class ROM::SQL::Associations::ManyToOne

Public Instance Methods

call(target: self.target, preload: false) click to toggle source

@api public

# File lib/rom/sql/associations/many_to_one.rb, line 15
def call(target: self.target, preload: false)
  if preload
    schema = target.schema.qualified
    relation = target
  else
    right = source

    target_pk = target.schema.primary_key_name
    right_fk = target.foreign_key(source.name)

    target_schema = target.schema
    right_schema = right.schema.project_pk

    schema =
      if target.schema.key?(right_fk)
        target_schema
      else
        target_schema.merge(right_schema.project_fk(target_pk => right_fk))
      end.qualified

    relation = target.join(source_table, join_keys)
  end

  if view
    apply_view(schema, relation)
  else
    schema.(relation)
  end
end
join(type, source = self.source, target = self.target) click to toggle source

@api public

# File lib/rom/sql/associations/many_to_one.rb, line 46
def join(type, source = self.source, target = self.target)
  source.__send__(type, target.name.dataset, join_keys).qualified
end
prepare(target) click to toggle source

@api private

# File lib/rom/sql/associations/many_to_one.rb, line 51
def prepare(target)
  call(target: target, preload: true)
end