Query on parent reference

APIs Content Delivery API
,
1

Hello :slight_smile:

is it possible to query on refenrences with where?

eg. find collection → where property (parentLink) id-> is equal to (id)

can this be done in graphql?

right now i can ONLY see the parentLink_exists eg: `

contentPageCollection(where: {parentLink_exists: true})
    items {
      sys {
        id
      }
    }
    
  }
2

Hi,

I don’t think so, what I have had to do is build one query to get a collections of pages and then one to get the actual page.
When getting the page, I use fragments to get the content items. For example, here is my listPages:

query pageCollection {
  pageCollection {
    items {
      sys {
        id
      }
      title
      image
      description
      path
      contentCollection {
        items {
          __typename
        }
      }
    }
  }
}

Once I have that, I then check the route and try to find the page id by the path. If found I then do a query like this:

query getPage($id: String!) {
  page(id: $id) {
    title
    breadcrumbEnabled
    header {
      __typename
      ...SectionAbout
      ...BrandSection
      ...SectionCallToAction
      ...SectionFindUs
      ...SectionGallery
      ...SectionImageColumn
      ...SectionLive
      ...SectionMultipleRows
      ...SectionPartners
      ...SectionProducts
      ...SectionTheatres
    }
    contentCollection(limit: 8) {
      items {
        __typename
        ...SectionAbout
        ...BrandSection
        ...SectionCallToAction
        ...SectionFindUs
        ...SectionGallery
        ...SectionImageColumn
        ...SectionLive
        ...SectionMultipleRows
        ...SectionPartners
        ...SectionProducts
        ...SectionTheatres
      }
    }
  }
}

A fragment might look like this:

fragment SectionProducts on SectionProducts {
  __typename
  title
  description
  contentfulMetadata {
    tags {
      id
    }
  }
}

HTH

3

It is not possible to search by a value in a multi-reference field. However, you could search on the childCollection, and then find the parentCollection with linkedFrom

query{
  childCollection(where:{xxx_contains:"xxx"}){
    items{
      linkedFrom{
        parentCollection{
          items{
            xxx
          }
        }
      }
    }
  }
}

Full doc can be found here.

4

Hey Alma,

Thanks for the info.

However, I think your query has one issue where you can’t query the fields of parent Collection(xxx_contains) from the child collection.

I believe we can get all the parent collections linked to child collection but we can’t get the parent collection containing certain field that are linked to child collection

Can you confirm if it can be done