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Package TWiki::OopsException

Exception used to raise a request to redirect to an Oops URL.

An OopsException thrown anywhere in the code will redirect the browser to a url based on the oops script. oops requires the name of an oops template file from the templates directory. This file will be expanded and the parameter values passed to the exception instantiated. The result will be shown in the browser.

Plugins may throw TWiki::OopsException. For example:

use Error;

...

throw TWiki::OopsException( 'bathplugin',
                            def => 'toestuck',
                            web => $web,
                            topic => $topic,
                            params => [ 'bigtoe', 'hot tap' ] );


%TOC%

---++ ClassMethod *new* <tt>($template,...)</tt>
   * =template= is the name of an oops template. e.g. 'bathplugin' refers to =templates/oopsbathplugin.tmpl=
The remaining parameters are interpreted as key-value pairs. The following keys are used:
   * =web= will be used as the web for the oops
   * =topic= will be used as the topic for the oops
   * =def= - is the (optional) name of a TMPL:DEF within the template
   * =keep= - if set, the exception handler should try its damnedest to retain parameter values from the query.
   * =params= is a reference to an array of parameters. These will be substituted for !%PARAM1%, !%PARAM2% ... !%PARAMn% in the template.

For an example of how to use the =def= parameter, see the =oopsattention=
template.

NOTE: parameter values are automatically and unconditionally entity-encoded



---++ ObjectMethod *stringify* <tt>([$session]) -> $string</tt>

Generates a string representation for the object. if a session is passed in,
and the exception specifies a def, then that def is expanded. This is to allow
internal expansion of oops exceptions for example when performing bulk
operations, and also for debugging.



---++ ObjectMethod *redirect* <tt>($twiki)</tt>

Generate a redirect to an 'oops' script for this exception.

If the 'keep' parameter is set in the
exception, it saves parameter values into the query as well. This is needed
if the query string might get lost during a passthrough, due to a POST
being redirected to a GET.


Topic revision: r3 - 2008-01-22 - TWikiContributor
 
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