Module: Sublet::PathResolver

Defined in:
lib/sublet/path_resolver.rb

Class Method Summary collapse

Class Method Details

.resolve_path_to_tenant(klass) ⇒ Object

Walk from klass following declared subletter parents until we find a tenant root (klass._sublet_is_tenant == true). Returns an array of association names (symbols), e.g. [:department, :company] or [] if klass itself is the tenant root.



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# File 'lib/sublet/path_resolver.rb', line 11

def resolve_path_to_tenant(klass)
  path = []
  current = klass
  # prevent infinite loops
  seen = {}

  until current.nil? || current._sublet_is_tenant
    return nil unless current.respond_to?(:_subletter_parent) # nothing declared

    parent_assoc = current._subletter_parent
    return nil if parent_assoc.nil?
    return nil if seen[current] # cycle detected

    seen[current] = true

    path << parent_assoc
    # Follow reflection to next klass
    refl = current.reflect_on_association(parent_assoc)
    return nil unless refl

    current = refl.klass
  end

  current&._sublet_is_tenant ? path : nil
end