opensem/app/DataTables/ParentDataTable.php

<?php

namespace App\DataTables;

use Yajra\DataTables\Html\Button;
use Yajra\DataTables\Html\Column;
use Yajra\DataTables\Html\Editor\Editor;
use Yajra\DataTables\Html\Editor\Fields;
use Yajra\DataTables\Services\DataTable;

class ParentDataTable extends DataTable
{
     /**
     * Build DataTable class.
     *
     * @param mixed $query Results from query() method.
     * @return \Yajra\DataTables\DataTableAbstract
     */
    public function dataTable($query)
    {
        return $this->addButtons(datatables()->eloquent($query));
    }

    /**
     * Add buttons DataTable class.
     *
     * @param mixed $query Results from query() method.
     * @return \Yajra\DataTables\DataTableAbstract
     */
    public function addButtons($datatables)
    {
        return $datatables->addColumn('action', $this->getHtmlButtons());
    }

    public function getHtmlButtons()
    {
        $buttons = '';

        // $buttons .= '<button type="button" data-id="{{$id}}" class="btn btn-xs btn-secondary btn-show mr-2"><i class="fa fa-fw fa-eye"></i></button>';
        // $buttons .= '<button type="button" data-id="{{$id}}" class="btn btn-xs btn-primary btn-edit mr-2"><i class="fa fa-fw fa-leaf-alt"></i></button>';
        $buttons .= '<button type="button" data-id="{{$id}}" class="btn btn-xs btn-primary btn-edit mr-2"><i class="fa fa-fw fa-pencil-alt"></i></button>';
        $buttons .= '<button type="button" data-id="{{$id}}" class="btn btn-xs btn-danger btn-del"><i class="fa fa-fw fa-trash"></i></button>';
        return $buttons;
    }

    public function makeColumnButtons()
    {
        return Column::computed('action')
            ->exportable(false)
            ->printable(false)
            ->searchable(false)
            ->width(120)
            ->addClass('text-center');
    }

    /**
     * Get query source of dataTable.
     *
     * @param \App\Family $model
     * @return \Illuminate\Database\Eloquent\Builder
     */
    public function buildQuery($model)
    {
        return $model->newQuery();
    }


    /**
     * Optional method if you want to use html builder.
     *
     * @return \Yajra\DataTables\Html\Builder
     */
    public function html()
    {
        return $this->buildHtml(strtolower($this->model_name) . '-table');
    }

    /**
     * Optional method if you want to use html builder.
     *
     * @return \Yajra\DataTables\Html\Builder
     */
    public function buildHtml($id)
    {
        return $this->builder()
                    ->setTableId($id)
                    ->parameters($this->getParameters())
                    ->columns($this->getColumns())
                    ->minifiedAjax()
                    ->dom($this->getDom())
                    ->orderBy(0,'asc')
                    ->buttons(
                        Button::make('export'),
                        Button::make('print')
                    );
    }

    public function getParameters()
    {
        return [
            'pageLength' => 10
        ];
    }

    public function getDom()
    {
        $dom = '';
        // $dom .= $this->getDatatablesHeaderDefault();
        $dom .= "tr";
        $dom .= $this->getDatatablesFooterDefault();
        return $dom;
    }

    public function getDatatablesHeader() {
        return view('components.datatables.header');
    }

    public function getDatatablesHeaderDefault() {
        // return "<div class'row'><div class='col'></div></div>";
        /*
        
        $dom = 't<"row datatable-pager light"<"col-md-12"' 
            . '<"datatable-more-export-buttons filter-buttons pull-left">'
            . '<"datatable-more-export-favorites-buttons filter-buttons pull-left">'
            . '<"datatable-more-export-basket-buttons filter-buttons pull-left">'
            . '<"datatable-download-buttons filter-buttons pull-left">'
            . '>>'
            . '<"dt-toolbar-footer"<"col"i><"col pull-right datatable-pager light nopadding-right"p>>';

        */
       
        $dom = "<'row dt-toolbar-header'<'col-lg-4'l><'col-lg-4'B><'col-lg-4 text-right add'f>>";
        return $dom;
        // return 't<"row datatable-pager light"<"col-md-12"<"datatable-more-export-buttons filter-buttons pull-left"><"datatable-more-export-favorites-buttons filter-buttons pull-left"><"datatable-more-export-basket-buttons filter-buttons pull-left"><"datatable-download-buttons filter-buttons pull-left">>><"dt-toolbar-footer"<"col-md-6"i><"col-md-6 pull-right datatable-pager light nopadding-right"p>>';

    }

    public function getDatatablesFooterDefault() {
        return "<'row dt-toolbar-footer'<'col-md-6'i><'col-md-6'p>>";
    }

    /**
     * Get filename for export.
     *
     * @return string
     */
    protected function filename()
    {
        return self::buildFilename($this->model_name);
    }

    /**
     * Get filename for export.
     *
     * @return string
     */
    protected function buildFilename($models_name)
    {
        return $models_name . '_' . date('YmdHis');
    }
}