One table - One Column - One Primary Key

Hi,

I am using the Editor (1.2.3) with the PHP library for users to modify a table (admin_user) which has only one column (username) and that column is the primary key.

On update, I get a "Undefined offset: 0 in ...datatable/php/lib/Editor/Editor.php on line 544". Which is fair, it's a primary key, you wouldn't want to be able to do that usually... Also I want to here :D And the field actually get modified in the DB but the user sees the "an error has occured ..." message.

On delete, everything goes fine.

On create, I get a "offset: 0 in ...datatable/php/lib/Editor/Editor.php on line 507" (The row gets added in the DB and I get the "an error has occured ..." as well here). And it's my understanding that this should not happen and I have the feeling I am doing something wrong: I just can't figure out what, so here is my code!!


The JS and HTML:

        var editor; 

        $(document).ready(function() {
            editor = new $.fn.dataTable.Editor( {
                "ajaxUrl": "assets/datatable/php/ajax_adminusers.php",
                "domTable": "#example",
                "fields": [ {
                        "label": "User Name (NT ID):",
                        "name": "username"
                    }
                ]
            } );

			// New record
			$('#btn_editor_create').click(function (e) {
				e.preventDefault(); 
				editor.create(
					'Create new record',
					{ "label": "Add", "fn": function () { editor.submit() } }
				);
			} );
         
            // Edit record
            $('#example').on('click', 'a.editor_edit', function (e) {
                e.preventDefault();
                editor.edit(
                    $(this).parents('tr')[0],
                    'Edit record',
                    { "label": "Update", "fn": function () { editor.submit() } }
                );
            } );
         
            // Delete a record (asking a user for confirmation)
            $('#example').on('click', 'a.editor_remove', function (e) {
                e.preventDefault();
                editor.message( "Are you sure you want to remove this row?" );
                editor.remove( $(this).parents('tr')[0], 'Delete row', {
                    "label": "Confirm",
                    "fn": function () { this.submit(); }
                });
            });

            $('#example').dataTable( {
                "sDom": "lfrtip",
                "iDisplayLength": 50,
                "sAjaxSource": "assets/datatable/php/ajax_adminusers.php",
                "aoColumns": [
                    { "mData": "username" },
                    {
                        "mData": null,
                        "sClass": "center",
                        "sDefaultContent": '<a href="" class="editor_edit">Edit</a> / <a href="" class="editor_remove">Delete</a>'
                    }
                ]
            });
        } );
    </script>
    
    <div class="container">
        <div class="row">
        <button type="button" id="btn_editor_create" class="btn btn-primary">Create New Record</button>
        <br>
        <br>
        <table  style="width:100% !important; cellpadding:0; cellspacing:0; border:0;" class="table table-striped table-condensed" id="example">
            <thead>
                <tr>
                    <th>Username</th>
                    <th>Admin</th>
                </tr>
            </thead>
        </table>
    </div>

And the PHP:

include( "lib/DataTables.php" );

use
	DataTables\Editor,
	DataTables\Editor\Field,
	DataTables\Editor\Format,
	DataTables\Editor\Join,
	DataTables\Editor\Validate;

Editor::inst( $db, 'admin_user', 'username' )
    ->fields(
        Field::inst( 'username' )->validator( 'Validate::required' )
    )
    ->process( $_POST )
    ->json();

Any help/pointer/suggestion would be appreciated!

Thanks