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Parsing behavior change from foo[] to "foo" => [] #1697

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Parsing behavior change from foo[] to "foo" => [] #1697

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2 changes: 1 addition & 1 deletion lib/rack/query_parser.rb
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Expand Up @@ -102,7 +102,7 @@ def normalize_params(params, name, v, depth)
elsif after == "[]"
params[k] ||= []
raise ParameterTypeError, "expected Array (got #{params[k].class.name}) for param `#{k}'" unless params[k].is_a?(Array)
params[k] << v
params[k] << v unless v.nil?
elsif after =~ %r(^\[\]\[([^\[\]]+)\]$) || after =~ %r(^\[\](.+)$)
child_key = $1
params[k] ||= []
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4 changes: 2 additions & 2 deletions test/spec_utils.rb
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Expand Up @@ -162,7 +162,7 @@ def assert_nested_query(exp, act)
must_equal "pid=1234" => "1023", "a" => "b"

Rack::Utils.parse_nested_query("foo[]").
must_equal "foo" => [nil]
must_equal "foo" => []
Rack::Utils.parse_nested_query("foo[]=").
must_equal "foo" => [""]
Rack::Utils.parse_nested_query("foo[]=bar").
Expand All @@ -174,7 +174,7 @@ def assert_nested_query(exp, act)
Rack::Utils.parse_nested_query("foo[]=bar&foo[=baz").
must_equal "foo" => ["bar"], "foo[" => "baz"
Rack::Utils.parse_nested_query("foo[]=bar&foo[]").
must_equal "foo" => ["bar", nil]
must_equal "foo" => ["bar"]
Rack::Utils.parse_nested_query("foo[]=bar&foo[]=").
must_equal "foo" => ["bar", ""]

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