php - init model from controller joomla 3.1 -


i try call model 1 of joomla controller doesn't seem work. 

class tieraerztecontrollerdatatable extends jcontrollerlegacy {         /**          * display task          *          * @return void          */          function display($cachable = false)          {                  // set default view if not set                  $input = jfactory::getapplication()->input;                  $model = $this->getmodel('datatable');                  $model->gettabledata('grumpi_tieraerzte', 'id', array('id','name','strasse','telefon','fax'));                  die();          } }

in model placed var_dump not accessed. how can debug model call in controller?

i try access models return following url /administrator/index.php?option=com_tieraerzte&task=datatable.display&{arguments model}

trying debug codes piece piece seems model accessed , code causing problem

 // paging  $slimit = "";  if (isset(jrequest::getvar('idisplaystart')) && jrequest::getvar('idisplaylength') != '-1')  {      $slimit = "limit " . intval(jrequest::getvar('idisplaystart')) . ", " . intval(jrequest::getvar('idisplaylength'));  }

the whole method:

public function gettabledata($table, $index_column, $columns) {     $db = jfactory::getdbo();     $query = $db->getquery(true);      // paging     $slimit = "";     if (isset(jrequest::getvar('idisplaystart')) && jrequest::getvar('idisplaylength') != '-1')     {         $slimit = "limit " . intval(jrequest::getvar('idisplaystart')) . ", " . intval(jrequest::getvar('idisplaylength'));     }     // ordering      $sorder = "";     if (isset(jrequest::getvar('isortcol_0')))     {         $sorder = "order ";         ($i = 0; $i < intval(jrequest::getvar('isortingcols')); $i++)         {             if (jrequest::getvar('bsortable_' . intval(jrequest::getvar('isortcol_' . $i))) == "true")             {                 $sortdir = (strcasecmp(jrequest::getvar('ssortdir_' . $i), 'asc') == 0) ? 'asc' : 'desc';                 $sorder .= "`" . $columns[intval(jrequest::getvar('isortcol_' . $i))] . "` " . $sortdir . ", ";             }         }          $sorder = substr_replace($sorder, "", -1);         if ($sorder == "order by") {             $sorder = "";         }     }      /*      * filtering      * note not match built-in datatables filtering      * word word on field. it's possible here, concerned efficiency      * on large tables, , mysql's regex functionality limited      */      $swhere = "";      if (isset(jrequest::getvar('ssearch')) && jrequest::getvar('ssearch') != "")     {         $like = '%' . jrequest::getvar('ssearch') . '%';         $swhere = "where (";         ($i = 0; $i < count($columns); $i++)         {             if (isset(jrequest::getvar('bsearchable_' . $i)) && jrequest::getvar('bsearchable_' . $i) == "true")             {                 $swhere .= "`" . $columns[$i] . "` '" . $like . "' or ";             }         }          $swhere = substr_replace($swhere, "", -3);         $swhere .= ')';     }      // individual column filtering      ($i = 0; $i < count($columns); $i++)     {          if (isset(jrequest::getvar('bsearchable_' . $i)) && jrequest::getvar('bsearchable_' . $i) == "true" && jrequest::getvar('ssearch_' . $i) != '')         {             if ($swhere == "")             {                 $swhere = "where ";             } else {                 $swhere .= " , ";             }             $swhere .= "`" . $columns[$i] . "` ? " . $i . " ";         }     }      // sql queries data display      $squery = "select sql_calc_found_rows `" . str_replace(" , ", " ", implode("`, `", $columns)) . "` `" . $table . "` " . $swhere . " " . $sorder . " " . $slimit;     $statement = $this->_db->prepare($squery);       // bind parameters     if (isset(jrequest::getvar('ssearch')) && jrequest::getvar('ssearch') != "")     {         $statement->bind_param('s', $like);     }      ($i = 0; $i < count($columns); $i++)     {         if (isset(jrequest::getvar('bsearchable_' . $i)) && jrequest::getvar('bsearchable_' . $i) == "true" && jrequest::getvar('ssearch_' . $i) != '')         {             $statement->bind_param('s' . $i, '%' . $_get['ssearch_' . $i] . '%');         }     }      $db->setquery($squery);     $res = $db->loadobjectlist();     $rresult = array();      foreach ($res $row)     {         $rresult[] = $row;     }      $ifilteredtotal = current($db->setquery('select found_rows()')->loadresultarray());      // total number of rows in table      $squery = "select count(`" . $index_column . "`) `" . $table . "`";      $itotal = current($db->setquery($squery));      // output      $output = array(         "secho" => intval($_get['secho']),         "itotalrecords" => $itotal,         "itotaldisplayrecords" => $ifilteredtotal,         "aadata" => array()     );      // return array of values      foreach ($rresult $arow)     {         $row = array();         array_push($row, '<input type="checkbox" id="somecheckbox" name="somecheckbox" />');         ($i = 0; $i < count($columns); $i++)         {             //var_dump($arow->$columns[$i]);                 if ($columns[$i] != '')             {                 $row[] = $arow->$columns[$i];             }         }          array_push($row, '             <div class="btn-group" id="status">             <input type="button" class="btn b1" value="on">             <input type="button" class="btn b0 btn-danger" value="off">         </div>         ');          array_push($row, '          <div class="clearfix">            <a href =""><div class="label label-important" style="padding:6px 9px; margin-right:5px"><span class="icon-trash"></span></div></a>            <a href="index.php?option=com_tieraerzte&task=tieraerzt.edit&layout=edit&id=' . $arow->id . '"><div class="label label-success" style="padding:6px 9px"><span class="icon-cog"></span></div></a>          </div>         ');         $output['aadata'][] = $row;     }     echo json_encode($output); }

  1. make sure $model inside controller not null. if it's not null, problem somewhere in model's method called.

  2. if $model null, somehow model calling not loaded. temporary try include file require_once jpath_component . '/models/datatable.php'


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