few issues

[DavidBruchmann]

• A Class in the folder Backend is not found, it's configured in Services.yaml and I saw there was a class added but removed again.
• in TCA a field parent is mentioned in types.1.showitem, but that field doesn't exist
• The extbase reflection doesn't work for me, but I get only the count shown (int)

[DavidBruchmann]

man kanns natürlich auch per TS rendern, aber dann wären die Extbase Dinge überflüssig, und es ist beim Templating nicht so intuitiv vielleicht.

Constants:

    # cat=content/tags; type=int; label=Page uid where Tags are stored
    styles.content.tags.storagePid = 2

Setup:

lib.tags = COA
lib.tags {
  5 = LOAD_REGISTER
  5 {
      contentUid.cObject = TEXT
      contentUid.cObject {
          field = contentUid
      }
  }
  
  20 = CONTENT
  20 {
    table = sys_tag
    select {
      selectFields = sys_tag.*
      pidInList = {$styles.content.tags.storagePid}
      join.dataWrap = sys_tag_record_mm mm ON mm.uid_local = sys_tag.uid AND mm.{#uid_foreign}={register:contentUid}
    }
    renderObj = COA
    renderObj {
      10 = TEXT
      10.stdWrap.field = title
      10.stdWrap.noTrimWrap = |<span class="tag">|</span> |

      # 20 = TEXT
      # 20.stdWrap.field = description
      # 20.stdWrap.wrap = <p>|</p>
      # 20.stdWrap.required = 1
    }
    # stdWrap {
      # debug = 1
      # debugFunc = 1
      # debugData = 1
    # }
  }
  40 = RESTORE_REGISTER
}

und im Fluid Layout für ContentElements dies:

<f:if condition="{data.tags}">
    <f:cObject typoscriptObjectPath="lib.tags" data="{contentUid: data.uid}" />
</f:if>

[DavidBruchmann]

Falls das nicht rendern sollte fehlt noch ein Patch
ContentContentObject.PATCH

Und in der root composer.json dann dies:

	"extra":{
        "enable-patching": true,
		"patches": {
			"typo3/cms-frontend": {
				"Patch repair TypoScript": "local_patches/frontend/ContentContentObject.patch"
			}
		}
	}

[DavidBruchmann]

Und verlinkt sind die tags dann noch nicht