Module diesel::query_builder [−] [src]

Contains traits responsible for the actual construction of SQL statements

The types in this module are part of Diesel's public API, but are generally only useful for implementing Diesel plugins. Applications should generally not need to care about the types inside of this module.

Reexports

pub use self::bind_collector::BindCollector;

Modules

bind_collector
insert_statement
update_statement
where_clause

Structs

AstPass	The primary type used when walking a Diesel AST during query execution.
DebugQuery	A struct that implements `fmt::Display` and `fmt::Debug` to show the SQL representation of a query.
IncompleteDefaultInsertStatement	The structure returned by `insert_default_values`. The only thing that can be done with it is call `into`.
IncompleteInsertStatement	The structure returned by `insert`. The only thing that can be done with it is call `into`.
IncompleteUpdateStatement	The type returned by `update`. The only thing you can do with this type is call `set` on it.
UpdateStatement

Traits

AsChangeset	Types which can be passed to `update.set`.
AsQuery	Types that can be converted into a complete, typed SQL query. This is used internally to automatically add the right select clause when none is specified, or to automatically add `RETURNING *` in certain contexts
Changeset	Apps should not need to concern themselves with this trait.
IntoUpdateTarget	A type which can be passed to `update`.
Query	A complete SQL query with a return type. This can be a select statement, or a command such as `update` or `insert` with a `RETURNING` clause. Unlike `Expression`, types implementing this trait are guaranteed to be executable on their own.
QueryBuilder	Apps should not need to concern themselves with this trait.
QueryFragment	An untyped fragment of SQL. This may be a complete SQL command (such as an update statement without a `RETURNING` clause), or a subsection (such as our internal types used to represent a `WHERE` clause). All methods on `Connection` that execute a query require this trait to be implemented.
QueryId

Functions

debug_query

Takes a query QueryFragment expression as an argument and returns a type that implements fmt::Display and fmt::Debug to show the query.

Type Definitions

BuildQueryResult