Trait diesel::query_builder::QueryBuilder

pub trait QueryBuilder<DB: Backend> {
    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;
}

Apps should not need to concern themselves with this trait.

This is the trait used to actually construct a SQL query. You will take one of these as an argument if you're implementing QueryFragment manually.

Required Methods

fn push_sql(&mut self, sql: &str)

Add sql to the end of the query being constructed.

fn push_identifier(&mut self, identifier: &str) -> QueryResult<()>

Quote identifier, and add it to the end of the query being constructed.

fn push_bind_param(&mut self)

Add a placeholder for a bind parameter to the end of the query being constructed.

fn finish(self) -> String

Returns the constructed SQL query.

Implementors

• impl QueryBuilder<Mysql> for MysqlQueryBuilder
• impl QueryBuilder<Pg> for PgQueryBuilder
• impl QueryBuilder<Sqlite> for SqliteQueryBuilder