Struct diesel::query_builder::ValuesClause

pub struct ValuesClause<T, Tab> {
    pub values: T,
    /* private fields */
}

Available on crate feature i-implement-a-third-party-backend-and-opt-into-breaking-changes only.

This type represents a values clause used as part of insert statements

Diesel exposes this type for third party backends so that they can implement batch insert support

Fields

values: T

Values to insert

Trait Implementations

impl<T: Clone, Tab: Clone> Clone for ValuesClause<T, Tab>

fn clone(&self) -> ValuesClause<T, Tab>

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl<T: Debug, Tab: Debug> Debug for ValuesClause<T, Tab>

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl<T: Default, Tab> Default for ValuesClause<T, Tab>

fn default() -> Self

Returns the “default value” for a type.

impl<T, Tab, DB> QueryFragment<DB> for ValuesClause<T, Tab>where DB: Backend, Tab: Table, T: InsertValues<Tab, DB>, DefaultValues: QueryFragment<DB>,

fn walk_ast<'b>(&'b self, out: AstPass<'_, 'b, DB>) -> QueryResult<()>

Walk over this QueryFragment for all passes.

fn to_sql(&self, out: &mut DB::QueryBuilder, backend: &DB) -> QueryResult<()>

Available on crate feature i-implement-a-third-party-backend-and-opt-into-breaking-changes only.

Converts this QueryFragment to its SQL representation.

fn collect_binds<'b>( &'b self, out: &mut DB::BindCollector<'b>, metadata_lookup: &mut DB::MetadataLookup, backend: &'b DB ) -> QueryResult<()>

Available on crate feature i-implement-a-third-party-backend-and-opt-into-breaking-changes only.

Serializes all bind parameters in this query.

fn is_safe_to_cache_prepared(&self, backend: &DB) -> QueryResult<bool>

Available on crate feature i-implement-a-third-party-backend-and-opt-into-breaking-changes only.

Is this query safe to store in the prepared statement cache?

fn is_noop(&self, backend: &DB) -> QueryResult<bool>

Available on crate feature i-implement-a-third-party-backend-and-opt-into-breaking-changes only.

Does walking this AST have any effect?

impl<T: QueryId, Tab: QueryId> QueryId for ValuesClause<T, Tab>

type QueryId = ValuesClause<<T as QueryId>::QueryId, <Tab as QueryId>::QueryId>

A type which uniquely represents Self in a SQL query.

const HAS_STATIC_QUERY_ID: bool = _

Can the SQL generated by Self be uniquely identified by its type?

fn query_id() -> Option<TypeId>

Returns the type id of Self::QueryId if Self::HAS_STATIC_QUERY_ID. Returns None otherwise.

impl<T: Copy, Tab: Copy> Copy for ValuesClause<T, Tab>

impl<T, Table> UndecoratedInsertRecord<Table> for ValuesClause<T, Table>where T: UndecoratedInsertRecord<Table>,