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29 lines
840 B
Markdown
29 lines
840 B
Markdown
# Cast Common Boolean-Like Values To Booleans
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Sometimes you have to deal with values that are supposed to represent booleans,
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but they aren't actually boolean values (i.e. `"t"` instead of `true`). Rail's
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`ActiveModel` has a helper for casting these common boolean-like values to
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actual booleans.
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```ruby
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> ActiveModel::Type::Boolean.new.cast('f')
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=> false
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> ActiveModel::Type::Boolean.new.cast('t')
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=> true
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> ActiveModel::Type::Boolean.new.cast('true')
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=> true
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> ActiveModel::Type::Boolean.new.cast('FALSE')
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=> false
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> ActiveModel::Type::Boolean.new.cast(0)
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=> false
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> ActiveModel::Type::Boolean.new.cast(1)
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=> true
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> ActiveModel::Type::Boolean.new.cast(true)
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=> true
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> ActiveModel::Type::Boolean.new.cast(false)
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=> false
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```
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This cast method gives you a handy way to handle all thsoe different cases.
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This is available as of Rails 5+.
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