Struct RelationHop 

pub struct RelationHop {
    pub parent_table: &'static str,
    pub parent_column: &'static str,
    pub related_table: &'static str,
    pub related_column: &'static str,
    pub quantifier: RelationQuantifier,
}

One traversed relation edge: the FK linkage plus how the related rows are quantified (ToOne for a plain to-one hop, Some/Every/None for a to-many hop under a quantifier).

Fields

parent_table: &'static str

parent_column: &'static str

related_table: &'static str

related_column: &'static str

quantifier: RelationQuantifier

Implementations

impl RelationHop

pub const fn new( parent_table: &'static str, parent_column: &'static str, related_table: &'static str, related_column: &'static str, quantifier: RelationQuantifier, ) -> RelationHop

pub const fn with_quantifier( self, quantifier: RelationQuantifier, ) -> RelationHop

Same linkage, re-quantified. Used when a to-many hop is recorded before the caller has picked some/every/none.

Trait Implementations

impl Clone for RelationHop

fn clone(&self) -> RelationHop

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for RelationHop

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

Formats the value using the given formatter.

impl PartialEq for RelationHop

fn eq(&self, other: &RelationHop) -> 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 Copy for RelationHop

impl Eq for RelationHop

impl StructuralPartialEq for RelationHop