Enum Value 

pub enum Value {
    Null,
    Integer(i64),
    Real(f64),
    Text(String),
    Blob(Vec<u8>),
}

Owning dynamic type value. Value’s type is typically dictated by SQLite (not by the caller).

See ValueRef for a non-owning dynamic type value.

Variants

Null

The value is a NULL value.

Integer(i64)

The value is a signed integer.

Real(f64)

The value is a floating point number.

Text(String)

The value is a text string.

Blob(Vec<u8>)

The value is a blob of data

Implementations

impl Value

pub fn data_type(&self) -> Type

Returns SQLite fundamental datatype.

Trait Implementations

impl AsSqlTy for Value

const SQL_TY: SqlTy

The SQL type corresponding to this type.

type Borrowed<'p> = ValueRef<'p>

The borrowed counterpart of this type (may be Self, e.g. for trivially-copiable types such as integers and floats). This is used e.g. for constructing the Table::PrimaryKey associated type, which in turn serves as the input type of helper queries such as SelectByKey and DeleteByKey.

fn format_check_constraint( column: &dyn Display, formatter: &mut Formatter<'_>, ) -> Result

If the domain of this type requires a CHECK constraint, this method should write out the relevant criteria. The column name will be given as the column argument. If the body of this function doesn’t write anything to the formatter, no CHECK constraint is going to be emitted.

impl Clone for Value

fn clone(&self) -> Value

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Value

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

Formats the value using the given formatter.

impl<'a> From<&'a Value> for ValueRef<'a>

fn from(value: &'a Value) -> ValueRef<'a>

Converts to this type from the input type.

impl From<Null> for Value

fn from(_: Null) -> Value

Converts to this type from the input type.

impl<T> From<Option<T>> for Value

where T: Into<Value>,

fn from(v: Option<T>) -> Value

Converts to this type from the input type.

impl From<String> for Value

fn from(s: String) -> Value

Converts to this type from the input type.

impl From<ValueRef<'_>> for Value

fn from(borrowed: ValueRef<'_>) -> Value

Converts to this type from the input type.

impl From<Vec<u8>> for Value

fn from(v: Vec<u8>) -> Value

Converts to this type from the input type.

impl From<bool> for Value

fn from(i: bool) -> Value

Converts to this type from the input type.

impl From<f32> for Value

fn from(f: f32) -> Value

Converts to this type from the input type.

impl From<f64> for Value

fn from(f: f64) -> Value

Converts to this type from the input type.

impl From<i16> for Value

fn from(i: i16) -> Value

Converts to this type from the input type.

impl From<i32> for Value

fn from(i: i32) -> Value

Converts to this type from the input type.

impl From<i64> for Value

fn from(i: i64) -> Value

Converts to this type from the input type.

impl From<i8> for Value

fn from(i: i8) -> Value

Converts to this type from the input type.

impl From<isize> for Value

fn from(i: isize) -> Value

Converts to this type from the input type.

impl From<u16> for Value

fn from(i: u16) -> Value

Converts to this type from the input type.

impl From<u32> for Value

fn from(i: u32) -> Value

Converts to this type from the input type.

impl From<u8> for Value

fn from(i: u8) -> Value

Converts to this type from the input type.

impl FromSql for Value

fn column_result(value: ValueRef<'_>) -> Result<Value, FromSqlError>

Converts SQLite value into Rust value.

impl Param for Value

const PREFIX: ParamPrefix = ParamPrefix::Question

Primitives are bound as positional parameters, hence the prefix is ‘?’

fn bind(&self, statement: &mut Statement<'_>) -> Result<()>

Binds the primitive or the field(s) of a tuple to a raw rusqlite::Statement.

impl PartialEq for Value

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

Tests for self and other values to be equal, and is used by ==.

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl ResultRecord for Value

fn from_row(row: &Row<'_>) -> Result<Self>

Convert a dynamically-typed relational tuple to a statically-typed record.

impl ToSql for Value

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

Converts Rust value to SQLite value

impl StructuralPartialEq for Value