How to use If clause with $w(#repeater)forEachItem ...

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1

I want to use an IF clause inside a $w(#repeater)forEachItem (see below), but it does not work. Can anyone tell me how to do it.
Thx Stephan

export function makeRepeater2 () {
$w (“#repeater1”).forEachItem( ($item, itemData, index) => (

if (itemData.plz.length === 0) {
console.log(“Undefined PLZ”)
itemData.plz = “”
}
}

2

The problem is somewhere else.
Maybe the itemData.plz is undefined and thus has no length.
Also it is not clear what exactly you’re trying to achieve by changing the value of the itemData.

3

Thanks so far.
In my dataset is a field “plz“ that is sometimes empty. When I transfer plz into string the repeater shows there a text „undefined“, this I want to avoid with an if clause, but the if clause is not accepted there.
Hope you or someone knows what is wrong. Thx!

4

Hi again,
Hi again,fem is - general speaking- how to manipulate data of a dataset going into a repeater. I have empty fileds in my dataset that then show show a “undefined” in the repeater view. This what I want to avoid.
Below my code so far. The code marked out in the onReady section was for testing, I thought it may work that way, seems not possible.
Thx again for any help.
Stephan

import wixData from ‘wix-data’;
let ddf_Kategorie; ddf_Kategorie = “”;
let sf_Jahr; sf_Jahr= 2000;
let sf_Bereich; sf_Bereich = 20;
let ef_Text; ef_Text = “”
// const totalItems = $w(“#dataset1”).getTotalCount();
// console.log(totalItems)
$w.onReady(() => {
$w(“#dataset1”).onReady(() => {
// setTimeout (() => {
$w(“#dataset1”).getItems(0, 1000)
.then ((allRecords) => {
// let countRecords = allRecords.items.lengh;
// console.log (countRecords)
// if (countRecords === 0) {
// console.log(“RecordCount=0”);
// } else {
// console.log(“RecordCount>0”);
// }
// if (allRecords.items.hausnummer === 1 ) {
// console.log(“Hausnummer =1”)
// allRecords.items.hausnummer = 1
// } else {
// console.log(“Hausnummer not 1”);
// allRecords.items.hausnummer = 999
// }
// console.log (allRecords)
})

console.log (“OnReadyDataSet”)
giveFilter()
})
})
export function input1_keyPress(event) {
setTimeout (() => {
ef_Text = $w (“#input1”).value
console.log(ef_Text)
giveFilter()
},500)
}

export function dropdown1_change(event) {
ddf_Kategorie = $w (‘#dropdown1’).value;
if ((ddf_Kategorie) === “Alle Kategorien”) { ddf_Kategorie = “”}
console.log(ddf_Kategorie)
giveFilter()
}
export function slider1_change(event) {
sf_Jahr = $w (“#slider1”).value
console.log(sf_Jahr)
giveFilter()
}
export function slider2_change(event) {
sf_Bereich = $w (“#slider2”).value
console.log(sf_Bereich)
giveFilter()
}
export function giveFilter () {
setTimeout( () => {
$w(‘#dataset1’).setFilter(wixData.filter()
.contains (‘abbildung’, ef_Text)
.contains(‘kategorie’, ddf_Kategorie)
.between (‘aufnahmejahr’, sf_Jahr - sf_Bereich - 0.5, sf_Jahr + sf_Bereich + 0.5))
console.log (“GiveFilter”)
makeRepeater()
},900)
}
export function makeRepeater () {
setTimeout( () => {
$w (“#repeater1”).forEachItem( ($item, itemData, index) => (

$item(“#text9”).text = itemData.plz + " " + itemData.ortsname
))
console.log (“MakeRepeater”)
makeRepeater1()
},900)
}
export function makeRepeater1 () {

setTimeout( () => {
$w (“#repeater1”).forEachItem( ($item, itemData, index) => (
// $w(‘#text10’).hide()
$item(“#text10”).text = itemData.stasse + " " + itemData.hausnummer
))
console.log (“MakeRepeater1”)
},900)
}

5

I didn’t read your entire code but it should be something like:

$w ("#repeater1").forEachItem( ($item, itemData, index) => (
let itemText = "";
if (itemData.plz){ itemText = itemData.plz };
   $item("#text9").text = itemText;
})
6

THANKS for your prompt answer.
It seems in my export function “makeRepeater” the “let” and also the “if” statement is not allowed?? Any idea what to do?
Big THANKS again

7

Actually I don’t fully understand your code. I don’t know why you needed to use “export” there and why you’re using timeout, I also don’t see where you cal the makeRepeater() function.
I believe that if you organize your code in a more logical way, get rid of all these extra comments inside, unnecessary exports etc… it’ll be easier to read, understand and fix.

8

Now I found how it works:

import wixData from ‘wix-data’;
let ddf_Kategorie; ddf_Kategorie = “”;
let sf_Jahr; sf_Jahr= 2000;
let sf_Bereich; sf_Bereich = 20;
let ef_Text; ef_Text = “”
let itemHausnummer = “”
let itemAbstand = “”
$w.onReady (() => {
$w (“#repeater1”).onItemReady( ($item, itemData, index) => {
if (itemData.hausnummer === undefined) {itemAbstand = “”; itemHausnummer = “”}
else {itemAbstand = " “; itemHausnummer = itemData.hausnummer}
$item(”#text9").text = itemData.plz + " " + itemData.ortsname
$item(“#text10”).text = itemData.stasse + itemAbstand + itemHausnummer
giveFilter()
})
})

export function input1_keyPress(event) {
setTimeout (() => {
ef_Text = $w (“#input1”).value
console.log(ef_Text)
giveFilter()
},500)
}

export function dropdown1_change(event) {
ddf_Kategorie = $w (‘#dropdown1’).value;
if ((ddf_Kategorie) === “Alle Kategorien”) { ddf_Kategorie = “”}
console.log(ddf_Kategorie)
giveFilter()
}
export function slider1_change(event) {
sf_Jahr = $w (“#slider1”).value
console.log(sf_Jahr)
giveFilter()
}
export function slider2_change(event) {
sf_Bereich = $w (“#slider2”).value
console.log(sf_Bereich)
giveFilter()
}
export function giveFilter () {
$w(‘#dataset1’).setFilter(wixData.filter()
.contains (‘abbildung’, ef_Text)
.contains(‘kategorie’, ddf_Kategorie)
.between (‘aufnahmejahr’, sf_Jahr - sf_Bereich - 0.5, sf_Jahr + sf_Bereich + 0.5))
}