/
setup.rb
120 lines (103 loc) · 2.68 KB
/
setup.rb
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require 'rom/setup/finalize'
require 'rom/support/deprecations'
module ROM
# Exposes DSL for defining relations, mappers and commands
#
# @api public
class Setup
extend Deprecations
include Equalizer.new(:gateways, :container)
# @return [Hash] configured gateways
#
# @api private
attr_reader :gateways
# Deprecated accessor for gateways.
#
# @see gateways
deprecate :repositories, :gateways
# @return [Symbol] default (first) adapter
#
# @api private
attr_reader :default_adapter
# @return [Array] registered relation subclasses
#
# @api private
attr_reader :relation_classes
# @return [Array] registered mapper subclasses
#
# @api private
attr_reader :mapper_classes
# @return [Array] registered command subclasses
#
# @api private
attr_reader :command_classes
# @return [Conainer] finalized container after setup phase is over
#
# @api private
attr_reader :container
alias_method :env, :container
# @api private
def initialize(gateways, default_adapter = nil)
@gateways = gateways
@default_adapter = default_adapter
@relation_classes = []
@mapper_classes = []
@command_classes = []
@container = nil
end
# Finalize the setup
#
# @return [Container] frozen container with access to gateways,
# relations, mappers and commands
#
# @api public
def finalize
raise EnvAlreadyFinalizedError if container
finalize = Finalize.new(
gateways, relation_classes, mapper_classes, command_classes
)
@container = finalize.run!
end
# Return gateway identified by name
#
# @return [Gateway]
#
# @api private
def [](name)
gateways.fetch(name)
end
# Relation sub-classes are being registered with this method during setup
#
# @api private
def register_relation(klass)
@relation_classes << klass
end
# Mapper sub-classes are being registered with this method during setup
#
# @api private
def register_mapper(klass)
@mapper_classes << klass
end
# Command sub-classes are being registered with this method during setup
#
# @api private
def register_command(klass)
@command_classes << klass
end
# Hook for respond_to? used internally
#
# @api private
def respond_to_missing?(name, _include_context = false)
gateways.key?(name)
end
private
# Returns gateway if method is a name of a registered gateway
#
# @return [Gateway]
#
# @api private
def method_missing(name, *)
gateways.fetch(name) { super }
end
end
end