Struct RelationDef 

pub struct RelationDef {
    pub field: String,
    pub target_struct: String,
    pub target_table: String,
    pub local_column: String,
    pub nullable: bool,
}

A belongs-to relation field: #[orm(relation = fk_column)] field: Option<Target>. Traverses local_column (a foreign key on this table) to its referenced row. When the FK column is nullable the join is a LEFT JOIN and the field is None for rows with no parent.

Fields

field: String

Struct field name (run, donor).

target_struct: String

Target struct name (Run), taken from the field’s Option<Target> type.

target_table: String

Target SQL table (runs); resolved from local_column’s foreign key by crate::parse::parse_sources. Empty in single-struct (derive) contexts.

local_column: String

The foreign-key column on this table the relation joins through.

nullable: bool

True when local_column is nullable → LEFT JOIN, None when absent.

Trait Implementations

impl Clone for RelationDef

fn clone(&self) -> RelationDef

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for RelationDef

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for RelationDef

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl PartialEq for RelationDef

fn eq(&self, other: &RelationDef) -> 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 Serialize for RelationDef

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl StructuralPartialEq for RelationDef