Module: Familia::Features

Included in:
RedisType
Defined in:
lib/familia/features/quantization.rb,
lib/familia/features.rb,
lib/familia/features/safe_dump.rb,
lib/familia/features/expiration.rb

Overview

rubocop:disable all

Defined Under Namespace

Modules: Expiration, Quantization, SafeDump

Instance Attribute Summary collapse

Instance Method Summary collapse

Instance Attribute Details

#features_enabled ⇒ Object (readonly)

Returns the value of attribute features_enabled.



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# File 'lib/familia/features.rb', line 8

def features_enabled
  @features_enabled
end

Instance Method Details

#feature(val = nil) ⇒ Object 



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# File 'lib/familia/features.rb', line 10

def feature(val = nil)
  @features_enabled ||= []

  # If there's a value provied check that it's a valid feature
  if val
    val = val.to_sym
    raise Familia::Problem, "Unsupported feature: #{val}" unless Familia::Base.features.key?(val)

    # If the feature is already enabled, do nothing but log about it
    if @features_enabled.member?(val)
      Familia.warn "[Familia::Settings] feature already enabled: #{val}"
      return
    end

    Familia.trace :FEATURE, nil, "#{self} includes #{val.inspect}", caller(1..1) if Familia.debug?

    klass = Familia::Base.features[val]

    # Extend the Familia::Base subclass (e.g. Customer) with the feature module
    include klass

    # NOTE: We may also want to extend Familia::RedisType here so that we can
    # call safe_dump on relations fields (e.g. list, set, zset, hashkey). Or
    # maybe that only makes sense for hashk/object relations.
    #
    # We'd need to avoid it getting included multiple times (i.e. once for each
    # Familia::Horreum subclass that includes the feature).

    # Now that the feature is loaded successfully, add it to the list
    # enabled features for Familia::Base classes.
    @features_enabled << val
  end

  features_enabled
end