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Contents
module ActiveAdmin
module ViewHelpers
module FormHelper
# Flatten a params Hash to an array of fields.
#
# @param params [Hash]
# @param options [Hash] :namespace and :except
#
# @return [Array] of [Hash] with one element.
#
# @example
# fields_for_params(scope: "all", users: ["greg"])
# => [ {"scope" => "all"} , {"users[]" => "greg"} ]
#
def fields_for_params(params, options = {})
namespace = options[:namespace]
except = Array.wrap(options[:except]).map &:to_s
params.flat_map do |k, v|
next if namespace.nil? && %w(controller action commit utf8).include?(k.to_s)
next if except.include?(k.to_s)
if namespace
k = "#{namespace}[#{k}]"
end
case v
when String
{ k => v }
when Symbol
{ k => v.to_s }
when Hash
fields_for_params(v, namespace: k)
when Array
v.map do |v|
{ "#{k}[]" => v }
end
when nil
{ k => "" }
when TrueClass, FalseClass
{ k => v }
else
raise "I don't know what to do with #{v.class} params: #{v.inspect}"
end
end.compact
end
end
end
end
Version data entries
4 entries across 4 versions & 2 rubygems