Very simple form
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But very flexible
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Comparing Field type vs Decorator class
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Form can respond with manually generated error
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..or success message
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Any other view can be output
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jsAction can be used too
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Form handles errors (PHP 7.0+)

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Form handles random output

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Form shows Agile exceptions

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Modal Test
Conditional response
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Shows example of grouping and multiple errors

Example fields added one-by-one

Example of field grouping

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