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Move param filtering to its own object and make all finder methods pa…
…ss through it, closes #1413.
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Original file line number | Diff line number | Diff line change |
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@@ -0,0 +1,41 @@ | ||
module Devise | ||
class ParamFilter | ||
def initialize(case_insensitive_keys, strip_whitespace_keys) | ||
@case_insensitive_keys = case_insensitive_keys || [] | ||
@strip_whitespace_keys = strip_whitespace_keys || [] | ||
end | ||
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def filter(conditions) | ||
conditions = stringify_params(conditions.dup) | ||
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@case_insensitive_keys.each do |k| | ||
value = conditions[k] | ||
next unless value.respond_to?(:downcase) | ||
conditions[k] = value.downcase | ||
end | ||
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@strip_whitespace_keys.each do |k| | ||
value = conditions[k] | ||
next unless value.respond_to?(:strip) | ||
conditions[k] = value.strip | ||
end | ||
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conditions | ||
end | ||
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# Force keys to be string to avoid injection on mongoid related database. | ||
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 | ||
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private | ||
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# Determine which values should be transformed to string or passed as-is to the query builder underneath | ||
def param_requires_string_conversion?(value) | ||
true unless value.is_a?(TrueClass) || value.is_a?(FalseClass) || value.is_a?(Fixnum) | ||
end | ||
end | ||
end |
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