pub trait QueryBuilder<DB: Backend> {
// Required methods
fn push_sql(&mut self, sql: &str);
fn push_identifier(&mut self, identifier: &str) -> QueryResult<()>;
fn push_bind_param(&mut self);
fn finish(self) -> String;
}Expand description
Constructs a SQL query from a Diesel AST.
The only reason you should ever need to interact with this trait is if you
are extending Diesel with support for a new backend. Plugins which extend
the query builder with new capabilities will interact with AstPass
instead.
Required Methods§
Sourcefn push_identifier(&mut self, identifier: &str) -> QueryResult<()>
fn push_identifier(&mut self, identifier: &str) -> QueryResult<()>
Quote identifier, and add it to the end of the query being
constructed.
Sourcefn push_bind_param(&mut self)
fn push_bind_param(&mut self)
Add a placeholder for a bind parameter to the end of the query being constructed.