Enum br_db::Db

pub enum Db {
    None,
}

Variants

None

Implementations

impl Db

pub fn new(conf: JsonValue) -> Db

pub fn connection(&mut self, name: &str) -> Db

Trait Implementations

impl Clone for Db

fn clone(&self) -> Db

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for Db

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Mode for Db

fn order(&mut self, field: &str, by: bool) -> &mut Self

排序

• field 排序字段
• by 排序方法 true 降序 false 升序

fn inc(&mut self, field: &str, num: f64) -> &mut Self

自增

fn dec(&mut self, field: &str, num: f64) -> &mut Self

自减

fn database_create(&mut self, name: &str) -> bool

创建数据库

fn table_create(&mut self, data: Table) -> JsonValue

fn table_update(&mut self, data: Table) -> JsonValue

fn table_info(&mut self, table: &str) -> JsonValue

获取表信息

fn table_is_exist(&mut self, name: &str) -> bool

判断表是否存在

fn table(&mut self, name: &str) -> &mut Self

当前表

fn autoinc(&mut self) -> &mut Self

主键自增

fn fetch_sql(&mut self) -> &mut Self

返回sql语句

fn group(&mut self, field: &str) -> &mut Self

分组

fn distinct(&mut self) -> &mut Self

消除重复记录

fn json(&mut self, field: &str) -> &mut Self

JSON 字段

fn column(&mut self, field: &str) -> JsonValue

查询指定列并返回数组

fn where_and( &mut self, field: &str, compare: &str, value: JsonValue ) -> &mut Self

查询

fn where_or( &mut self, field: &str, compare: &str, value: JsonValue ) -> &mut Self

fn where_column( &mut self, field_a: &str, compare: &str, field_b: &str ) -> &mut Self

比较两个列

fn count(&mut self) -> JsonValue

总数量

fn max(&mut self, field: &str) -> JsonValue

最大值

fn min(&mut self, field: &str) -> JsonValue

最小值

fn sum(&mut self, field: &str) -> JsonValue

合计

fn avg(&mut self, field: &str) -> JsonValue

平均值

fn select(&mut self) -> JsonValue

获取集合

fn find(&mut self) -> JsonValue

获取单记录

fn value(&mut self, field: &str) -> JsonValue

获取单一列值

fn insert(&mut self, data: JsonValue) -> JsonValue

添加

fn insert_all(&mut self, data: JsonValue) -> JsonValue

批量添加

fn page(&mut self, page: i32, limit: i32) -> &mut Self

分页

fn update(&mut self, data: JsonValue) -> JsonValue

更新

fn delete(&mut self) -> JsonValue

删除

fn field(&mut self, name: &str) -> &mut Self

显示字段

fn hidden(&mut self, name: &str) -> &mut Self

隐藏字段

fn transaction(&mut self) -> bool

事务开始

fn commit(&mut self) -> bool

事务提交

fn rollback(&mut self) -> bool

事务回滚

fn sql(&mut self, sql: &str) -> JsonValue

sql语句执行