Query by Content Relationship

To query by a particular Content Relationship / Document link value, you must use the ID of the document you are looking for.

You must use the document ID

Note that you must use the document ID to make this query. It does not work if you try to query using a UID value.

By a Content Relationship field

The following example queries all the "blog_post" custom type documents with the "category_link" field (a Content Relationship) equal to the category document with the ID of "WNje3SUAAEGBu8bc".

Copy

response = api.query([
    Prismic::Predicates.at("document.type", "blog_post"),
    Prismic::Predicates.at("my.blog_post.category_link", "WNje3SUAAEGBu8bc")]
)
# response contains the response object, response.results holds the documents

By a Content Relationship field in a Group

If your Content Relationship field is inside a group, you just need to specify the Group, then the Content Relationship field.

Here is an example that queries all the "blog_post" custom type documents with the "category_link" field (a Content Relationship) equal to the category with a document ID of "WNje3SUAAEGBu8bc". In this case, the Content Relationship field is inside a Group field with the API ID of "categories".

Copy

response = api.query([
    Prismic::Predicates.at("document.type", "blog_post"),
    Prismic::Predicates.at("my.blog_post.categories.category_link", "WNje3SUAAEGBu8bc")]
)
# response contains the response object, response.results holds the documents

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