Enum butane::SqlVal

pub enum SqlVal {
    Null,
    Bool(bool),
    Int(i32),
    BigInt(i64),
    Real(f64),
    Text(String),
    Blob(Vec<u8, Global>),
    Timestamp(NaiveDateTime),
    Custom(Box<SqlValCustom, Global>),
}

A database value.

For conversion between SqlVal and other types, see FromSql and ToSql.

Variants

Null

Bool(bool)

Int(i32)

BigInt(i64)

Real(f64)

Text(String)

Blob(Vec<u8, Global>)

Timestamp(NaiveDateTime)

Custom(Box<SqlValCustom, Global>)

Implementations

impl SqlVal

pub fn as_ref(&self) -> SqlValRef<'_>

pub fn bool(&self) -> Result<bool, Error>

pub fn integer(&self) -> Result<i32, Error>

pub fn bigint(&self) -> Result<i64, Error>

pub fn real(&self) -> Result<f64, Error>

pub fn text(&self) -> Result<&str, Error>

pub fn owned_text(self) -> Result<String, Error>

pub fn blob(&self) -> Result<&[u8], Error>

pub fn owned_blob(self) -> Result<Vec<u8, Global>, Error>

pub fn is_compatible(&self, t: &SqlType, null_allowed: bool) -> bool

Tests if this sqlval is compatible with the given SqlType. There are no implicit type conversions (i.e. if this is a SqlVal::Bool, it is only compatible with SqlType::Bool, not with SqlType::Int, even though an int contains enough information to encode a bool.

pub fn sqltype(&self) -> Option<SqlType>

Trait Implementations

impl Clone for SqlVal

pub fn clone(&self) -> SqlVal

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for SqlVal

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for SqlVal

pub fn deserialize<__D>(
    __deserializer: __D
) -> Result<SqlVal, <__D as Deserializer<'de>>::Error> where
    __D: Deserializer<'de>, 

Deserialize this value from the given Serde deserializer.

impl Display for SqlVal

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

Formats the value using the given formatter.

impl<'a> From<&'a SqlVal> for SqlValRef<'a>

pub fn from(val: &'a SqlVal) -> SqlValRef<'a>

Performs the conversion.

impl<'_> From<SqlValRef<'_>> for SqlVal

pub fn from(vref: SqlValRef<'_>) -> SqlVal

Performs the conversion.

impl<T> From<T> for SqlVal where
    T: ToSql, 

pub fn from(val: T) -> SqlVal

Performs the conversion.

impl PartialEq<SqlVal> for SqlVal

pub fn eq(&self, other: &SqlVal) -> bool

This method tests for self and other values to be equal, and is used by ==.

pub fn ne(&self, other: &SqlVal) -> bool

This method tests for !=.

impl Serialize for SqlVal

pub fn serialize<__S>(
    &self,
    __serializer: __S
) -> Result<<__S as Serializer>::Ok, <__S as Serializer>::Error> where
    __S: Serializer, 

Serialize this value into the given Serde serializer.

impl ToSql for SqlVal

pub fn to_sql(
    &self,
    ty: &Type,
    out: &mut BytesMut
) -> Result<IsNull, Box<dyn Error + Sync + Send + 'static, Global>>

Converts the value of self into the binary format of the specified Postgres Type, appending it to out.

pub fn accepts(ty: &Type) -> bool

Determines if a value of this type can be converted to the specified Postgres Type.

pub fn to_sql_checked(
    &self,
    ty: &Type,
    out: &mut BytesMut
) -> Result<IsNull, Box<dyn Error + Sync + Send + 'static, Global>>

An adaptor method used internally by Rust-Postgres.

impl ToSql for SqlVal

pub fn to_sql(&self) -> Result<ToSqlOutput<'_>, Error>

Converts Rust value to SQLite value

impl StructuralPartialEq for SqlVal