pub struct DefaultValueWalker<'db> { /* private fields */ }
Expand description

An @default() attribute on a field.

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impl<'db> DefaultValueWalker<'db>

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pub fn ast_attribute(self) -> &'db Attribute

The AST node of the attribute.

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pub fn value(self) -> &'db Expression

The value expression in the @default attribute.

score Int @default(0)
                   ^
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pub fn is_autoincrement(self) -> bool

Is this an @default(autoincrement())?

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pub fn is_cuid(self) -> bool

Is this an @default(cuid())?

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pub fn is_nanoid(self) -> bool

Is this an @default(nanoid())?

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pub fn is_dbgenerated(self) -> bool

Is this an @default(dbgenerated())?

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pub fn is_auto(self) -> bool

Is this an @default(auto())?

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pub fn is_now(self) -> bool

Is this an @default(now())?

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pub fn is_sequence(self) -> bool

Is this an @default(sequence())?

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pub fn is_uuid(self) -> bool

Is this an @default(uuid())?

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pub fn mapped_name(self) -> Option<&'db str>

The mapped name of the default value. Not applicable to all connectors. See crate docs for details on mapped names.

name String @default("george", map: "name_default_to_george")
                                    ^^^^^^^^^^^^^^^^^^^^^^^^
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pub fn field(self) -> ScalarFieldWalker<'db>

The field carrying the default attribute.

name String @default("george")
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

Trait Implementations§

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impl<'db> Clone for DefaultValueWalker<'db>

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fn clone(&self) -> DefaultValueWalker<'db>

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

Performs copy-assignment from source. Read more
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impl<'db> Copy for DefaultValueWalker<'db>

Auto Trait Implementations§

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impl<'db> RefUnwindSafe for DefaultValueWalker<'db>

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impl<'db> Send for DefaultValueWalker<'db>

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impl<'db> Sync for DefaultValueWalker<'db>

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impl<'db> Unpin for DefaultValueWalker<'db>

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impl<'db> UnwindSafe for DefaultValueWalker<'db>

Blanket Implementations§

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impl<T> Any for Twhere 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 Twhere 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 Twhere 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, U> Into<U> for Twhere 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 Twhere 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 Twhere 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, U> TryInto<U> for Twhere 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.