GraphQL Array

[relaxabyte-corp]

In the AEM Sample Queries for filtering tags, the sample CF defines the Categories field as a Tag data type. It uses a filter to find CFs by two tags.

https://experienceleague.adobe.com/docs/experience-manager-cloud-service/assets/admin/content-fragme...

I am trying to emulate this filter on a Tag field. I created a model with a Tag field named tagfield. When I run my query below, I get this error:

...

"message": "Exception while fetching data (/digitalProductList) : Cannot compare single value to an array."

...

"extensions": {
    "classification": "DataFetchingException"
}

I checked the docs and tagfield has a "values: [String]" option in the filter.

If I change it to value: "show:comedy", then I get all CFs with that tag. Any ideas why the datatype tag field in my query would be a single string while the example works as a String Array? How can I change my model or query to filter on multiple tags?

Sample Query	My Query
query {   cityList(filter: {     categories: {       _expressions: [ {         values: [           "city:beach",           "city:na"         ]       } ]     }   }) {     items {       name       population       country       categories     }   } }	query {   myExampleList (filter: {     tagfield: {       _expressions: [ {         values: [           "show:comedy",           "show:drama"         ]       } ]     }   }) {     items {       _path       tagfield       name     }   } }

[relaxabyte-corp · Accepted solution]

I couldn't figure out why a field that is a multifield array and an expression that accept arrays kept generating the error. I never replicated the tutorial.

I ended up achieving what I wanted by changing the query to this:

query {
  myExampleList (filter: {
    tagfield: {
      _logOp: AND
      _expressions: [ 
        {value: "show:comedy"},
        {value: "show:drama"}
        ]
      } 
  }) {
    items {
      _path
      tagfield
      name
    }
  }
}

Bonus:
If you want to pass the tags in as a variable, you'd pass the _logop and _expression as json in a variable
($tagfield: StringArrayFilter!) and then set tagfield: $tagfield

[Nikita_Mitroshin]

Just additional info that the same issue reproduces for me on AEM 6.5.12, while on 6.5.15 it works fine.

Anyways, the way to go is to use the provided solution.

[deepthik84]

Although 6.5.15 didnt give the error I encountered with 6.5.12, the results are different

I created a simple model with a title an skulist where skulist is a multifield value in the content fragment

With 6.5.15, the following query wouldnt return any results

{
  mymodelList
  (filter: {skuids:{
     _expressions: [     
        {     
          values:  ["SKU0"]          
        }
       ]}} )
    {
    items{
      title
      skuids
    }
}

but when the values list in the query is updated with all the values in the multi field then it returns values

ex: when values:  ["SKU0"]    is replaced withvalues:  ["SKU0","SKU11","SKU12"]    then the result is{
  "data": {
    "mymodelList": {
      "items": [
        {
          "title": "Easter list",
          "skuids": [
            "SKU0",
            "SKU11",
            "SKU12"
          ]
        }
      ]
    }
  }
}

tired to use _logOp:OR before _expressions that also didnt return any results

So, the following filter had only 2 of the 3 multifiled values in the content fragment and didnt return any results

(filter: {skuids:{
    _logOp:OR
     _expressions: [     
        {     
          values: [ "SKU0","SKU11"]          
        }
       ]}}
     )

However, when updated to the below filter, it returned results as expected

(filter: {skuids:{
    _logOp:OR
     _expressions: [     
        {     
          value:  "SKU0"          
        },
      {
        value: "SKU11"
      }
       ]}}
     )