Help on connecting repeater to a filtered dropdown via dataset

var DDprefix = "#sitedropdown, #locationdropdown, #advisordropdown";

No, DDprefix is the prefix-ID of all your dropdowns…

EXAMPLE: If you have for example 3x dropdowns called “DD1”, “DD2”, “DD3”, than your DDprefix would be —> “DD”.

If your 3x dropdowns would have the following IDs → “dropdown1”, “dropdown2”, “dropdown3”, than the DDprefix would be —> dropdown.

In simple words → prefix + index (dropdown-index) = dropdown-ID.

You will have to rename your dropdowns to one prefix ---->

dd1, dd2, dd3 or dropdown1, dropdown2, dropdown3, all IDs should have the same PREFIX

Or to generate an ARRAY ---->

myDropdowns = ["#sitedropdown, #locationdropdown,  #advisordropdown"]

No! No dataset. This example uses DATABASE (COLLECTION), no DATASET!

var DATABASE = "#newbuilddataset"

RIGHT!

var DATABASE = "Collection-Name" ----> "Dupree_stuff"

OK!

var REPEATER = "#repeater2"
var DropDowns= []
var MEMdropdowns = []

OK!

DropDowns[0] = "site"  ; 
DropDowns[1] = "location"  ;  
DropDowns[2] = "advisor"  ;

-----------------------------------CODE-UPDATE-II-------------------------------------------

import wixData from 'wix-data';


//------------[User-Interface-----------------------------------------------------|
var DATABASE = "Dupree_stuff"
var REPEATER = "#repeater2"
var DDprefix = "dropdown" //rename related dropdowns, like shown DDprefix -> dropdown)
//----------------------------------|
DropDowns[0] = "site"  ;        //column in your DATABASE ("title")
DropDowns[1] = "location"  ;    //column in your DATABASE 
DropDowns[2] = "advisor"  ;     //column in your DATABASE 
//------------[User-Interface-----------------------------------------------------|

var DropDowns= []
var MEMdropdowns = []

//------------starting CODE-part when page loads.....
$w.onReady(function () { 
   load_uniqueTitles_DropDowns();
  
   $w('#sitedropdown').onChange(()=>{console.log("Site-DropDown clicked")
      MEMdropdowns[0] = $w('#sitedropdown').value
      $w('#sitedropdown').enable();
      FILTER_ENGINE()
   })   
 
   $w('#locationdropdown').onChange(()=>{console.log("Location-DropDown clicked")
      MEMdropdowns[1] = $w('#locationdropdown').value
      $w('#locationdropdown').enable();
      FILTER_ENGINE()
   }) 
 
   $w('#advisordropdown').onChange(()=>{console.log("Advisor-DropDown clicked")
      MEMdropdowns[2] = $w('#advisordropdown').value
      $w('#advisordropdown').enable();
      FILTER_ENGINE()
   }) 
});

//-----loading of DropDown-Unique-Titles for all given DropDowns.....
async function load_uniqueTitles_DropDowns() {
 console.log("Load uniqueTitles for DropDowns")
 let dbDATA = await wixData.query(DATABASE)
 let Options = []

 for (var a = 0; a < DropDowns.length; a++) {
 if(DropDowns[a]!==undefined && DropDowns[a]!=="site" && DropDowns[a]!==null) {
 await dbDATA.distinct(DropDowns[a])
            .then((results) => {
 let items = results.items
 
 for (var b = 0; b <items.length; b++) {
                    Options.push([])    
                    Options[a].push({"label": items[b], "value": items[b]})
                }
                $w('#'+DDprefix+(a+1)).options = Options[a]
                $w('#'+DDprefix+(a+1)).placeholder = DropDowns[a]    
            })
        }       
    }   
}
 
 function FILTER_ENGINE(){
 let query = wixData.query(DATABASE).limit(1000)
 
 //Filter-DropDowns-------------------------------------------
 for (let i=0; i < DropDowns.length; i++) {
 
 if (MEMdropdowns[i]!==undefined && MEMdropdowns[i]!=="undefined"){
            $w('#'+DDpräfix+(i+1)).value = MEMdropdowns[i]
            query =  query.eq(DropDowns[i], MEMdropdowns[i])
        }
    }
    query.find()
    .then(async res => {
 let itemData = await res.items          
        console.log(itemData)
        $w('#'+REPEATER).data = itemData
    })
}

Here your example…

And here your DB-PRESET (main)…


https://www.media-junkie.com/pflegeservice