Teach #from_hash to raise TypeError when argument is not a Hash #203
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Signed-off-by: Alex Coles <alex@alexbcoles.com>
Signed-off-by: Alex Coles <alex@alexbcoles.com>
myabc
commented
Nov 16, 2016
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| def from_hash(data, options={}, binding_builder=Binding) | ||
| data = filter_wrap(data, options) | ||
| raise TypeError, "Expected Hash, got #{data.class}." unless ::Hash === data |
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@apotonick could rely on duck typing here (unless data.respond_to?(:has_key?), but I think this approach is probably safer.
myabc
commented
Nov 16, 2016
| band.from_hash({"name"=>"Social Distortion"}, wrap: false).name.must_equal "Social Distortion" | ||
| band.from_hash({band: {"name"=>"Social Distortion"}}, wrap: :band).name.must_equal "Social Distortion" | ||
| band.from_hash({"name"=>"Bad Religion"}, wrap: false).name.must_equal "Bad Religion" | ||
| band.from_hash({"band"=>{"name"=>"Pennywise"}}, wrap: :band).name.must_equal "Pennywise" |
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@apotonick as long as filter_wrap_for calls #to_s on wrap (and we don't mix in AllowSymbols), this is necessary.
Signed-off-by: Alex Coles <alex@alexbcoles.com>
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myabc
commented
Nov 16, 2016
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| def from_hash(data, options={}, binding_builder=Binding) | ||
| data = filter_wrap(data, options) | ||
| data = [data] if ::Hash === data |
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@apotonick this makes #from_hash more lenient - accepting a single Hash for a collection. I'm not sure if this is desirable.
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@apotonick An alternative would be for
#from_hashto fail silently (i.e.data = {} unless ::Hash === data). However, I think raising aTypeErrormakes more sense in a web application context. it allows theOperationor web framework Controller to rescueTypeErrorand return a400to the client.