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Question How do I set up the system scheduler in Composr?
Answer The system scheduler is crucial for scheduled tasks like sending notifications, running backups, and processing reports. To set it up, you need to schedule a system-level task to run the data/cron_bridge.php file at least every 10 minutes. This links Composr's scheduler with your server's scheduler (like Cron on Linux).

Composr can often detect the correct command to use for your setup. You can check by visiting http://yourbaseurl/data/cron_bridge.php?query_mode=1, which should display the suggested Cron command. Note that you may need to replace the php command with the absolute path to PHP if you cannot use the php command directly.

If your hosting doesn't support Cron or scheduled tasks, you can enable scheduled tasks to run when visitors access your site. Navigate to Admin Zone > Setup > Configuration > Performance options and check "Web requests run scheduled tasks". Keep in mind that this method relies on visitor traffic and isn't as reliable as a dedicated scheduler.

Alternatively, consider using external services like EasyCron, setcronjob.com, or onlinecronjobs.com. These services allow you to schedule calls to the data/cron_bridge.php script by URL at specified intervals.
Question What are the different security levels in Composr's Setup Wizard and what do they affect?
Answer Composr offers five security levels in the Setup Wizard: Minimum, Low, Medium, High, and Ultra High. Each level sets various security configurations that you can later customize under Admin Zone > Setup > Configuration.

The security levels influence settings such as:

  • Content Security Policy
  • Session expiry time
  • Password reset process
  • Password expiry days
  • Minimum password length and strength
  • Login error secrecy
  • IP strictness for sessions
  • Cryptographic ratchet
  • CAPTCHA usage
  • Brute force threshold
  • Audio CAPTCHA
  • URL Monikers
  • .htaccess restrictions on maintenance scripts
  • Enquiry on new IP addresses

The higher the security level, the more stringent the security measures, with Ultra High offering the most robust protection but the most potential inconvenience to users.

Generally, you should use these settings depending on your site:
  • Minimum: Very bare-bones informational-only sites
  • Low: Sites which do not allow public registrations and do not use eCommerce but have content managed by different staff, and are not concerned with privacy or data
  • Medium: Sites with social features / public accounts but do not use eCommerce.
  • High: Sites which use eCommerce.
  • Ultra High: Sites containing very sensitive data, such as but not limited to cybersecurity sites, government departments, banks, healthcare, etc.
Question How do I change my website's logo?
Answer You can change your site's logo manually or by using the Logo Wizard. To change it manually, go to Admin Zone > Style > Themes. Choose "logo/-logo" from the dropdown list, which represents the logo for the Welcome Zone and any zone without a specific logo. Replace the current image by uploading a new .jpeg, .gif, or .png file. Ensure that the 'Name' field remains unchanged.
Question What are Composr addons and how do I manage them?
Answer Composr is built using a series of addons that provide different functionalities. All "bundled" addons are installed by default. Once you are familiar with Composr, it's recommended to remove any bundled addons you don't need to simplify your site and prevent accidental exposure of unconfigured features to visitors (the Setup Wizard can also uninstall these addons based on your preferences). You can manage addons by navigating to Admin Zone > Structure > Addons. Uninstalled addons are archived and can be restored later, but any associated data will be permanently lost.

Composr also offers non-bundled addons. These addons are not bundled because they are not considered mainstream, rely on third-party services, haven't been vetted to Composr standards, or don't fully conform to those standards.

You can install non-bundled addons by going to Admin Zone > Structure > Addons, scrolling to the bottom and clicking "Import non-bundled addon(s)". You will need to browse to the addon file and click the import button. Once imported, review the warnings and proceed to install the addon.

You can also download and import addons from this website under the Downloads section.
Question What are some of the default Comcode pages in Composr?
Answer Composr includes several default Comcode pages, each serving a specific purpose:

  • home (Welcome and Site zones): The default front pages for the respective zones.
  • sitemap (Welcome zone): Displays the sitemap, typically generated automatically.
  • _rules (Welcome zone): Outlines the site rules, also displayed during registration. The "rules" page (no underscore) is a wrapper for this page.
  • privacy (Welcome zone): Provides privacy policy information. By default, this is generated automatically with Composr's privacy policy generator block.
  • 404 (Welcome zone): The page shown for 404 errors (page not found) and includes a sitemap.
  • help (Site zone): Contains general help information.
  • userguide_comcode (Site zone): A basic guide to Comcode for users.

Remember that you can edit these default pages or create entirely new ones to tailor your site's content to your specific needs.
Question How do I hide a Comcode page from the sitemap?
Answer If you want to prevent a Comcode page from appearing in your sitemap, you can simply prefix its name with an underscore (_). For example, pages named "_test" or "_example" would be excluded from the sitemap. Note that this generally does not hide the page from your site itself (to do that, use the validation addon to turn validated to "OFF" for the pages); it only hides them from the sitemap / search engines.
Question Can I organize Comcode pages in a hierarchical structure?
Answer Yes, Composr allows you to simulate a hierarchical structure for your Comcode pages using multi-part paths in the page monikers. By editing the page monikers to include slashes (e.g., "about/team"), you can create a virtual directory structure within a single zone, enhancing your site's organization and navigation.
Question How do I embed content from other modules into a Comcode page?
Answer You can use various blocks to embed content from different modules:

  • main_content block: Allows you to feature individual entries from modules/content like news or articles.
  • main_multi_content, main_cc_embed, main_gallery_embed, main_news blocks: Enable you to pull in and display multiple entries based on categories or other criteria.
  • main_include_module block: Provides a powerful way to integrate any module screen directly into a Comcode page.
Question What is the difference between blocks and boxes in Composr?
Answer While both terms may seem similar, they have distinct meanings in Composr:
  • Blocks are functional units that generate dynamic content or provide specific features. They don't inherently have a visual form and their output can vary widely.
  • Boxes are a visual design element in Composr, essentially containers that visually group content on a page and often with a title at the top.

In practice, blocks often place their content within a box, but this isn't a requirement / standard.
Question Can I customize the appearance of blocks?
Answer Yes, you can customize the appearance of blocks by editing the associated templates and CSS. Each block typically has a corresponding template file (e.g., BLOCK_MAIN_NEWS.tpl for the main_news block) that controls its HTML structure. You can modify this template to change the layout and styling of the block's output.

An easy way to do this is through the template editor in Admin Zone > Style > Themes, and click edit templates for the relevant theme.

Top 10 Entries

Question How do I set up the forum base URL correctly?
Answer The forum base URL should be a URL prefix to your forums without a script name. For example, http://forums.example.com is correct, while http://forums.example.com/index.php is incorrect. You can fix this using the config_editor.php script and then clear the Comcode page cache.
Question How do comment topics work?
Answer Most Composr resources with commenting enabled create comment topics in the configured comment forum. If the forum uses BBCode, Comcode features not supported by BBCode may not display correctly. Moderate comments from the forum as you would any other topic.
Question Can I switch forums after installing Composr?
Answer It's not easy to switch forums after installing Composr. The member and usergroup IDs referenced by Composr would lose their association. Check the "Importing data into Composr" tutorial for more information on this.
Question What is Conversr and why is it recommended?
Answer Conversr is Composr's built-in forum system. It offers seamless integration, allowing you to use Comcode for forum posts, a unified Admin Zone, shared themes and templates, and innovative features like Private Topics and in-post whispers. Using a third-party forum can be clunky and may lead to maintenance headaches.
Question What forum drivers does Composr support?
Answer Composr supports several forum drivers, including Invision Board, phpBB, myBB, vBulletin, Burning Board, and Simple Machine Forum. If your forum is not listed, professional developers can add support. Composr also provides converters for migrating from these forums to its own forum system, Conversr.
Question What are the web server requirements for running Composr?
Answer Composr is compatible with Apache and IIS servers.

For Apache:
  • Enable mod_rewrite for URL Schemes or URL Redirects.
  • Ensure AllowOverride All or at least AllowOverride Options FileInfo Limit is set in the server configuration.
  • Recommended modules for optimal performance include mod_headers, mod_setenvif, mod_env, mod_deflate, and mod_filter.

For IIS:
  • Don't disable default Feature Delegation for settings changed in the bundled web.config file.
  • Install the URL Rewrite module, essential for URL Schemes, URL Redirects, and basic security.
  • Configure IIS for additional mime-types if needed, as it doesn't serve unrecognized file types by default.
Question What are the PHP requirements for running Composr?
Answer Composr requires PHP 7.2 or higher, but versions not officially supported by PHP developers are discouraged. The maximum tested version is PHP 8.3.

Required PHP extensions:
  • GD2 (gd) with PNG and JPEG support
  • MySQL extension (mysqli or pdo_mysql)
  • XML extension (xml)
  • Multibyte String (mbstring)
  • cURL extension (curl)
  • JSON support (usually available by default)
  • Sodium (libsodium)
  • ZIP extension (zip) if ZIP file support is needed

Additional recommendations:
  • posix extension for permission checks
  • zlib extension for faster upgrades, compressed backups, and page compression
  • ctype extension for slightly faster performance
  • IMAP extension (imap) for managing newsletter bounces
  • OpenSSL extension (openssl) for encrypted CPFs, DKIM, and SSL certificate expiry checks
  • Pspell (pspell) or Enchant (enchant) extensions for spell checking

Ensure the following PHP settings are configured:
  • File upload size limit of at least 5MB (or higher as needed)
  • Maximum execution time of at least 30 seconds
  • Memory limit of at least 128MB
  • The installer will warn you if any critical functions have been disabled via disable_functions or other PHP modifications. Avoid web hosts that heavily restrict standard PHP functionality.
Question How do I uninstall Composr?
Answer To uninstall Composr, access the uninstall.php file in your web browser, enter your administrator password, and follow the prompts to remove the database data. Afterward, you can safely delete the Composr installation directory.
Question What are the recommended web hosting options for Composr?
Answer Choosing a web host is crucial. Avoid the cheapest options and look for hosts with recent positive reviews and minimal credible complaints. Ensure they meet Composr's requirements, including adequate disk space, no restrictive file size limits, and support for required PHP extensions.

Composr is compatible with various hosting control panels like Plesk and cPanel, and works on Windows, Linux, or Mac OS servers.
Question Can I install Composr on a Windows desktop?
Answer Yes, you can install Composr on a Windows desktop using software packages like WampServer, XAMPP, EasyPHP, or ampps for simplified setup. Alternatively, you can manually install Apache, PHP, and MySQL, following the instructions provided in the respective documentation. Remember to configure file permissions appropriately and ensure the webserver isn't accessible from outside your network.