From d6f6c81a22189b253946f7d9cfb8ae5b58375f2b Mon Sep 17 00:00:00 2001
From: Ariel Mashraki <7413593+a8m@users.noreply.github.com>
Date: Fri, 19 Feb 2021 17:29:16 +0200
Subject: [PATCH] dialect/sql: allow creating predicate from raw expression
 (#1263)

---
 dialect/sql/builder.go      | 10 ++++++++++
 dialect/sql/builder_test.go |  4 +---
 2 files changed, 11 insertions(+), 3 deletions(-)

diff --git a/dialect/sql/builder.go b/dialect/sql/builder.go
index 173fb076d..f9d6b7067 100644
--- a/dialect/sql/builder.go
+++ b/dialect/sql/builder.go
@@ -891,6 +891,16 @@ func P(fns ...func(*Builder)) *Predicate {
 	return &Predicate{fns: fns}
 }
 
+// ExprP creates a new predicate from the given expression.
+//
+//	ExprP("A = ? AND B > ?", args...)
+//
+func ExprP(exr string, args ...interface{}) *Predicate {
+	return P(func(b *Builder) {
+		b.Join(Expr(exr, args...))
+	})
+}
+
 // Or combines all given predicates with OR between them.
 //
 //	Or(EQ("name", "foo"), EQ("name", "bar"))
diff --git a/dialect/sql/builder_test.go b/dialect/sql/builder_test.go
index a4e8853e7..08cbf643f 100644
--- a/dialect/sql/builder_test.go
+++ b/dialect/sql/builder_test.go
@@ -1376,9 +1376,7 @@ WHERE
 			input: Dialect(dialect.Postgres).
 				Select("*").
 				From(Table("users")).
-				Where(P(func(b *Builder) {
-					b.Join(Expr("name = $1", "pedro"))
-				})).
+				Where(ExprP("name = $1", "pedro")).
 				Where(P(func(b *Builder) {
 					b.Join(Expr("name = $2", "pedro"))
 				})).