Field

Struct Field 

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pub struct Field {
    pub id: FieldId,
    pub name: FieldName,
    pub ty: FieldTy,
    pub nullable: bool,
    pub primary_key: bool,
    pub auto: Option<AutoStrategy>,
    pub constraints: Vec<Constraint>,
    pub variant: Option<VariantId>,
}

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§id: FieldId

Uniquely identifies the field within the containing model.

§name: FieldName

The field name

§ty: FieldTy

Primitive, relation, composite, …

§nullable: bool

True if the field can be nullable (None in Rust).

§primary_key: bool

True if the field is part of the primary key

§auto: Option<AutoStrategy>

Specified if and how Toasty should automatically populate this field for new values

§constraints: Vec<Constraint>

Any additional field constraints

§variant: Option<VariantId>

If this field belongs to an enum variant, identifies that variant. None for fields on root models and embedded structs.

Implementations§

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impl Field

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pub fn id(&self) -> FieldId

Gets the id.

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pub fn name(&self) -> &FieldName

Gets the name.

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pub fn ty(&self) -> &FieldTy

Gets the type.

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pub fn nullable(&self) -> bool

Gets whether the field is nullable.

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pub fn primary_key(&self) -> bool

Gets the primary key.

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pub fn auto(&self) -> Option<&AutoStrategy>

Gets the [Auto].

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pub fn is_auto_increment(&self) -> bool

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pub fn is_relation(&self) -> bool

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pub fn full_name(&self, schema: &Schema) -> String

Returns a fully qualified name for the field.

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pub fn relation_target_id(&self) -> Option<ModelId>

If the field is a relation, return the relation’s target ModelId.

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pub fn relation_target<'a>(&self, schema: &'a Schema) -> Option<&'a Model>

If the field is a relation, return the target of the relation.

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pub fn expr_ty(&self) -> &Type

The type the field evaluates too. This is the “expression type”.

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pub fn pair(&self) -> Option<FieldId>

Trait Implementations§

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impl Clone for Field

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fn clone(&self) -> Field

Returns a duplicate 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 Debug for Field

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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<&Field> for FieldId

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fn from(val: &Field) -> Self

Converts to this type from the input type.
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impl From<&Field> for Projection

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fn from(value: &Field) -> Self

Converts to this type from the input type.

Auto Trait Implementations§

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impl Freeze for Field

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impl RefUnwindSafe for Field

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impl Send for Field

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impl Sync for Field

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impl Unpin for Field

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impl UnwindSafe for Field

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> Same for T

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type Output = T

Should always be Self
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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 = 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 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<V, T> VZip<V> for T
where V: MultiLane<T>,

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fn vzip(self) -> V