Module diesel::query_dsl

source ·
Expand description

Traits that construct SELECT statements

Traits in this module have methods that generally map to the keyword for the corresponding clause in SQL, unless it conflicts with a Rust keyword (such as WHERE/where).

Methods for constructing queries lives on the QueryDsl trait. Methods for executing queries live on RunQueryDsl.

See also expression_methods and dsl.

Modules

  • methods
    The traits used by QueryDsl.

Traits

  • BelongingToDsl
    Constructs a query that finds record(s) based on directional association with other record(s).
  • CombineDsl
    Extension trait to combine queries using a combinator like UNION, INTERSECT or EXPECT with or without ALL rule for duplicates
  • CompatibleTypei-implement-a-third-party-backend-and-opt-into-breaking-changes
  • JoinOnDsl
    Specify the ON clause for a join statement. This will override any implicit ON clause that would come from joinable!
  • QueryDsl
    Methods used to construct select statements.
  • RunQueryDsl
    Methods used to execute queries.
  • SaveChangesDsl
    Sugar for types which implement both AsChangeset and Identifiable
  • UpdateAndFetchResults
    A trait defining how to update a record and fetch the updated entry on a certain backend.