Struct QueryContext 

pub struct QueryContext { /* private fields */ }

与查询上下文相关的结构体

Implementations

impl QueryContext

pub fn new() -> Self

创建一个实例

pub fn set_query(&mut self, query: impl ToString)

设置 query参数

pub fn add_argument(&mut self, arg: impl ToString)

添加参数到 argumentsVec<String>

pub fn append_arguments(&mut self, arguments: &mut Vec<String>)

追加查询参数

pub fn set_last_insert_id(&mut self, id: i64)

设置最后的插入ID

pub fn set_query_result(&mut self, rows_affected: Option<u64>, success: bool)

设置查询结果

pub fn get_start_time(&self) -> Instant

返回开始时间

pub fn get_query_id(&self) -> Uuid

返回查询ID

pub fn get_query(&self) -> &str

pub fn get_arguments(&self) -> &[String]

pub fn get_last_insert_id(&self) -> Option<i64>

pub fn get_rows_affected(&self) -> Option<u64>

pub fn is_success(&self) -> bool

pub fn format_arguments(&self) -> String

格式化参数. 将所有的参数通过 , 组合成字符串

Trait Implementations

impl Clone for QueryContext

fn clone(&self) -> QueryContext

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for QueryContext

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

Formats the value using the given formatter.

impl Default for QueryContext

fn default() -> Self

Returns the “default value” for a type.