Created
December 18, 2012 11:49
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def normalize_params(params, name, v = nil) | |
name =~ %r(\A[\[\]]*([^\[\]]+)\]*) | |
k = $1 || '' | |
after = $' || '' | |
return if k.empty? | |
if after == "" | |
params[k] = v | |
elsif after == "[]" | |
params[k] ||= [] | |
raise TypeError, "expected Array (got #{params[k].class.name}) for param `#{k}'" unless params[k].is_a?(Array) | |
params[k] << v | |
elsif after =~ %r(^\[\]\[([^\[\]]+)\]$) || after =~ %r(^\[\](.+)$) | |
child_key = $1 | |
params[k] ||= [] | |
raise TypeError, "expected Array (got #{params[k].class.name}) for param `#{k}'" unless params[k].is_a?(Array) | |
if params_hash_type?(params[k].last) && !params[k].last.key?(child_key) | |
normalize_params(params[k].last, child_key, v) | |
else | |
params[k] << normalize_params(params.class.new, child_key, v) | |
end | |
else | |
params[k] ||= params.class.new | |
raise TypeError, "expected Hash (got #{params[k].class.name}) for param `#{k}'" unless params_hash_type?(params[k]) | |
params[k] = normalize_params(params[k], after, v) | |
end | |
return params | |
end |
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