Enum BelongsTo 

pub enum BelongsTo<T>
where
    T: BelongsToCardinality,
{
    Unloaded,
    Loaded(<T as BelongsToCardinality>::Loaded),
}

Variants

Unloaded

Loaded(<T as BelongsToCardinality>::Loaded)

Implementations

impl<T> BelongsTo<T>

where T: BelongsToCardinality,

pub fn loaded<M>(model: T::Value<M>) -> Self

where M: Into<<<T as BelongsToCardinality>::Entity as EntityTrait>::ModelEx>,

pub fn is_unloaded(&self) -> bool

Return true if variant is Unloaded

pub fn is_loaded(&self) -> bool

Return true if variant is Loaded

impl<E> BelongsTo<E>

where E: EntityTrait,

pub fn as_ref(&self) -> Option<&E::ModelEx>

Get a reference, if loaded

pub fn as_mut(&mut self) -> Option<&mut E::ModelEx>

Get a mutable reference, if loaded

pub fn into_option(self) -> Option<E::ModelEx>

Convert into an Option<ModelEx>

pub fn unwrap(self) -> E::ModelEx

Panics

Panics if called on an Unloaded value.

impl<E> BelongsTo<Option<E>>

where E: EntityTrait,

pub fn is_not_found(&self) -> bool

Return true if this optional relation was loaded and no model was found.

pub fn is_unloaded_or_not_found(&self) -> bool

Return true if this optional relation holds no model — i.e. it is either Unloaded or was loaded with no match (is_not_found).

pub fn as_ref(&self) -> Option<&E::ModelEx>

Get a reference, if loaded with a model

pub fn as_mut(&mut self) -> Option<&mut E::ModelEx>

Get a mutable reference, if loaded with a model

pub fn into_option(self) -> Option<E::ModelEx>

Convert into an Option<ModelEx>

pub fn unwrap(self) -> E::ModelEx

Panics

Panics if called on an Unloaded or Loaded(None) value.

impl<E> BelongsTo<E>

where E: EntityTrait, E::ActiveModelEx: From<E::ModelEx>,

pub fn into_active_model(self) -> ActiveBelongsTo<E>

impl<E> BelongsTo<Option<E>>

where E: EntityTrait, E::ActiveModelEx: From<E::ModelEx>,

pub fn into_active_model(self) -> ActiveBelongsTo<Option<E>>

Trait Implementations

impl<T> Clone for BelongsTo<T>

where T: BelongsToCardinality, <T as BelongsToCardinality>::Loaded: Clone,

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl<T> Debug for BelongsTo<T>

where T: BelongsToCardinality, <T as BelongsToCardinality>::Loaded: Debug,

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

Formats the value using the given formatter.

impl<T> Default for BelongsTo<T>

where T: BelongsToCardinality,

fn default() -> BelongsTo<T>

Returns the “default value” for a type.

impl<'de, E> Deserialize<'de> for BelongsTo<E>

where E: EntityTrait, E::ModelEx: Deserialize<'de>,

Available on crate feature with-json only.

fn deserialize<D>(deserializer: D) -> Result<Self, D::Error>

where D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl<'de, E> Deserialize<'de> for BelongsTo<Option<E>>

where E: EntityTrait, E::ModelEx: Deserialize<'de>,

Available on crate feature with-json only.

fn deserialize<D>(deserializer: D) -> Result<Self, D::Error>

where D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl<T> Eq for BelongsTo<T>

where T: BelongsToCardinality, <T as BelongsToCardinality>::Loaded: Eq,

impl<E: EntityTrait> From<BelongsTo<E>> for Option<Box<E::ModelEx>>

fn from(value: BelongsTo<E>) -> Self

Converts to this type from the input type.

impl<E: EntityTrait> From<BelongsTo<Option<E>>> for Option<Box<E::ModelEx>>

fn from(value: BelongsTo<Option<E>>) -> Self

Converts to this type from the input type.

impl<E: EntityTrait> From<Option<Box<<E as EntityTrait>::ModelEx>>> for BelongsTo<E>

fn from(value: Option<Box<E::ModelEx>>) -> Self

Converts to this type from the input type.

impl<E: EntityTrait> From<Option<Box<<E as EntityTrait>::ModelEx>>> for BelongsTo<Option<E>>

fn from(value: Option<Box<E::ModelEx>>) -> Self

Converts to this type from the input type.

impl<T> Hash for BelongsTo<T>

where T: BelongsToCardinality, <T as BelongsToCardinality>::Loaded: Hash,

fn hash<__H: Hasher>(&self, __state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl<T> PartialEq for BelongsTo<T>

where T: BelongsToCardinality, <T as BelongsToCardinality>::Loaded: PartialEq,

fn eq(&self, __other: &Self) -> bool

Equality operator ==.

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

Inequality operator !=.

impl<T> Serialize for BelongsTo<T>

where T: BelongsToCardinality, <T as BelongsToCardinality>::Loaded: Serialize,

Available on crate feature with-json only.

fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>

where S: Serializer,

Serialize this value into the given Serde serializer.