Add caption to TYPO3 renderObj for slider - slider

Question

I am using this little snippet for a slider:
table = tt_content
select {
where = colPos = 0
orderBy = sorting
languageField = sys_language_uid
}
renderObj = FILES
renderObj {
references {
table = tt_content
fieldName = image
}
renderObj = IMAGE
renderObj {
file.import.data = file:current:publicUrl
stdWrap.typolink.parameter.data = file:current:link
stdWrap.wrap = <li>|</li>
}
}
Works great and I like that it's very compact other than much more complex code I found around.
I would now like to add the imagecaption field to display text within a slide, but could not get it work.
Does anyone has a hint on that?

Answer 1

That depends on where your slider wants to take the caption from. If it can get it from the title or alt tag of your image, you could just add the caption to your renderObj:
renderObj = IMAGE
renderObj {
file.import.data = file:current:publicUrl
titleText = file:current:caption
stdWrap.typolink.parameter.data = file:current:link
stdWrap.wrap = <li>|</li>
}
or
renderObj = IMAGE
renderObj {
file.import.data = file:current:publicUrl
altText = file:current:caption
stdWrap.typolink.parameter.data = file:current:link
stdWrap.wrap = <li>|</li>
}
If you need to have it inside an own tag, you should go for the COA approach as suggested by Urs:
renderObj = COA
renderObj {
10 = IMAGE
10 {
file.import.data = file:current:publicUrl
stdWrap.typolink.parameter.data = file:current:link
}
20 = TEXT
20 {
data = file:current:caption
wrap = <span class="imagecaption">|</span>
}
wrap = <li>|</li>
}

Answer 2

the fieldname just isn't caption, but description:
file:current:description