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Question How can I customize Composr without modifying the core files?
Answer Composr offers a robust override system. Instead of altering the original files, create a parallel structure within _custom directories. For example, to modify site/pages/modules/polls.php, place your customized version in site/pages/modules_custom/polls.php.

The tutorials outline additional information on how to utilise overrides.
Question What are the main components of the Composr framework?
Answer Composr consists of:
  • Modules: PHP files that provide related screens, forming the building blocks of addons.
  • Comcode: Text files containing content written in a simplified markup language.
  • HTML: Files containing standard HTML for web pages.
  • Sources: PHP code files for the core API and functionality.
  • Hooks: PHP files enabling addons to interact and extend each other's functionality.
  • Blocks/Miniblocks: Reusable components for displaying dynamic content within pages.
  • Themes: Folders containing images, CSS, and templates to define the look and feel.
  • Language files: Files holding text strings for multilingual support.
Question How can I embed third-party widgets into my Composr pages?
Answer Composr supports embedding widgets from various websites, like Google Maps, Vimeo, and YouTube, by simply pasting the URL. For manually embedding widget code, you can paste it into the HTML source view of the WYSIWYG editor or within Comcode html tags if not using the WYSIWYG editor.
Question What is the difference between blocks and boxes in Composr?
Answer Boxes are visual elements that provide a container for content, while blocks are functional units that generate and display dynamic content. Although blocks often appear within boxes in the default templates, they are not inherently tied to any visual representation.
Question Can I customize the appearance of blocks?
Answer Yes, you can style blocks by editing the associated templates and CSS. Templates are typically named after the block they represent. For example, the main_news block uses the BLOCK_MAIN_NEWS.tpl template.
Question How do I create custom filter forms for my content?
Answer The main_content_filtering block can help you generate filter forms automatically. You can use it to create a default form and then customize the generated Filtercode string to refine the filtering options. Once satisfied, you can either continue using the block or extract the HTML and modify it further.
Question Where can I use Filtercode and Selectcode in Composr?
Answer Filtercode is supported in various blocks, such as main_multi_content, main_gallery_embed, and main_cc_embed. It's also actively used in modules like catalogues, downloads, galleries, members, and news.

Selectcode is supported in blocks and Comcode tags that explicitly mention it, including the main_multi_content block and the if_in_group Comcode tag.
Question What is the difference between Filtercode and Selectcode?
Answer Filtercode is used for querying content based on properties and values, while Selectcode is used for directly specifying a list of IDs or categories to include or exclude. Filtercode offers more complex filtering options, while Selectcode is more straightforward for simple selections.
Question How can I filter content in Composr?
Answer Composr provides two filtering systems: Filtercode and Selectcode.
  • Filtercode is used for selecting content based on defined filters, such as field values, ratings, or keywords. It utilizes a syntax of comparisons, separated by commas, where each comparison specifies a field and a matching condition.
  • Selectcode is a simpler syntax for specifying a list of IDs or categories to include or exclude from the results. It uses a comma-separated list of match-specifier tokens, such as individual IDs, ranges, or wildcard characters.
Question What are blocks in Composr and how can I use them?
Answer Blocks are dynamic elements that can be inserted into Comcode pages to add interactive and data-bound functionality to your website. They are essentially reusable components that automatically generate content, such as recent forum posts or information about the logged-in user.

You can add blocks to your pages using the block construction assistant, which allows you to select from a list of available blocks, set their parameters, preview them, and generate the necessary Comcode.

Top 10 Entries

Question How do I add dynamic content to my Comcode pages?
Answer Composr utilizes "blocks" to embed dynamic content and functionality within Comcode pages. These blocks can range from displaying recent forum posts to showing information about the logged-in user.

To add a block, you can use the "block construction assistant" accessible via a button above the editor. This tool provides a user-friendly way to:
  • Browse and select available blocks.
  • Configure the block parameters.
  • Preview the block output.
  • Generate the necessary Comcode to embed the block.
Question How do I create a new Comcode page?
Answer Composr provides two easy ways to create a new Comcode page:

Method 1: Direct URL Entry
Type the desired URL of your new page into your browser's address bar.
Since the page doesn't exist yet, Composr will present you with a 404 error and a link to create it. Click the link to open the Comcode page editor.

Method 2: Admin Zone
Navigate to Admin Zone > Content > Pages (Comcode pages).
Scroll down to the list of existing pages and enter the name of your new page using the ":" (page-link) format. For example, a new page in the Welcome zone named "about" would be entered as ":about", or a new page in the "site" zone named "foobar" would be entered as "site:foobar".
Question What are Comcode pages?
Answer Comcode pages are standalone content pages within the Composr system that you can create and edit using either a WYSIWYG editor, a simple markup language called Comcode, or a combination of both.

Think of them as documents within your website, offering flexibility beyond the structured content provided by modules like forums or news. You can use them to build landing pages, about us sections, contact pages, and more.
Question Can I create custom Comcode tags?
Answer Yes, you can create custom Comcode tags through the Admin Zone > Setup > Custom Comcode. This allows you to add unique functionality or wrap specific HTML code (especially if you use a certain block of HTML frequently on your site) for easier use. Custom Comcode tags can be tailored to your needs and even include your own parameters. You can also specify if the Comcode is dangerous so only those with elevated privileges can use it.
Question What are the security considerations when using Comcode?
Answer Composr has a multi-tiered security system for Comcode. HTML code is filtered based on user permissions to prevent XSS attacks. Content is parsed with different credentials depending on who is editing or adding it, ensuring users can't elevate their privileges by modifying existing content.
Question What is oEmbed and how does it work with Comcode?
Answer oEmbed is a system that allows you to embed content from other websites simply by pasting its URL. When you paste a supported link in Comcode, oEmbed will automatically embed the content for you in a nicely-formatted box. For example, pasting a YouTube video link will embed the video directly into your content so it can be played on your website.
Question How do I add attachments to my content?
Answer Composr has an integrated attachment system. You can upload files, like images or documents, via the attachments section (or the image button if using the WYSIWYG editor with simplified attachments UI), and they will be automatically added to your Comcode using the attachment tag. You can then move this tag within your content to position the attachment as needed.
Question How do I use Comcode tags?
Answer Comcode tags are similar to HTML tags, but use square brackets [] instead of angle brackets <>. Each tag has an opening and closing tag, with content in between.

Example: [b]This text would be bold.[/b]

Tags can also have parameters:
Example: [img src="image.jpg" alt="Image description"]

A shorthand exists for the param parameter (the primary parameter of Comcode tags):
Example: [page="_SEARCH:howdy_do"]Howdy do[/page]
Question What are the advantages of using Comcode?
Answer Comcode offers several advantages:

Intuitive content authoring: It's written like plain text, making it easy to learn and use.
Dynamic functionality: You can embed dynamic content like blocks, comments, and forms using Comcode.
Special effects: You can easily add prebuilt graphical features like tabs, carousels, and more.
Basic styling and layout: Comcode allows for basic website styling and page layout.
HTML integration: For advanced styling and layout, you can embed HTML code within Comcode with the semihtml tag.
Question What is Comcode?
Answer Comcode is Composr's markup language, similar to BBCode used in forums. It allows you to create formatted text, embed dynamic content like blocks and attachments, and even mix in HTML for advanced styling. It's user-friendly and designed to work alongside standard web technologies.