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Fix auto migration always alert table, close #4198

This commit is contained in:
Jinzhu 2021-11-29 20:24:04 +08:00
parent d8a710cba2
commit 3a3b82263a
2 changed files with 3 additions and 3 deletions
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4
migrator/migrator.go
View File

@ -390,7 +390,7 @@ func (m Migrator) MigrateColumn(value interface{}, field *schema.Field, columnTy
alterColumn := false
// check size
if length, _ := columnType.Length(); length != int64(field.Size) {
if length, ok := columnType.Length(); length != int64(field.Size) {
if length > 0 && field.Size > 0 {
alterColumn = true
} else {
@ -399,7 +399,7 @@ func (m Migrator) MigrateColumn(value interface{}, field *schema.Field, columnTy
matches := regRealDataType.FindAllStringSubmatch(realDataType, -1)
matches2 := regFullDataType.FindAllStringSubmatch(fullDataType, -1)
if (len(matches) == 1 && matches[0][1] != fmt.Sprint(field.Size) || !field.PrimaryKey) &&
(len(matches2) == 1 && matches2[0][1] != fmt.Sprint(length)) {
(len(matches2) == 1 && matches2[0][1] != fmt.Sprint(length) && ok) {
alterColumn = true
}
}

2
tests/migrate_test.go
View File

@ -90,7 +90,7 @@ func TestAutoMigrateSelfReferential(t *testing.T) {
}
func TestSmartMigrateColumn(t *testing.T) {
fullSupported := map[string]bool{"mysql": true, "postgres": true}[DB.Dialector.Name()]
fullSupported := map[string]bool{"mysql": true}[DB.Dialector.Name()]
type UserMigrateColumn struct {
ID uint