[−][src]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;
}

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

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.

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Implementors

impl QueryBuilder<Mysql> for MysqlQueryBuilder
[src]

impl QueryBuilder<Pg> for PgQueryBuilder
[src]

impl QueryBuilder<Sqlite> for SqliteQueryBuilder
[src]

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