Class: ClassyFilter::Base

Inherits:
Object
  • Object
show all
Extended by:
ClassMethods, Forwardable
Defined in:
lib/classy_filter.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Methods included from ClassMethods

coercion, coercions_module, filter_field, predicate, predicates_module

Constructor Details

#initialize(params) ⇒ Base

Returns a new instance of Base.



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# File 'lib/classy_filter.rb', line 16

def initialize(params)
  @params = params.transform_keys(&:to_s)
end

Instance Attribute Details

#params ⇒ Object (readonly)

Returns the value of attribute params.



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# File 'lib/classy_filter.rb', line 14

def params
  @params
end

Instance Method Details

#call(dataset) ⇒ Object 



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# File 'lib/classy_filter.rb', line 20

def call(dataset)
  filter_fields.reduce(dataset) do |ds, (value, field)|
    value = coercions_module.coerce(value, field.coercion) if field.coercion
    attribute = field.attribute || field.param_name
    predicates_module.send(field.predicate, ds, attribute, value)
  end
end