zhangdeman/database
1
0
Fork 0
Code Issues Pull Requests Projects Releases Wiki Activity

upgrade: 升级BaseDao, 基于泛型实现

Browse Source
This commit is contained in:
白茶清欢
2025-10-18 18:41:44 +08:00
parent c5ca01eb47
commit 74026cf1ac
1 changed files with 73 additions and 21 deletions
Download Patch File Download Diff File Expand all files Collapse all files

94
base.go
View File

@ -14,45 +14,57 @@ import (
"gorm.io/gorm/clause"
)
func NewBaseDao[DatabaseDataType any, DatabaseTableColumns any]() *BaseDao[DatabaseDataType, DatabaseTableColumns] {
res := &BaseDao[DatabaseDataType, DatabaseTableColumns]{}
res.tableName = res.TableName()
res.columns = res.Columns()
res.isSetColumns = true
res.columnComment = res.ColumnComment()
return res
}
// BaseDao 基础dao层
type BaseDao[DatabaseDataType any] struct {
TableName string // 继承BaseDao，需要指定表名，后续调用不用传递表名进来，如果分表了，使用SetOption设置表名, 这里的优先级更高
type BaseDao[DatabaseDataType any, DatabaseTableColumns any] struct {
tableName string // 继承BaseDao，需要指定表名，后续调用不用传递表名进来，如果分表了，使用SetOption设置表名, 这里的优先级更高
isSetColumns bool
columns DatabaseTableColumns
columnComment map[string]string
}
// Create 创建新的数据
func (b *BaseDao[DatabaseDataType]) Create(dbInstance *gorm.DB, data *DatabaseDataType, optionList ...define.SetOption) error {
func (b *BaseDao[DatabaseDataType, DatabaseTableColumns]) Create(dbInstance *gorm.DB, data any, optionList ...define.SetOption) error {
o := &define.Option{}
for _, itemFunc := range optionList {
itemFunc(o)
}
tableName := b.TableName
useTableName := b.tableName
if len(o.Table) > 0 {
tableName = o.Table
useTableName = o.Table
}
return dbInstance.Table(tableName).Create(data).Error
return dbInstance.Table(useTableName).Create(data).Error
}
// Update 更新数据
func (b *BaseDao[DatabaseDataType]) Update(dbInstance *gorm.DB, updateData any, optionFuncList ...define.SetOption) (int64, error) {
func (b *BaseDao[DatabaseDataType, DatabaseTableColumns]) Update(dbInstance *gorm.DB, updateData any, optionFuncList ...define.SetOption) (int64, error) {
dbInstance = b.setTxCondition(dbInstance, optionFuncList...)
r := dbInstance.Updates(updateData)
return r.RowsAffected, r.Error
}
// UpdateOne 更新一条数据
func (b *BaseDao[DatabaseDataType]) UpdateOne(dbInstance *gorm.DB, updateData any, optionFuncList ...define.SetOption) (int64, error) {
func (b *BaseDao[DatabaseDataType, DatabaseTableColumns]) UpdateOne(dbInstance *gorm.DB, updateData any, optionFuncList ...define.SetOption) (int64, error) {
optionFuncList = append(optionFuncList, WithLimit(1, 0))
return b.Update(dbInstance, updateData, optionFuncList...)
}
// List 查询数据列表
func (b *BaseDao[DatabaseDataType]) List(dbInstance *gorm.DB, result []DatabaseDataType, optionFuncList ...define.SetOption) error {
func (b *BaseDao[DatabaseDataType, DatabaseTableColumns]) List(dbInstance *gorm.DB, result *[]*DatabaseDataType, optionFuncList ...define.SetOption) error {
dbInstance = b.setTxCondition(dbInstance, optionFuncList...)
return dbInstance.Find(result).Error
}
// ListAndTotal 同时查询数据列表和数据总数
func (b *BaseDao[DatabaseDataType]) ListAndTotal(dbInstance *gorm.DB, listRes []DatabaseDataType, totalRes *int64, disableTotal bool, optionFuncList ...define.SetOption) error {
func (b *BaseDao[DatabaseDataType, DatabaseTableColumns]) ListAndTotal(dbInstance *gorm.DB, listRes *[]DatabaseDataType, totalRes *int64, disableTotal bool, optionFuncList ...define.SetOption) error {
var (
err error
)
@ -76,20 +88,20 @@ func (b *BaseDao[DatabaseDataType]) ListAndTotal(dbInstance *gorm.DB, listRes []
}
// Delete 删除数据, 硬删除, 对应 delete语句
func (b *BaseDao[DatabaseDataType]) Delete(dbInstance *gorm.DB, dataModel DatabaseDataType, optionFuncList ...define.SetOption) (int64, error) {
func (b *BaseDao[DatabaseDataType, DatabaseTableColumns]) Delete(dbInstance *gorm.DB, dataModel *DatabaseDataType, optionFuncList ...define.SetOption) (int64, error) {
dbInstance = dbInstance.Model(dataModel)
dbInstance = b.setTxCondition(dbInstance, optionFuncList...).Delete(dataModel)
return dbInstance.RowsAffected, dbInstance.Error
}
// Detail 查询详情
func (b *BaseDao[DatabaseDataType]) Detail(dbInstance *gorm.DB, result *DatabaseDataType, optionFuncList ...define.SetOption) error {
func (b *BaseDao[DatabaseDataType, DatabaseTableColumns]) Detail(dbInstance *gorm.DB, result *DatabaseDataType, optionFuncList ...define.SetOption) error {
dbInstance = b.setTxCondition(dbInstance, optionFuncList...)
return dbInstance.First(result).Error
}
// DetailByPrimaryID ...
func (b *BaseDao[DatabaseDataType]) DetailByPrimaryID(dbInstance *gorm.DB, result *DatabaseDataType, primaryID any, primaryKey ...string) error {
func (b *BaseDao[DatabaseDataType, DatabaseTableColumns]) DetailByPrimaryID(dbInstance *gorm.DB, result *DatabaseDataType, primaryID any, primaryKey ...string) error {
primaryKeyField := "id"
if len(primaryKey) > 0 {
primaryKeyField = primaryKey[0]
@ -100,12 +112,12 @@ func (b *BaseDao[DatabaseDataType]) DetailByPrimaryID(dbInstance *gorm.DB, resul
}
// IsNotFound 增加结果是否为数据不存在的判断
func (b *BaseDao[DatabaseDataType]) IsNotFound(err error) bool {
func (b *BaseDao[DatabaseDataType, DatabaseTableColumns]) IsNotFound(err error) bool {
return errors.Is(err, gorm.ErrRecordNotFound)
}
// Count 查询数量
func (b *BaseDao[DatabaseDataType]) Count(dbInstance *gorm.DB, optionFuncList ...define.SetOption) (int64, error) {
func (b *BaseDao[DatabaseDataType, DatabaseTableColumns]) Count(dbInstance *gorm.DB, optionFuncList ...define.SetOption) (int64, error) {
optionFuncList = append(optionFuncList, WithClearLimit())
dbInstance = b.setTxCondition(dbInstance, optionFuncList...)
var cnt int64
@ -113,7 +125,7 @@ func (b *BaseDao[DatabaseDataType]) Count(dbInstance *gorm.DB, optionFuncList ..
}
// Tx 执行事务
func (b *BaseDao[DatabaseDataType]) Tx(dbInstance *gorm.DB, txFunc func(dbInstance *gorm.DB) error) error {
func (b *BaseDao[DatabaseDataType, DatabaseTableColumns]) Tx(dbInstance *gorm.DB, txFunc func(dbInstance *gorm.DB) error) error {
if nil == dbInstance {
return errors.New("db instance is null")
}
@ -126,22 +138,22 @@ func (b *BaseDao[DatabaseDataType]) Tx(dbInstance *gorm.DB, txFunc func(dbInstan
}
// Begin 开启事务
func (b *BaseDao[DatabaseDataType]) Begin(dbInstance *gorm.DB) *gorm.DB {
func (b *BaseDao[DatabaseDataType, DatabaseTableColumns]) Begin(dbInstance *gorm.DB) *gorm.DB {
return dbInstance.Begin()
}
// Commit 提交事务
func (b *BaseDao[DatabaseDataType]) Commit(db *gorm.DB) error {
func (b *BaseDao[DatabaseDataType, DatabaseTableColumns]) Commit(db *gorm.DB) error {
return db.Commit().Error
}
// Rollback 回滚
func (b *BaseDao[DatabaseDataType]) Rollback(db *gorm.DB) error {
func (b *BaseDao[DatabaseDataType, DatabaseTableColumns]) Rollback(db *gorm.DB) error {
return db.Rollback().Error
}
// setTxCondition 设置查询条件
func (b *BaseDao[DatabaseDataType]) setTxCondition(inputTx *gorm.DB, optionFuncList ...define.SetOption) *gorm.DB {
func (b *BaseDao[DatabaseDataType, DatabaseTableColumns]) setTxCondition(inputTx *gorm.DB, optionFuncList ...define.SetOption) *gorm.DB {
// 构建查询条件
o := &define.Option{}
for _, fn := range optionFuncList {
@ -157,7 +169,7 @@ func (b *BaseDao[DatabaseDataType]) setTxCondition(inputTx *gorm.DB, optionFuncL
if len(o.Table) > 0 {
tx = tx.Table(o.Table)
} else {
tx = tx.Table(b.TableName)
tx = tx.Table(b.tableName)
}
if nil != o.Model {
@ -246,3 +258,43 @@ func (b *BaseDao[DatabaseDataType]) setTxCondition(inputTx *gorm.DB, optionFuncL
}
return tx
}
// TableName 获取数据表名
func (b *BaseDao[DatabaseDataType, DatabaseTableColumns]) TableName() string {
val := reflect.ValueOf(*new(DatabaseDataType)).MethodByName("TableName").Call(nil)[0]
return val.Interface().(string)
}
// ColumnComment 表字段注释
func (b *BaseDao[DatabaseDataType, DatabaseTableColumns]) ColumnComment() map[string]string {
if len(b.columnComment) > 0 {
return b.columnComment
}
val := reflect.ValueOf(new(DatabaseDataType)).MethodByName("ColumnComment").Call(nil)[0]
b.columnComment = val.Interface().(map[string]string)
return b.columnComment
}
// Columns 表字段枚举
func (b *BaseDao[DatabaseDataType, DatabaseTableColumns]) Columns() DatabaseTableColumns {
if b.isSetColumns {
return b.columns
}
b.columns = reflect.ValueOf(new(DatabaseDataType)).MethodByName("Columns").Call(nil)[0].Interface().(DatabaseTableColumns)
b.isSetColumns = true
return b.columns
}
// DetailForAny 查询任意表数据详情
func (b *BaseDao[DatabaseDataType, DatabaseTableColumns]) DetailForAny(tx *gorm.DB, tableName string, result any, optionList ...define.SetOption) error {
optionList = append(optionList, WithTable(tableName))
tx = b.setTxCondition(tx, optionList...)
return tx.First(result).Error
}
// ListForAny 查询任意表数据列表
func (b *BaseDao[DatabaseDataType, DatabaseTableColumns]) ListForAny(tx *gorm.DB, tableName string, data any, optionList ...define.SetOption) error {
optionList = append(optionList, WithTable(tableName))
tx = b.setTxCondition(tx, optionList...)
return tx.Find(data).Error
}