Trait Encode

pub trait Encode<'q, DB>where
    DB: Database,{
    // Required method
    fn encode_by_ref(
        &self,
        buf: &mut <DB as HasArguments<'q>>::ArgumentBuffer,
    ) -> IsNull;

    // Provided methods
    fn encode(
        self,
        buf: &mut <DB as HasArguments<'q>>::ArgumentBuffer,
    ) -> IsNull
       where Self: Sized { ... }
    fn produces(&self) -> Option<<DB as Database>::TypeInfo> { ... }
    fn size_hint(&self) -> usize { ... }
}

Expand description

Encode a single value to be sent to the database.

Required Methods§

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§

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 as Database>::TypeInfo>

fn size_hint(&self) -> usize

Implementations on Foreign Types§

impl Encode<'_, Mssql> for &str

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

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

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

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

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

impl Encode<'_, Mssql> for Cow<'_, str>

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

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

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 u8

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

impl Encode<'_, Mssql> for u16

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

impl Encode<'_, Mssql> for u32

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

impl Encode<'_, Mssql> for u64

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 Encode<'_, Mssql> for Vec<u8>

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

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 &[u8]

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

impl Encode<'_, MySql> for Cow<'_, str>

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

impl Encode<'_, MySql> for bool

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 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 String

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<'_, Postgres> for &str

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 Cow<'_, str>

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 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 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 u16

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 u64

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 Vec<u8>

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 TimeDelta

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<'db> Encode<'db, Postgres> for IpAddr
where IpNetwork: Encode<'db, Postgres>,

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

fn size_hint(&self) -> usize

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 &'q [u8]
where &'q [u8]: AnyEncode<'q>,

fn encode_by_ref(&self, buf: &mut AnyArgumentBuffer<'q>) -> 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 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 i16
where i16: 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 u16
where u16: AnyEncode<'q>,

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

impl<'q> Encode<'q, Any> for u32
where u32: AnyEncode<'q>,

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

impl<'q> Encode<'q, Any> for u64
where u64: 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> Encode<'q, Any> for Vec<u8>
where Vec<u8>: AnyEncode<'q>,

fn encode_by_ref(&self, buf: &mut AnyArgumentBuffer<'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 &'q [u8]

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

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

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 bool

fn encode_by_ref(&self, args: &mut Vec<SqliteArgumentValue<'q>>) -> 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 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 u64

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 Vec<u8>

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

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

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

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

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

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

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

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

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

fn encode_by_ref(&self, buf: &mut PgArgumentBuffer) -> 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<'q, T, DB> Encode<'q, DB> for &T
where DB: Database, 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 as Database>::TypeInfo>

fn size_hint(&self) -> usize

impl<'q, T, const N: usize> Encode<'q, Postgres> for [T; N]
where &'a [T]: for<'a> Encode<'q, Postgres>, T: Encode<'q, Postgres>,

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

impl<'r> Encode<'_, Mssql> for Cow<'r, [u8]>

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

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

impl<const N: usize> Encode<'_, Postgres> for [u8; N]

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

Implementors§

impl Encode<'_, Mssql> for NaiveDate

Encodes Date objects for transfer over the wire

impl Encode<'_, Mssql> for NaiveDateTime

Encodes DateTime objects for transfer over the wire

impl Encode<'_, Mssql> for NaiveTime

Encodes Time objects for transfer over the wire

impl Encode<'_, Mssql> for BigDecimal

impl Encode<'_, Mssql> for Decimal

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

Note: assumes the connection’s time_zone is set to +00:00 (UTC).

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

Note: assumes the connection’s time_zone is set to +00:00 (UTC).

impl Encode<'_, MySql> for NaiveDate

impl Encode<'_, MySql> for NaiveDateTime

impl Encode<'_, MySql> for NaiveTime

impl Encode<'_, MySql> for BigDecimal

impl Encode<'_, MySql> for Decimal

impl Encode<'_, MySql> for Uuid

impl Encode<'_, MySql> for Date

impl Encode<'_, MySql> for OffsetDateTime

impl Encode<'_, MySql> for PrimitiveDateTime

impl Encode<'_, MySql> for Time

impl Encode<'_, MySql> for Hyphenated

impl Encode<'_, Postgres> for IpNetwork

impl Encode<'_, Postgres> for sqlx_oldapi::postgres::types::Oid

impl Encode<'_, Postgres> for PgInterval

impl Encode<'_, Postgres> for PgLQuery

impl Encode<'_, Postgres> for PgLTree

impl Encode<'_, Postgres> for PgMoney

impl Encode<'_, Postgres> for PgTimeTz

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

impl Encode<'_, Postgres> for NaiveDate

impl Encode<'_, Postgres> for NaiveDateTime

impl Encode<'_, Postgres> for NaiveTime

impl Encode<'_, Postgres> for MacAddress

impl Encode<'_, Postgres> for BigDecimal

§Panics

If this BigDecimal cannot be represented by PgNumeric.

impl Encode<'_, Postgres> for BitVec

impl Encode<'_, Postgres> for Decimal

§Panics

If this Decimal cannot be represented by PgNumeric.

impl Encode<'_, Postgres> for Uuid

impl Encode<'_, Postgres> for Date

impl Encode<'_, Postgres> for OffsetDateTime

impl Encode<'_, Postgres> for PrimitiveDateTime

impl Encode<'_, Postgres> for Time

impl Encode<'_, Sqlite> for NaiveDate

impl Encode<'_, Sqlite> for NaiveDateTime

impl Encode<'_, Sqlite> for NaiveTime

impl Encode<'_, Sqlite> for BigDecimal

impl Encode<'_, Sqlite> for Decimal

impl Encode<'_, Sqlite> for Date

impl Encode<'_, Sqlite> for OffsetDateTime

impl Encode<'_, Sqlite> for PrimitiveDateTime

impl Encode<'_, Sqlite> for Time

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

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

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

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

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

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

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

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

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

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

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

impl<'q, DB> Encode<'q, DB> for &'q BStr
where DB: Database, &'q [u8]: Encode<'q, DB>,

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

impl<'q, DB> Encode<'q, DB> for BString
where DB: Database, Vec<u8>: Encode<'q, DB>,

impl<'q, DB> Encode<'q, DB> for sqlx_oldapi::types::git2::Oid
where DB: Database, Vec<u8>: Encode<'q, DB>,

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

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

impl<T> Encode<'_, Mssql> for DateTime<T>
where T: TimeZone,

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

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

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

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

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