Enum PrimaryKeyType 

pub enum PrimaryKeyType {
    PrimaryKey,
    PartOfPrimaryKey,
    None,
}

Indicates if and how a column participates in the primary key.

Variants

PrimaryKey

Single-column primary key.

PartOfPrimaryKey

Member of a composite primary key.

None

Not part of the primary key.

Trait Implementations

impl Clone for PrimaryKeyType

fn clone(&self) -> PrimaryKeyType

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for PrimaryKeyType

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

Formats the value using the given formatter.

impl Default for PrimaryKeyType

fn default() -> PrimaryKeyType

Returns the “default value” for a type.

impl PartialEq for PrimaryKeyType

fn eq(&self, other: &PrimaryKeyType) -> 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 ToTokens for PrimaryKeyType

fn to_tokens(&self, tokens: &mut TokenStream)

Write self to the given TokenStream.

fn to_token_stream(&self) -> TokenStream

Convert self directly into a TokenStream object.

fn into_token_stream(self) -> TokenStream

where Self: Sized,

Convert self directly into a TokenStream object.

impl Copy for PrimaryKeyType

impl Eq for PrimaryKeyType

impl StructuralPartialEq for PrimaryKeyType