Enum HasOne 

pub enum HasOne<E: EntityTrait> {
    Unloaded,
    NotFound,
    Loaded(Box<E::ModelEx>),
}

Variants

Unloaded

NotFound

Loaded(Box<E::ModelEx>)

Implementations

impl<E: EntityTrait> HasOne<E>

pub fn loaded<M: Into<E::ModelEx>>(model: M) -> Self

Construct a HasOne::Loaded value

pub fn is_unloaded(&self) -> bool

Return true if variant is Unloaded

pub fn is_not_found(&self) -> bool

Return true if variant is NotFound

pub fn is_loaded(&self) -> bool

Return true if variant is Loaded

pub fn is_none(&self) -> bool

True if variant is Unloaded or NotFound

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 take(&mut self) -> Option<E::ModelEx>

Take ownership of the contained Model, leaving Unloaded in place.

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

Panics

Panics if called on Unloaded or NotFound values.

impl<E> HasOne<E>

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

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

Trait Implementations

impl<E: Clone + EntityTrait> Clone for HasOne<E>

where E::ModelEx: Clone,

fn clone(&self) -> HasOne<E>

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl<E: Debug + EntityTrait> Debug for HasOne<E>

where E::ModelEx: Debug,

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

Formats the value using the given formatter.

impl<E: EntityTrait> Default for HasOne<E>

fn default() -> HasOne<E>

Returns the “default value” for a type.

impl<'de, E> Deserialize<'de> for HasOne<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<E: EntityTrait> From<HasOne<E>> for Option<Box<E::ModelEx>>

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

Converts to this type from the input type.

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

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

Converts to this type from the input type.

impl<E> Hash for HasOne<E>

where E: EntityTrait, E::ModelEx: 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<E> PartialEq<HasOne<E>> for Option<Box<E::ModelEx>>

where E: EntityTrait, E::ModelEx: PartialEq,

fn eq(&self, other: &HasOne<E>) -> bool

Tests for self and other values to be equal, and is used by ==.

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl<E> PartialEq<Option<Box<<E as EntityTrait>::ModelEx>>> for HasOne<E>

where E: EntityTrait, E::ModelEx: PartialEq,

fn eq(&self, other: &Option<Box<E::ModelEx>>) -> bool

Tests for self and other values to be equal, and is used by ==.

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl<E> PartialEq for HasOne<E>

where E: EntityTrait, E::ModelEx: PartialEq,

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

Tests for self and other values to be equal, and is used by ==.

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl<E> Serialize for HasOne<E>

where E: EntityTrait, E::ModelEx: 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.

impl<E> Eq for HasOne<E>

where E: EntityTrait, E::ModelEx: Eq,