Is it possible to use nested loops in parser templates?

Is it possible to use nested loops in parser templates? - Printable Version

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+--- Thread: Is it possible to use nested loops in parser templates? (/showthread.php?tid=72974)

Is it possible to use nested loops in parser templates? - HardyW - 03-06-2019

I am not sure if nested loops are supported by the parser, at least I am not able to display the following template correctly:

Code:
<table class="data_table">

  <thead>

    <tr>

      {header_entries}

        <th>{header_title}</th>

      {/header_entries}

    </tr>

  </thead>

  <tbody>

    {data_entries}

      <tr>

        {data_row}

          <td>{data_cell}</td>

        {/data_row}

      </tr>

    {/data_entries}

  </tbody>

</table>

The headers works but not the table's body when using these data:

Code:
   $header_entries = [['header_title' => 'one'],

                       ['header_title' => 'two']];

    $data_entries = [['data_row' => [['data_cell' => 'one - one'],

                                     ['data_cell' => 'one - two']],

                      'data_row' => [['data_cell' => 'two - one'],

                                     ['data_cell' => 'two - two']]]];

    $parser = \Config\Services::parser();

    echo $parser->setData(['header_entries' => $header_entries,

                           'data_entries' => $data_entries])->render('templates/data_table_template');

RE: Is it possible to use nested loops in parser templates? - ciadmin - 03-06-2019

If you want nested variables to also see the level above them, then you need to pass true as a second parameter to the render() call. See https://codeigniter4.github.io/CodeIgniter4/outgoing/view_renderer.html#view-renderer-options

RE: Is it possible to use nested loops in parser templates? - HardyW - 03-07-2019

(03-06-2019, 05:37 PM)ciadmin Wrote: If you want nested variables to also see the level above them, then you need to pass true as a second parameter to the render() call. See https://codeigniter4.github.io/CodeIgniter4/outgoing/view_renderer.html#view-renderer-options

No, this is not I would like to do. I just would like to have two nested loops. But this does not seem to work because the output is:

Quote:-->header: one two
-->body: two - one two - two

The header loop is correct but the second (inner) loop is not. Only the last result of the loop is used.

RE: Is it possible to use nested loops in parser templates? - ciadmin - 03-14-2019

The view parser supports "cascading data", but not "nested loops" the way you are looking for.
I suggest adding a feature request for this, if needed for your app... https://forum.codeigniter.com/forum-29.html