Mark, that did it! thanks! will post corrected code with doc later. Eric &
Mark, thanks! //steve.
On Friday, July 14, 2017 at 1:09:35 PM UTC-4, Mark S. wrote:
>
> I don't have time to look at this right now, but the first thing I would
> try is going back to Eric's example and changing <$vars> to
>
> <$wikify name=this-value text=<<getFieldValue>>> ... </$wikify>
>
> Good luck!
> Mark
>
> On Friday, July 14, 2017 at 8:21:57 AM UTC-7, stevesuny wrote:
>>
>> Eric, this *almost* works, thanks! So close...I can see it working :)
>>
>> The challenge remains building a link to a tiddler represented by a
>> transcluded value of a filtered tiddler.
>>
>>
>>
>> You had
>>
>> <$list filter="[tag[schedule-elements]each<this-field>sort<this-field>]">
>> <$vars this-value=<<getFieldValue>>>
>> <<this-field>>: <$link><<this-value>></$link><br>
>>
>> which created a link to the filtered tiddler not the value tiddler.
>>
>>
>> I changed it to
>>
>> <$list filter="[tag[schedule-elements]each<this-field>sort<this-field>]">
>> <$vars this-value=<<getFieldValue>>>
>> <<this-field>>: <<this-value>>: Link to <$link
>> to=<<this-value>>><<this-value>></$link><br>
>>
>> which doesn't quite work: if <<this-field>> is "instructor" my link goes
>> to {{!!instructor}}
>>
>> So I must be only one level off on the transclusion...so close!
>>
>> //steve.
>>
>>
>>
>> On Thursday, July 13, 2017 at 5:17:07 PM UTC-4, Eric Shulman wrote:
>>>
>>> On Thursday, July 13, 2017 at 1:19:14 PM UTC-7, stevesuny wrote:
>>>>
>>>> I thought that, too.
>>>>
>>>> The problem: <$set name="this-value" value=<<currentTiddler>>> names
>>>> to the current tiddler, not the value of the field that I am interested in.
>>>>
>>>> How do I set this-value to a field value, whose name is itself a
>>>> variable?
>>>>
>>>
>>> This situation is referred to as "double indirection" (i.e. using one
>>> variable to hold the name of another variable that contains the desired
>>> value)
>>>
>>> Try using a little "helper" function to construct the desired
>>> reference...
>>>
>>> Something like this: (untested)
>>> \define getFieldValue() {{!!$(this-field)$}}
>>>
>>> <$list filter="[all[current]tag[element-field]]"
>>> <$vars this-field=<<currentTiddler>>>
>>> <$list filter=
>>> "[tag[schedule-elements]each<this-field>sort<this-field>]">
>>> <$vars this-value=<<getFieldValue>>>
>>> <<this-field>>: <$link><<this-value>></$link><br>
>>> </$vars>
>>> </$list>
>>> </$vars>
>>> </$list>
>>>
>>> <<getFieldValue>> uses the $(...)$ syntax to substitute the current
>>> field name into the transclusion syntax. Thus, if this-field has a value
>>> of "foobar", <<getFieldValue>> will return "{{!!foobar}}" which is then
>>> parsed by the <$vars> widget to retrieve the field value and assign it to
>>> the "this-value" variable
>>>
>>> Note: instead of using the <$set name="foo" value="bar"> syntax, I
>>> prefer to use the <$vars foo="bar"> syntax.... they both will have the same
>>> result, but <$vars> seems easier to read.
>>>
>>> enjoy,
>>> -e
>>>
>>
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