Your "male" line has an error. There is a missing square bracket on the end:
<$list filter="[all[current]gender[male]">
Since you don't have a label that says "mother" or "father", I don't know
why you have two gender loops.
You should be able to add a filter operator to the gender list loop
<$vars haschild="[all[tiddlers]field:father{!!title}limit[1]]">
<$list filter="[all[current]gender[male]filter<haschild>]">
<tr>
<td>''Children''</td>
<td><<list-links [field:father{!!title}]>></td>
</tr>
</$list>
</$vars>
On Sunday, November 7, 2021 at 3:17:23 AM UTC-8 [email protected] wrote:
> Hello!
>
> Okay, so the context for this is that I have, or will have, a database of
> many, many interrelated individuals. Each of those individuals has a
> 'mother' and a 'father'. I can currently get tiddlywiki to display lists of
> children each individual has, based on their name showing up in the mother
> or father field of another tiddler. What I can't figure out how to do is
> get the 'Children' row of the table not to show when an individual has no
> children.
>
> For other fields I can do something like this:
> <$list filter="[all[current]has[secondaryeducation]]">
> <tr>
> <td>''Secondary Education''</td>
> <td><$link to={{!!secondaryeducation}} /></td>
> </tr></$list>
>
> When an individual doesn't have the secondaryeducation field, the row
> doesn't show up in the sidebox.
>
> My current set up for listing children looks like this
>
> <$list filter="[all[current]gender[female]]">
> <tr>
> <td>''Children''</td>
> <td><<list-links [field:mother{!!title}]>></td>
> </tr></$list>
> <$list filter="[all[current]gender[male]">
> <tr>
> <td>''Children''</td>
> <td><<list-links [field:father{!!title}]>></td>
> </tr></$list>
> <$list filter="[all[current]has[id]]">
>
> If the individual is female, it looks for instances of the title of the
> individuals tiddler being listed as the mother in other tiddlers. Vice
> versa for males.
>
> I've fiddled with lots of widgets. I think the problem is that this syntax
> [field:father{!!title}] doesn't play well...
>
> Also, if you have better alternative methods of achieving this goal, I'm
> all ears! I know filling in a 'Children' field, would solve this problem,
> but I want to cut manual data input to a minimum, and in principle all
> biological familial relationships (siblings, aunts, grandparents...etc.)
> can be expressed in mother-child, and father-child relationships.
>
>
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