Struct microrm::query::QueryInterface

pub struct QueryInterface<'l> { /* private fields */ }

The query interface for a database.

As the query interface provides some level of caching, try to strive for as much sharing as possible. Passing around QueryInterface references instead of DB references is a good way to achieve this. However, QueryInterface is explicitly !Send, so you may need to use something like a DBPool to acquire instances locally if you’re using threads or asynchronous programming.

Implementations

impl<'l> QueryInterface<'l>

pub fn new(db: &'l DB) -> Self

Creates a QueryInterface. Generally you probably want to be using DBPool::query_interface().

impl<'l> QueryInterface<'l>

pub fn insert<T: Entity + Serialize>( &self, m: &T ) -> Result<<T as Entity>::ID, Error>

Add an entity to its table in the database. Alias for add.

pub fn add<T: Entity + Serialize>( &self, m: &T ) -> Result<<T as Entity>::ID, Error>

Add an entity to its table in the database.

impl<'l> QueryInterface<'l>

pub fn get<'a, 'b, T: Entity>(&'a self) -> Select<'b, 'l, T>

where 'a: 'b,

Get an entity from its table, aka perform a SELECT query.

pub fn update<'a, 'b, T: Entity>(&'a self) -> Update<'b, 'l, T>

where 'a: 'b,

Update an entity in its table, aka perform an UPDATE query, by selecting columns.

pub fn delete<'a, 'b, T: Entity>(&'a self) -> Delete<'b, 'l, T>

where 'a: 'b,

Delete an entity from its table, aka perform a DELETE query.

impl<'l> QueryInterface<'l>

pub fn put<T: Entity>(&self, what: &WithID<T>) -> Result<(), Error>

Update an entity in its table, aka perform an UPDATE query, for all columns.