Filter op to access non-specific field values?

[Mat]

...fields[]prefix[foo]

...but then; How do I get the values from those fields?

<:-)

[Jed Carty]

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>