Struct LinkTableInfo 

pub struct LinkTableInfo {
    pub table_name: &'static str,
    pub local_column: &'static str,
    pub remote_column: &'static str,
    pub local_columns: Option<&'static [&'static str]>,
    pub remote_columns: Option<&'static [&'static str]>,
}

Information about a link/join table for many-to-many relationships.

Fields

table_name: &'static str

The link table name (e.g., "hero_powers").

local_column: &'static str

Column in link table pointing to the local model (e.g., "hero_id").

remote_column: &'static str

Column in link table pointing to the remote model (e.g., "power_id").

local_columns: Option<&'static [&'static str]>

Composite local key columns (for composite PK parents).

If set, this takes precedence over local_column.

remote_columns: Option<&'static [&'static str]>

Composite remote key columns (for composite PK children).

If set, this takes precedence over remote_column.

Implementations

impl LinkTableInfo

pub const fn new( table_name: &'static str, local_column: &'static str, remote_column: &'static str, ) -> Self

Create a new link-table definition.

pub const fn composite( table_name: &'static str, local_columns: &'static [&'static str], remote_columns: &'static [&'static str], ) -> Self

Create a new composite link-table definition.

Column order matters:

• local_columns must match the parent PK value ordering
• remote_columns must match the child PK value ordering

pub fn local_cols(&self) -> &[&'static str]

Return the local key columns (single or composite).

pub fn remote_cols(&self) -> &[&'static str]

Return the remote key columns (single or composite).

Trait Implementations

impl Clone for LinkTableInfo

fn clone(&self) -> LinkTableInfo

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for LinkTableInfo

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

Formats the value using the given formatter.

impl PartialEq for LinkTableInfo

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

impl Eq for LinkTableInfo

impl StructuralPartialEq for LinkTableInfo