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Versions: 10
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Contents
module ROM
class Relation
# Interface for objects that can be materialized into a loaded relation
#
# @api public
module Materializable
# Coerce the relation to an array
#
# @return [Array]
#
# @api public
def to_a
call.to_a
end
alias_method :to_ary, :to_a
# Yield relation tuples
#
# @yield [Hash,Object]
#
# @api public
def each
return to_enum unless block_given?
to_a.each { |tuple| yield(tuple) }
end
# Delegate to loaded relation and return one object
#
# @return [Object]
#
# @see Loaded#one
#
# @api public
def one
call.one
end
# Delegate to loaded relation and return one object
#
# @return [Object]
#
# @see Loaded#one
#
# @api public
def one!
call.one!
end
# Return first tuple from a relation coerced to an array
#
# @return [Object]
#
# @api public
def first
to_a.first
end
end
end
end
Version data entries
10 entries across 10 versions & 1 rubygems