Enum Many 

pub enum Many<T> {
    Data(Vec<T>),
    NotFetched,
    None,
}

Enum for defining one-to-many or many-to-many relationships

Variants

Data(Vec<T>)

This holds the created/fetched data in a vector

NotFetched

For when the data exists but is not fetched

None

For when you have no data to fill or fetch from the DB

Implementations

impl<T> Many<T>

pub fn data(&self) -> Result<&Vec<T>, Error>

Returns the Vec of data if they exist and were fetched/created

pub fn data_mut(&mut self) -> Result<&mut Vec<T>, Error>

Returns the mutable Vec of data if they exist and were fetched/created

pub fn is_data(&self) -> bool

Is this a Data variant?

pub fn is_not_fetched(&self) -> bool

Is this a NotFetched variant?

pub fn is_none(&self) -> bool

Is this a None variant?

Trait Implementations

impl<T> Clone for Many<T>

where T: Clone,

fn clone(&self) -> Many<T>

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl<T> Debug for Many<T>

where T: Debug,

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

Formats the value using the given formatter.

impl<T> Default for Many<T>

fn default() -> Many<T>

Returns the “default value” for a type.

impl<'de, T> Deserialize<'de> for Many<T>

where T: Deserialize<'de>,

fn deserialize<__D>( __deserializer: __D, ) -> Result<Many<T>, <__D as Deserializer<'de>>::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl<T> Eq for Many<T>

where T: Eq,

impl<T> From<Vec<T>> for Many<T>

fn from(entities: Vec<T>) -> Many<T>

Converts to this type from the input type.

impl<T> PartialEq for Many<T>

where T: PartialEq,

fn eq(&self, other: &Many<T>) -> bool

Equality operator ==.

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

Inequality operator !=.

impl<T> Serialize for Many<T>

where T: Serialize,

fn serialize<__S>( &self, __serializer: __S, ) -> Result<<__S as Serializer>::Ok, <__S as Serializer>::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl<T> StructuralPartialEq for Many<T>

where T: PartialEq,