Drupal for Facebook ------------------- More information: http://www.drupalforfacebook.org, http://drupal.org/project/fb Primary author and maintainer: Dave Cohen (http://www.dave-cohen.com/contact) Branch: HEAD (version 2.x for Drupal 6.x) Detailed documentation is available online http://drupal.org/node/195035. This file is probably more recent than the online documentation! If upgrading from a previous dev build or version, read the upgrade instructions: http://drupal.org/node/761886 To install: - Make sure you have an up-to-date PHP client from facebook. You may download a tarball, http://svn.facebook.com/svnroot/platform/clients/packages/facebook-platform.tar.gz, or do this with subversion: svn co http://svn.facebook.com/svnroot/platform/clients/php/trunk - If you extract facebook-platform.tar.gz into your modules/fb directory, it should be found automatically. If this is not the case, set a drupal variable, 'fb_api_file', to the location of facebook.php. For example, if you checked the libs out of subversion, add $conf['fb_api_file'] = 'sites/all/modules/fb/facebook-platform/facebook.php'; near the end of your settings.php. If you downloaded the bundle, this might work: $conf['fb_api_file'] = 'sites/all/modules/fb/facebook-platform/php/facebook.php'; Customize the path above as needed for your installation. - If you intend to support canvas pages, install a Facebook-aware theme into one of Drupal's themes directories. One example theme is provided in the 'themes' directory of this module, but Drupal will not find it there. So, you must copy the entire theme directory to sites/all/themes, or another of Drupal's themes directories. Use a symbolic link, rather than copy, if you intend to make no changes and you want updates to be easier. Visit Site Building >> Themes so that Drupal will detect the new theme. - If using Facebook Connect, your theme needs the following attribute in it's tag: xmlns:fb="http://www.facebook.com/2008/fbml" See http://www.drupalforfacebook.org/node/1106. This also applies to themes used for iframe canvas pages. - Edit your settings.php file (sites/default/settings.php, depending on your install) to include fb_settings.inc (in this directory). For example, add this at the very end of your settings.php: require_once "sites/all/modules/fb/fb_settings.inc"; (Or whatever path is appropriate, could be "profiles/custom/modules/fb/fb_settings.inc") See the end of this file for other configuration you may add to settings.php. - Go to Administer >> Site Building >> Modules and enable the Facebook modules. Most of the modules under "Drupal for Facebook" should be enabled. During development, the "Drupal for Facebook Devel" module is a must. - You must enable clean URLs. If you don't, some links that drupal creates will not work properly on canvas pages. - Create an application on Facebook, currently at http://www.facebook.com/developers/editapp.php?new. Fill in the minimum required to get an apikey and secret. If supporting canvas pages, get a canvas name, too. - Go to Administer >> Site Building >> Facebook Applications and click the Add Applicaiton tab. Use the apikey and secret that Facebook has shown you. If you have any trouble with the other fields, use Facebook's documentation to figure it out. When you submit your changes, Drupal for Facebook will automatically set the callback URL and some other properties which help it work properly. Troubleshooting: --------------- Reread this file and follow instructions carefully. Enable the devel module, http://drupal.org/project/devel. Enable the "Drupal for Facebook Devel" module and add the block it provides to the footer of your Facebook theme. If you see FBML Error (line 62): illegal tag "body" under "fb:canvas", or many "CSS Errors", visit Administer >> Site Building >> Themes. Make sure you see fb_fbml in the list. Enable the fb_fbml theme. If you _still_ see CSS Errors or HTML Errors, most likely the fb_fbml theme is still not being used. This can happen if the theme is initialized before fb.module is initialized. To avoid this, don't have any code that initializes a theme at the top level of your .module files, put that code in hook_init instead. And if still necessary, lower the weight of the fb module in your system table. See http://drupal.org/node/187868 If you see "The page you requested was not found." Make sure the canvas page you specified agrees exactly with the canvas page assigned by facebook. Note also that facebook will make all letters lower case even if you typed them upper. The Facebook client libraries has bugs if you do not have the JSON extension for PHP installed, see http://us.php.net/manual/en/json.requirements.php. And tell facebook their client libs suck at http://bugs.developers.facebook.com/show_bug.cgi?id=4351. Bug reports and feature requests may be submitted. Here's an idea: check the issue queue before you submit http://drupal.org/project/issues/fb If you do submit an issue, start the description with "I read the README.txt from start to finish," and you will get a faster, more thoughtful response. Seriously, prove that you read this far. Here is one way to set up your settings.php. Add the PHP shown below to the very end of your settings.php, and modify the paths accordingly (i.e. where I use "sites/all/modules/fb", you might use "profiles/custom/modules/fb").