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Improving Basic Filter Become Advanced Filter in Pods CMS of WordPress

September 26th, 2009 Masino Sinaga

Currently, the Filter Form up to Pods CMS version 1.7.3 still uses the basic form. It has one textbox and one button only. In addition, this filter form can only filter the recordset that returned by its process based on the name field. So I made modification/enhancement by adding combobox that contains of all fields from the table in order to make user easier to choose based which field they will filter, which has default is filter in all fields or any field. Besides that, I also added the search type, whether Match Case or not, Page Limit selection, and the field selection to give user choices sorting the recordset based on the certain field and the certain sort type.

  1. Open \pods\core\list_filters.php file, and find this code:

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    // Display the search box and submit button
$search = empty($_GET['search']) ? '' : $_GET['search'];
?>
        <input type="text" class="pod_search" name="search" value="<?php echo $search; ?>" />
        <input type="submit" class="pod_submit" value="<?php echo $label; ?>" />
    </form>

    then replace with this following code:

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    // Display the search box and submit button
$search = empty($_GET['search']) ? '' : $_GET['search'];
$match = empty($_GET['match']) ? '1' : $_GET['match']; 
$pagelimit = empty($_GET['limit']) ? '10' : $_GET['limit'];
$field = empty($_GET['field']) ? '(Any-field)' : $_GET['field'];
$sortby = empty($_GET['sortby']) ? 'id' : $_GET['sortby'];
$sorttype = empty($_GET['sorttype']) ? 'ASC' : $_GET['sorttype'];
?>
 
<?php 
   $strField = "SHOW FIELDS FROM `wp_pod_tbl_$datatype`";
   $resultField = mysql_query($strField);
   $numberField = mysql_numrows($resultField);
   $arrField[0]='(Any-field)';
   $strSearchField = "";
   for ($i=1; $i<=$numberField; $i++) {
     $arrField[$i] = mysql_result($resultField, $i-1, "Field");
   }
   echo ("<table bgcolor='#F7F7F7' width='100%'>");
   echo ("<tr><td align='right'>Field:</td><td><select name='field'>"); // </td>\n<td>
   for ($i=0; $i<=$numberField; $i++)
   {
     $strSelField = ($arrField[$i]==$field) ? 'selected' : '';
     echo ("<option $strSelField value=\"$arrField[$i]\">$arrField[$i]</option>");
   }
   echo ("</select></td>");
 
   echo ("<td align='right'>Match:</td><td><select name='match'>");
   $SelAny = ($match=='1')?'selected' : '';
   $SelMatch = ($match=='2')?'selected' : '';
   echo ("<option $SelAny value='1'>Any Part</option>");
   echo ("<option $SelMatch value='2'>Match Case</option>");
   echo ("</select></td>");
 
?>
 
   <td align='right'>Page limit:</td><td><select name='limit'>
   <?php 
   for ($x = 5; $x <= 50; $x += 5)
   {
   ?>
     <option  value="<?=$x?>" <?=($pagelimit==$x )?'selected':''?>><?=$x?></option>
   <?php 
   } 
   ?>   
   </select></td><td rowspan="2">&nbsp;<input type="submit" class="pod_submit" value="&nbsp;<?php echo $label; ?>&nbsp;" /></td>
   </tr>
   <tr><td align='right'><?php echo $label; ?>:</td><td><input type="text" size="12" class="pod_search" name="search" value="<?php echo $search; ?>" /></td>
 
<?php 
   echo ("<td align='right'>Sort by:</td><td><select name='sortby'>"); // </td>\n<td>
   for ($i=1; $i<=$numberField; $i++)
   {
     $strSelSortBy = ($arrField[$i]==$sortby) ? 'selected' : '';
     echo ("<option $strSelSortBy value=\"$arrField[$i]\">$arrField[$i]</option>");
   }
   echo ("</select></td>");
 
   echo ("<td align='right'>Sort type:</td><td><select name='sorttype'>");
   $SelAsc = ($sorttype=='ASC')?'selected' : '';
   $SelDesc = ($sorttype=='DESC')?'selected' : '';
   echo ("<option $SelAsc value='ASC'>Asc</option>");
   echo ("<option $SelDesc value='DESC'>Desc</option>");
   echo ("</select></td></tr></table>");	   
?>
 
   </form>
  2. Open \pods\core\Pod.class.php file, and find this code:

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        function findRecords($orderby = 'id DESC', $rows_per_page = 15, $where = null, $sql = null)
    {
        $page = $this->page;
        $datatype = $this->datatype;
        $datatype_id = $this->datatype_id;
        $limit = ($rows_per_page * ($page - 1)) . ', ' . $rows_per_page;
        $where = empty($where) ? '' : "AND $where";
        $this->rpp = $rows_per_page;
        $i = 0;
 
        // Handle search
        if (!empty($_GET['search']))
        {
            $val = mysql_real_escape_string(trim($_GET['search']));
            $search = "AND (t.name LIKE '%$val%')";
        }
 
        // Add "t." prefix to $orderby if needed
        if (false !== strpos($orderby, ',') && false === strpos($orderby, '.'))
        {
            $orderby = 't.' . $orderby;
        }

    then replace with this following code:

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        function findRecords($orderby = 'id DESC', $rows_per_page = 15, $where = null, $sql = null)
    {
        $page = $this->page;
        $datatype = $this->datatype;
        $datatype_id = $this->datatype_id;
        $limit = ($rows_per_page * ($page - 1)) . ', ' . $rows_per_page;
        $match = $_GET['match'];
        $where = empty($where) ? '' : "AND $where";
        $this->rpp = $rows_per_page;
        $i = 0;
 
        // Handle search
        if (!empty($_GET['search']))
        {
           $val = mysql_real_escape_string(trim($_GET['search']));
 
           // Check which field, added by Masino Sinaga, Sept 25, 2009
           if ($_GET['field']!='') {
             if ($_GET['field']=='(Any-field)') {
 
               $strField = "SHOW FIELDS FROM `wp_pod_tbl_$datatype`";
               $resultField = mysql_query($strField);
               $numberField = mysql_numrows($resultField);
               $arrField[0]='(Any-field)';
               $strSearchField = " (";
               for ($i=1; $i<=$numberField; $i++) {
                 $arrField[$i] = mysql_result($resultField, $i-1, "Field");
                 if (($i==1) || (($i<$numberField) && ($i>=1))) {
	           $strSearchField .= ($match=='1') ? " t.$arrField[$i] like '%$val%' OR" : " t.$arrField[$i] like '$val' OR";
	         } else {
	           $strSearchField .= ($match=='1') ? " t.$arrField[$i] like '%$val%' " : " t.$arrField[$i] like '$val' ";
		 }
               }
               $search = " AND ".$strSearchField.") ";		  
	     } else {
               $search = ($match=='1') ? "AND (t.".$_GET['field']." LIKE '%$val%')" : "AND (t.".$_GET['field']." LIKE '$val')";	
	   }						  
         } else {
           $search = ($match=='1') ? "AND (t.name LIKE '%$val%')" : "AND (t.name LIKE '$val')";
         }                        
       }
 
       // Check the sortby and sorttype, added by Masino Sinaga, Sept 25, 2009
       if ($_GET['sortby']!='') {
         if ($_GET['sorttype']!='') {
           $orderby = $_GET['sortby']." ".$_GET['sorttype'];
         }							 
       }
 
       // Add "t." prefix to $orderby if needed
       if (false !== strpos($orderby, ',') && false === strpos($orderby, '.'))
       {
         $orderby = 't.' . $orderby;
       }

Demo:
- http://www.openscriptsolution.com/data/countries/
- http://www.openscriptsolution.com/data/states/
- http://www.openscriptsolution.com/data/bank-in-indonesia/

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