Struct sea_query_diesel::SeaQuery

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pub struct SeaQuery<DB: Backend> { /* private fields */ }

Trait Implementations§

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impl<DB> Query for SeaQuery<DB>
where DB: Backend,

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type SqlType = Untyped

The SQL type that this query represents. Read more
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impl<DB> QueryFragment<DB> for SeaQuery<DB>
where DB: Backend,

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

Walk over this QueryFragment for all passes. Read more
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fn to_sql( &self, out: &mut <DB as Backend>::QueryBuilder, backend: &DB, ) -> Result<(), Error>

Converts this QueryFragment to its SQL representation. Read more
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fn collect_binds<'b>( &'b self, out: &mut <DB as Backend>::BindCollector<'b>, metadata_lookup: &mut <DB as TypeMetadata>::MetadataLookup, backend: &'b DB, ) -> Result<(), Error>

Serializes all bind parameters in this query. Read more
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fn is_safe_to_cache_prepared(&self, backend: &DB) -> Result<bool, Error>

Is this query safe to store in the prepared statement cache? Read more
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fn is_noop(&self, backend: &DB) -> Result<bool, Error>

Does walking this AST have any effect?
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impl<DB: Backend> QueryId for SeaQuery<DB>

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type QueryId = ()

A type which uniquely represents Self in a SQL query. Read more
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const HAS_STATIC_QUERY_ID: bool = false

Can the SQL generated by Self be uniquely identified by its type? Read more
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fn query_id() -> Option<TypeId>

Returns the type id of Self::QueryId if Self::HAS_STATIC_QUERY_ID. Returns None otherwise. Read more
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impl<Conn: Connection> RunQueryDsl<Conn> for SeaQuery<Conn::Backend>

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fn execute(self, conn: &mut Conn) -> Result<usize, Error>
where Conn: Connection, Self: ExecuteDsl<Conn>,

Executes the given command, returning the number of rows affected. Read more
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fn load<'query, U>(self, conn: &mut Conn) -> Result<Vec<U>, Error>
where Self: LoadQuery<'query, Conn, U>,

Executes the given query, returning a Vec with the returned rows. Read more
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fn load_iter<'conn, 'query, U, B>( self, conn: &'conn mut Conn, ) -> Result<Self::RowIter<'conn>, Error>
where 'query: 'conn, U: 'conn, Self: LoadQuery<'query, Conn, U, B> + 'conn,

Executes the given query, returning an Iterator with the returned rows. Read more
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fn get_result<'query, U>(self, conn: &mut Conn) -> Result<U, Error>
where Self: LoadQuery<'query, Conn, U>,

Runs the command, and returns the affected row. Read more
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fn get_results<'query, U>(self, conn: &mut Conn) -> Result<Vec<U>, Error>
where Self: LoadQuery<'query, Conn, U>,

Runs the command, returning an Vec with the affected rows. Read more

Auto Trait Implementations§

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impl<DB> Freeze for SeaQuery<DB>

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impl<DB> !RefUnwindSafe for SeaQuery<DB>

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impl<DB> Send for SeaQuery<DB>

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impl<DB> !Sync for SeaQuery<DB>

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impl<DB> Unpin for SeaQuery<DB>

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impl<DB> !UnwindSafe for SeaQuery<DB>

Blanket Implementations§

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impl<T> Any for T
where T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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impl<T> AsQuery for T
where T: Query,

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type SqlType = <T as Query>::SqlType

The SQL type of Self::Query
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type Query = T

What kind of query does this type represent?
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fn as_query(self) -> <T as AsQuery>::Query

Converts a type which semantically represents a SQL query into the actual query being executed. See the trait level docs for more.
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impl<T> Borrow<T> for T
where T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for T
where T: ?Sized,

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fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
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impl<Conn, DB, T> ExecuteDsl<Conn, DB> for T
where Conn: Connection<Backend = DB>, DB: Backend, T: QueryFragment<DB> + QueryId,

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fn execute(query: T, conn: &mut Conn) -> Result<usize, Error>

Execute this command
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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T, U> Into<U> for T
where U: From<T>,

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fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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impl<T> IntoSql for T

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fn into_sql<T>(self) -> Self::Expression

Convert self to an expression for Diesel’s query builder. Read more
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fn as_sql<'a, T>(&'a self) -> <&'a Self as AsExpression<T>>::Expression

Convert &self to an expression for Diesel’s query builder. Read more
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impl<T, DB> QueryFragmentForCachedStatement<DB> for T
where DB: Backend, <DB as Backend>::QueryBuilder: Default, T: QueryFragment<DB>,

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fn construct_sql(&self, backend: &DB) -> Result<String, Error>

Convert the query fragment into a SQL string for the given backend
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fn is_safe_to_cache_prepared(&self, backend: &DB) -> Result<bool, Error>

Check whether it’s safe to cache the query
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impl<T, U> TryFrom<U> for T
where U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

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type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.