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Allow Infinity to pass validates_numericality_of
This patch allows a getter method on a model to return infinity and still pass validates_numericality_of.
This patch has been running in a production app since January 2008.
Why is Infinity useful?
Ruby's Infinity (1.0/0.0) can be very useful when implementing "limits" in a model. For example a package for an account might have a page_limit specifying how many pages a user might be able to create. If you wish to support "unlimited" size packages you might allow page_limit to be stored as a NULL in the database, and have a getter method that returns Infinity when the attribute is nil. This allows you to use the attribute directly in comparisons and other kinds of basic math like "remaining pages" without needing conditional logic.
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numericality-of-infinity.diff
3.22 KB
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shuberSeems like it could be pretty useful in some situations.
Applied the patch, works as expected and all tests pass.
+1
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Gaius Centus Novus
+1 all tests pass; tests are easy to understand
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Lytol+1 Putting mathematical debates aside (since infinity is not a number), I can see the usefulness of this functionality. Tests pass... let's see what others have to say. With mathematical theory aside, a pretty clever solution. =)
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Chris Cherry- No changes were found…
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Repository
- State changed from new to resolved
- Tag set to patch, tiny, verified
(from [124d1016fa212c008e33853912493fa9ac15d086]) Allow Infinity (1.0/0.0) to pass validates_numericality_of. [#354 state:resolved]
Signed-off-by: Pratik Naik
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Repository
(from [d12660022525b9b1e25b92cd4639e32c8608f729]) Allow Infinity (1.0/0.0) to pass validates_numericality_of. [#354 state:resolved]
Signed-off-by: Pratik Naik