mirror of
https://github.com/beego/bee.git
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92 lines
2.6 KiB
Go
92 lines
2.6 KiB
Go
// Copyright 2013 bee authors
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//
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// Licensed under the Apache License, Version 2.0 (the "License"): you may
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// not use this file except in compliance with the License. You may obtain
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// a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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// WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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// License for the specific language governing permissions and limitations
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// under the License.
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package main
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import (
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"fmt"
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"os"
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"path"
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"strings"
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"time"
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)
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const (
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M_PATH = "migrations"
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M_DATE_FORMAT = "20060102_150405"
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)
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// generateMigration generates migration file template for database schema update.
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// The generated file template consists of an up() method for updating schema and
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// a down() method for reverting the update.
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func generateMigration(mname, upsql, downsql, curpath string) {
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migrationFilePath := path.Join(curpath, "database", M_PATH)
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if _, err := os.Stat(migrationFilePath); os.IsNotExist(err) {
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// create migrations directory
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if err := os.MkdirAll(migrationFilePath, 0777); err != nil {
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ColorLog("[ERRO] Could not create migration directory: %s\n", err)
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os.Exit(2)
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}
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}
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// create file
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today := time.Now().Format(M_DATE_FORMAT)
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fpath := path.Join(migrationFilePath, fmt.Sprintf("%s_%s.go", today, mname))
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if f, err := os.OpenFile(fpath, os.O_CREATE|os.O_EXCL|os.O_RDWR, 0666); err == nil {
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defer f.Close()
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content := strings.Replace(MIGRATION_TPL, "{{StructName}}", camelCase(mname)+"_"+today, -1)
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content = strings.Replace(content, "{{CurrTime}}", today, -1)
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content = strings.Replace(content, "{{UpSQL}}", upsql, -1)
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content = strings.Replace(content, "{{DownSQL}}", downsql, -1)
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f.WriteString(content)
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// gofmt generated source code
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formatSourceCode(fpath)
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ColorLog("[INFO] Migration file generated: %s\n", fpath)
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} else {
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// error creating file
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ColorLog("[ERRO] Could not create migration file: %s\n", err)
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os.Exit(2)
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}
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}
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const MIGRATION_TPL = `package main
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import (
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"github.com/astaxie/beego/migration"
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)
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// DO NOT MODIFY
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type {{StructName}} struct {
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migration.Migration
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}
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// DO NOT MODIFY
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func init() {
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m := &{{StructName}}{}
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m.Created = "{{CurrTime}}"
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migration.Register("{{StructName}}", m)
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}
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// Run the migrations
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func (m *{{StructName}}) Up() {
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// use m.SQL("CREATE TABLE ...") to make schema update
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{{UpSQL}}
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}
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// Reverse the migrations
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func (m *{{StructName}}) Down() {
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// use m.SQL("DROP TABLE ...") to reverse schema update
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{{DownSQL}}
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}
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`
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