PATCH vs POST on a relationship endpoint

[baseer]

I see here a function that can be used to update a relationship endpoint: https://github.com/limoncello-php/framework/blob/master/components/Flute/src/Http/JsonApiBaseController.php#L282-L313

However, there are two different use cases in the json api, PATCH vs POST as defined here: http://jsonapi.org/format/#crud-updating-to-many-relationships

Basically PATCH is supposed to replace all members of the relationship and POST is simply supposed to add members to the relationship.

Which method does the updateInRelationship() function implement and is there an easy for updateInRelationship() to perform as both PATCH and POST methods as defined by the json api?

[neomerx]

Currently, relationships (both to-one and to-many) could be updated as described in Updating a Resource’s Relationships

For example,

{
  "data": {
    "type": "articles",
    "id": "1",
    "relationships": {
      "author": {
        "data": { "type": "people", "id": "1" }
      },
      "tags": {
        "data": [
          { "type": "tags", "id": "2" },
          { "type": "tags", "id": "3" }
        ]
      }
    }
  }
}

You can send one or more relationships to update.

Updates in a way you linked currently is not supported out of the box, though, I beleive, are possible with lower level methods. I'll keep this issue open as a next enhancement to implement.