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Question Can I display different content to different usergroups?
Answer Yes, you can achieve this by leveraging Tempcode within your templates. By using conditional statements like {$IS_IN_GROUP} and {$HAS_PRIVILEGE}, you can show or hide specific content sections based on the user's group membership or privileges. This technique allows you to "tease" premium content to non-paying users or tailor the user experience based on their access level.
Question What are match-key permissions and why would I use them?
Answer Match-key permissions provide a more granular level of access control beyond the standard zone, page, and category permissions. They allow you to restrict access based on specific "match-keys", which are unique identifiers for different actions or content within Composr. For instance, you could use match-key permissions to prevent guests from submitting banners or to restrict access to the member directory for all but specific usergroups. You can also specify custom access denied errors for each match-key.

A "match-key" is typically a page-link, such as cms:cms_banners:add.
Question How can I control who can view specific pages or categories?
Answer You can manage access control for zones, pages, and categories primarily through the Permissions Tree Editor (Admin Zone > Security > Permissions Tree Editor). This tool provides a central location to set view permissions for different usergroups. You can also edit individual zone and category permissions through their respective editing interfaces, but the Permissions Tree Editor offers a more streamlined and efficient approach.
Question What is the difference between access permissions and privileges in Composr?
Answer Access permissions control whether members of a certain usergroup can view specific areas of your site, such as zones, pages, and categories. A member only needs one of their usergroups to have access permission to view the content. But permissions work on a deny-first policy; if one of the permissions applicable to viewing something is denied for a usergroup, then the whole thing is denied for that usergroup (e.g. even if a download itself grants access, access will be denied if its category denies access).

Privileges, on the other hand, dictate what actions a usergroup is allowed to perform across the website, like using advanced Comcode or bypassing the word filter.
Question How can I change the news archive display to show summaries instead of just headlines?
Answer By default, the news archive screen shows only headlines. To display summaries like the news block, add :inline=1 to the page-link. For example, if your news archive page-link is site:news, modify it to site:news:inline=1. This will show summaries instead of just the headlines in the archive view.
Question What are Trackbacks and how do they work in Composr?
Answer Trackbacks are a blogging feature that creates a link from an article on one blog to an article on another, acting as a citation mechanism.

How Trackbacks Work:
  • The original article includes a "trackback" link in its HTML.
  • When another blogger writes an article referencing the original, their software uses the trackback link to inform the original site.
  • Composr receives the trackback and displays a list of articles linking back to the original.

To enable trackbacks, go to Admin Zone > Setup > Configuration > Feature options and check the "Trackbacks" option. You can then enable trackbacks for individual content items.
Question How can I filter the news archive to show specific content?
Answer The news system allows advanced filtering:
  • Blog vs. Non-Blog Posts: Choose to display blog posts only, regular news posts only, or both.
  • Category Filtering: Limit results to specific news categories.
  • Double Filtering: Apply a second category filter for a two-level categorization system (useful for large sites).

These filters are controlled through parameters passed to the news blocks and carried through navigation links. When viewing a news post, you can also filter by the categories associated with that post.
Question How do I display external RSS feeds on my Composr website?
Answer Composr offers two blocks for displaying RSS and Atom feeds in a news-like format:
  • main_rss block: Suitable for main content areas
  • side_rss block: Designed for sidebars and smaller spaces

To add a block, use the Block Construction Assistant or insert the following Comcode into your page:

[block="http://example.com/feed.xml"]main_rss[/block] [block="http://example.com/feed.xml"]side_rss[/block]
Replace "http://example.com/feed.xml" with the actual feed URL.

Important: Exercise caution when using external feeds. Ensure the source is trustworthy, as malicious feeds can contain harmful code.
Question What are RSS/Atom feeds and how do they benefit my website?
Answer Feeds, in formats like RSS and Atom, are XML files that syndicate your website content, making it accessible beyond your website. They can be viewed using feed reader applications (e.g., Feedly, Vienna) or integrated into other websites or web browsers.

Composr supports both RSS and Atom for syndicating news and other content. While RSS is more common, Atom is a cleaner, standardized format. Both effectively share your content updates.

Benefits:
  • Wider audience reach: Your content becomes accessible to those using feed readers and aggregators.
  • Content repurposing: Other websites can incorporate your feed, increasing visibility.
  • Increased traffic: Users discovering your content in feeds may visit your website directly.
  • Staying on top: Those who use your RSS feeds will see when you post new news articles.
Question What are Personal Categories/Blogs in Composr? How do I create one?
Answer Composr allows members of permitted usergroups to have their own personal news categories, also known as "blogs". These blogs appear as a tab on the member's profile (Conversr-only) and may also appear in the main news block depending on your configuration.

To create a blog, a member simply adds a news post and selects their personal category. If the category doesn't exist, it will be automatically created upon submission.

A dedicated "Blogs" CMS module (Admin Zone > Content > Blogs) is available if the "Separate blogs" configuration option is enabled. This simplified module focuses on blog posting and can be used to restrict members from submitting to general website news.

Top 10 Entries

Question What is the Composr Repository?
Answer The Composr repository is a user-friendly representation of Composr's data, which is typically stored in a database and on the filesystem. It presents the data in an easily accessible format using the JSON standard and can be accessed as a folder on your computer via WebDAV.
Question What is Commandr?
Answer Commandr is a command-line interface designed for experienced system administrators who prefer using a command line over a GUI. It supplements the Composr Admin Zone, allowing you to execute commands in the form of:
  • PHP code (prefix :)
  • SQL database queries (prefix @) (queries must be executed one at a time; semi-colon separation is not supported)
  • Shell commands (prefix #)
  • Commandr-code scripts (store in the Composr filesystem's bin directory, and just type the name of the script)
  • Commandr-code commands (no prefixes)

You can access Commandr via the Admin Zone > Tools > Commandr or using the Commandr button in the footer.
Question Are there alternative chat solutions that integrate with Composr?
Answer Yes, you can integrate third-party chat solutions with Composr. For example, CometChat is a commercial chat system that provides a Composr integration. You can also leverage video chat services like Talky, Jitsi, or appear.in by embedding links within your chat templates. For sales-chat needs, consider integrating a dedicated live chat platform like Comm100.
Question Are there any limitations to the Composr Chat system?
Answer While the Composr Chat system provides robust chat and IM features, it does have some limitations. Currently, it does not support video chat, sales-focused chat features, desktop app integration, or optimal performance for very high volumes of concurrent users. Additionally, it is only near real-time as Composr queries for new messages using AJAX at a set interval.
Question Are there any safety guidelines for younger users?
Answer It's crucial to emphasize safety, especially for younger users. Encourage them to follow these guidelines: never arrange to meet anyone from a chatroom in person, be cautious about sharing personal information, and report any suspicious behavior to moderators.
Question Can I download chat logs?
Answer Yes, you can download logs of any chat conversation. Simply navigate to the chatroom, click on the "Download chat logs" link, specify the desired date/time range, and the system will generate a downloadable log file for you.
Question How can I moderate the chatrooms?
Answer Composr offers a range of moderation features. Moderators can edit or delete messages, ban disruptive users, and delete entire chatrooms if necessary. Inline moderation links are available within chatrooms for quick actions, while the Admin Zone provides comprehensive moderation tools for managing chat content and user behavior.
Question What is Chatcode and how can I use it?
Answer Chatcode is a system of simple commands that you can embed within your chat messages to perform advanced actions. These actions include sending private messages to specific users within a chatroom, interacting with automated bots, sending chatroom invitations, and even creating new chatrooms.
Question How does the chat system work?
Answer The chat system utilizes AJAX technology, enabling dynamic updates without requiring page reloads. It includes a "Chat Lobby" where users can view available chatrooms and manage their friend lists for instant messaging. Users can join chatrooms to participate in group conversations or engage in private conversations with friends.
Question What is the Composr Chat system?
Answer Composr Chat is a feature built into the Composr CMS that provides both chatrooms and instant messaging capabilities. It offers real-time, text-based communication for users on your website.