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package model
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import (
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"fmt"
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"time"
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"github.com/rocboss/paopao-ce/global"
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"github.com/rocboss/paopao-ce/pkg/setting"
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"gorm.io/driver/mysql"
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"gorm.io/gorm"
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"gorm.io/gorm/logger"
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"gorm.io/gorm/schema"
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"gorm.io/plugin/dbresolver"
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"gorm.io/plugin/soft_delete"
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)
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// 公共Model
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type Model struct {
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ID int64 `gorm:"primary_key" json:"id"`
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CreatedOn int64 `json:"created_on"`
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ModifiedOn int64 `json:"modified_on"`
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DeletedOn int64 `json:"deleted_on"`
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IsDel soft_delete.DeletedAt `gorm:"softDelete:flag" json:"is_del"`
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}
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type ConditionsT map[string]interface{}
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func NewDBEngine(databaseSetting *setting.MySQLSettingS) (*gorm.DB, error) {
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newLogger := logger.New(
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global.Logger, // io writer（日志输出的目标，前缀和日志包含的内容）
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logger.Config{
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SlowThreshold: time.Second, // 慢 SQL 阈值
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LogLevel: databaseSetting.LogLevel, // 日志级别
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IgnoreRecordNotFoundError: true, // 忽略ErrRecordNotFound（记录未找到）错误
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Colorful: false, // 禁用彩色打印
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},
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)
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s := "%s:%s@tcp(%s)/%s?charset=%s&parseTime=%t&loc=Local"
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db, err := gorm.Open(mysql.Open(fmt.Sprintf(s,
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databaseSetting.UserName,
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databaseSetting.Password,
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databaseSetting.Host,
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databaseSetting.DBName,
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databaseSetting.Charset,
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databaseSetting.ParseTime,
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)), &gorm.Config{
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Logger: newLogger,
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NamingStrategy: schema.NamingStrategy{
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TablePrefix: databaseSetting.TablePrefix,
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SingularTable: true,
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},
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})
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if err != nil {
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return nil, err
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}
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db.Use(dbresolver.Register(dbresolver.Config{}).
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SetConnMaxIdleTime(time.Hour).
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SetConnMaxLifetime(24 * time.Hour).
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SetMaxIdleConns(databaseSetting.MaxIdleConns).
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SetMaxOpenConns(databaseSetting.MaxOpenConns))
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return db, nil
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}
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func (m *Model) BeforeCreate(tx *gorm.DB) (err error) {
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nowTime := time.Now().Unix()
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tx.Statement.SetColumn("created_on", nowTime)
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tx.Statement.SetColumn("modified_on", nowTime)
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return
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}
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func (m *Model) BeforeUpdate(tx *gorm.DB) (err error) {
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if !tx.Statement.Changed("modified_on") {
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tx.Statement.SetColumn("modified_on", time.Now().Unix())
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}
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return
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}
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