v0.5.0 (#30)

* Update version

* Update version

* Fixed that added column position to expected

* Update version

CHANGELOG.md

@@ -1,3 +1,47 @@
+## 0.5.0 (2017-11-14)
+
+Carpenter 0.5.0 has been released.  
+
+Note:  
+This version has to become impossible to modify column positions.  
+But adding column is adjusted to expecting position.  
+
+### Added
+
+- Nothing
+
+### Deprecated
+
+- Nothing
+
+### Removed
+
+- It's to become impossible to modify column positions when alter columns.
+
+### Fixed
+
+- Fixed that added column position to expected
+
+
+## 0.4.9 (2017-11-10)
+
+### Added
+
+- Modified MySQL connection settings (no idle connections)
+
+### Deprecated
+
+- Nothing
+
+### Removed
+
+- Nothing
+
+### Fixed
+
+- Fixed the SQL syntax error caused by column collation comparing
+
+
 ## 0.4.8 (2017-10-05)
 
 ### Added

builder/builder.go

@@ -138,17 +138,18 @@ func willModifyColumn(old, new *mysql.Table) []string {
 		oldTableSchema := oldCol.TableSchema
 		oldColumnKey := oldCol.ColumnKey
 		oldPrivileges := oldCol.Privileges
+		oldOrdinalPosition := oldCol.OrdinalPosition
 		oldCol.TableSchema = newCol.TableSchema
 		oldCol.ColumnKey = newCol.ColumnKey
 		oldCol.Privileges = newCol.Privileges
+		oldCol.OrdinalPosition = newCol.OrdinalPosition
 		if !reflect.DeepEqual(oldCol, newCol) {
-			sql := newCol.ToModifySQL()
-			sql = fmt.Sprintf("%s %s", sql, newCol.AppendPos(new.Columns))
-			sqls = append(sqls, sql)
+			sqls = append(sqls, newCol.ToModifySQL())
 		}
 		oldCol.TableSchema = oldTableSchema
 		oldCol.ColumnKey = oldColumnKey
 		oldCol.Privileges = oldPrivileges
+		oldCol.OrdinalPosition = oldOrdinalPosition
 	}
 	return sqls
 }

cmd/carpenter/version.go

@@ -1,4 +1,4 @@
 package main
 
 const Name string = "carpenter"
-const Version string = "0.4.8"
+const Version string = "0.5.0"

dialect/mysql/column.go

@@ -131,18 +131,21 @@ func (m Columns) ToSQL() []string {
 }
 
 func (m *Column) AppendPos(all Columns) string {
-	pos := "first"
-	if m.OrdinalPosition > 1 {
-		before := m.OrdinalPosition - 1
-		for _, v := range all {
-			if v.OrdinalPosition != before {
-				continue
-			}
-			pos = fmt.Sprintf("after %s", Quote(v.ColumnName))
-			break
+	name := "first"
+	if n := all.GetBeforeColumn(m); n != nil {
+		name = n.ColumnName
+	}
+	return fmt.Sprintf("after %s", Quote(name))
+}
+
+func (m Columns) GetBeforeColumn(col *Column) *Column {
+	search := col.OrdinalPosition - 1
+	for _, c := range m {
+		if c.OrdinalPosition == search {
+			return c
 		}
 	}
-	return pos
+	return nil
 }
 
 func (m Columns) ToAddSQL(all Columns) []string {
@@ -180,10 +183,12 @@ func (m Columns) GroupByColumnName() map[string]*Column {
 
 func (m Columns) GetSortedColumnNames() []string {
 	names := make([]string, 0, len(m))
+	sort.Slice(m, func(i, j int) bool {
+		return m[i].OrdinalPosition < m[j].OrdinalPosition
+	})
 	for _, column := range m {
 		names = append(names, column.ColumnName)
 	}
-	sort.Strings(names)
 	return names
 }