Returned (never raised) when a relationship write resolves to a many-to-many
modelled as back-to-back has_many — two resources each declaring a
has_many to the other over one edge (#127). Ash anchors a has_many by an
attribute on the related resource; with a has_many on both sides there is no
to-one side to anchor the connect, so the data layer can't determine which node
to relate. The edge itself already represents the many-to-many; the model just
needs a to-one side on each hop to anchor the connect.
Model many-to-many with a joiner node instead — two to-one (belongs_to)
hops through a join resource (Source →[E1] Join →[E2] Dest); see the
Party → PlaceRef → Place example. Native many_to_many is tracked in #370.
Summary
Functions
Create an Elixir.AshNeo4j.Error.UnsupportedManyToMany without raising it.
Functions
@spec exception(opts :: Keyword.t()) :: %AshNeo4j.Error.UnsupportedManyToMany{ __exception__: term(), bread_crumbs: term(), class: term(), path: term(), related: term(), relationship: term(), resource: term(), splode: term(), stacktrace: term(), vars: term() }
Create an Elixir.AshNeo4j.Error.UnsupportedManyToMany without raising it.
Keys
- :resource
- :related
- :relationship