Opening modal in list in Scala HTML

Question

I am trying to open a modal window in a list of items (attachments more specifically) and I cant seem to get the record ID from the list. I open the new modal window with Scala, and I always get error because value record is invalid.

@(recordList: List[assets.Attachment])

@if(recordList == null || recordList.isEmpty()) {
} else {
    <div class="table-responsive">
        <table id="attachment-player-datatable" class="table table-striped 
            table-bordered table-vcenter">
            <thead>
            <tr>
                <th class="text-center"><small>Naziv</small></th>
                <th><small>Datum</small></th>
                <th class="text-center"><small><i class="fa fa-flash"></i></small></th>
            </tr>
            </thead>
            <tbody>
            @for(record <- recordList) {
                <tr id="attachment-@record.getId()">
                    <td><strong><a href="@record.getUrl()">@record.getTitle()</a></strong></td>
                    <td>@record.getFormattedOnlyDate()</td>
                    <td class="text-center">
                        <a id="delete-attachment-action" href="#modal-new-player-attachment" data-toggle="modal" data-id="@record.getId()" class="btn btn-sm btn-danger">
                            <i class="fa fa-trash"></i>
                        </a>
                        <i id="delete-attachment-loader" class="fa fa-spinner 
                       fa-2x fa-spin text-primary" style="display:none;"></i>
                    </td>
                </tr>
            }
            </tbody>
        </table>
    </div>
}
@playerFolder.attachmentRemoveModal(record.getId())

Answer 1

I believe your error is being caused by this line:

@playerFolder.attachmentRemoveModal(record.getId())

This reference to record is outside the for loop it is defined in ( @for(record <- recordList) {...} ). You can't reference variables outside where they are defined (without importing or doing something similar... not applicable here). For example:

scala> val list = List(1, 2, 3)
list: List[Int] = List(1, 2, 3)

scala> for (elem <- list) {
     |   println(elem)
     | }
1
2
3

scala> elem
<console>:12: error: not found: value elem
       elem
       ^

In this scenario, elem is only available inside the for loop. If you try to reference it outside the loop, the compiler doesn't know what you're trying to reference and complains.