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# Velo: Wix Blog "Categories" Collection Fields

<div style="background: #D9F4F4; border: 1px solid #B3E9E8; border-radius: 6px; padding: 7px 17px 7px 17px; width: max-content; margin-top: 5px; margin-bottom: 5px;">Visit the <a style="text-decoration: color: #3197EF;" href="fallback::https://www.wix.com/velo" target="_blank">Velo by Wix website</a> to onboard and continue learning.</div>

>**Note:** 
> Before continuing, make sure you've read [Working with Wix App Collections](resourceId::e6af4b4f-4075-468f-9d94-41de151c2cec*fallback::https://github.com/wix-private/developer-docs/blob/ff71a4079f3cf19b0e7fd153273372a60fb58124/velo-articles/Coding%20with%20Velo/Working%20with%20Wix%20App%20Collections%20and%20Code.md).

This document describes the permissions and fields in your Categories collection. 

### Permissions

The Categories collection has the following [permissions](fallback::https://support.wix.com/en/article/about-collection-permissions):

*   **Read:** Anyone 
*   **Create:** None
*   **Update:** None
*   **Delete:** None

You cannot change the Categories collection permissions. 

### Fields

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 ID of the blog category. This is a system field and is hidden by default.

**Type**: Text

**Can connect to data**: Yes

**Can use in dynamic page URL**: No

**Can be sorted**: Yes

**Can be filtered**: eq, ne

**Read-only**: Yes

#### Label (label)

**Description**: The name of the category as it appears in the Blog menu. 

**Type**: Text 

**Can connect to data**: Yes 

**Can use in dynamic page URL**: Yes

**Can be sorted**: Yes

**Can be filtered**: eq, ne, contains, startsWith, hasSome 

**Read-only**: Yes

#### Post Count (postCount)

**Description**: The 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

#### Posts (posts)

**Description**: A list of posts in this category, referenced from the [Blog/Posts](resourceId::c8e390b6-90b4-4f26-892f-85c00dddccf5*fallback::https://github.com/wix-private/developer-docs/blob/ff71a4079f3cf19b0e7fd153273372a60fb58124/velo-articles/Wix%20Apps%20with%20Velo/Wix%20Blog%20%22Posts%22%20Collection%20Fields.md) collection.

**Type**: Multiple-item reference

**Can connect to data**: No

**Can use in dynamic page URL**: No

**Can be sorted**: No

**Can be filtered**: Yes

**Read-only**: Yes

#### Language (language)

**Description**: The category language.

**Type**: Language

**Can connect to data**: No

**Can use in dynamic page URL**: No

**Can be sorted**: No

**Can be filtered**: Yes

**Read-only**: Yes

#### Translation ID (translationId)

**Description**: ID of the category's translations. 

**Type**: Text

**Can connect to data**: Yes

**Can use in dynamic page URL**: No

**Can be sorted**: No

**Can be filtered**: Yes

**Read-only**: Yes

#### Category Page Slug (categoryPageSlug)

**Description**: The slug of the category page on your published site.

**Type**: URL

**Can connect to data**: Yes

**Can use in dynamic page URL**: No

**Can be sorted**: No

**Can be filtered**: No

**Read-only**: Yes

#### Category Page URL (categoryPageUrl)

**Description**: The URL of the category page on your published site.

**Type**: URL

**Can connect to data**: Yes

**Can use in dynamic page URL**: No

**Can be sorted**: No

**Can be filtered**: No

**Read-only**: Yes

#### Cover Image (coverImage)

**Description**: Category cover image.

**Type**: Image

**Can connect to data**: No

**Can use in dynamic page URL**: No

**Can be sorted**: No

**Can be filtered**: No

**Read-only**: Yes

#### Description (description)

**Description**: Category description.

**Type**: Text

**Can connect to data**: Yes

**Can use in dynamic page URL**: No

**Can be sorted**: No

**Can be filtered**: No

**Read-only**: Yes

#### Slug (slug)

**Description**: Slug of the category to retrieve.

**Type**: Text

**Can connect to data**: Yes

**Can use in dynamic page URL**: Yes

**Can be sorted**: No

**Can be filtered**: No

**Read-only**: Yes