Struct ForeignKeyMetadata 

pub struct ForeignKeyMetadata {
    pub name: &'static str,
    pub columns: &'static [&'static str],
    pub referenced_schema: &'static str,
    pub referenced_table: &'static str,
    pub referenced_columns: &'static [&'static str],
    pub on_delete: ReferentialAction,
    pub on_update: ReferentialAction,
}

Foreign key metadata attached to an entity.

Fields

name: &'static str

columns: &'static [&'static str]

referenced_schema: &'static str

referenced_table: &'static str

referenced_columns: &'static [&'static str]

on_delete: ReferentialAction

on_update: ReferentialAction

Implementations

impl ForeignKeyMetadata

pub const fn new( name: &'static str, columns: &'static [&'static str], referenced_schema: &'static str, referenced_table: &'static str, referenced_columns: &'static [&'static str], on_delete: ReferentialAction, on_update: ReferentialAction, ) -> ForeignKeyMetadata

pub fn references_table(&self, schema: &str, table: &str) -> bool

pub fn includes_column(&self, column_name: &str) -> bool

Trait Implementations

impl Clone for ForeignKeyMetadata

fn clone(&self) -> ForeignKeyMetadata

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ForeignKeyMetadata

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

Formats the value using the given formatter.

impl PartialEq for ForeignKeyMetadata

fn eq(&self, other: &ForeignKeyMetadata) -> 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 ForeignKeyMetadata

impl Eq for ForeignKeyMetadata

impl StructuralPartialEq for ForeignKeyMetadata