Module: Quiver::Action::FilterValue

Defined in:
lib/quiver/action/filter_value.rb

Constant Summary collapse

PRESENCE = 
%w|nil not_nil|.freeze
EQUALITIES = 
%w|eq not_eq|.freeze
INCLUSIONS = 
%w|in not_in|.freeze
INEQUALITIES = 
%w|gt lt gte lte not_gt not_lt not_gte not_lte|.freeze

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Instance Attribute Details

#errors ⇒ Object

Returns the value of attribute errors.



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# File 'lib/quiver/action/filter_value.rb', line 73

def errors
  @errors
end

Class Method Details

.klasses ⇒ Object 



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# File 'lib/quiver/action/filter_value.rb', line 69

def self.klasses
  @klasses ||= {}
end

.with(type, *args, extras: []) ⇒ Object 



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# File 'lib/quiver/action/filter_value.rb', line 9

def self.with(type, *args, extras:[])
  set = Set.new(args + extras)
  klasses[[set, type]] ||= Class.new do
    include Extant::Attributes
    include FilterValue

    def self.supported_comparisons
      @supported_comparisons
    end

    def self.extra_supported_comparisons
      @extra_supported_comparisons
    end
  end.tap do |klass|
    klass.instance_variable_set(
      '@supported_comparisons',
      set
    )

    klass.instance_variable_set(
      '@extra_supported_comparisons',
      extras
    )

    extras.each do |extra|
      klass.send(:attribute, extra, type)
    end

    if set.include?(:presence)
      klass.send(:attribute, :nil, String)
      klass.send(:attribute, :not_nil, String)
    end

    if set.include?(:equalities)
      klass.send(:attribute, :eq, type)
      klass.send(:attribute, :not_eq, type)
    end

    if set.include?(:inclusions)
      klass.send(:attribute, :in, Array[type])
      klass.send(:attribute, :not_in, Array[type])
    end

    if set.include?(:inequalities)
      klass.send(:attribute, :gt, type)
      klass.send(:attribute, :not_gt, type)
      klass.send(:attribute, :gte, type)
      klass.send(:attribute, :not_gte, type)
      klass.send(:attribute, :lt, type)
      klass.send(:attribute, :not_lt, type)
      klass.send(:attribute, :lte, type)
      klass.send(:attribute, :not_lte, type)
    end
  end
end

.with_all(type, extras: []) ⇒ Object 



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# File 'lib/quiver/action/filter_value.rb', line 65

def self.with_all(type, extras:[])
  with(type, :presence, :equalities, :inequalities, :inclusions)
end

Instance Method Details

#filter_attributes ⇒ Object 



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# File 'lib/quiver/action/filter_value.rb', line 110

def filter_attributes
  attributes.slice(*filter.keys.map(&:to_sym))
end

#initialize(filter) ⇒ Object 



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# File 'lib/quiver/action/filter_value.rb', line 75

def initialize(filter)
  self.errors = Quiver::ErrorCollection.new

  filter = filter.to_h if filter.is_a?(Lotus::Utils::Hash)
  self.filter = filter

  if filter.is_a?(Hash)
    keys = filter.keys
    keys.each do |key|
      filter[key.sub('~', 'not_')] = filter.delete(key)
    end

    keys.each do |key|
      if INCLUSIONS.include?(key) && !filter[key].is_a?(Array)
        errors << FilterError.new("'#{key}' must map to an Array")
        filter[key] = []
      end
    end

    (filter.keys - supported_comparisons).each do |key|
      errors << FilterError.new("'#{key}' is not supported")
      filter.delete(key)
    end

    filter
  else
    filter = {}
    errors << FilterError.new('filters must be a Hash')
  end

  super

  validate
end

#valid? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/quiver/action/filter_value.rb', line 114

def valid?
  !errors.any?
end