.go b/mysql/literal_test.go
index fb96641..d5831b6 100644
--- a/mysql/literal_test.go
+++ b/mysql/literal_test.go
@@ -4,6 +4,8 @@ import (
 	"math"
 	"testing"
 	"time"
+
+	"github.com/google/uuid"
 )
 
 func TestBool(t *testing.T) {
@@ -81,3 +83,11 @@ func TestTimestamp(t *testing.T) {
 	assertSerialize(t, Timestamp(2010, time.March, 30, 10, 15, 30), `TIMESTAMP(?)`, "2010-03-30 10:15:30")
 	assertSerialize(t, TimestampT(time.Now()), `TIMESTAMP(?)`)
 }
+
+func TestUUIDToBin(t *testing.T) {
+	assertSerialize(t, UUIDToBin(uuid.Nil), `uuid_to_bin(?)`, uuid.Nil.String())
+}
+
+func TestStringUUIDToBin(t *testing.T) {
+	assertSerialize(t, StringUUIDToBin(uuid.Nil.String()), `uuid_to_bin(?)`, uuid.Nil.String())
+}