How to save data array

I have array of data that gets input from several models using findbysql. The view renders perfectly in this format

#|building_id | tariff_id | fee_id

[list=1]

[*]|3 | 1 | 3

[*]|2 | 2 |5

[*]|5 | 4 | 2

[*]|1 | 3 | 6

[/list]

The issue is how do i save all this array data rendered by the view using submit button.

The model is InspectionMapping. I think my issue is with the controller, I dont know how to go about it since am new to yii2

[b]

Controller[/b]




    public function actionMappingadmin()

    {




    $sql = "SELECT distinct b.building_id, b.building_name, t.tariff_id, f.fee_id

            FROM building b INNER JOIN building_tariff t ON (t.tariff_id = b.tariff_id)

            INNER JOIN fee f ON (t.tariff_id = f.tariff_id)

            /*WHERE b.building_id NOT IN (select building_id from inspection_booking) */

            WHERE RAND() > 0.667

            ORDER BY building_name

            ";


            $inspectionmapping = InspectionMapping::findBySql($sql)->all();




 

                    $inspectionmapping->building_id=$data['building_id']

                    $inspectionmapping->tariff_id=$data['tariff_id']

                    $inspectionmapping->fee_id=$data['fee_id'];


        } 

         

    }

        return $this->render('mappingadmin', [

        'inspectionmapping' => $inspectionmapping,

    ]);    


    }



View




<div class="mapping-form">

  <?php $form = ActiveForm::begin(['id' => 'mapping-form']); ?>


<h1>Mapping for Inspection</h1>




<!-- Main content -->

<section class="content">

      <div class="row">

        <div class="col-xs-12">


              <table id="example1" class="table table-bordered table-striped">

                <thead>

                <tr>     

                  <th>#</th>

                  <th>Building</th>

                  <th>Tariff</th>

                  <th>Fee</th>

                </tr>

                </thead>

                <tbody>




<?php $i = 1;

foreach($inspectionmapping as $data): ?>

        <tr>

        <td><?php echo $i++;?></td>

        <td class="tbl_column_name"><?=$data->building_id;?></td>

        <td class="tbl_column_name"><?=$data->tariff_id;?></td>

        <td class="tbl_column_name"><?=$data->fee_id;?></td>




        </tr>

    <?php endforeach; ?>


        </tbody>               

  </table>

        </div>

        <!-- /.col -->

      </div>

      <!-- /.row -->

</section>

<!-- /.content -->





<div class="form-group">  

<div class="col-xs-12 col-sm-2 col-lg-2">

  <button id="but1" class="btn btn-primary btn-block btn-lg" name="continue" type="submit">Save</button>

</div>

</div>


<?php ActiveForm::end(); ?>

</div>  <!-- /.End of Inspection Sheet -->


</div>  <!-- /.End of col-xs-12 col-lg-12 -->



I have rendered the view.

Please I need to save this batch of array data