Report by aggregated checklist

gistfile1.txt

function reportByAggregatedChecklist(params,signature,original_time)
{
  var checklists_by_name = {};
  var output = [];
  
  new Board(params).list("My List").cards().each(function(card)
  {
    card.checklists().each(function(cl)
    {
      if(!checklists_by_name[cl.name()])
      {
        checklists_by_name[cl.name()] = [];
      }
      
      var cur_cl_out = [];
      
      cl.items().each(function(item)
      {
        cur_cl_out.push(item.name()+": "+item.isComplete());
      });
      
      checklists_by_name[cl.name()].push(card.name()+"\n\n"+cur_cl_out.join("\n - "));
    });
  });
  
  new IterableCollection(checklists_by_name).each(function(group,name)
  {
    output.push(name+"\n\n"+group.join("\n")+"\n");
  }
  
  MailApp.send("you@domain.com","Your report",output);
  ExecutionQueue.push("reportByAggregatedChecklist",params,signature,original_time.addDays(1).at("7:00"));
}