Enum Relation

pub enum Relation {
    Undef,
    One2One,
    One2Many,
    Many2One,
    Many2Many,
}

Variants

Undef

One2One

Represents ‘-’ one-to-one. E.g: users.id - user_infos.user_id.

One2Many

Represents ‘<’ one-to-many. E.g: users.id < posts.user_id.

Many2One

Represents ‘>’ many-to-one. E.g: posts.user_id > users.id.

Many2Many

Represents ‘<>’ many-to-many. E.g: authors.id <> books.id.

Trait Implementations

impl Clone for Relation

fn clone(&self) -> Relation

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Relation

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

Formats the value using the given formatter.

impl Default for Relation

fn default() -> Relation

Returns the “default value” for a type.

impl FromStr for Relation

type Err = String

The associated error which can be returned from parsing.

fn from_str(s: &str) -> Result<Self, Self::Err>

Parses a string s to return a value of this type.

impl PartialEq for Relation

fn eq(&self, other: &Relation) -> 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 Eq for Relation

impl StructuralPartialEq for Relation