how to use condition in mRender : datatables php mysql

Question

Hi I am using datatables ,I am getting record properly but from mRender I have 3 record. I want if condition is true then only it will be shown else not . But it not working.

Also how can I use if condition under anchor tag of it , I means like :

<a href="test_list.php?a='+full[20]+'&ab='+full[21]+'" class="click_'+full[22]+'">\n\
     '+full[20]+' - if (full[23] == 87 ) { '+ echo TESTER +' }  \n\  
</a>

Please note in above if condition "TESTER" is Defines a named constant

Below is format :

$(document).ready( function() {
  var oTable = $('#example').dataTable( {
    "bProcessing": true, 
    "bServerSide": true,
    "sAjaxSource": "test_list_db.php",
    "aoColumnDefs": [ {
      "aTargets": [ 2 ],
      "mData": "null",
      "mRender": function ( data, type, full ) {

                if(full[20] != 0 ){
                var status = '<div id="container">\n\
                        <a href="test_list.php?a='+full[20]+'&ab='+full[21]+'" class="click_'+full[22]+'">\n\
                        '+full[20]+' - '+full[23]+'  \n\
                        </a><br \>\n\  </div>';

                } else if(full[21] != 0){   //  -- if this record is ZERO then will not be seen 
               var status = '<div id="container">\n\
                        <a href="test_list.php?a='+full[0]+'&ab='+full[20]+'" class="click_'+full[0]+'">\n\
                        '+full[21]+' - '+full[24]+'  \n\
                        </a><br\>\n\ </div>';
                } else if(full[22] != 0){
               var status = '<div id="container">\n\
                        <a href="test_list.php?a='+full[0]+'&ab='+full[20]+'" class="click_'+full[0]+'">\n\
                        '+full[22]+' - '+full[25]+'  \n\
                        </a><br\>\n\ </div>';
                }
  return status;

      }
    } ]
  } );
} );

please let me know where is wrong and how to use that if condition under anchor tag

Answer 1

you try consolde.log() or alert() to check that if or else if conditions are working properly anf compiler runing inner code of if and else-if, for example

if(full[20] != 0 ){
   var status = '<div id="container">\n\
      <a href="test_list.php?a='+full[20]+'&ab='+full[21]+'" class="click_'+full[22]+'">\n\
      '+full[20]+' - '+full[23]+'  \n\
       </a><br \>\n\  </div>';
   console.log(status);

}

after that check data in your browser console.