Struct UniqueConstraint

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pub struct UniqueConstraint {
    pub columns: Vec<ColumnIdent>,
    /* private fields */
}

Expand description

Can appear on columns, scalars, and tables.

Constraints with the same name are merged, unifying columns. When appears on a scalar - always inlined to column.

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§columns: Vec<ColumnIdent>

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impl UniqueConstraint

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pub fn new( name: Option<DbIdent<ConstraintKind>>, columns: Vec<ColumnIdent>, ) -> Self

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pub fn propagate_to_table(self, column: ColumnIdent) -> Self

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pub fn clone_for_propagate(&self) -> Self

Trait Implementations§

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impl Debug for UniqueConstraint

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

Formats the value using the given formatter. Read more

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fn uid(&self) -> Uid

Auto Trait Implementations§

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impl Freeze for UniqueConstraint

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impl RefUnwindSafe for UniqueConstraint

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impl Send for UniqueConstraint

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impl Sync for UniqueConstraint

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impl Unpin for UniqueConstraint

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impl UnwindSafe for UniqueConstraint

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> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T> Instrument for T

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fn instrument(self, span: Span) -> Instrumented<Self>

Instruments this type with the provided Span, returning an Instrumented wrapper. Read more

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fn in_current_span(self) -> Instrumented<Self>

Instruments this type with the current Span, returning an Instrumented wrapper. Read more

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impl<T, U> Into 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> IntoEither for T

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fn into_either(self, into_left: bool) -> Either<Self, Self>

Converts self into a Left variant of Either<Self, Self> if into_left is true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more

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fn into_either_with<F>(self, into_left: F) -> Either<Self, Self>
where F: FnOnce(&Self) -> bool,

Converts self into a Left variant of Either<Self, Self> if into_left(&self) returns true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more

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