Trait Encode

pub trait Encode<'q, DB>
where
    DB: Database,
{
    // Required method
    fn encode_by_ref(
        &self,
        buf: &mut <DB as Database>::ArgumentBuffer<'q>,
    ) -> Result<IsNull, Box<dyn Error + Send + Sync>>;

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

Encode a single value to be sent to the database.

Required Methods

fn encode_by_ref( &self, buf: &mut <DB as Database>::ArgumentBuffer<'q>, ) -> Result<IsNull, Box<dyn Error + Send + Sync>>

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 Database>::ArgumentBuffer<'q>, ) -> Result<IsNull, Box<dyn Error + Send + Sync>>

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<'_, Sqlite> for Box<str>

fn encode( self, args: &mut Vec<SqliteArgumentValue<'_>>, ) -> Result<IsNull, Box<dyn Error + Send + Sync>>

fn encode_by_ref( &self, args: &mut Vec<SqliteArgumentValue<'_>>, ) -> Result<IsNull, Box<dyn Error + Send + Sync>>

impl Encode<'_, Sqlite> for Box<[u8]>

fn encode( self, args: &mut Vec<SqliteArgumentValue<'_>>, ) -> Result<IsNull, Box<dyn Error + Send + Sync>>

fn encode_by_ref( &self, args: &mut Vec<SqliteArgumentValue<'_>>, ) -> Result<IsNull, Box<dyn Error + Send + Sync>>

impl<'q> Encode<'q, D1> for &'q str

fn encode_by_ref( &self, buf: &mut <D1 as Database>::ArgumentBuffer<'q>, ) -> Result<IsNull, Box<dyn Error + Send + Sync>>

impl<'q> Encode<'q, D1> for &'q [u8]

fn encode_by_ref( &self, buf: &mut <D1 as Database>::ArgumentBuffer<'q>, ) -> Result<IsNull, Box<dyn Error + Send + Sync>>

impl<'q> Encode<'q, D1> for Cow<'_, str>

fn encode_by_ref( &self, buf: &mut <D1 as Database>::ArgumentBuffer<'q>, ) -> Result<IsNull, Box<dyn Error + Send + Sync>>

impl<'q> Encode<'q, D1> for bool

fn encode_by_ref( &self, buf: &mut <D1 as Database>::ArgumentBuffer<'q>, ) -> Result<IsNull, Box<dyn Error + Send + Sync>>

impl<'q> Encode<'q, D1> for f32

fn encode_by_ref( &self, buf: &mut <D1 as Database>::ArgumentBuffer<'q>, ) -> Result<IsNull, Box<dyn Error + Send + Sync>>

impl<'q> Encode<'q, D1> for f64

fn encode_by_ref( &self, buf: &mut <D1 as Database>::ArgumentBuffer<'q>, ) -> Result<IsNull, Box<dyn Error + Send + Sync>>

impl<'q> Encode<'q, D1> for i8

fn encode_by_ref( &self, buf: &mut <D1 as Database>::ArgumentBuffer<'q>, ) -> Result<IsNull, Box<dyn Error + Send + Sync>>

impl<'q> Encode<'q, D1> for i16

fn encode_by_ref( &self, buf: &mut <D1 as Database>::ArgumentBuffer<'q>, ) -> Result<IsNull, Box<dyn Error + Send + Sync>>

impl<'q> Encode<'q, D1> for i32

fn encode_by_ref( &self, buf: &mut <D1 as Database>::ArgumentBuffer<'q>, ) -> Result<IsNull, Box<dyn Error + Send + Sync>>

impl<'q> Encode<'q, D1> for i64

fn encode_by_ref( &self, buf: &mut <D1 as Database>::ArgumentBuffer<'q>, ) -> Result<IsNull, Box<dyn Error + Send + Sync>>

impl<'q> Encode<'q, D1> for isize

fn encode_by_ref( &self, buf: &mut <D1 as Database>::ArgumentBuffer<'q>, ) -> Result<IsNull, Box<dyn Error + Send + Sync>>

impl<'q> Encode<'q, D1> for u8

fn encode_by_ref( &self, buf: &mut <D1 as Database>::ArgumentBuffer<'q>, ) -> Result<IsNull, Box<dyn Error + Send + Sync>>

impl<'q> Encode<'q, D1> for u16

fn encode_by_ref( &self, buf: &mut <D1 as Database>::ArgumentBuffer<'q>, ) -> Result<IsNull, Box<dyn Error + Send + Sync>>

impl<'q> Encode<'q, D1> for u32

fn encode_by_ref( &self, buf: &mut <D1 as Database>::ArgumentBuffer<'q>, ) -> Result<IsNull, Box<dyn Error + Send + Sync>>

impl<'q> Encode<'q, D1> for u64

fn encode_by_ref( &self, buf: &mut <D1 as Database>::ArgumentBuffer<'q>, ) -> Result<IsNull, Box<dyn Error + Send + Sync>>

impl<'q> Encode<'q, D1> for usize

fn encode_by_ref( &self, buf: &mut <D1 as Database>::ArgumentBuffer<'q>, ) -> Result<IsNull, Box<dyn Error + Send + Sync>>

impl<'q> Encode<'q, D1> for Box<str>

fn encode_by_ref( &self, buf: &mut <D1 as Database>::ArgumentBuffer<'q>, ) -> Result<IsNull, Box<dyn Error + Send + Sync>>

impl<'q> Encode<'q, D1> for Box<[u8]>

fn encode_by_ref( &self, buf: &mut <D1 as Database>::ArgumentBuffer<'q>, ) -> Result<IsNull, Box<dyn Error + Send + Sync>>

impl<'q> Encode<'q, D1> for String

fn encode_by_ref( &self, buf: &mut <D1 as Database>::ArgumentBuffer<'q>, ) -> Result<IsNull, Box<dyn Error + Send + Sync>>

impl<'q> Encode<'q, D1> for Vec<u8>

fn encode_by_ref( &self, buf: &mut <D1 as Database>::ArgumentBuffer<'q>, ) -> Result<IsNull, Box<dyn Error + Send + Sync>>

impl<'q> Encode<'q, D1> for Decimal

fn encode_by_ref( &self, buf: &mut <D1 as Database>::ArgumentBuffer<'q>, ) -> Result<IsNull, Box<dyn Error + Send + Sync>>

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

fn encode_by_ref( &self, args: &mut Vec<SqliteArgumentValue<'q>>, ) -> Result<IsNull, Box<dyn Error + Send + Sync>>

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

fn encode_by_ref( &self, args: &mut Vec<SqliteArgumentValue<'q>>, ) -> Result<IsNull, Box<dyn Error + Send + Sync>>

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

fn encode( self, args: &mut Vec<SqliteArgumentValue<'q>>, ) -> Result<IsNull, Box<dyn Error + Send + Sync>>

fn encode_by_ref( &self, args: &mut Vec<SqliteArgumentValue<'q>>, ) -> Result<IsNull, Box<dyn Error + Send + Sync>>

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

fn encode_by_ref( &self, args: &mut Vec<SqliteArgumentValue<'q>>, ) -> Result<IsNull, Box<dyn Error + Send + Sync>>

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

fn encode_by_ref( &self, args: &mut Vec<SqliteArgumentValue<'q>>, ) -> Result<IsNull, Box<dyn Error + Send + Sync>>

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

fn encode_by_ref( &self, args: &mut Vec<SqliteArgumentValue<'q>>, ) -> Result<IsNull, Box<dyn Error + Send + Sync>>

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

fn encode_by_ref( &self, args: &mut Vec<SqliteArgumentValue<'q>>, ) -> Result<IsNull, Box<dyn Error + Send + Sync>>

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

fn encode_by_ref( &self, args: &mut Vec<SqliteArgumentValue<'q>>, ) -> Result<IsNull, Box<dyn Error + Send + Sync>>

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

fn encode_by_ref( &self, args: &mut Vec<SqliteArgumentValue<'q>>, ) -> Result<IsNull, Box<dyn Error + Send + Sync>>

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

fn encode_by_ref( &self, args: &mut Vec<SqliteArgumentValue<'q>>, ) -> Result<IsNull, Box<dyn Error + Send + Sync>>

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

fn encode_by_ref( &self, args: &mut Vec<SqliteArgumentValue<'q>>, ) -> Result<IsNull, Box<dyn Error + Send + Sync>>

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

fn encode_by_ref( &self, args: &mut Vec<SqliteArgumentValue<'q>>, ) -> Result<IsNull, Box<dyn Error + Send + Sync>>

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

fn encode_by_ref( &self, args: &mut Vec<SqliteArgumentValue<'q>>, ) -> Result<IsNull, Box<dyn Error + Send + Sync>>

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

fn encode( self, args: &mut Vec<SqliteArgumentValue<'q>>, ) -> Result<IsNull, Box<dyn Error + Send + Sync>>

fn encode_by_ref( &self, args: &mut Vec<SqliteArgumentValue<'q>>, ) -> Result<IsNull, Box<dyn Error + Send + Sync>>

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

fn encode( self, args: &mut Vec<SqliteArgumentValue<'q>>, ) -> Result<IsNull, Box<dyn Error + Send + Sync>>

fn encode_by_ref( &self, args: &mut Vec<SqliteArgumentValue<'q>>, ) -> Result<IsNull, Box<dyn Error + Send + Sync>>

impl<'q, DB> Encode<'q, DB> for NonZero<i8>

where DB: Database, i8: Encode<'q, DB>,

fn encode_by_ref( &self, buf: &mut <DB as Database>::ArgumentBuffer<'q>, ) -> Result<IsNull, Box<dyn Error + Send + Sync>>

fn encode( self, buf: &mut <DB as Database>::ArgumentBuffer<'q>, ) -> Result<IsNull, Box<dyn Error + Send + Sync>>

where NonZero<i8>: Sized,

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

impl<'q, DB> Encode<'q, DB> for NonZero<i16>

where DB: Database, i16: Encode<'q, DB>,

fn encode_by_ref( &self, buf: &mut <DB as Database>::ArgumentBuffer<'q>, ) -> Result<IsNull, Box<dyn Error + Send + Sync>>

fn encode( self, buf: &mut <DB as Database>::ArgumentBuffer<'q>, ) -> Result<IsNull, Box<dyn Error + Send + Sync>>

where NonZero<i16>: Sized,

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

impl<'q, DB> Encode<'q, DB> for NonZero<i32>

where DB: Database, i32: Encode<'q, DB>,

fn encode_by_ref( &self, buf: &mut <DB as Database>::ArgumentBuffer<'q>, ) -> Result<IsNull, Box<dyn Error + Send + Sync>>

fn encode( self, buf: &mut <DB as Database>::ArgumentBuffer<'q>, ) -> Result<IsNull, Box<dyn Error + Send + Sync>>

where NonZero<i32>: Sized,

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

impl<'q, DB> Encode<'q, DB> for NonZero<i64>

where DB: Database, i64: Encode<'q, DB>,

fn encode_by_ref( &self, buf: &mut <DB as Database>::ArgumentBuffer<'q>, ) -> Result<IsNull, Box<dyn Error + Send + Sync>>

fn encode( self, buf: &mut <DB as Database>::ArgumentBuffer<'q>, ) -> Result<IsNull, Box<dyn Error + Send + Sync>>

where NonZero<i64>: Sized,

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

impl<'q, DB> Encode<'q, DB> for NonZero<u8>

where DB: Database, u8: Encode<'q, DB>,

fn encode_by_ref( &self, buf: &mut <DB as Database>::ArgumentBuffer<'q>, ) -> Result<IsNull, Box<dyn Error + Send + Sync>>

fn encode( self, buf: &mut <DB as Database>::ArgumentBuffer<'q>, ) -> Result<IsNull, Box<dyn Error + Send + Sync>>

where NonZero<u8>: Sized,

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

impl<'q, DB> Encode<'q, DB> for NonZero<u16>

where DB: Database, u16: Encode<'q, DB>,

fn encode_by_ref( &self, buf: &mut <DB as Database>::ArgumentBuffer<'q>, ) -> Result<IsNull, Box<dyn Error + Send + Sync>>

fn encode( self, buf: &mut <DB as Database>::ArgumentBuffer<'q>, ) -> Result<IsNull, Box<dyn Error + Send + Sync>>

where NonZero<u16>: Sized,

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

impl<'q, DB> Encode<'q, DB> for NonZero<u32>

where DB: Database, u32: Encode<'q, DB>,

fn encode_by_ref( &self, buf: &mut <DB as Database>::ArgumentBuffer<'q>, ) -> Result<IsNull, Box<dyn Error + Send + Sync>>

fn encode( self, buf: &mut <DB as Database>::ArgumentBuffer<'q>, ) -> Result<IsNull, Box<dyn Error + Send + Sync>>

where NonZero<u32>: Sized,

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

impl<'q, DB> Encode<'q, DB> for NonZero<u64>

where DB: Database, u64: Encode<'q, DB>,

fn encode_by_ref( &self, buf: &mut <DB as Database>::ArgumentBuffer<'q>, ) -> Result<IsNull, Box<dyn Error + Send + Sync>>

fn encode( self, buf: &mut <DB as Database>::ArgumentBuffer<'q>, ) -> Result<IsNull, Box<dyn Error + Send + Sync>>

where NonZero<u64>: Sized,

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

impl<'q, E> Encode<'q, D1> for Option<E>

where E: Encode<'q, D1>,

Type, Encode, Decode implementations for specific types

fn encode_by_ref( &self, buf: &mut <D1 as Database>::ArgumentBuffer<'q>, ) -> Result<IsNull, Box<dyn Error + Send + Sync>>

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 Database>::ArgumentBuffer<'q>, ) -> Result<IsNull, Box<dyn Error + Send + Sync>>

fn encode_by_ref( &self, buf: &mut <Sqlite as Database>::ArgumentBuffer<'q>, ) -> Result<IsNull, Box<dyn Error + Send + Sync>>

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 Database>::ArgumentBuffer<'q>, ) -> Result<IsNull, Box<dyn Error + Send + Sync>>

fn encode_by_ref( &self, buf: &mut <DB as Database>::ArgumentBuffer<'q>, ) -> Result<IsNull, Box<dyn Error + Send + Sync>>

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

fn size_hint(&self) -> usize

Implementors

impl Encode<'_, D1> for NaiveDate

impl Encode<'_, D1> for NaiveDateTime

impl Encode<'_, D1> for NaiveTime

impl<'q> Encode<'q, D1> for Uuid

impl<'q> Encode<'q, D1> for Hyphenated

impl<'q> Encode<'q, D1> for Simple

impl<'q, DB> Encode<'q, DB> for Value

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

impl<'q, T> Encode<'q, D1> for Json<T>

where T: Serialize,

impl<'q, T> Encode<'q, D1> for Text<T>

where T: Display,

impl<'q, T> Encode<'q, Sqlite> for Text<T>

where T: Display,

impl<Tz> Encode<'_, D1> for DateTime<Tz>

where Tz: TimeZone,