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POHow can I introduce a regex action to match the first element in a Catalyst URI?
 

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  1. POHow can I introduce a regex action to match the first element in a Catalyst URI?
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    <p><strong>Background:</strong></p> <p>I'm using a CRUD framework in Catalyst that auto-generates forms and lists for all tables in a given database. For example: /admin/list/person or /admin/add/person or /admin/edit/person/3 all dynamically generate pages or forms as appropriate for the table 'person'. (In other words, Admin.pm has actions edit, list, add, delete and so on that expect a table argument and possibly a row-identifying argument.)</p> <p><strong>Question:</strong></p> <p>In the particular application I'm building, the database will be used by multiple customers, so I want to introduce a URI scheme where the first element is the customer's identifier, followed by the administrative action/table etc:</p> <ul> <li>/cust1/admin/list/person</li> <li>/cust2/admin/add/person</li> <li>/cust2/admin/edit/person/3</li> </ul> <p>This is for "branding" purposes, and also to ensure that bookmarks or URLs passed from one user to another do the expected thing.</p> <p>But I'm having a lot of trouble getting this to work. I would prefer not to have to modify the subs in the existing framework, so I've been trying variations on the following:</p> <pre><code>sub customer : Regex('^(\w+)/(admin)$') { my ($self, $c, @args) = @_; #validation of captured arg snipped.. my $path = join('/', 'admin', @args); $c-&gt;request-&gt;path($path); $c-&gt;dispatcher-&gt;prepare_action($c); $c-&gt;forward($c-&gt;action, $c-&gt;req-&gt;args); } </code></pre> <p>But it just will not behave. I've used regex matching actions many times, but putting one in the very first 'barrel' of a URI seems unusually traumatic. Any suggestions gratefully received.</p>
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    1. COThis is not a question about regular expressions per se, hence I've removed the regex tag added by an Editor.
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    2. COIn your example, the regex will not match because of the first `/` in the uris -- the `^\w` will not match in that case. `sub customer : Regex('^(\w+)/(admin)$') {`
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    3. COThat is not how Catalyst Regex actions work. The example above is in the Root (empty namespace) controller, so the leading slash is not relevant.
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