Merge fields and dataProcessing in JSON content

[dvdmlln]

Hi,

currently it is not possible to define fields and dataProcessing because dataProcessing overwrites the whole content.
For example I'd like to define add a flexform to a text field.

The typoscript looks like this:

tt_content.text {
    fields {
        content {
            fields {
                flexform {
                    dataProcessing {
                        10 = FriendsOfTYPO3\Headless\DataProcessing\FlexFormProcessor
                        10 {
                            fieldName = pi_flexform
                            as = flexform
                        }
                    }
                }
            }
        }
    }
}

and the JSON output:

"content": {
  "header": "header",
  "subheader": "",
  "headerLayout": 0,
  "headerPosition": "",
  "headerLink": "",
  "bodytext": "bodytext"
  "flexform": {
    "additionalData": "data"
  }
}

So I moved the dataProcessing one level up like this so additionalData property moves on level up:

tt_content.text {
    fields {
        content {
            dataProcessing {
                10 = FriendsOfTYPO3\Headless\DataProcessing\FlexFormProcessor
                10 {
                    fieldName = pi_flexform
                    as = flexform
                }
            }
        }
    }
}

This leads to the dataProcessing overwriting the whole content:

"content": {
  "additionalData": "data"
}

Are there any reasons not to merge the fields and dataProcessing? Or did I miss something and this is already possible?
In line 131 in FriendsOfTYPO3\Headless\ContentObject\JsonContentObject the fields are always overwritten if dataProcessing exists.
I'd be happy to create a PR if this is something to be considered.
If there would be any side effects, maybe this could be allowed with an flag in the json content object?

Best regards
David

[twoldanski]

Hi @dvdmlln, could you provide a PR?

[dvdmlln]

#592

TypoScript would look like this:

tt_content.text {
    fields {
        content {
            merge = 1
            dataProcessing {
                10 = FriendsOfTYPO3\Headless\DataProcessing\FlexFormProcessor
                10 {
                    fieldName = pi_flexform
                    as = flexform
                }
            }
        }
    }
}