Form action always inherits parent extension
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Key: WW-3193
URL: https://issues.apache.org/struts/browse/WW-3193
Project: Struts 2
Issue Type: Improvement
Affects Versions: 2.1.7
Reporter: Jasper Rosenberg
Priority: Minor
Here is the basic issue. I have an url that has no extension, eg.
/Overview-Mustang-c1234
On that page, I have a form tag that I want to have submit to action
"changeCar.action", and so the "action" attribute is set to "changeCar".
This used to work. However, task
https://issues.apache.org/struts/browse/WW-2267 changed the behavior so that
the form's action gets the parent mapping's extension
[DefaultActionMapper.getUriFromActionMapping() called from
ServletUrlRenderer.renderFormUrl()], in this case the empty string, so the
generated action ends up as just "changeCar" rather than "changeCar.action"
Because we have some special handling for our mappings, this url ends up as a
404. It just doesn't seem desirable in general however that the same form
included on different pages with different extensions will generate posts to
two differently named urls.
I understand the concept behind this change, but I wonder if it would be safer
to revert it, and instead add support for an attribute on the form which is
"extension" which if present overrides the default, but otherwise the default
is used. Alternatively, it could be an mutli-value such as "inherit" (new
behavior), "default" (old behavior), or ".ext" (a specific extension). With
the default value being "default" so as to maintain backwards compatibility to
the 2.0 branch.
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