Enum Db

pub enum Db {
    None,
}

Variants

None

Implementations

impl Db

pub fn load(path: &str) -> Result<Db, String>

pub fn new(config: Config) -> Result<Db, String>

pub fn get_config_default(&mut self) -> String

pub fn get_config_list(&mut self) -> Vec<String>

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

pub fn connection_add( &mut self, config_name: &str, connection: Connection, ) -> Db

增加配置

pub fn table_create(&mut self, options: TableOptions) -> JsonValue

具体功能

pub fn table_update(&mut self, options: TableOptions) -> JsonValue

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

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

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

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

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

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

pub 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

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

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

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

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

坐标系

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

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

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

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

pub fn count(&mut self) -> JsonValue

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

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

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

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

pub fn select(&mut self) -> JsonValue

pub fn find(&mut self) -> JsonValue

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

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

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

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

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

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

pub fn get_connection(&mut self) -> Connection

pub fn database_tables(&mut self) -> JsonValue

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

pub fn backups(&mut self, filename: &str) -> bool

pub fn delete(&mut self) -> JsonValue

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

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

pub fn transaction(&mut self) -> bool

pub fn commit(&mut self) -> bool

pub fn rollback(&mut self) -> bool

pub fn sql(&mut self, sql: &str) -> Result<JsonValue, String>

pub fn sql_execute(&mut self, sql: &str) -> Result<JsonValue, String>

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

自增

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

自减

pub fn buildsql(&mut self) -> String

pub fn join( &mut self, table: &str, main_fields: &str, right_fields: &str, ) -> &mut Self

连接

• table 表名
• field 本表关联字段名

pub fn join_inner( &mut self, table: &str, main_fields: &str, second_fields: &str, ) -> &mut Self

内连接–用来取交集

• table 链表表名
• main_fields 主表字段
• second_fields 附表关联字段

Trait Implementations

impl Clone for Db

fn clone(&self) -> Db

Returns a duplicate of the value.

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

Performs copy-assignment from source.