1 files changed, 49 insertions, 0 deletions
diff --git a/vendor/xorm.io/builder/cond_if.go b/vendor/xorm.io/builder/cond_if.go
new file mode 100644
index 0000000000..af9eb321fd
--- /dev/null
+++ b/vendor/xorm.io/builder/cond_if.go
@@ -0,0 +1,49 @@
+// Copyright 2019 The Xorm Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package builder
+
+type condIf struct {
+	condition bool
+	condTrue  Cond
+	condFalse Cond
+}
+
+var _ Cond = condIf{}
+
+// If returns Cond via condition
+func If(condition bool, condTrue Cond, condFalse ...Cond) Cond {
+	var c = condIf{
+		condition: condition,
+		condTrue:  condTrue,
+	}
+	if len(condFalse) > 0 {
+		c.condFalse = condFalse[0]
+	}
+	return c
+}
+
+func (condIf condIf) WriteTo(w Writer) error {
+	if condIf.condition {
+		return condIf.condTrue.WriteTo(w)
+	} else if condIf.condFalse != nil {
+		return condIf.condFalse.WriteTo(w)
+	}
+	return nil
+}
+
+func (condIf condIf) And(conds ...Cond) Cond {
+	return And(condIf, And(conds...))
+}
+
+func (condIf condIf) Or(conds ...Cond) Cond {
+	return Or(condIf, Or(conds...))
+}
+
+func (condIf condIf) IsValid() bool {
+	if condIf.condition {
+		return condIf.condTrue != nil
+	}
+	return condIf.condFalse != nil
+}