Class: Kingsman::ParameterFilter

Inherits:
Object
  • Object
show all
Defined in:
lib/kingsman/parameter_filter.rb

Instance Method Summary collapse

Constructor Details

#initialize(case_insensitive_keys, strip_whitespace_keys) ⇒ ParameterFilter

Returns a new instance of ParameterFilter.



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# File 'lib/kingsman/parameter_filter.rb', line 5

def initialize(case_insensitive_keys, strip_whitespace_keys)
  @case_insensitive_keys = case_insensitive_keys || []
  @strip_whitespace_keys = strip_whitespace_keys || []
end

Instance Method Details

#filter(conditions) ⇒ Object 



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# File 'lib/kingsman/parameter_filter.rb', line 10

def filter(conditions)
  conditions = stringify_params(conditions.dup)

  conditions.merge!(filtered_hash_by_method_for_given_keys(conditions.dup, :downcase, @case_insensitive_keys))
  conditions.merge!(filtered_hash_by_method_for_given_keys(conditions.dup, :strip, @strip_whitespace_keys))

  conditions
end

#filtered_hash_by_method_for_given_keys(conditions, method, condition_keys) ⇒ Object 



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# File 'lib/kingsman/parameter_filter.rb', line 19

def filtered_hash_by_method_for_given_keys(conditions, method, condition_keys)
  condition_keys.each do |k|
    next unless conditions.key?(k)

    value = conditions[k]
    conditions[k] = value.send(method) if value.respond_to?(method)
  end

  conditions
end

#stringify_params(conditions) ⇒ Object

Force keys to be string to avoid injection on mongoid related database.



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# File 'lib/kingsman/parameter_filter.rb', line 31

def stringify_params(conditions)
  return conditions unless conditions.is_a?(Hash)
  conditions.each do |k, v|
    conditions[k] = v.to_s if param_requires_string_conversion?(v)
  end
end