Manipulating lists with select multiple

[TonyM]

Folks,

I am building a generic method to select multiple items (in this case people) from one large list, and add/or remove them from a list field. 

I am not sure however to build the button that moves members between lists. Any pointers would be helpful.

It should be simple, but at this time my head is hurting.

I have attached and image to show what I mean.

• The people in the first column are from the available people (excluding those already in the field office-consultants-list ,
  selecting them stores them in a field temp-select-users
• The people in the second column are those selected in the First column in field temp-select-users
  
• The people in the third column are those already selected in the field office-consultants-list
  and if selected are stored in the field temp-remove-users
  

I need help creating buttons to

• Append the people in temp-select-users to the office-consultants-list field
• Remove the people in temp-remove-users from the office-consultants-list field

Of course I want to add and remove from the current office-consultants-list field, not replace it.

I should be able to return a usable macro

Thanks in advance

Tony

[Mat]

It's a bit too late for me to read you post very carefully but if I understand you right you need help with the moving of items from one list to another. Maybe this helps:

In a tiddler, have a field like so

a : one two three

and in editor preview mode do

<$button>

<$action-listops $field=a $filter="[enlist{!!a}] -two"/>

<$action-listops $field="b" $subfilter="two"/>

>>

</$button>

<:-)

[TonyM]

Mat,

The problem is I want to

1. add from a tiddler containing the list to a field
2. remove from a tiddler containing the list from a field

Eg;

1. $:/temp/select/add
2. $:/temp/select/remove
3. list-field

By late I assume you mean time of day, it being different here and all.

Regards

Tony

[Mark S.]

Something like Mat had, but since you have an actual list field, and not a text field, perhaps:

<$button>Move right
<$action-listops $field="office-consultants-list" $subfilter="[list[!!temp-select-users]]" />
<$action-listops $field="temp-select-users" $filter="[[]]"/>
</$button>

<$button>Move left
<$action-listops $field="temp-select-users" $subfilter="[list[!!office-consultants-list]]" />
<$action-listops $field="office-consultants-list" $filter="[[]]"/>
</$button>

[TonyM]

Mark/Mat,

Do I take it then that

$subfilter="[list[!!temp-select-users]]" adds temp-select-users to the list

$subfilter="-[list[!!temp-select-users]]" removes temp-select-users to the list

All the examples give literals with a title, +title -title

This use of the filter format in subfilter confuses me, because filter="-[list[!!temp-select-users]]" would result in nothing in a normal filter.

Regards

Tony

[Mark S.]

Yes, the subfilter works differently than a plain filter, because the filter is being applied as though the original title list preceded it.

[TonyM]

Mark.

So is it true to say in the subfilter if you place the - in front of a title OR filter that it is those titles it will remove if tgey exist from the list?

Thanks for your help
Regards
Tony

[Mark S.]

That's how I understand it, but I don't claim to be an expert.

Good luck!