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module Partitioned
class MultiLevel
#
# Configuration manager for multi-level partitioning
# it supports, the front-end UI (a Domain Specific Language) using {Dsl}
# state using {Data}
# and a parser using {Reader}
#
module Configurator
# The Domain Specific Language UI manager for multi level partitioning classes
class Dsl < Partitioned::PartitionedBase::Configurator::Dsl
# used to prevent use of invalid directives
class InvalidForMultiLevelPartitioning < StandardError
def initialize(model, dsl_key, remedy)
super("#{model.name}: '#{dsl_key}' is not valid for multi-level partitioning. #{remedy}")
end
end
attr_reader :data, :model
def initialize(most_derived_activerecord_class)
super(most_derived_activerecord_class, Partitioned::MultiLevel::Configurator::Data)
@using_classes = []
end
#
# Definition of classes which will be used at multi level partitioning.
#
# @param [*Array<Class>] classes the classes, in order, used to partition this model
# @return [optional]
def using_classes(*classes)
data.using_classes += [*classes]
end
# @raise [InvalidForMultiLevelPartitioning] always raised. `on` is not a valid DSL directive for multi-level partitioning
def on(*ignored)
raise InvalidForMultiLevelPartitioning.new(model, :on, "the partitioned keyword 'using' is used to define multi-level partitioned tables.")
end
end
end
end
end
Version data entries
21 entries across 21 versions & 1 rubygems