Class: Advanced::SearchForm

Inherits:
Object
  • Object
show all
Defined in:
lib/advanced/search_form.rb

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(opts = nil) ⇒ SearchForm

We know exactly what parameters are whitelisted, so, we can skip by AC::Parameters.



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# File 'lib/advanced/search_form.rb', line 44

def initialize(opts = nil)
  if opts.respond_to? :to_unsafe_h
    super opts.to_unsafe_h
  else
    super
  end
end

Class Method Details

.attribute(*names) ⇒ Object 



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# File 'lib/advanced/search_form.rb', line 16

def self.attribute(*names)
  names.flatten.each do |name|
    attribute_names << name
    attr_accessor name
  end
end

.attribute_names ⇒ Object 



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# File 'lib/advanced/search_form.rb', line 12

def self.attribute_names
  @attribute_names ||= Set.new
end

.nested(key, form) ⇒ Object 



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# File 'lib/advanced/search_form.rb', line 27

def self.nested(key, form)
  ivar = :"@#{key}"

  attribute_names << key

  define_method key do
    instance_variable_get(ivar) ||
      instance_variable_set(ivar, form.new)
  end

  define_method("#{key}=") do |values|
    instance_variable_set(ivar, form.new(values))
  end
end

.search(value) ⇒ Object 



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# File 'lib/advanced/search_form.rb', line 23

def self.search(value)
  attribute(*value.parameter_names)
end

Instance Method Details

#blank? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/advanced/search_form.rb', line 52

def blank?
  to_h.blank?
end

#to_search_h ⇒ Object Also known as: to_h

Pull out the blank values. Recursively check if the resulting object responds to #to_search_h, as this would indicate a SearchForm object.



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# File 'lib/advanced/search_form.rb', line 59

def to_search_h
  self.class.attribute_names.reduce({}) do |acc, key|
    value = public_send(key)
    value = value.to_search_h if value.respond_to?(:to_search_h)
    value = value.presence
    value ? acc.merge(key => value) : acc
  end
end