Merge pull request #4 from oinume/feature/softdelete

Add softdelete feature

column.go

@@ -27,6 +27,7 @@ type Column struct {
 	MapType         int
 	IsCreated       bool
 	IsUpdated       bool
+	IsDeleted       bool
 	IsCascade       bool
 	IsVersion       bool
 	fieldPath       []string
@@ -50,6 +51,7 @@ func NewColumn(name, fieldName string, sqlType SQLType, len1, len2 int, nullable
 		MapType:         TWOSIDES,
 		IsCreated:       false,
 		IsUpdated:       false,
+		IsDeleted:       false,
 		IsCascade:       false,
 		IsVersion:       false,
 		fieldPath:       nil,

table.go

@@ -17,6 +17,7 @@ type Table struct {
 	AutoIncrement string
 	Created       map[string]bool
 	Updated       string
+	Deleted       string
 	Version       string
 	Cacher        Cacher
 	StoreEngine   string
@@ -83,6 +84,10 @@ func (table *Table) UpdatedColumn() *Column {
 	return table.GetColumn(table.Updated)
 }
 
+func (table *Table) DeletedColumn() *Column {
+	return table.GetColumn(table.Deleted)
+}
+
 // add a column to table
 func (table *Table) AddColumn(col *Column) {
 	table.columnsSeq = append(table.columnsSeq, col.Name)
@@ -106,6 +111,9 @@ func (table *Table) AddColumn(col *Column) {
 	if col.IsUpdated {
 		table.Updated = col.Name
 	}
+	if col.IsDeleted {
+		table.Deleted = col.Name
+	}
 	if col.IsVersion {
 		table.Version = col.Name
 	}