fix issue #1934 (#2193)

contrib/drivers/mysql/mysql_model_test.go

@@ -4688,3 +4688,14 @@ func Test_Builder_OmitEmptyWhere(t *testing.T) {
 		t.Assert(count, TableSize)
 	})
 }
+
+func Test_Issue1934(t *testing.T) {
+	table := createInitTable()
+	defer dropTable(table)
+
+	gtest.C(t, func(t *gtest.T) {
+		one, err := db.Model(table).Where(" id ", 1).One()
+		t.AssertNil(err)
+		t.Assert(one["id"], 1)
+	})
+}

database/gdb/gdb_func.go

@@ -528,7 +528,7 @@ func formatWhereHolder(ctx context.Context, db DB, in formatWhereHolderInput) (n
 			return
 		}
 		// Usually a string.
-		whereStr := gconv.String(in.Where)
+		whereStr := gstr.Trim(gconv.String(in.Where))
 		// Is `whereStr` a field name which composed as a key-value condition?
 		// Eg:
 		// Where("id", 1)