Featured Sites: A-Z Index

H


Newest 10 Entries

Question What is rate limiting and how can I enable it in Composr?
Answer Rate limiting prevents server overload by restricting the number of requests allowed from a single IP address within a specific timeframe. To enable Composr's built-in rate limiting, add the following to your _config.php file:

Code (PHP)

$SITE_INFO['rate_limiting'] = '1';
$SITE_INFO['rate_limit_time_window'] = '10';
$SITE_INFO['rate_limit_hits_per_window'] = '5';
 

This configuration limits each IP to 5 requests every 10 seconds. This feature generates soft errors early in the process before Composr fully loads.
Question How can I reduce disk activity to improve performance?
Answer If your hard disk is slow, you can implement the following settings in your _config.php file to minimize disk access:
  • $SITE_INFO['disable_smart_decaching'] = '1';
  • $SITE_INFO['no_disk_sanity_checks'] = '1';
  • $SITE_INFO['hardcode_common_module_zones'] = '1';
  • $SITE_INFO['prefer_direct_code_call'] = '1';
  • $SITE_INFO['charset'] = 'utf-8';
  • $SITE_INFO['known_suexec'] = '1';
  • $SITE_INFO['dev_mode'] = '0';
  • $SITE_INFO['no_extra_logs'] = '1';
  • $SITE_INFO['no_extra_bots'] = '1';
  • $SITE_INFO['no_extra_closed_file'] = '1';
  • $SITE_INFO['no_installer_checks'] = '1';
  • $SITE_INFO['assume_full_mobile_support'] = '1';
  • $SITE_INFO['no_extra_mobiles'] = '1';

Note: These settings override default behaviors and may have unintended consequences. Use with caution.
Question What is static caching and how do I enable it?
Answer Static caching drastically improves performance by serving pre-generated pages to bots and guests. This works because these users typically don't require dynamic content. To enable it:
  • Go to the Installation Options editor (yourbaseurl/config_editor.php). You will need your maintenance password.
  • Activate the static cache option.

Composr intelligently determines what to cache, and you can further control this via options within the Installation Options. Be aware that enabling static caching may disable eCommerce features for guests unless specifically configured.
Question What are Composr caches and how do they improve website performance?
Answer Composr utilizes various types of caches to enhance performance by storing pre-calculated results and reducing repetitive tasks. These caches include:
  • Language cache: Eliminates the need to parse language files on each page load.
  • Template cache: Avoids reparsing template files repeatedly.
  • Comcode page cache & Comcode cache: Reduces the need to parse Comcode pages and general Comcode usage.
  • Block cache: Caches blocks based on their parameters, minimizing execution.
  • Theme image cache: Prevents redundant searches for theme images.
  • Values caches: Stores calculated values like member post counts.
  • Persistent cache: Keeps frequently used data in memory for faster access.
  • Advanced admin cache: Allows admins to view cached pages while the server generates updates.
  • Static cache: Serves static pages to bots and guests, bypassing much of the framework.
  • Self learning cache: Optimizes resource loading by learning which resources each page requires.
Question How can I troubleshoot notification problems?
Answer If you're having issues with notifications, here are some troubleshooting steps:
  • Check Email Logs: View the email log (Admin Zone > Audit > E-mail queue/log) to see what notifications have been sent.
  • Use the SU Feature: Impersonate a member using the SU feature (described in the "Testing access and privileges" tutorial) to view their notification settings and confirm they are set up correctly.
  • Enable Carbon-copy Email: Configure a "Carbon-copy e-mail address" in the configuration settings to receive copies of all outgoing emails, including notifications. This helps you monitor email delivery.
  • Verify System Scheduler: Ensure the system scheduler is configured correctly if members are not receiving digest emails.
  • Check Digest Settings: Confirm that "Enable digest notifications" is enabled in the Messages configuration settings.
  • Review "Safety listing limit": If a notification has too many categories, members might not see the full selection tree. Adjust the "Safety listing limit" in the configuration settings if necessary.
Question Can I control which notifications members receive?
Answer Yes, you can control notification settings through two mechanisms:
  • Notification Defaults: You can set default notification preferences for all members. You can enable or disable specific notifications and choose the delivery method (Admin Zone > Setup > Notification defaults).
  • Notification Lock-down: You can force members to receive or prevent them from receiving certain notifications (Admin Zone > Setup > Notification lock-down). This allows you to enforce specific notification policies and manage email volume.
Question What notification options are available to members?
Answer Members can choose from a wide range of notifications, including:
  • Content Updates: Notifications for new or updated content, such as news articles, forum posts, and gallery images.
  • Private Messages: Alerts for new private messages received.
  • Friend Requests: Notifications for new friend requests.
  • Administrative Actions: Alerts for actions taken by site administrators, such as account approvals or content moderation decisions.

Members can choose to receive notifications via:
  • Email: Notifications sent directly to their email address.
  • Digest Email: Combined summaries of activity sent in batched emails. This requires the system scheduler and the digest e-mails configuration option to be enabled.
  • Private Topics: Notifications delivered as private forum topics.
  • SMS: Notifications sent as text messages (requires configuration and incurs costs).
  • Web Notifications: Real-time alerts displayed within the Composr interface.
Question Can I share content like news and banners across the M.S.N.?
Answer Yes, you can share news by placing it on the central site and using RSS blocks on satellite sites to display it. Banners can be shared by adding them to the central site and configuring satellite sites to use the central site's banner.php script.
Question What should I consider when managing usergroups for subcommunities?
Answer
  • Rank ladders: Use the default rank ladder for main site ranks and secondary usergroups for subcommunity memberships.
  • New member status: Set default usergroups for new members to grant them initial access while allowing removal if necessary.
  • Leadership: Assign leaders to usergroups to allow members to manage subcommunities.
  • Clubs: Consider using Clubs for member-driven subcommunities with their own forums.
Question What are Composr Clubs and how are they useful for subcommunities?
Answer Clubs are special usergroups in Conversr (Composr's forum system) designed for creating subcommunities. They come with their own dedicated forums and are managed by members, taking pressure off site staff.

Key features:
  • No special permissions by default, simplifying permission management.
  • Members can join and leave like regular usergroups.
  • Provide a dedicated forum for the club.

Top 10 Entries

Question Can I use the calendar as a personal diary and keep my entries private?
Answer Yes. When adding an event to the calendar, you can choose to make it public or private. Private events are generally used when someone wants to use the calendar system as a diary.
Question How can I set up reminders for events?
Answer When adding or editing an event, you can enable reminders for yourself and specific user groups. You can also choose how much notice you want for each reminder.

Members can subscribe for reminders on an individual event screen. They can also personalize their reminder settings, including removing reminders or having multiple reminders at different times.

Members can also subscribe for notifications to specific event types to be notified whenever events under those types are scheduled.
Question How can I schedule Commandr commands to run automatically?
Answer To schedule commands, create an event with the "System command" event type. This option needs to be enabled in the configuration first. In the event details, you can specify either a URL for Composr to call or a snippet of Commandr code to execute. Be sure to disable the WYSIWYG editor for this type of event. You'll also need to have the system scheduler configured for the commands to run automatically.
Question Can I add external feeds to the calendar?
Answer Yes, you can add RSS or Atom feeds to your calendar. This lets you view time-based information from external sources alongside your calendar events.
Question What do I do if a recurring event needs to be changed or skipped?
Answer Composr has a "fixing an event" feature to handle changes to recurring events. This is useful if an event needs to be cancelled or rescheduled. You edit the event as if it were a new, standalone event and choose the "Edit with fixing past recurrences" option. This separates the past occurrences from the modified event, ensuring future recurrences reflect the changes.
Question What is the "recurrence pattern" and how does it work?
Answer The recurrence pattern is a powerful tool that defines how often an event repeats. While it might seem complex at first, it provides a lot of flexibility. Think of it as a binary code where each digit represents a time period (like a day or week). A "1" indicates the event occurs, and a "0" means it doesn't. This lets you create complex schedules like "every weekday" (daily with pattern 1111100 if it starts on a Monday) or "every other Tuesday" (weekly on Tuesday with the pattern 10).
Question What are the different views available in the calendar?
Answer The calendar has five views:
  • Year view: Displays an overview of the entire year.
  • Month view: Shows events within a specific month.
  • Week view: Displays events for a selected week.
  • Day view: Shows events scheduled for a specific day.
  • Event view: Displays the details of a single event.

You can easily navigate between these views to get different levels of detail and focus on specific periods or events.
Question How do I add events to the calendar?
Answer You can add events in several ways:
  • Through the Admin Zone or Content Management Zone: Go to Admin Zone > Content > Calendar.
  • Directly on the calendar: Click on a date box on the calendar view.
  • Using the "Add Event" button on any calendar view.

Deleting events can be done at the bottom of the event's edit form. You have options for recurring events, such as editing/deleting the specific occurrence, editing/deleting future ones, or all of them.
Question How do I categorize events?
Answer You categorize events using "Event types". Composr provides default types like "Anniversary", "Appointment", "Birthday", "General", "Public Holiday", "Task", "Vacation", and the special "System command" for executing Commandr commands. You can also add your own custom event types to suit your specific needs, such as "Appraisal Session" for a business website.
Question What is an "event" in the Composr calendar system?
Answer An event is any entry in the calendar. Importantly, an event isn't limited to a single point or range in time. Events can recur based on a schedule you define. This makes them very flexible – they can represent anything from one-time appointments to recurring birthdays or even weekly team practices.