fix: handle database type array (#115)

* fix: handle database type array * chore: code comment
go-gorm · Jul 4, 2022 · 237572f · 237572f
1 parent c2cfceb
commit 237572f
Showing 1 changed file with 6 additions and 0 deletions.
diff --git a/migrator.go b/migrator.go
@@ -478,6 +478,12 @@ func (m Migrator) ColumnTypes(value interface{}) (columnTypes []gorm.ColumnType,
 					mc := c.(*migrator.ColumnType)
 					if mc.NameValue.String == name {
 						mc.ColumnTypeValue = sql.NullString{String: dataType, Valid: true}
+						// Handle array type: _text -> text[] , _int4 -> integer[]
+						// Not support array size limits and array size limits because:
+						// https://www.postgresql.org/docs/current/arrays.html#ARRAYS-DECLARATION
+						if strings.HasPrefix(mc.DataTypeValue.String, "_") {
+							mc.DataTypeValue = sql.NullString{String: dataType, Valid: true}
+						}
 						break
 					}
 				}