instance method
deep_transform_values
Ruby on Rails edge
Since edgeSignature
deep_transform_values(&block)Returns a new ActionController::Parameters instance with the results of running block once for every value. This includes the values from the root hash and from all nested hashes and arrays. The keys are unchanged.
The returned instance carries the same permitted status as the receiver, so the result still has to be filtered through permit / expect before being mass-assigned. Prefer this to to_unsafe_h.deep_transform_values, which discards the permitted/unpermitted distinction.
params = ActionController::Parameters.new(
user: { email: " ALICE@EXAMPLE.COM ", profile: { bio: " Hello world " } }
)
params.deep_transform_values { |v| v.is_a?(String) ? v.strip.downcase : v }
# => #<ActionController::Parameters {"user"=>{"email"=>"alice@example.com", "profile"=>{"bio"=>"hello world"}}} permitted: false>
Parameters
-
blockblock
Source
# File actionpack/lib/action_controller/metal/strong_parameters.rb, line 981
def deep_transform_values(&block)
new_instance_with_inherited_permitted_status(
_deep_transform_values_in_object(@parameters, &block)
)
end
Defined in actionpack/lib/action_controller/metal/strong_parameters.rb line 981
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Defined in ActionController::Parameters