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[this is not a Multisite question]

Update: this question is a logical impossibility, or a mind loop if you will, check update bellow.

The technique is laid out here in WPEngineer.
It allows having a single plugins folder to serve many WordPress sites running in the same server.

So, all my development sites have this in wp-config.php

define( 'WP_PLUGIN_DIR', '/www_dev/base-site/wp-content/plugins' );
define( 'WP_PLUGIN_URL', 'http://base-site.dev/wp-content/plugins');

Only the base-site has a plugins folder and don't have this constants set in its wp-config.

I found a situation where I am in other-site.dev and the plugin tries to call base-site.dev, as follows:

  • the plugin in question is Advanced Custom Fields, but I guess it can happen in any other
  • the Export XML function of the plugin calls this address http://base-site.dev/wp-content/plugins/advanced-custom-fields/core/actions/export.php
  • in theory, it should be http://other-site.dev/wp-content/plugins/advanced-custom-fields/core/actions/export.php, but this address doesn't exist

The plugin builds the form action that executes the export function using this variable $this->dir = plugins_url('',__FILE__);

The question is: could we make an htaccess rule or apply a filter to overcome this issue?

[update]

After anmari input and taking a closer look, I think there's no solution for this.
The plugins_url uses WP_PLUGIN_URL.

The plugin is rendering the following html:
<form action="http://base-site.dev/wp-content/plugins/advanced-custom-fields/core/actions/export.php" method="post">

and there is no, and never will be, anything like:
<form action="http://other-site.dev/wp-content/plugins/advanced-custom-fields/core/actions/export.php" method="post">

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1 Answer

up vote 1 down vote accepted

I guess what you are saying is that it then 'exports' the wrong system's xml (I'm not familiar with the plugin) ?

Ideally the plugin itself should be including/using the code rather in such a way so that it still knows the context/system in which it is being used irrespective of where the code is stored.

Have you tried seeing if the plugin author can update the plugin code rather ? Or perhaps getting someone to look at the code and offer a fix for it.

That would be a better solution rather than messing with htaccess.

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Thanks for your kindly input, anmari. I've updated my question, but I think the essence is: no, this will never work. Cheers and thanks again for dropping by :) –  brasofilo May 18 '12 at 10:57
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