Trait sqlx_core::encode::Encode

pub trait Encode<'q, DB: Database> {
    #[must_use]
    fn encode_by_ref(
        &self, 
        buf: &mut <DB as HasArguments<'q>>::ArgumentBuffer
    ) -> IsNull;

    #[must_use]
    fn encode(
        self, 
        buf: &mut <DB as HasArguments<'q>>::ArgumentBuffer
    ) -> IsNull
    where
        Self: Sized,
    { ... }
    fn produces(&self) -> Option<DB::TypeInfo> { ... }
    fn size_hint(&self) -> usize { ... }
}

Encode a single value to be sent to the database.

Required methods

#[must_use]

fn encode_by_ref(
    &self,
    buf: &mut <DB as HasArguments<'q>>::ArgumentBuffer
) -> IsNull

Writes the value of self into buf without moving self.

Where possible, make use of encode instead as it can take advantage of re-using memory.

Provided methods

#[must_use]

fn encode(self, buf: &mut <DB as HasArguments<'q>>::ArgumentBuffer) -> IsNull where
    Self: Sized, 

Writes the value of self into buf in the expected format for the database.

fn produces(&self) -> Option<DB::TypeInfo>

fn size_hint(&self) -> usize

Implementations on Foreign Types

impl<'q, T, DB: Database> Encode<'q, DB> for &T where
    T: Encode<'q, DB>, 

fn encode(self, buf: &mut <DB as HasArguments<'q>>::ArgumentBuffer) -> IsNull

fn encode_by_ref(
    &self,
    buf: &mut <DB as HasArguments<'q>>::ArgumentBuffer
) -> IsNull

fn produces(&self) -> Option<DB::TypeInfo>

fn size_hint(&self) -> usize

impl<'q, DB> Encode<'q, DB> for JsonValue where
    Json<&'a Self>: Encode<'q, DB>,
    DB: Database, 

fn encode_by_ref(
    &self,
    buf: &mut <DB as HasArguments<'q>>::ArgumentBuffer
) -> IsNull

impl<'q> Encode<'q, Any> for bool where
    bool: AnyEncode<'q>, 

fn encode_by_ref(&self, buf: &mut AnyArgumentBuffer<'q>) -> IsNull

impl<'q> Encode<'q, Any> for i32 where
    i32: AnyEncode<'q>, 

fn encode_by_ref(&self, buf: &mut AnyArgumentBuffer<'q>) -> IsNull

impl<'q> Encode<'q, Any> for i64 where
    i64: AnyEncode<'q>, 

fn encode_by_ref(&self, buf: &mut AnyArgumentBuffer<'q>) -> IsNull

impl<'q> Encode<'q, Any> for f32 where
    f32: AnyEncode<'q>, 

fn encode_by_ref(&self, buf: &mut AnyArgumentBuffer<'q>) -> IsNull

impl<'q> Encode<'q, Any> for f64 where
    f64: AnyEncode<'q>, 

fn encode_by_ref(&self, buf: &mut AnyArgumentBuffer<'q>) -> IsNull

impl<'q> Encode<'q, Any> for &'q str where
    &'q str: AnyEncode<'q>, 

fn encode_by_ref(&self, buf: &mut AnyArgumentBuffer<'q>) -> IsNull

impl<'q> Encode<'q, Any> for String where
    String: AnyEncode<'q>, 

fn encode_by_ref(&self, buf: &mut AnyArgumentBuffer<'q>) -> IsNull

impl<'q, T> Encode<'q, Any> for Option<T> where
    T: Encode<'q, Any> + Type<Any> + 'q, 

fn produces(&self) -> Option<<Any as Database>::TypeInfo>

fn encode(self, buf: &mut <Any as HasArguments<'q>>::ArgumentBuffer) -> IsNull

fn encode_by_ref(
    &self,
    buf: &mut <Any as HasArguments<'q>>::ArgumentBuffer
) -> IsNull

fn size_hint(&self) -> usize

impl<'q, T> Encode<'q, Postgres> for Vec<T> where
    &'a [T]: Encode<'q, Postgres>,
    T: Encode<'q, Postgres>, 

fn encode_by_ref(&self, buf: &mut PgArgumentBuffer) -> IsNull

impl<'q, T> Encode<'q, Postgres> for &[T] where
    T: Encode<'q, Postgres> + Type<Postgres>, 

fn encode_by_ref(&self, buf: &mut PgArgumentBuffer) -> IsNull

impl Encode<'_, Postgres> for bool

fn encode_by_ref(&self, buf: &mut PgArgumentBuffer) -> IsNull

impl Encode<'_, Postgres> for &[u8]

fn encode_by_ref(&self, buf: &mut PgArgumentBuffer) -> IsNull

impl Encode<'_, Postgres> for Vec<u8>

fn encode_by_ref(&self, buf: &mut PgArgumentBuffer) -> IsNull

impl Encode<'_, Postgres> for f32

fn encode_by_ref(&self, buf: &mut PgArgumentBuffer) -> IsNull

impl Encode<'_, Postgres> for f64

fn encode_by_ref(&self, buf: &mut PgArgumentBuffer) -> IsNull

impl Encode<'_, Postgres> for i8

fn encode_by_ref(&self, buf: &mut PgArgumentBuffer) -> IsNull

impl Encode<'_, Postgres> for i16

fn encode_by_ref(&self, buf: &mut PgArgumentBuffer) -> IsNull

impl Encode<'_, Postgres> for u32

fn encode_by_ref(&self, buf: &mut PgArgumentBuffer) -> IsNull

impl Encode<'_, Postgres> for i32

fn encode_by_ref(&self, buf: &mut PgArgumentBuffer) -> IsNull

impl Encode<'_, Postgres> for i64

fn encode_by_ref(&self, buf: &mut PgArgumentBuffer) -> IsNull

impl Encode<'_, Postgres> for Duration

fn encode_by_ref(&self, buf: &mut PgArgumentBuffer) -> IsNull

fn size_hint(&self) -> usize

impl Encode<'_, Postgres> for Duration

fn encode_by_ref(&self, buf: &mut PgArgumentBuffer) -> IsNull

fn size_hint(&self) -> usize

impl Encode<'_, Postgres> for Duration

fn encode_by_ref(&self, buf: &mut PgArgumentBuffer) -> IsNull

fn size_hint(&self) -> usize

impl Encode<'_, Postgres> for &str

fn encode_by_ref(&self, buf: &mut PgArgumentBuffer) -> IsNull

impl Encode<'_, Postgres> for String

fn encode_by_ref(&self, buf: &mut PgArgumentBuffer) -> IsNull

impl Encode<'_, Postgres> for BigDecimal

Panics

If this BigDecimal cannot be represented by PgNumeric.

fn encode_by_ref(&self, buf: &mut PgArgumentBuffer) -> IsNull

fn size_hint(&self) -> usize

impl Encode<'_, Postgres> for Decimal

Panics

If this Decimal cannot be represented by PgNumeric.

fn encode_by_ref(&self, buf: &mut PgArgumentBuffer) -> IsNull

impl Encode<'_, Postgres> for NaiveDate

fn encode_by_ref(&self, buf: &mut PgArgumentBuffer) -> IsNull

fn size_hint(&self) -> usize

impl Encode<'_, Postgres> for NaiveDateTime

fn encode_by_ref(&self, buf: &mut PgArgumentBuffer) -> IsNull

fn size_hint(&self) -> usize

impl<Tz: TimeZone> Encode<'_, Postgres> for DateTime<Tz>

fn encode_by_ref(&self, buf: &mut PgArgumentBuffer) -> IsNull

fn size_hint(&self) -> usize

impl Encode<'_, Postgres> for NaiveTime

fn encode_by_ref(&self, buf: &mut PgArgumentBuffer) -> IsNull

fn size_hint(&self) -> usize

impl Encode<'_, Postgres> for Date

fn encode_by_ref(&self, buf: &mut PgArgumentBuffer) -> IsNull

fn size_hint(&self) -> usize

impl Encode<'_, Postgres> for PrimitiveDateTime

fn encode_by_ref(&self, buf: &mut PgArgumentBuffer) -> IsNull

fn size_hint(&self) -> usize

impl Encode<'_, Postgres> for OffsetDateTime

fn encode_by_ref(&self, buf: &mut PgArgumentBuffer) -> IsNull

fn size_hint(&self) -> usize

impl Encode<'_, Postgres> for Time

fn encode_by_ref(&self, buf: &mut PgArgumentBuffer) -> IsNull

fn size_hint(&self) -> usize

impl Encode<'_, Postgres> for Uuid

fn encode_by_ref(&self, buf: &mut PgArgumentBuffer) -> IsNull

impl Encode<'_, Postgres> for IpNetwork

fn encode_by_ref(&self, buf: &mut PgArgumentBuffer) -> IsNull

fn size_hint(&self) -> usize

impl Encode<'_, Postgres> for BitVec

fn encode_by_ref(&self, buf: &mut PgArgumentBuffer) -> IsNull

fn size_hint(&self) -> usize

impl<'q, T> Encode<'q, Postgres> for Option<T> where
    T: Encode<'q, Postgres> + Type<Postgres> + 'q, 

fn produces(&self) -> Option<<Postgres as Database>::TypeInfo>

fn encode(
    self,
    buf: &mut <Postgres as HasArguments<'q>>::ArgumentBuffer
) -> IsNull

fn encode_by_ref(
    &self,
    buf: &mut <Postgres as HasArguments<'q>>::ArgumentBuffer
) -> IsNull

fn size_hint(&self) -> usize

impl<'q> Encode<'q, Sqlite> for bool

fn encode_by_ref(&self, args: &mut Vec<SqliteArgumentValue<'q>>) -> IsNull

impl<'q> Encode<'q, Sqlite> for &'q [u8]

fn encode_by_ref(&self, args: &mut Vec<SqliteArgumentValue<'q>>) -> IsNull

impl<'q> Encode<'q, Sqlite> for Vec<u8>

fn encode(self, args: &mut Vec<SqliteArgumentValue<'q>>) -> IsNull

fn encode_by_ref(&self, args: &mut Vec<SqliteArgumentValue<'q>>) -> IsNull

impl<Tz: TimeZone> Encode<'_, Sqlite> for DateTime<Tz> where
    Tz::Offset: Display, 

fn encode_by_ref(&self, buf: &mut Vec<SqliteArgumentValue<'_>>) -> IsNull

impl Encode<'_, Sqlite> for NaiveDateTime

fn encode_by_ref(&self, buf: &mut Vec<SqliteArgumentValue<'_>>) -> IsNull

impl Encode<'_, Sqlite> for NaiveDate

fn encode_by_ref(&self, buf: &mut Vec<SqliteArgumentValue<'_>>) -> IsNull

impl Encode<'_, Sqlite> for NaiveTime

fn encode_by_ref(&self, buf: &mut Vec<SqliteArgumentValue<'_>>) -> IsNull

impl<'q> Encode<'q, Sqlite> for f32

fn encode_by_ref(&self, args: &mut Vec<SqliteArgumentValue<'q>>) -> IsNull

impl<'q> Encode<'q, Sqlite> for f64

fn encode_by_ref(&self, args: &mut Vec<SqliteArgumentValue<'q>>) -> IsNull

impl<'q> Encode<'q, Sqlite> for i8

fn encode_by_ref(&self, args: &mut Vec<SqliteArgumentValue<'q>>) -> IsNull

impl<'q> Encode<'q, Sqlite> for i16

fn encode_by_ref(&self, args: &mut Vec<SqliteArgumentValue<'q>>) -> IsNull

impl<'q> Encode<'q, Sqlite> for i32

fn encode_by_ref(&self, args: &mut Vec<SqliteArgumentValue<'q>>) -> IsNull

impl<'q> Encode<'q, Sqlite> for i64

fn encode_by_ref(&self, args: &mut Vec<SqliteArgumentValue<'q>>) -> IsNull

impl<'q> Encode<'q, Sqlite> for &'q str

fn encode_by_ref(&self, args: &mut Vec<SqliteArgumentValue<'q>>) -> IsNull

impl<'q> Encode<'q, Sqlite> for String

fn encode(self, args: &mut Vec<SqliteArgumentValue<'q>>) -> IsNull

fn encode_by_ref(&self, args: &mut Vec<SqliteArgumentValue<'q>>) -> IsNull

impl<'q> Encode<'q, Sqlite> for u8

fn encode_by_ref(&self, args: &mut Vec<SqliteArgumentValue<'q>>) -> IsNull

impl<'q> Encode<'q, Sqlite> for u16

fn encode_by_ref(&self, args: &mut Vec<SqliteArgumentValue<'q>>) -> IsNull

impl<'q> Encode<'q, Sqlite> for u32

fn encode_by_ref(&self, args: &mut Vec<SqliteArgumentValue<'q>>) -> IsNull

impl<'q> Encode<'q, Sqlite> for Uuid

fn encode_by_ref(&self, args: &mut Vec<SqliteArgumentValue<'q>>) -> IsNull

impl<'q> Encode<'q, Sqlite> for Hyphenated

fn encode_by_ref(&self, args: &mut Vec<SqliteArgumentValue<'q>>) -> IsNull

impl<'q, T> Encode<'q, Sqlite> for Option<T> where
    T: Encode<'q, Sqlite> + Type<Sqlite> + 'q, 

fn produces(&self) -> Option<<Sqlite as Database>::TypeInfo>

fn encode(
    self,
    buf: &mut <Sqlite as HasArguments<'q>>::ArgumentBuffer
) -> IsNull

fn encode_by_ref(
    &self,
    buf: &mut <Sqlite as HasArguments<'q>>::ArgumentBuffer
) -> IsNull

fn size_hint(&self) -> usize

impl Encode<'_, MySql> for bool

fn encode_by_ref(&self, buf: &mut Vec<u8>) -> IsNull

impl Encode<'_, MySql> for &[u8]

fn encode_by_ref(&self, buf: &mut Vec<u8>) -> IsNull

impl Encode<'_, MySql> for Vec<u8>

fn encode_by_ref(&self, buf: &mut Vec<u8>) -> IsNull

impl Encode<'_, MySql> for f32

fn encode_by_ref(&self, buf: &mut Vec<u8>) -> IsNull

impl Encode<'_, MySql> for f64

fn encode_by_ref(&self, buf: &mut Vec<u8>) -> IsNull

impl Encode<'_, MySql> for i8

fn encode_by_ref(&self, buf: &mut Vec<u8>) -> IsNull

impl Encode<'_, MySql> for i16

fn encode_by_ref(&self, buf: &mut Vec<u8>) -> IsNull

impl Encode<'_, MySql> for i32

fn encode_by_ref(&self, buf: &mut Vec<u8>) -> IsNull

impl Encode<'_, MySql> for i64

fn encode_by_ref(&self, buf: &mut Vec<u8>) -> IsNull

impl Encode<'_, MySql> for &str

fn encode_by_ref(&self, buf: &mut Vec<u8>) -> IsNull

impl Encode<'_, MySql> for String

fn encode_by_ref(&self, buf: &mut Vec<u8>) -> IsNull

impl Encode<'_, MySql> for u8

fn encode_by_ref(&self, buf: &mut Vec<u8>) -> IsNull

impl Encode<'_, MySql> for u16

fn encode_by_ref(&self, buf: &mut Vec<u8>) -> IsNull

impl Encode<'_, MySql> for u32

fn encode_by_ref(&self, buf: &mut Vec<u8>) -> IsNull

impl Encode<'_, MySql> for u64

fn encode_by_ref(&self, buf: &mut Vec<u8>) -> IsNull

impl Encode<'_, MySql> for BigDecimal

fn encode_by_ref(&self, buf: &mut Vec<u8>) -> IsNull

impl Encode<'_, MySql> for Decimal

fn encode_by_ref(&self, buf: &mut Vec<u8>) -> IsNull

impl Encode<'_, MySql> for DateTime<Utc>

fn encode_by_ref(&self, buf: &mut Vec<u8>) -> IsNull

impl Encode<'_, MySql> for NaiveTime

fn encode_by_ref(&self, buf: &mut Vec<u8>) -> IsNull

fn size_hint(&self) -> usize

impl Encode<'_, MySql> for NaiveDate

fn encode_by_ref(&self, buf: &mut Vec<u8>) -> IsNull

fn size_hint(&self) -> usize

impl Encode<'_, MySql> for NaiveDateTime

fn encode_by_ref(&self, buf: &mut Vec<u8>) -> IsNull

fn size_hint(&self) -> usize

impl Encode<'_, MySql> for OffsetDateTime

fn encode_by_ref(&self, buf: &mut Vec<u8>) -> IsNull

impl Encode<'_, MySql> for Time

fn encode_by_ref(&self, buf: &mut Vec<u8>) -> IsNull

fn size_hint(&self) -> usize

impl Encode<'_, MySql> for Date

fn encode_by_ref(&self, buf: &mut Vec<u8>) -> IsNull

fn size_hint(&self) -> usize

impl Encode<'_, MySql> for PrimitiveDateTime

fn encode_by_ref(&self, buf: &mut Vec<u8>) -> IsNull

fn size_hint(&self) -> usize

impl Encode<'_, MySql> for Uuid

fn encode_by_ref(&self, buf: &mut Vec<u8>) -> IsNull

impl Encode<'_, MySql> for Hyphenated

fn encode_by_ref(&self, buf: &mut Vec<u8>) -> IsNull

impl<'q, T> Encode<'q, MySql> for Option<T> where
    T: Encode<'q, MySql> + Type<MySql> + 'q, 

fn produces(&self) -> Option<<MySql as Database>::TypeInfo>

fn encode(self, buf: &mut <MySql as HasArguments<'q>>::ArgumentBuffer) -> IsNull

fn encode_by_ref(
    &self,
    buf: &mut <MySql as HasArguments<'q>>::ArgumentBuffer
) -> IsNull

fn size_hint(&self) -> usize

impl Encode<'_, Mssql> for bool

fn encode_by_ref(&self, buf: &mut Vec<u8>) -> IsNull

impl Encode<'_, Mssql> for f32

fn encode_by_ref(&self, buf: &mut Vec<u8>) -> IsNull

impl Encode<'_, Mssql> for f64

fn encode_by_ref(&self, buf: &mut Vec<u8>) -> IsNull

impl Encode<'_, Mssql> for i8

fn encode_by_ref(&self, buf: &mut Vec<u8>) -> IsNull

impl Encode<'_, Mssql> for i16

fn encode_by_ref(&self, buf: &mut Vec<u8>) -> IsNull

impl Encode<'_, Mssql> for i32

fn encode_by_ref(&self, buf: &mut Vec<u8>) -> IsNull

impl Encode<'_, Mssql> for i64

fn encode_by_ref(&self, buf: &mut Vec<u8>) -> IsNull

impl Encode<'_, Mssql> for &str

fn produces(&self) -> Option<MssqlTypeInfo>

fn encode_by_ref(&self, buf: &mut Vec<u8>) -> IsNull

impl Encode<'_, Mssql> for String

fn produces(&self) -> Option<MssqlTypeInfo>

fn encode_by_ref(&self, buf: &mut Vec<u8>) -> IsNull

impl<'q, T: 'q + Encode<'q, Mssql>> Encode<'q, Mssql> for Option<T>

fn encode(self, buf: &mut Vec<u8>) -> IsNull

fn encode_by_ref(&self, buf: &mut Vec<u8>) -> IsNull

fn produces(&self) -> Option<MssqlTypeInfo>

fn size_hint(&self) -> usize

Implementors

impl Encode<'_, Postgres> for PgInterval

fn encode_by_ref(&self, buf: &mut PgArgumentBuffer) -> IsNull

fn size_hint(&self) -> usize

impl Encode<'_, Postgres> for PgMoney

fn encode_by_ref(&self, buf: &mut PgArgumentBuffer) -> IsNull

impl Encode<'_, Postgres> for PgTimeTz<NaiveTime, FixedOffset>

fn encode_by_ref(&self, buf: &mut PgArgumentBuffer) -> IsNull

fn size_hint(&self) -> usize

impl Encode<'_, Postgres> for PgTimeTz<Time, UtcOffset>

fn encode_by_ref(&self, buf: &mut PgArgumentBuffer) -> IsNull

fn size_hint(&self) -> usize

impl<'q, T> Encode<'q, Postgres> for PgRange<T> where
    T: Encode<'q, Postgres>, 

fn encode_by_ref(&self, buf: &mut PgArgumentBuffer) -> IsNull

impl<'q, T> Encode<'q, Postgres> for Json<T> where
    T: Serialize, 

fn encode_by_ref(&self, buf: &mut PgArgumentBuffer) -> IsNull

impl<T> Encode<'_, MySql> for Json<T> where
    T: Serialize, 

fn encode_by_ref(&self, buf: &mut Vec<u8>) -> IsNull

impl<T> Encode<'_, Sqlite> for Json<T> where
    T: Serialize, 

fn encode_by_ref(&self, buf: &mut Vec<SqliteArgumentValue<'_>>) -> IsNull