Drop down sub menu list depending on previous choice/selection

,
#1

I am attempting to piece together dynamic variables to determine the submenu from a previous menu choice.

Choose a muscle motion to exercise:
<$select $tiddler=’$:/verb/exercise’ field=‘exercise’ default=‘Choose a new exercise’>
< option>abdominals< /option>
< option>pulling< /option>
< option>pushing< /option>
< option>squats< /option>
< option>hip_hinges< /option>
</$select>

suppose I have populated different exercise list inside different fields segregated by the muscle group.

list_abdominals: [[Woodpecker Plank]] [[Single Leg Reverse Jackknife]] [[Spiderman Crunches]] [[Starfish Crunches]] …
list_hip_hinges [[Barbell hip thrust]] [[Bear crawls ]] [[Bent-over row]] [[Clamshell]]…
list_pulling [[Fly Pull-Ups]] [[Foot-Supported L-Sit Hold]] [[Frog Pull-Ups]] [[Gorilla Pull-Ups]]…
list_pushing [[Side-to-Side Push-Ups]] [[Single-Arm Handstand Push-Ups]] [[Spiderman Push-Ups]]…

depending on the exercise group i would like the corresponding list option. So far I’ve figured out how to make the static syntax work.

Abdominal Exercise:<$select field=“exercise_abdominal”><$list filter="[list[!!list_abdominals]]">{{!!title}}</$list></$select>

dynamic syntax (not working)

{{!!exercise}} Exercise:<$select field={{!!exercise}}><$list filter="[list[list_{{!!exercise}}]]">{{!!title}}</$list></$select>

dynamic syntax alt (not working)

{{!!exercise}} Exercise:<$select field="{{!!exercise}}"><$list filter="[list[list_<$text text={{!!exercise}}/>]]">{{!!title}}</$list></$select>

  • if i print list_{{!!exercise}} it will print the text as it should: list_{{!!exercise}}
  • if i print list[list_<$text text={{!!exercise}} it will print the text as it should: list_<$text text={{!!exercise}}/>

then why its not feeding into command execution?

once i figure that out, I will also like to include a counter in the suffix for each field name exercise set on each entry for repetitions; in order to track which exercise set each repetition belongs to.

I’m guessing

{{!!exercise}}_repetion_set _ +indexes[]

1 Like
#2

The problem is that while list_{{!!exercise}} displays the desired fieldname, you can’t use that syntax within the filter to construct and use that fieldname as the operand of the list[...] filter operator.

Try this instead:

{{!!exercise}} Exercise:
<$let fieldname={{{ [[!!list_]] [{!!exercise}] +[join[]] }}}>
<$select field={{!!exercise}}>
   <$list filter="[list<fieldname>]">
      <option value={{!!title}}>{{!!title}}</option>
   </$list>
</$select><br>
</$let>
  • First use a $let widget with “filtered transclusion” to join together the parts of the fieldname.
  • Then, use [list<fieldname>] to output the options within the “sub-menu” $select widget.

enjoy,
-e

#3

Hey Eric,
Has anyone a showcase to understand how the different tiddler fit together ?

Best

#4

My next objective is to track each number of sets of repetition per exercise. Exercises vary hence some exercises end at one set others at 8, on average 4. So I need a solution where it doesn’t matter how many.

how can I program dynamic field names such that sets can be added to the field name as its range field dial entry is put into that field’s value; with the press of a button; resetting the dial for the next set of repetitions, wash rinse and repeat.

repetitionOf_exerciseX_set_01:
repetitionOf_exerciseX_set_02:
repetitionOf_exerciseX_set_03:
…

my attempt made Java angry; flashing big red “Internal JavaScript Error” notices; I would have included a screenshoot of the insident except Java found the whole experience quite embarrasing.

here is my offensive syntax:

<$let repetition={{{ [[!!repetitionOf_]] [{!!exercise}] [[!!_set_]] +[indexes[]] +[join[]] }}}>
<$vars string="[[Set Number ]] +[indexes[]] +[join[]]">
<$range field=<repetition>  min="-1" max="10" default="1" increment="1"/> 
<br> Number of repetitions: {{!!<repetition>}}
<br> <$text text=<<string>>/>

<$button>
<$action-setfield $tiddler='$:/verb/exercise/' <<repetition>>={{$:/verb/exercise/<repetition>}} />
<<string>>
</$button>
</$vars>