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[migrator] Use full data type when add column

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This commit is contained in:
Jinzhu 2020-03-30 09:31:02 +08:00
parent 3a126233bf
commit be537f29ec
1 changed files with 23 additions and 19 deletions
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42
migrator/migrator.go
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@ -45,6 +45,27 @@ func (m Migrator) DataTypeOf(field *schema.Field) string {
return m.Dialector.DataTypeOf(field)
}
func (m Migrator) FullDataTypeOf(field *schema.Field) string {
dataType := m.DataTypeOf(field)
if field.AutoIncrement {
dataType += " AUTO_INCREMENT"
}
if field.NotNull {
dataType += " NOT NULL"
}
if field.Unique {
dataType += " UNIQUE"
}
if field.HasDefaultValue {
dataType += " DEFAULT " + field.DefaultValue
}
return dataType
}
// AutoMigrate
func (m Migrator) AutoMigrate(values ...interface{}) error {
// TODO smart migrate data type
@ -113,24 +134,7 @@ func (m Migrator) CreateTable(values ...interface{}) error {
field := stmt.Schema.FieldsByDBName[dbName]
createTableSQL += fmt.Sprintf("? ?")
hasPrimaryKeyInDataType = hasPrimaryKeyInDataType || strings.Contains(strings.ToUpper(field.DBDataType), "PRIMARY KEY")
values = append(values, clause.Column{Name: dbName}, clause.Expr{SQL: m.DataTypeOf(field)})
if field.AutoIncrement {
createTableSQL += " AUTO_INCREMENT"
}
if field.NotNull {
createTableSQL += " NOT NULL"
}
if field.Unique {
createTableSQL += " UNIQUE"
}
if field.DefaultValue != "" {
createTableSQL += " DEFAULT ?"
values = append(values, clause.Expr{SQL: field.DefaultValue})
}
values = append(values, clause.Column{Name: dbName}, clause.Expr{SQL: m.FullDataTypeOf(field)})
createTableSQL += ","
}
@ -220,7 +224,7 @@ func (m Migrator) AddColumn(value interface{}, field string) error {
if field := stmt.Schema.LookUpField(field); field != nil {
return m.DB.Exec(
"ALTER TABLE ? ADD ? ?",
clause.Table{Name: stmt.Table}, clause.Column{Name: field.DBName}, clause.Expr{SQL: m.DataTypeOf(field)},
clause.Table{Name: stmt.Table}, clause.Column{Name: field.DBName}, clause.Expr{SQL: m.FullDataTypeOf(field)},
).Error
}
return fmt.Errorf("failed to look up field with name: %s", field)