Struct RelationRegistry 

pub struct RelationRegistry { /* private fields */ }

Registry of table foreign-key relationships for auto-join inference.

Implementations

impl RelationRegistry

pub fn new() -> Self

Create a new empty registry.

pub fn register( &mut self, from_table: &str, from_col: &str, to_table: &str, to_col: &str, )

Register a foreign-key relation from schema.

Arguments

• from_table — Source (referencing) table.
• from_col — Foreign-key column in the source table.
• to_table — Target (referenced) table.
• to_col — Primary-key column in the target table.

pub fn get(&self, from_table: &str, to_table: &str) -> Option<(&str, &str)>

Lookup join columns for a relation.

Returns (from_col, to_col) if the relation exists.

Arguments

• from_table — Source table name.
• to_table — Target table name.

pub fn referencing(&self, table: &str) -> Vec<&str>

Get all tables that reference this table (for reverse joins).

pub fn from_build_schema(schema: &Schema) -> Self

Load relations from a parsed build::Schema.

Trait Implementations

impl Debug for RelationRegistry

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

Formats the value using the given formatter.

impl Default for RelationRegistry

fn default() -> RelationRegistry

Returns the “default value” for a type.