I had a nice post about this written up but then my browser died.
The quick answer is that there isn't a direct way to do this nicely. We
need to make it so that you can give a list of inputs and acts on a list of
inputs. I think Jeremy had some ideas for how to implement this in the past
but I don't know if anyone has had time to do this.
There are a few ways to work around this, they all involve nested things.
This list the values, but they are all in separate lists.
<$list filter='[[bar]fields[]prefix[foo]]' variable=fieldName>
<$list filter='[[bar]get<fieldName>]' variable=fieldValue>
<<fieldValue>>
</$list>
</$list>
you can get them all in the same output list but it is awkward and uses
recursion so if there are too many fields it may result in a red box of
javascript recursion doom.
The movingOn macro has the list of values in fieldList, it can be used as a
filter. There may be a simpler way to achieve the same thing but this is
the first working thing I made for it.
I think that you will need to have a lot of fields listed before there are
any problems with recursion, but it is possible.
\define recursiveDoom()
<$list variable=fieldName filter='[enlist<fieldNames>first[]]'
emptyMessage=<<movingOn>>>
<$set filter='[<tiddler>has<fieldName>get<fieldName>]' name=fieldValue>
<$set name=fieldList filter='[enlist<fieldList>append<fieldValue>]'>
<$set name=fieldNames filter="""[enlist<fieldNames>]
-[<fieldName>]""">
<<recursiveDoom>>
</$set>
</$set>
</$set>
</$list>
\end
\define movingOn()
Here you get everything as a single list<br>
<<fieldList>>
\end
<$vars prefix=foo tiddler=bar>
<$set name=fieldList value=''>
<$set filter='[<tiddler>fields[]prefix<prefix>]' name=fieldNames>
<$set name=first filter='[enlist<fieldNames>first[]]'>
<$set name=last filter='[enlist<fieldNames>last[]]'>
<<recursiveDoom>>
</$set>
</$set>
</$set>
</$set>
</$vars>
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