如何从 Select2 的 optgroup 中选择子选项？

Question

Question: I have successfully created a select2 template with a group but I can't select the items in it, is there anything missing from the code I made below? Any help from you means a lot to me, thank you

---

See this first, Preview Image

For the data below, i folow https://select2.org/data-sources/formats

Result from AJAX :

{
  "status": true,
  "message": null,
  "data": [
    {
      "text": "Bank",
      "children": [
        {
          "id": "002",
          "icon": ".../payment/bri_1.png",
          "text": "BANK BRI"
        },
        {
          "id": "008",
          "icon": ".../payment/mandiri_1.png",
          "text": "BANK MANDIRI"
        },
        {
          "id": "009",
          "icon": ".../payment/bni_1.png",
          "text": "BANK BNI / SYARIAH"
        },
        {
          "id": "014",
          "icon": ".../payment/bca_1.png",
          "text": "BANK BCA"
        },
        {
          "id": "022",
          "icon": ".../payment/1280px-CIMB_Niaga_logo.svg.png",
          "text": "CIMB NIAGA / SYARIAH"
        },
        {
          "id": "016",
          "icon": ".../payment/Maybank-Logo.png",
          "text": "Maybank"
        },
        {
          "id": "013",
          "icon": ".../payment/images.png",
          "text": "PERMATA BANK"
        },
        {
          "id": "213",
          "icon": ".../payment/Jenius-logo.png",
          "text": "Jenius/BTPN"
        },
        {
          "id": "011",
          "icon": ".../payment/kissclipart-danamon-logo-png-clipart-bank-danamon-logo-a9b2b21755c37a3a.png",
          "text": "Danamon"
        },
        {
          "id": "012",
          "icon": ".../payment/images_1.png",
          "text": "Bank Neo Commerce/Bank Yudha Bakti"
        },
        {
          "id": "017",
          "icon": ".../payment/images-removebg-preview.png",
          "text": "Bank Syariah Indonesia"
        }
      ]
    },
    {
      "text": "eMoney",
      "children": [
        {
          "id": "900",
          "icon": ".../payment/ovo.png",
          "text": "OVO"
        },
        {
          "id": "901",
          "icon": ".../payment/gopay.png",
          "text": "GOPAY"
        },
        {
          "id": "903",
          "icon": ".../payment/dana_1.png",
          "text": "DANA"
        },
        {
          "id": "904",
          "icon": ".../payment/linkaja.png",
          "text": "LINK AJA"
        },
        {
          "id": "906",
          "icon": ".../payment/shopeepay-shopee.co.id_ratio-16x9.jpg",
          "text": "SHOPEE PAY"
        }
      ]
    }
  ]
}

Code :

 $("#payment").select2({ placeholder: 'Payment', width: 'resolve', minimumResultsForSearch: Infinity, templateResult: function formatState(state) { if (!state.id) return state.text; var $state = $( '<span><img src="' + state.icon + '" style="width:30px;"/> ' + state.text + '</span>' ); return $state; }, ajax: { url: base_url + 'user/api/payment', dataType: 'json', processResults: function(data) { return { results: $.map(data.data, function(item, key) { var children = []; for (var k in item.children) { var childItem = []; childItem.id = item.children[k].id; childItem.icon = item.children[k].icon; childItem.text = item.children[k].text; children.push(childItem); } return { text: item.text, children: children, } }) }; }, } });

 <script src="https://cdnjs.cloudflare.com/ajax/libs/select2/4.0.13/js/select2.min.js"></script> <div class="form-group"> <label for="" class="col-sm-2 control-label">Payment</label> <div class="col-sm-10"> <select name="payment" id="payment" class="form-control"> </select> </div> </div>

Answer 1

As far as I can see in your code, your API is returning results already formatted, so keep it simple . Please check this fiddle with a fully working example based on your code.

$("#payment").select2({
placeholder: 'Payment',
width: 'resolve',
ajax: {
    url: 'https://randomuser.me/api/', //a random URL to simulate a request response in jsfiddle
    dataType: 'json',
    processResults: (data) => ({ results: response.data })
}
});