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How are categories connected to groups in PHP?
Each Categories field is connected to a single category group. Whatever you attach the field to will be able to create relations to any of the categories within that group. You can fetch categories in your templates or PHP code using category queries.
How are category queries used in PHP templates?
You can fetch categories in your templates or PHP code using category queries. Once you’ve created a category query, you can set parameters on it to narrow down the results, and then execute it by calling .all (). An array of Category objects will be returned. See Element Queries to learn about how element queries work.
How to do category query in craft CMS?
Category queries support the following parameters: Narrows the query results to only categories that are up to a certain distance away from the category specified by ancestorOf. Narrows the query results to only categories that are ancestors of another category. Removes element filters based on their statuses.
What happens to the Order of the categories in craft?
Determines the order that the categories should be returned in. (If empty, defaults to dateCreated DESC, or the order defined by the category group if the group or groupId params are set to a single group.) Narrows the query results to only categories that are positioned after another category.
How to create category groups in craft CMS?
Each Category Group lets you define the following: To create a new category group, go to Settings → Categories and click the “New Category Group” button. After you create at least one category group, you will be able to create categories for that group.
Why are groups and categories associated with each other?
Groups and Categories are associated with each other to provide a complete set of permissions for each user. Each Group can be associated with one or more Categories and each category can provide a different set of project- and resource-level permissions on the projects in that category for the members of that group.
Which is the template hierarchy for a category?
This is known as the Template Hierarchy. In the case of categories, the hierarchy is fairly simple. For instance, suppose the slug of the Category in question is news and the Category ID is 6.