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drivers.go
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drivers.go
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/*
* Copyright © 2019 Musing Studio LLC.
*
* This file is part of WriteFreely.
*
* WriteFreely is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License, included
* in the LICENSE file in this source code package.
*/
package migrations
import (
"fmt"
)
// TODO: use now() from writefreely pkg
func (db *datastore) now() string {
if db.driverName == driverSQLite {
return "strftime('%Y-%m-%d %H:%M:%S','now')"
}
return "NOW()"
}
func (db *datastore) typeInt() string {
if db.driverName == driverSQLite {
return "INTEGER"
}
return "INT"
}
func (db *datastore) typeSmallInt() string {
if db.driverName == driverSQLite {
return "INTEGER"
}
return "SMALLINT"
}
func (db *datastore) typeTinyInt() string {
if db.driverName == driverSQLite {
return "INTEGER"
}
return "TINYINT"
}
func (db *datastore) typeText() string {
return "TEXT"
}
func (db *datastore) typeChar(l int) string {
if db.driverName == driverSQLite {
return "TEXT"
}
return fmt.Sprintf("CHAR(%d)", l)
}
func (db *datastore) typeVarChar(l int) string {
if db.driverName == driverSQLite {
return "TEXT"
}
return fmt.Sprintf("VARCHAR(%d)", l)
}
func (db *datastore) typeVarBinary(l int) string {
if db.driverName == driverSQLite {
return "BLOB"
}
return fmt.Sprintf("VARBINARY(%d)", l)
}
func (db *datastore) typeBool() string {
if db.driverName == driverSQLite {
return "INTEGER"
}
return "TINYINT(1)"
}
func (db *datastore) typeDateTime() string {
return "DATETIME"
}
func (db *datastore) typeIntPrimaryKey() string {
if db.driverName == driverSQLite {
// From docs: "In SQLite, a column with type INTEGER PRIMARY KEY is an alias for the ROWID (except in WITHOUT
// ROWID tables) which is always a 64-bit signed integer."
return "INTEGER PRIMARY KEY"
}
return "INT AUTO_INCREMENT PRIMARY KEY"
}
func (db *datastore) collateMultiByte() string {
if db.driverName == driverSQLite {
return ""
}
return " COLLATE utf8_bin"
}
func (db *datastore) engine() string {
if db.driverName == driverSQLite {
return ""
}
return " ENGINE = InnoDB"
}
func (db *datastore) after(colName string) string {
if db.driverName == driverSQLite {
return ""
}
return " AFTER " + colName
}

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