> Portal Navigation: > > - Append `.md` to any URL under `https://dev.wix.com/docs/` to get its markdown version. > - Pages are either content pages (article or reference text) or menu pages (a list of links to child pages). > - To get a menu page, truncate any URL to a parent path and append `.md` (e.g. `https://dev.wix.com/docs/sdk.md`, `https://dev.wix.com/docs/sdk/core-modules.md`). > - Top-level index of all portals: https://dev.wix.com/docs/llms.txt > - Full concatenated docs: https://dev.wix.com/docs/llms-full.txt ## Resource: "Categories" Collection Fields ## Article: Wix Forum "Categories" Collection Fields ## Article Link: https://dev.wix.com/docs/velo/apis/wix-forum-v2/categories-collection-fields.md ## Article Content: # Velo: Wix Forum "Categories" Collection Fields
**Tip:** Before continuing, make sure you've read [Working with Wix App Collections](https://dev.wix.com/docs/develop-websites/articles/databases/wix-data/collections/working-with-wix-app-collections-and-code.md).
This document describes the permissions and fields in your Categories collection.  ### Permissions The Categories collection has the following [permissions](https://support.wix.com/en/article/about-collection-permissions): * **Read:** Anyone * **Create:** None * **Update:** None * **Delete:** None You cannot change the Categories collection's permissions.  ### Fields >**Note:** > This app collection contains read-only fields that cannot be managed from the collection. You can update the fields from the relevant app in your site’s [dashboard](https://support.wix.com/en/article/accessing-your-sites-dashboard). The field name is listed as the heading of each section, with the field ID listed in parentheses, like this: Name (name). The fields appear in this document in the order in which they appear in your collection by default. #### ID (\_id) **Description**: The category ID. **Type**: Text **Can connect to data**: Yes **Can use in dynamic page URL**: No **Can be sorted**: No **Can be filtered**: eq, ne, hasSome **Read-only**: Yes #### Parent ID (parentId) **Description**: ID of the parent category (for subcategories). **Type**: Text **Can connect to data**: Yes **Can use in dynamic page URL**: No **Can be sorted**: No **Can be filtered**: eq, ne **Read-only**: Yes #### Name (name) **Description**: Category name. **Type**: Text **Can connect to data**: Yes **Can use in dynamic page URL**: Yes **Can be sorted**: No **Can be filtered**: eq, ne, contains, startsWith, hasSome **Read-only**: Yes #### Header Title (headerTitle) **Description**: Title in the category header. **Type**: Text **Can connect to data**: Yes **Can use in dynamic page URL**: Yes **Can be sorted**: No **Can be filtered**: eq, ne, contains, startsWith, hasSome **Read-only**: Yes #### Description (description) **Description**: Description in the category header. **Type**: Text **Can connect to data**: Yes **Can use in dynamic page URL**: No **Can be sorted**: No **Can be filtered**: contains, startsWith, hasAll **Read-only**: Yes #### Header Type (headerType) **Description**: Type of category header. **Type**: String **Can connect to data**: Yes **Can use in dynamic page URL**: No **Can be sorted**: No **Can be filtered**: eq, ne **Read-only**: Yes **Notes**: Either "COLOR" or "IMAGE". #### Header Image (headerImage) **Description**: Header Image. **Type**: Image **Can connect to data**: Yes **Can use in dynamic page URL**: No **Can be sorted**: No **Can be filtered**: No **Read-only**: Yes #### Header Image Overlay Color (headerImageOverlayColor) **Description**: Header image overlay color. **Type**: Text **Can connect to data**: No **Can use in dynamic page URL**: No **Can be sorted**: No **Can be filtered**: No **Read-only**: Yes #### Header Background Color (headerBackgroundColor) **Description**: Header background color. **Type**: Text **Can connect to data**: No **Can use in dynamic page URL**: No **Can be sorted**: No **Can be filtered**: No **Read-only**: Yes #### Header Text Color (headerTextColor) **Description**: Header text color. **Type**: No **Can connect to data**: Yes **Can use in dynamic page URL**: No **Can be sorted**: No **Can be filtered**: No **Read-only**: Yes #### Rank (rank) **Description**: Category order, where 0 indicates the first category. **Type**: Number **Can connect to data**: Yes **Can use in dynamic page URL**: No **Can be sorted**: Yes **Can be filtered**: eq, ne, lt, lte, gt, gte **Read-only**: Yes #### Post Count (postCount) **Description**: Number of posts in the category. **Type**: Number **Can connect to data**: Yes **Can use in dynamic page URL**: No **Can be sorted**: Yes **Can be filtered**: eq, ne, lt, lte, gt, gte **Read-only**: Yes #### Post View Count (postViewCount) **Description**: Number of times the posts in the category have been viewed. **Type**: Number **Can connect to data**: Yes **Can use in dynamic page URL**: No **Can be sorted**: Yes **Can be filtered**: eq, ne, lt, lte, gt, gte **Read-only**: Yes #### Write Protection **Description**:  **Type**: Boolean **Can connect to data**: Yes **Can use in dynamic page URL**: No **Can be sorted**: No  **Can be filtered**: No  **Read-only**: Yes #### Page URL (pageUrl) **Description**: URL of the category page. **Type**: URL **Can connect to data**: Yes, can connect as a button click action. **Can use in dynamic page URL**: No **Can be sorted**: No **Can be filtered**: No **Read-only**: Yes #### Slug (slug) **Description**: The category's slug, which is its URL-friendly name that is unique across the forum. **Type**: Text **Can connect to data**: Yes **Can use in dynamic page URL**: Yes **Can be sorted**: No **Can be filtered**: Yes **Read-only**: Yes