Enum Value

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pub enum Value {
    Bit(bool),
    Tinyint(i8),
    Smallint(i16),
    Integer(i32),
    Bigint(i64),
    Float(f32),
    Double(f64),
    String(String),
    Timestamp(SqlTimestamp),
    Date(SqlDate),
    Time(SqlSsTime2),
}
Expand description

Representation of every supported column value.

Variants§

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Bit(bool)

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Tinyint(i8)

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Smallint(i16)

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Integer(i32)

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Bigint(i64)

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Float(f32)

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Double(f64)

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String(String)

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Timestamp(SqlTimestamp)

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Date(SqlDate)

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Time(SqlSsTime2)

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impl Value

Note that as_ methods return reference so values can be parameter-bound to a query. Use to_ or into_ methods to get values cheaply.

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pub fn as_bool(&self) -> Option<&bool>

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pub fn to_bool(&self) -> Option<bool>

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pub fn as_i8(&self) -> Option<&i8>

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pub fn to_i8(&self) -> Option<i8>

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pub fn as_i16(&self) -> Option<&i16>

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pub fn to_i16(&self) -> Option<i16>

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pub fn as_i32(&self) -> Option<&i32>

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pub fn to_i32(&self) -> Option<i32>

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pub fn as_i64(&self) -> Option<&i64>

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pub fn to_i64(&self) -> Option<i64>

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pub fn as_f32(&self) -> Option<&f32>

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pub fn to_f32(&self) -> Option<f32>

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pub fn as_f64(&self) -> Option<&f64>

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pub fn to_f64(&self) -> Option<f64>

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pub fn as_str(&self) -> Option<&str>

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pub fn into_string(self) -> Result<String, Value>

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pub fn as_timestamp(&self) -> Option<&SqlTimestamp>

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pub fn into_timestamp(self) -> Result<SqlTimestamp, Value>

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pub fn to_naive_date_time(&self) -> Option<NaiveDateTime>

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pub fn as_date(&self) -> Option<&SqlDate>

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pub fn into_date(self) -> Result<SqlDate, Value>

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pub fn to_naive_date(&self) -> Option<NaiveDate>

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pub fn as_time(&self) -> Option<&SqlSsTime2>

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pub fn into_time(self) -> Result<SqlSsTime2, Value>

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pub fn to_naive_time(&self) -> Option<NaiveTime>

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pub fn datum_type(&self) -> DatumType

Type of this value.

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impl Clone for Value

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fn clone(&self) -> Value

Returns a duplicate of the value. Read more
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const fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl Debug for Value

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

Formats the value using the given formatter. Read more
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impl Display for Value

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

Formats the value using the given formatter. Read more
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impl From<NaiveDate> for Value

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fn from(value: NaiveDate) -> Value

Converts to this type from the input type.
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impl From<NaiveDateTime> for Value

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fn from(value: NaiveDateTime) -> Value

Converts to this type from the input type.
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impl From<NaiveTime> for Value

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fn from(value: NaiveTime) -> Value

Converts to this type from the input type.
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impl From<SQL_DATE_STRUCT> for Value

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fn from(value: SqlDate) -> Value

Converts to this type from the input type.
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impl From<SQL_SS_TIME2_STRUCT> for Value

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fn from(value: SqlSsTime2) -> Value

Converts to this type from the input type.
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impl From<SQL_TIMESTAMP_STRUCT> for Value

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fn from(value: SqlTimestamp) -> Value

Converts to this type from the input type.
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impl From<SQL_TIME_STRUCT> for Value

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fn from(value: SqlTime) -> Value

Converts to this type from the input type.
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impl From<String> for Value

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fn from(value: String) -> Value

Converts to this type from the input type.
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impl From<UnixTimestamp> for Value

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fn from(value: UnixTimestamp) -> Value

Converts to this type from the input type.
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impl From<bool> for Value

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fn from(value: bool) -> Value

Converts to this type from the input type.
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impl From<f32> for Value

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fn from(value: f32) -> Value

Converts to this type from the input type.
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impl From<f64> for Value

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fn from(value: f64) -> Value

Converts to this type from the input type.
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impl From<i16> for Value

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fn from(value: i16) -> Value

Converts to this type from the input type.
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impl From<i32> for Value

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fn from(value: i32) -> Value

Converts to this type from the input type.
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impl From<i64> for Value

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fn from(value: i64) -> Value

Converts to this type from the input type.
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impl From<i8> for Value

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fn from(value: i8) -> Value

Converts to this type from the input type.
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impl PartialEq for Value

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

Tests for self and other values to be equal, and is used by ==.
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const fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.
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impl<C: Configuration> TryFromColumn<C> for Value

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type Error = ColumnConvertError

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fn try_from_column<'i, 's, 'c, S>( column: Column<'i, 's, 'c, S, C>, ) -> Result<Self, Self::Error>

Create Self from row column.
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impl TryFromValue for Value

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impl StructuralPartialEq for Value

Auto Trait Implementations§

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impl Freeze for Value

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impl RefUnwindSafe for Value

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impl Send for Value

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impl Sync for Value

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impl Unpin for Value

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impl UnwindSafe for Value

Blanket Implementations§

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impl<T> Any for T
where T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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impl<T> Borrow<T> for T
where T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for T
where T: ?Sized,

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fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
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impl<T> CloneToUninit for T
where T: Clone,

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unsafe fn clone_to_uninit(&self, dest: *mut u8)

🔬This is a nightly-only experimental API. (clone_to_uninit)
Performs copy-assignment from self to dest. Read more
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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T, U> Into<U> for T
where U: From<T>,

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fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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impl<T> ToErrorNoContext<T> for T

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impl<T> ToOwned for T
where T: Clone,

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type Owned = T

The resulting type after obtaining ownership.
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fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
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fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more
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impl<T> ToString for T
where T: Display + ?Sized,

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fn to_string(&self) -> String

Converts the given value to a String. Read more
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impl<T, U> TryFrom<U> for T
where U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T> TryFromRow<DefaultConfiguration> for T

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type Error = RowConvertError

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fn try_from_row<'r, 's, 'c, S>( row: Row<'r, 's, 'c, S, DefaultConfiguration>, ) -> Result<T, <T as TryFromRow<DefaultConfiguration>>::Error>

Given ColumnType convert from Row to other type of value representing table row.
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impl<T> TryFromValueRow for T
where T: TryFromValue,

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type Error = ValueRowConvertError

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fn try_from_value_row( values: Vec<Option<Value>>, ) -> Result<T, <T as TryFromValueRow>::Error>

Convert from ValueRow to other type of value representing table row.
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impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

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type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.
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impl<E, C> WrapContext<C> for E

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type ContextError = ErrorContext<E, C>

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fn wrap_context(self, context: C) -> ErrorContext<E, C>