1 files changed, 190 insertions, 0 deletions
diff --git a/vendor/github.com/go-xorm/builder/builder.go b/vendor/github.com/go-xorm/builder/builder.go
new file mode 100644
index 00000000..1253b988
--- /dev/null
+++ b/vendor/github.com/go-xorm/builder/builder.go
@@ -0,0 +1,190 @@
+// Copyright 2016 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 optype byte
+
+const (
+	condType   optype = iota // only conditions
+	selectType               // select
+	insertType               // insert
+	updateType               // update
+	deleteType               // delete
+)
+
+type join struct {
+	joinType  string
+	joinTable string
+	joinCond  Cond
+}
+
+// Builder describes a SQL statement
+type Builder struct {
+	optype
+	tableName string
+	cond      Cond
+	selects   []string
+	joins     []join
+	inserts   Eq
+	updates   []Eq
+}
+
+// Select creates a select Builder
+func Select(cols ...string) *Builder {
+	builder := &Builder{cond: NewCond()}
+	return builder.Select(cols...)
+}
+
+// Insert creates an insert Builder
+func Insert(eq Eq) *Builder {
+	builder := &Builder{cond: NewCond()}
+	return builder.Insert(eq)
+}
+
+// Update creates an update Builder
+func Update(updates ...Eq) *Builder {
+	builder := &Builder{cond: NewCond()}
+	return builder.Update(updates...)
+}
+
+// Delete creates a delete Builder
+func Delete(conds ...Cond) *Builder {
+	builder := &Builder{cond: NewCond()}
+	return builder.Delete(conds...)
+}
+
+// Where sets where SQL
+func (b *Builder) Where(cond Cond) *Builder {
+	b.cond = b.cond.And(cond)
+	return b
+}
+
+// From sets the table name
+func (b *Builder) From(tableName string) *Builder {
+	b.tableName = tableName
+	return b
+}
+
+// Into sets insert table name
+func (b *Builder) Into(tableName string) *Builder {
+	b.tableName = tableName
+	return b
+}
+
+// Join sets join table and contions
+func (b *Builder) Join(joinType, joinTable string, joinCond interface{}) *Builder {
+	switch joinCond.(type) {
+	case Cond:
+		b.joins = append(b.joins, join{joinType, joinTable, joinCond.(Cond)})
+	case string:
+		b.joins = append(b.joins, join{joinType, joinTable, Expr(joinCond.(string))})
+	}
+
+	return b
+}
+
+// InnerJoin sets inner join
+func (b *Builder) InnerJoin(joinTable string, joinCond interface{}) *Builder {
+	return b.Join("INNER", joinTable, joinCond)
+}
+
+// LeftJoin sets left join SQL
+func (b *Builder) LeftJoin(joinTable string, joinCond interface{}) *Builder {
+	return b.Join("LEFT", joinTable, joinCond)
+}
+
+// RightJoin sets right join SQL
+func (b *Builder) RightJoin(joinTable string, joinCond interface{}) *Builder {
+	return b.Join("RIGHT", joinTable, joinCond)
+}
+
+// CrossJoin sets cross join SQL
+func (b *Builder) CrossJoin(joinTable string, joinCond interface{}) *Builder {
+	return b.Join("CROSS", joinTable, joinCond)
+}
+
+// FullJoin sets full join SQL
+func (b *Builder) FullJoin(joinTable string, joinCond interface{}) *Builder {
+	return b.Join("FULL", joinTable, joinCond)
+}
+
+// Select sets select SQL
+func (b *Builder) Select(cols ...string) *Builder {
+	b.selects = cols
+	b.optype = selectType
+	return b
+}
+
+// And sets AND condition
+func (b *Builder) And(cond Cond) *Builder {
+	b.cond = And(b.cond, cond)
+	return b
+}
+
+// Or sets OR condition
+func (b *Builder) Or(cond Cond) *Builder {
+	b.cond = Or(b.cond, cond)
+	return b
+}
+
+// Insert sets insert SQL
+func (b *Builder) Insert(eq Eq) *Builder {
+	b.inserts = eq
+	b.optype = insertType
+	return b
+}
+
+// Update sets update SQL
+func (b *Builder) Update(updates ...Eq) *Builder {
+	b.updates = updates
+	b.optype = updateType
+	return b
+}
+
+// Delete sets delete SQL
+func (b *Builder) Delete(conds ...Cond) *Builder {
+	b.cond = b.cond.And(conds...)
+	b.optype = deleteType
+	return b
+}
+
+// WriteTo implements Writer interface
+func (b *Builder) WriteTo(w Writer) error {
+	switch b.optype {
+	case condType:
+		return b.cond.WriteTo(w)
+	case selectType:
+		return b.selectWriteTo(w)
+	case insertType:
+		return b.insertWriteTo(w)
+	case updateType:
+		return b.updateWriteTo(w)
+	case deleteType:
+		return b.deleteWriteTo(w)
+	}
+
+	return ErrNotSupportType
+}
+
+// ToSQL convert a builder to SQL and args
+func (b *Builder) ToSQL() (string, []interface{}, error) {
+	w := NewWriter()
+	if err := b.WriteTo(w); err != nil {
+		return "", nil, err
+	}
+
+	return w.writer.String(), w.args, nil
+}
+
+// ToSQL convert a builder or condtions to SQL and args
+func ToSQL(cond interface{}) (string, []interface{}, error) {
+	switch cond.(type) {
+	case Cond:
+		return condToSQL(cond.(Cond))
+	case *Builder:
+		return cond.(*Builder).ToSQL()
+	}
+	return "", nil, ErrNotSupportType
+}