Enum Defaultable

pub enum Defaultable<T> {
    Default,
    Value(T),
}

Variants§

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Trait Implementations§

Returns a duplicate of the value. Read more

Performs copy-assignment from source. Read more

Formats the value using the given formatter. Read more

Returns the “default value” for a type. Read more

Converts to this type from the input type.

Equality operator ==. Read more

Inequality operator !=. Read more

Auto Trait Implementations§

Blanket Implementations§

Gets the TypeId of self. Read more

Immutably borrows from an owned value. Read more

Mutably borrows from an owned value. Read more

🔬This is a nightly-only experimental API. (clone_to_uninit)

Performs copy-assignment from self to dest. Read more

Returns the argument unchanged.

Calls U::from(self).

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

The resulting type after obtaining ownership.

Creates owned data from borrowed data, usually by cloning. Read more

Uses borrowed data to replace owned data, usually by cloning. Read more

The type returned in the event of a conversion error.

Performs the conversion.

The type returned in the event of a conversion error.

Performs the conversion.

Defaultable

Enum Defaultable Copy item path

Variants§

Default

Value(T)

Trait Implementations§

impl<T: Clone> Clone for Defaultable<T>

fn clone(&self) -> Defaultable<T>

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

impl<T: Debug> Debug for Defaultable<T>

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

impl<T> Default for Defaultable<T>

fn default() -> Defaultable<T>

impl<T: Into<Value>> From<Defaultable<T>> for InsertValue

fn from(d: Defaultable<T>) -> Self

impl IntoColumnValue<Defaultable<DateTime<Utc>>> for DateTime<Utc>

fn into_column_value(self) -> Defaultable<DateTime<Utc>>

impl IntoColumnValue<Defaultable<DateTime<Utc>>> for Option<DateTime<Utc>>

fn into_column_value(self) -> Defaultable<DateTime<Utc>>

impl IntoColumnValue<Defaultable<Decimal>> for Decimal

fn into_column_value(self) -> Defaultable<Decimal>

impl IntoColumnValue<Defaultable<Decimal>> for Option<Decimal>

fn into_column_value(self) -> Defaultable<Decimal>

impl IntoColumnValue<Defaultable<NaiveDate>> for NaiveDate

fn into_column_value(self) -> Defaultable<NaiveDate>

impl IntoColumnValue<Defaultable<NaiveDate>> for Option<NaiveDate>

fn into_column_value(self) -> Defaultable<NaiveDate>

impl IntoColumnValue<Defaultable<Option<DateTime<Utc>>>> for DateTime<Utc>

fn into_column_value(self) -> Defaultable<Option<DateTime<Utc>>>

impl IntoColumnValue<Defaultable<Option<DateTime<Utc>>>> for Option<DateTime<Utc>>

fn into_column_value(self) -> Defaultable<Option<DateTime<Utc>>>

impl IntoColumnValue<Defaultable<Option<Decimal>>> for Decimal

fn into_column_value(self) -> Defaultable<Option<Decimal>>

impl IntoColumnValue<Defaultable<Option<Decimal>>> for Option<Decimal>

fn into_column_value(self) -> Defaultable<Option<Decimal>>

impl IntoColumnValue<Defaultable<Option<NaiveDate>>> for NaiveDate

fn into_column_value(self) -> Defaultable<Option<NaiveDate>>

impl IntoColumnValue<Defaultable<Option<NaiveDate>>> for Option<NaiveDate>

fn into_column_value(self) -> Defaultable<Option<NaiveDate>>

impl IntoColumnValue<Defaultable<Option<String>>> for String

fn into_column_value(self) -> Defaultable<Option<String>>

impl IntoColumnValue<Defaultable<Option<String>>> for Option<String>

fn into_column_value(self) -> Defaultable<Option<String>>

impl IntoColumnValue<Defaultable<Option<String>>> for &str

fn into_column_value(self) -> Defaultable<Option<String>>

impl IntoColumnValue<Defaultable<Option<String>>> for &String

fn into_column_value(self) -> Defaultable<Option<String>>

impl IntoColumnValue<Defaultable<Option<Uuid>>> for Uuid

fn into_column_value(self) -> Defaultable<Option<Uuid>>

impl IntoColumnValue<Defaultable<Option<Uuid>>> for Option<Uuid>

fn into_column_value(self) -> Defaultable<Option<Uuid>>

impl IntoColumnValue<Defaultable<Option<Vec<u8>>>> for Vec<u8>

fn into_column_value(self) -> Defaultable<Option<Vec<u8>>>

impl IntoColumnValue<Defaultable<Option<Vec<u8>>>> for Option<Vec<u8>>

fn into_column_value(self) -> Defaultable<Option<Vec<u8>>>

impl IntoColumnValue<Defaultable<Option<bool>>> for bool

fn into_column_value(self) -> Defaultable<Option<bool>>

impl IntoColumnValue<Defaultable<Option<bool>>> for Option<bool>

fn into_column_value(self) -> Defaultable<Option<bool>>

impl IntoColumnValue<Defaultable<Option<f64>>> for f64

fn into_column_value(self) -> Defaultable<Option<f64>>

impl IntoColumnValue<Defaultable<Option<f64>>> for Option<f64>

fn into_column_value(self) -> Defaultable<Option<f64>>

impl IntoColumnValue<Defaultable<Option<i32>>> for i32

fn into_column_value(self) -> Defaultable<Option<i32>>

impl IntoColumnValue<Defaultable<Option<i32>>> for Option<i32>

fn into_column_value(self) -> Defaultable<Option<i32>>

impl IntoColumnValue<Defaultable<Option<i64>>> for i64

fn into_column_value(self) -> Defaultable<Option<i64>>

impl IntoColumnValue<Defaultable<Option<i64>>> for Option<i64>

fn into_column_value(self) -> Defaultable<Option<i64>>

impl IntoColumnValue<Defaultable<String>> for String

fn into_column_value(self) -> Defaultable<String>

impl IntoColumnValue<Defaultable<String>> for Option<String>

fn into_column_value(self) -> Defaultable<String>

impl IntoColumnValue<Defaultable<String>> for &str

fn into_column_value(self) -> Defaultable<String>

impl IntoColumnValue<Defaultable<String>> for &String

fn into_column_value(self) -> Defaultable<String>

impl IntoColumnValue<Defaultable<Uuid>> for Uuid

Enum Defaultable

impl<T> Freeze for Defaultable<T>
where T: Freeze,

impl<T> RefUnwindSafe for Defaultable<T>
where T: RefUnwindSafe,

impl<T> Send for Defaultable<T>
where T: Send,

impl<T> Sync for Defaultable<T>
where T: Sync,

impl<T> Unpin for Defaultable<T>
where T: Unpin,

impl<T> UnsafeUnpin for Defaultable<T>
where T: UnsafeUnpin,

impl<T> UnwindSafe for Defaultable<T>
where T: UnwindSafe,

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

impl<T> Borrow<T> for T
where T: ?Sized,

impl<T> BorrowMut<T> for T
where T: ?Sized,

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

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

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

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

impl<T, U> TryInto<U> for T
where U: TryFrom<T>,