Update Database After Clicking Save Button

Question

I have a dynamic table that can be edited inline or can have rows dynamically added. I want to be able to hit a save button that runs an UPDATE query to update the database. But I can't figure out how. I am really stuck on this and would appreciate any help.

My DB connection:

<?php
$host="xxxxx"; 
$dbName="xxxxxxxx"; 
$dbUser="xxxx"; 
$dbPass="xxxxxxxxxxxxx";

$dbh = new PDO( "sqlsrv:server=".$host."; Database=".$dbName, $dbUser, $dbPass);
$dbh->setAttribute( PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION );
$sql = "SELECT * FROM Stage_Rebate_Master ORDER BY MR_ID ASC";
?>

HTML/PHP:

<div id="users-contain" class="ui-widget">
<table id="html_master" class="ui-widget ui-widget-content">
<thead>
    <tr class="ui-widget-header">
    <td>ID</td>
    <td>Vendor</td>
    <td>Buyer ID</td>
    <td>POC Name</td>
    <td>POC Email</td>
    <td>POC Phone</td>
    <td>Edit/Delete</td>
    </tr>
</thead>
<tbody>

<?php
    foreach ($dbh->query($sql) as $rows){
    ?>
    <tr>
        <td class="mr_id" contenteditable="false"><?php echo intval ($rows['MR_ID'])?></td>
        <td class="mr_name" contenteditable="false"><?php echo $rows['MR_Name']?></td>
        <td class="buyer_id" contenteditable="false"><?php echo $rows['Buyer_ID']?></td>
        <td class="poc_n" contenteditable="false"><?php echo $rows['MR_POC_N']?></td>     
        <td class="poc_e" contenteditable="false"><?php echo $rows['MR_POC_E']?></td>
        <td class="poc_p" contenteditable="false"><?php echo $rows['MR_POC_P']?></td>
        <td><input type="button" class="edit" name="edit" value="Edit">
        <input type="button" class="deactivate" name="deactivate" value="Deactivate"></td>
    </tr>
 <?php
  }
 ?>
</tbody>

    <input type="button" class="create-user" value="Add Row">
    <input type="submit" value="Save Table" class="save">

</table>
</div>

    <input type="button" class="create-user" value="Add Row">
    <input type="submit" value="Save Table" class="save">

JavaScript:

// ----- Deactivate/Activate Row -----

$(document).on("click", "#html_master .deactivate", function () {
  var $this = $(this);
  var $tr = $this.closest('tr');
  var action = $tr.hasClass('deactivated') ? 'activate' : 'deactivate';

  // ------ Confirmation box in order to deactivate/activate row -----
  if (confirm('Are you sure you want to ' + action + ' this entry?')) {
    $tr.toggleClass('deactivated');
    $this.val(function (i, t) {
      return t == 'Deactivate' ? 'Activate' : 'Deactivate';
    });
  }
});

// ----- Edit Row -----

$(document).on("click", "#html_master .edit", function () {
  var $this = $(this);
  var tds = $this.closest('tr').find('td').not('.mr_id').filter(function () {
    return $(this).find('.edit').length === 0;
  });
  if ($this.val() === 'Edit') {
    $this.val('Save');
    tds.prop('contenteditable', true);
  } else {
    var isValid = true;
    var errors = '';
    $('#myDialogBox').empty();
    // changed from here.......
    var elements = tds;
    if (tds.find('input').length > 0) {
      elements = tds.find('input');
    }
    elements.each(function (index, element) {
      var type = $(this).attr('class');
      var value = (element.tagName == 'INPUT') ? $(this).val() : $(this).text();
      // changed from here....... to here
      // ----- Switch statement that provides validation -----
      switch (type) {
        case "buyer_id":
          if (!$.isNumeric(value)) {
            isValid = false;
            errors += "Please enter a valid Buyer ID\n";
          }
          break;
        case "poc_n":
          if (value == value.match(/^[a-zA-Z\s]+$/)) {
            break;
          }
          else {
            isValid = false;
            errors += "Please enter a valid Name\n";
          }
          break;
        case "poc_e":
          if (value == value.match(/^[\w\-\.\+]+\@[a-zA-Z0-9\.\-]+\.[a-zA-z0-9]{2,4}$/)) {
            break;
          }
          else {
            isValid = false;
            errors += "Please enter a valid Email\n";
          }
          break;
        case "poc_p":
          if (value == value.match('^[0-9 ()+/-]{10,}$')) {
            break;
          }
          else {
            isValid = false;
            errors += "Please enter a valid Phone Number\n";
          }
          break;
      }
    })
    if (isValid) {
      $this.val('Edit');
      tds.prop('contenteditable', false);
    } else {
      alert(errors);
    }
  }
});

// ----- Dialog Box -----

$( function() {   

    var dialog, form,

      emailRegex = /^[a-zA-Z0-9.!#$%&'*+\/=?^_`{|}~-]+@[a-zA-Z0-9](?:[a-zA-Z0-9-]{0,61}[a-zA-Z0-9])?(?:\.[a-zA-Z0-9](?:[a-zA-Z0-9-]{0,61}[a-zA-Z0-9])?)*$/,
      phoneRegex = /^(?:(?:\+?1\s*(?:[.-]\s*)?)?(?:\(\s*([2-9]1[02-9]|[2-9][02-8]1|[2-9][02-8][02-9])\s*\)|([2-9]1[02-9]|[2-9][02-8]1|[2-9][02-8][02-9]))\s*(?:[.-]\s*)?)?([2-9]1[02-9]|[2-9][02-9]1|[2-9][02-9]{2})\s*(?:[.-]\s*)?([0-9]{4})(?:\s*(?:#|x\.?|ext\.?|extension)\s*(\d+))?$/,
      mr_name = $( "#mr_name" ),
      buyer_id = $( "#buyer_id" ),
      poc_n = $( "#poc_n" ),
      poc_e = $( "#poc_e" ),
      poc_p = $( "#poc_p" ),
      allFields = $( [] ).add( mr_name ).add( buyer_id ).add( poc_n ).add( poc_e ).add( poc_p ),
      tips = $( ".validateTips" );
  console.log(allFields);

    function updateTips( t ) {
      tips
        .text( t )
        .addClass( "ui-state-highlight" );
      setTimeout(function() {
        tips.removeClass( "ui-state-highlight", 1500 );
      }, 500 );
    }

    function checkRegexp( o, regexp, n ) {
      if ( !( regexp.test( o.val() ) ) ) {
        o.addClass( "ui-state-error" );
        updateTips( n );
        return false;
      } else {
        return true;
      }
    }

    function addVendor() {
      var valid = true;
      allFields.removeClass( "ui-state-error" );

      valid = valid && checkRegexp( mr_name, /^[a-z]([0-9a-z_\s])+$/i, "Please enter a valid vendor name" );
      valid = valid && checkRegexp( buyer_id, /^(0|[1-9][0-9]*)$/, "Please enter a valid Buyer ID" );
      valid = valid && checkRegexp( poc_n, /^[a-zA-Z ]*$/, "Please enter a valid name" );
      valid = valid && checkRegexp( poc_e, emailRegex, "Please enter a valid email" );
      valid = valid && checkRegexp( poc_p, phoneRegex, "Please enter a valid phone number" );

      if ( valid ) {
        var $tr = $( "#html_master tbody tr" ).eq(0).clone();
        $.each(allFields, function(){
          $tr.find('.' + $(this).attr('id')).html( $(this).val() );
        });
        $tr.find('.mr_id').html( $( "#html_master tbody tr" ).length + 1 );
        $( "#html_master tbody" ).append($tr);
        dialog.dialog( "close" );
      }
      return valid;
    }

    var dialog = $( "#dialog-form" ).dialog({
      autoOpen: false,
      height: 400,
      width: 350,
      modal: true,
      buttons: {
        "Add Row": addVendor,
        Cancel: function() {
          dialog.dialog( "close" );
        }
      },
      close: function() {
        form[ 0 ].reset();
        allFields.removeClass( "ui-state-error" );
      }
    });

    form = dialog.find( "form" ).on( "submit", function( event ) {
      event.preventDefault();
      addVendor();
    });

    $( ".create-user" ).button().on( "click", function() {
      dialog.dialog( "open" );
    });
  } );


// ----- Save Table -----
$(document).on("click", ".save", function () {

  // ------ Confirmation box in order to deactivate/activate row -----
  if (confirm('Saving will update the entire table. Are you sure you want to save?')) {
      // yourformelement.submit();
  } else {
      return false;
  }
});

Answer 1

In your save button click event, write following code:

// ----- Save Table -----
$(document).on("click", ".save", function () {

  // ------ Confirmation box in order to deactivate/activate row -----
  if (confirm('Saving will update the entire table. Are you sure you want to save?')) {
  var tabledata=[];
  $( "#html_master tbody tr" ).each(function( index ) {
      tabledata[index] = {
          mr_id: $( this ).find("td.mr_id").text(),
          mr_name: $( this ).find("td.mr_name").text(),
          buyer_id: $( this ).find("td.buyer_id").text() //add rest of the fields
      };

});
    //now call a normal ajax request to your php process page

    $.ajax({
        url: "process.php",
        type: "post",
        data: {data: tabledata},
        success: function(result){
            //do whatever you want
        }
    })

      // yourformelement.submit();
  } else {
      return false;
  }
});

In your php process page (I assumed process.php), you can now retrieve these post data and run sql query

$data = $_POST['data'];
foreach($data as $row){
    // now you have $row['mr_id'], $row['mr_name'] etc. do normal sql update query in each loop. I suppose mr_id is the primary key. so use it in where clause
}

This is the general idea of saving this whole table at once using ajax. Also note that I didn't test the code. There can be errors. Though there are some rich 3rd party scripts which looks good and make it easier to use.

Rather than saving all rows together which can become slow, I think it is better to save each row separately as there is already a save button when you click edit each row. In that case code needs to be modified a bit.

Hope it will help. Let me know if any clarification needed!