101 lines
2.3 KiB
Go
101 lines
2.3 KiB
Go
// Package common 公共组件
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package common
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import (
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"reflect"
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)
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// BaseService 泛型 Service 基类，封装通用业务逻辑
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type BaseService[T any] struct {
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mapper *BaseMapper[T]
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}
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// NewBaseService 创建 BaseService 实例
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func NewBaseService[T any]() *BaseService[T] {
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return &BaseService[T]{
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mapper: NewBaseMapper[T](),
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}
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}
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// GetMapper 获取 Mapper 实例
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func (s *BaseService[T]) GetMapper() *BaseMapper[T] {
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return s.mapper
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}
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// List 分页查询
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func (s *BaseService[T]) List(page, size int) ([]T, int64, error) {
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return s.mapper.FindAll(page, size)
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}
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// GetByID 根据 ID 获取
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func (s *BaseService[T]) GetByID(id string) (*T, error) {
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return s.mapper.FindByID(id)
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}
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// Create 创建记录（自动生成 ID）
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func (s *BaseService[T]) Create(item *T) error {
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// 通过反射设置 ID 字段
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if err := setID(item); err != nil {
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return err
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}
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return s.mapper.Create(item)
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}
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// Update 更新记录
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func (s *BaseService[T]) Update(item *T) error {
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return s.mapper.Update(item)
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}
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// UpdateFields 更新指定字段
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func (s *BaseService[T]) UpdateFields(id string, fields map[string]interface{}) error {
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return s.mapper.UpdateFields(id, fields)
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}
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// Delete 删除记录
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func (s *BaseService[T]) Delete(id string) error {
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return s.mapper.Delete(id)
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}
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// BatchCreate 批量创建（自动生成 ID）
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func (s *BaseService[T]) BatchCreate(items []T) error {
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for i := range items {
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if err := setID(&items[i]); err != nil {
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return err
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}
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}
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return s.mapper.BatchCreate(items, DefaultBatchSize)
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}
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// BatchUpdate 批量更新
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func (s *BaseService[T]) BatchUpdate(items []T) error {
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return s.mapper.BatchUpdate(items)
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}
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// BatchUpsert 批量插入或更新
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func (s *BaseService[T]) BatchUpsert(items []T, updateColumns []string) error {
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for i := range items {
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if err := setID(&items[i]); err != nil {
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return err
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}
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}
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return s.mapper.BatchUpsert(items, updateColumns)
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}
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// BatchDelete 批量删除
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func (s *BaseService[T]) BatchDelete(ids []string) error {
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return s.mapper.BatchDelete(ids)
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}
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// setID 通过反射设置 ID 字段
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func setID(item interface{}) error {
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val := reflect.ValueOf(item).Elem()
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if val.Kind() == reflect.Struct {
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idField := val.FieldByName("ID")
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if idField.IsValid() && idField.Kind() == reflect.String {
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if idField.String() == "" {
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idField.SetString(GenerateStringID())
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}
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}
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}
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return nil
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} |