Class: Praxis::Config

Inherits:
Object
  • Object
show all
Includes:
Attributor::Type
Defined in:
lib/praxis/config.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize ⇒ Config

Returns a new instance of Config.



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# File 'lib/praxis/config.rb', line 9

def initialize
  @attribute = Attributor::Attribute.new(Attributor::Struct) {}
  @value = nil
end

Instance Attribute Details

#attribute ⇒ Object (readonly)

Returns the value of attribute attribute.



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# File 'lib/praxis/config.rb', line 7

def attribute
  @attribute
end

Instance Method Details

#define(key = nil, type = Attributor::Struct, **opts, &block) ⇒ Object

…or using this way too (equivalent) define(:app) do

attribute :two, String

end You can also define a key to be a non-Struct type define :app, Attributor::Hash

Raises:



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# File 'lib/praxis/config.rb', line 41

def define(key = nil, type = Attributor::Struct, **opts, &block)
  raise Exceptions::InvalidConfiguration, "You cannot define the top level configuration with a non-Struct type. Got: #{type.inspect}" if key.nil? && type != Attributor::Struct

  case key
  when String, Symbol, NilClass

    top = key.nil? ? @attribute : @attribute.attributes[key]
    if top # key defined...redefine
      raise Exceptions::InvalidConfiguration, "Incompatible type received for extending configuration key [#{key}]. Got type #{type.name}" unless type == Attributor::Struct && top.type < Attributor::Struct

      top.options.merge!(opts)
      top.type.attributes(**opts, &block)
    else
      @attribute.attributes[key] = Attributor::Attribute.new(type, opts, &block)
    end
  else
    raise Exceptions::InvalidConfiguration, "Defining a configuration key requires a String or a Symbol key. Got: #{key.inspect}"
  end
end

#get ⇒ Object 



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# File 'lib/praxis/config.rb', line 75

def get
  @value ||= begin # rubocop:disable Naming/MemoizedInstanceVariableName
    context = %w[Application config].freeze
    @attribute.load({}, context, recurse: true)
  end
end

#set(config) ⇒ Object

Raises:



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# File 'lib/praxis/config.rb', line 61

def set(config)
  context = %w[Application config]

  begin
    @value = @attribute.load(config, context, recurse: true)
  rescue Attributor::AttributorException => e
    raise Exceptions::ConfigLoad.new(exception: e)
  end

  errors = @attribute.validate(@value, context)

  raise Exceptions::ConfigValidation.new(errors: errors) unless errors.empty?
end