gdb
链式操作使用方式简单灵活,是GF
框架官方推荐的数据库操作方式。链式操作可以通过数据库对象的db.Table
/db.Model
方法或者事务对象的tx.Table
/tx.Model
方法,基于指定的数据表返回一个链式操作对象*Model
,该对象可以执行以下方法。
当前方法列表可能滞后于源代码,详细的方法列表请参考接口文档: https://godoc.org/github.com/gogf/gf/database/gdb#Model
// 写入/更新/删除基本操作 func (m *Model) Insert(data ...interface{}) (result sql.Result, err error) func (m *Model) InsertAndGetId(data ...interface{}) (lastInsertId int64, err error) func (m *Model) InsertIgnore(data ...interface{}) (result sql.Result, err error) func (m *Model) Replace(data ...interface{}) (result sql.Result, err error) func (m *Model) Save(data ...interface{}) (result sql.Result, err error) func (m *Model) Update(dataAndWhere ...interface{}) (result sql.Result, err error) func (m *Model) Delete(where ...interface{}) (result sql.Result, err error) // 基本查询操作 func (m *Model) All(where ...interface{} (Result, error) func (m *Model) One(where ...interface{}) (Record, error) func (m *Model) Array(fieldsAndWhere ...interface{}) ([]Value, error) func (m *Model) Value(fieldsAndWhere ...interface{}) (Value, error) func (m *Model) Count(where ...interface{}) (int, error) func (m *Model) CountColumn(column string) (int, error) // 常用基本统计 func (m *Model) Min(column string) (float64, error) func (m *Model) Max(column string) (float64, error) func (m *Model) Avg(column string) (float64, error) func (m *Model) Sum(column string) (float64, error) // 字段自增/自减 func (m *Model) Increment(column string, amount float64) (sql.Result, error) func (m *Model) Decrement(column string, amount float64) (sql.Result, error) // 主键查询操作 func (m *Model) FindAll(where ...interface{}) (Result, error) func (m *Model) FindOne(where ...interface{}) (Record, error) func (m *Model) FindArray(fieldsAndWhere ...interface{}) (Value, error) func (m *Model) FindValue(fieldsAndWhere ...interface{}) (Value, error) func (m *Model) FindCount(where ...interface{}) (int, error) func (m *Model) FindScan(pointer interface{}, where ...interface{}) error // 查询转换操作 func (m *Model) Struct(pointer interface{}) error func (m *Model) Structs(pointer interface{}) error func (m *Model) Scan(pointer interface{}) error func (m *Model) ScanList(listPointer interface{}, attributeName string, relation ...string) (err error) // 联表查询方法 func (m *Model) LeftJoin(table ...string) *Model func (m *Model) RightJoin(table ...string) *Model func (m *Model) InnerJoin(table ...string) *Model // With关联查询 func (m *Model) With(object interface{}) *Model func (m *Model) WithAll() *Model // 条件查询方法 func (m *Model) Where(where interface{}, args...interface{}) *Model func (m *Model) WherePri(where interface{}, args ...interface{}) *Model func (m *Model) WhereBetween(column string, min, max interface{}) *Model func (m *Model) WhereLike(column string, like interface{}) *Model func (m *Model) WhereIn(column string, in interface{}) *Model func (m *Model) WhereNull(columns ...string) *Model func (m *Model) WhereNotBetween(column string, min, max interface{}) *Model func (m *Model) WhereNotLike(column string, like interface{}) *Model func (m *Model) WhereNotIn(column string, in interface{}) *Model func (m *Model) WhereNotNull(columns ...string) *Model func (m *Model) WhereOr(where interface{}, args ...interface{}) *Model func (m *Model) WhereOrBetween(column string, min, max interface{}) *Model func (m *Model) WhereOrLike(column string, like interface{}) *Model func (m *Model) WhereOrIn(column string, in interface{}) *Model func (m *Model) WhereOrNull(columns ...string) *Model func (m *Model) WhereOrNotBetween(column string, min, max interface{}) *Model func (m *Model) WhereOrNotLike(column string, like interface{}) *Model func (m *Model) WhereOrNotIn(column string, in interface{}) *Model func (m *Model) WhereOrNotNull(columns ...string) *Model // 分组排序方法 func (m *Model) Group(group string) *Model func (m *Model) Order(order string) *Model func (m *Model) OrderAsc(column string) *Model func (m *Model) OrderDesc(column string) *Model func (m *Model) OrderRandom() *Model // 条件过滤方法 func (m *Model) Fields(fields string) *Model func (m *Model) FieldsEx(fields string) *Model func (m *Model) Data(data...interface{}) *Model func (m *Model) Batch(batch int) *Model func (m *Model) Filter() *Model func (m *Model) Safe(safe...bool) *Model func (m *Model) Having(having interface{}, args ...interface{}) *Model func (m *Model) Offset(offset int) *Model func (m *Model) Limit(start int, limit int) *Model func (m *Model) OmitEmpty() *Model func (m *Model) Page(page, limit int) (*Model) func (m *Model) Distinct() *Model // 数据库/事务切换 func (m *Model) DB(db DB) *Model func (m *Model) TX(tx *TX) *Model // 主从自定义切换 func (m *Model) Master() *Model func (m *Model) Slave() *Model // 数据互斥锁操作 func (m *Model) LockUpdate() *Model func (m *Model) LockShared() *Model // 常用工具方法 func (m *Model) Ctx(ctx context.Context) *Model func (m *Model) Clone() *Model func (m *Model) Cache(duration time.Duration, name ...string) *Model func (m *Model) As(as string) *Model func (m *Model) Chunk(limit int, callback func(result Result, err error) bool) func (m *Model) Schema(schema string) *Model func (m *Model) Option(option int) *Model func (m *Model) Args(args ...interface{}) *Model func (m *Model) Unscoped() *Model func (m *Model) HasField(field string) (bool, error) func (m *Model) GetFieldsStr(prefix ...string) string func (m *Model) GetFieldsExStr(fields string, prefix ...string) string