Edit

Datagrid

Philosophy#

The main goal of Nextras\Datagrid is to provide usable API for creating powerful datagrid. Very common disadvantage of others datagrids is the fact you have to use prepared datasources, form filtering inputs, etc. Also, formatting of cell contents is very often uncomfortable; you have to wrap the contents into Nette\Html instances. With Nextras\Datagrid all goes really easy!

Datagrid supports full AJAX support! Use nette.ajax.js.

Columns#

It's really easy to configure which columns should be shown. Example is self-explaining.

$grid = new Nextras\Datagrid\Datagrid;
$grid->addColumn('id');
$grid->addColumn('created_time', 'Account created');
$grid->addColumn('nickname')->enableSort();

The first defined column is considered as primary key column. Of course, you can change it.

$grid->setRowPrimaryKey('nickname');

Datasource#

In Nextras\Datagrid there is no predefined class or something similar. All you need to do is set up a callback, which returns the data.

$grid->setDatasourceCallback(function($filter, $order) {
    // get the data
    return $data;
});

• $filter callback parameter is array which contains key – value filters entered by user. It's totally up to you how you filter the data.
• $order callback parameter is NULL or array which consist of order column and order direction. Eg. array('id', 'DESC').

Possible NAIVE implementation for Nette\Database could look like this:

$grid->setDatasourceCallback(function($filter, $order) {
    $filters = array();
    foreach ($filter as $k => $v) {
        if ($k == 'id' || is_array($v))
            $filters[$k] = $v;
        else
            $filters[$k. ' LIKE ?'] = "%$v%";
    }

    $selection = $this->connection->table('user')->where($filters);
    if ($order[0])
        $selection->order(implode(' ', $order));

    return $selection;
});

Cell rendering#

Would you like print clickable nickname? See how difficult is it in another datagrids. In Nextras\Datagrid it's a piece of cake!

$grid->addCellsTemplate('./grid.columns.latte');

File grid.columns.latte:

{define col-nickname}
<td>
    <a href="{plink Users: id => $row->id}">{$cell}</a>
</td>
{/define}

Here is list of available blocks for redefinition:

Block name	Description
	Variables
table-open-tag	html <table> tag
	–
table-close-tag	html </table> tag
	–
global-actions	the top right table cell for some global actions
	–
global-filter-actions	cell with the buttons for filtering
	$showCancel
row-edit-actions	cell for rendering save & cancel buttons while editing row
	–
row-actions	cell for rendering row's actions
	$primary, $row
col-filter-*	custom filter cell rendering
	$form – filter IFormContainer, $column – column object
col-filter	global custom filter cell rendering; this block has lower priority than col-filter-*
	same variables as for col-filter-*
col-*	custom cell rendering; only this block must include <td> tags;
	$row, $cell

Filtering#

Yes, you want filter created_time column in some date range. And your previous datagrid can't do it. Fortunately, there is awesome Nextras\Datagrid approach. All you need to do is create Nette\Forms\Container and set up inputs corresponding to columns, which you want to filter.

$grid->setFilterFormFactory(function() {
    $form = new Nette\Forms\Container;
    $form->addDateTimePicker('created_time');
    $form->addSearchInput('nickname', ...);

    // set your own fileds, inputs

    // these buttons are not compulsory
    $form->addSubmit('filter', 'Filter data')->getControlPrototype()->class = 'btn btn-primary';
    $form->addSubmit('cancel', 'Cancel filter')->getControlPrototype()->class = 'btn';

    return $form;
});

Inline editing#

Would you like edit your data inline? No problem. Again, define you form container personally. Nextras\Datagrid won't obstruct your efforts!

$grid->setEditFormFactory(function($row) {
    $form = new Nette\Forms\Container;
    $form->addDateTimePicker('created_time');
    $form->addText('nickname')
        ->setRequired();
        // set your own conditions

    // set your own fileds, inputs

    // these buttons are not compulsory
    $form->addSubmit('save', 'Save data')->getControlPrototype()->class = 'btn btn-primary';
    $form->addSubmit('cancel', 'Cancel editing')->getControlPrototype()->class = 'btn';

    if ($row) {
        $form->setDefaults($row);
    }
    return $form;
});