cell.get_value() return initial data when using List with a Mutator

[lewysigns]

I am trying to reset the value of a tabulator row after a new selection has been made on a list column. The issue arises, I think, because I am using a mutator on that column. cell.get_value() always returns initial data which does not allow me to appropriately update that value.

Should I create some pop-up form instead? Not sure how to track previous updates if they were made in the same session or at least time since the data was created for the table.

I have the following column:

      {'title':"Location","field":'load_location','hozAlign':"center","width":100,'editable':True,'mutator':self.get_location,'editor':"list",'editorParams':{
        'values':["One","Two"],
        'defaultValue':None,
        'emptyValue':None
      }},

here is the mutator:

  def get_location(self,value,data,*args,**params):
    return data['order'].get('load_location')

This fires when on 'tabulator cell edited' event

  def tabulator_cell_edited(self, cell, **event_args):
    """This method is called when a row is edited - returns the row - will edit the data inplace if writeback is set to True"""
    
    field = cell.get_field()
    if field == "load_location":
      index = cell.get_row().get_index()
      data  = cell.get_row().get_data()
      location = cell.get_value() # ALWAYS RETURNS INITIAL VALUE
      old_location = cell.get_old_value() # ALWAYS RETURNS INITIAL VALUE
      if location:
        if old_location:
          if old_location == location:
            return

        order = data['order']
        order['load_location'] = location
        update = {
          'load_location':location,
          'order': order
        }
        self.tab.tabulator.update_row(index,update)

CLONE

https://anvil.works/build#clone:TX5IJADW5BLXJTRB=IGU6N4GJMVJGZXZHMS4NRCBH

[s-cork]

So I think you want this

      {'title':"Location","field":'load_location','hozAlign':"center","width":100,'editable':True,'mutator':self.get_location,'editor':"list",'editorParams':{
        'values':["One","Two"],
        'defaultValue':None,
        'emptyValue':None
      }, "mutatorEdit": self.get_location},
    

    def get_location(self,value,data,*args,**params):
        return value or data['order'].get('load_location')