instance method
fetch_values
Ruby on Rails edge
Since edgeSignature
fetch_values(*keys)Returns parameters for the given keys. If a key can’t be found, there are several options: With no other arguments, it will raise an ActionController::ParameterMissing error; if a block is given, then that will be run and its result returned for the missing key.
params = ActionController::Parameters.new(name: "Francesco", age: 22)
params.fetch_values(:name, :age) # => ["Francesco", 22]
params.fetch_values(:name, :none) # => ActionController::ParameterMissing: param is missing or the value is empty or invalid: none
params.fetch_values(:name, :none) { |key| key } # => ["Francesco", :none]
Parameters
-
keysrest
Source
# File actionpack/lib/action_controller/metal/strong_parameters.rb, line 848
def fetch_values(*keys)
original_key_lookup = keys.index_by { |key| key.to_s }
values = @parameters.fetch_values(*keys) do |missing_key|
original_key = original_key_lookup[missing_key]
if block_given?
yield original_key
else
raise ActionController::ParameterMissing.new(original_key, @parameters.keys)
end
end
values.map! { |value| convert_value_to_parameters(value) }
end
Defined in actionpack/lib/action_controller/metal/strong_parameters.rb line 848
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Defined in ActionController::Parameters