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Value

Enum Value 

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pub enum Value {
    Bool(Option<bool>),
    I16(Option<i16>),
    I32(Option<i32>),
    I64(Option<i64>),
    F32(Option<f32>),
    F64(Option<f64>),
    Text(Option<String>),
    DateTimeUtc(Option<DateTime<Utc>>),
    NaiveDateTime(Option<NaiveDateTime>),
    NaiveDate(Option<NaiveDate>),
    NaiveTime(Option<NaiveTime>),
}
Expand description

A raw value to compare against or store, in a database-agnostic form.

Every variant holds an Option, so an absent value (NULL) keeps its type.

Variants§

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Bool(Option<bool>)

A boolean.

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I16(Option<i16>)

A 16-bit integer.

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I32(Option<i32>)

A 32-bit integer.

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I64(Option<i64>)

A 64-bit integer.

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F32(Option<f32>)

A 32-bit float.

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F64(Option<f64>)

A 64-bit float.

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Text(Option<String>)

Text.

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DateTimeUtc(Option<DateTime<Utc>>)

A UTC date-time.

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NaiveDateTime(Option<NaiveDateTime>)

A date-time without a time zone.

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NaiveDate(Option<NaiveDate>)

A date.

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NaiveTime(Option<NaiveTime>)

A time of day.

Trait Implementations§

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impl Clone for Value

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fn clone(&self) -> Value

Returns a duplicate of the value. Read more
1.0.0 (const: unstable) · Source§

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<(), Error>

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

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

Equality operator ==. Read more
1.0.0 (const: unstable) · Source§

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

Inequality operator !=. Read more
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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 UnsafeUnpin 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> 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, U> TryFrom<U> for T
where U: Into<T>,

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type Error = !

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

Performs the conversion.
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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.