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| author | Andrew White <andyw@pixeltrix.co.uk> | 2012-05-02 23:42:43 +0100 |
|---|---|---|
| committer | Andrew White <andyw@pixeltrix.co.uk> | 2012-05-03 00:00:19 +0100 |
| commit | 7c7fb3a862651d87c4071e40a1799b973f626b11 (patch) | |
| tree | 22a7fbb277f5be046dda426e69497ed4d17e627b /railties/guides/source/kindle | |
| parent | ebe994f83c717f8ef25dc54490e13bc0dd048188 (diff) | |
| download | rails-7c7fb3a862651d87c4071e40a1799b973f626b11.tar.gz rails-7c7fb3a862651d87c4071e40a1799b973f626b11.tar.bz2 rails-7c7fb3a862651d87c4071e40a1799b973f626b11.zip | |
Reset the request parameters after a constraints check
A callable object passed as a constraint for a route may access the request
parameters as part of its check. This causes the combined parameters hash
to be cached in the environment hash. If the constraint fails then any subsequent
access of the request parameters will be against that stale hash.
To fix this we delete the cache after every call to `matches?`. This may have a
negative performance impact if the contraint wraps a large number of routes as the
parameters hash is built by merging GET, POST and path parameters.
Fixes #2510.
(cherry picked from commit 56030506563352944fed12a6bb4793bb2462094b)
Diffstat (limited to 'railties/guides/source/kindle')
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