Database Drupal 7 theme_table example

Database Drupal 7 theme_table example
<?php
//;$Id$

/**
 * @file
 * Enables a single blog for an individual or multiple users.
 */
// After you learn Form API in Chapter 5, you'll be able to
// make these settings configurable.

function deductible_help($section) {
      switch ($section) {
        case 'admin/help#deductible':
          return t('This module stores deductible for given make an Model');
      }
}

function deductible_menu(){
$items['deductible/calculate']=array(
'title'=>'Calculate Deductible',
'page callback'=>'drupal_get_form',
'page arguments'=>array('deductible_simple_form'),
'access arguments' => array('administer user'),
'type' => MENU_CALLBACK,
);
//watchdog('Deductibe', '1', array(), WATCHDOG_DEBUG);
$items['deductible/display_results'] = array(
        'access arguments' => array('administer user'),
        'page callback' => 'display_results',
        'access callback' => TRUE,
        'type' => MENU_CALLBACK,
);
//watchdog('Deductibe', '2', array(), WATCHDOG_DEBUG);
return $items;
}

/*
function calculator_jquery_menu() {
  $items['calculator_jquery'] = array(
    'title' => "Craig's jquery calculator module",
    'description' => 'Demonstration of various JavaScript utilities',
    'page callback' => 'calculator_jquery_p',
    'access callback' => TRUE,
  );
  return $items;
}

function calculator_jquery_p(){
  // Set the path to our script.
  $script = drupal_get_path('module', 'calculator_jquery') . '/calculator_jquery.js';

  // Include a JavaScript file.
  $js = drupal_add_js($script);

 $build = array(
 //  '#type' => 'markup',
 //  '#markup' => '<p>This is an examples page.</p>',
  );

  return $build;
}*/

/*function my_color_data_entry_form_validate($node, &$form_state) {
    $user_entered_color = $form_state['values']['color'];
    $allowed_colors = array("red","blue","white");
    if (! in_array( trim($user_entered_color),$allowed_colors,false)) {
       form_set_error('color',
          "Invalid Entry, you must enter either red, white or blue"
       );
    } else {
     drupal_set_message(
      "You submitted a valid color: ".$form_state['values']['color']
     );
    }
}*/


function deductible_simple_form($form,&$form_submit){
      $form_state['redirect'] = 'deductilbe/display_results';
      $form['Make'] = array(
        '#type' => 'textfield',
        '#title' => t('Make'),
          '#size' => 30,
             '#cols' => 30,
          '#required'=>true,
        '#default_value'=>' ',
           '#rows' => 1,
        '#maxlength'=>30,
    //    '#weight'=>1,
      );
        $form['Model'] = array(
        '#type' => 'textfield',
        '#title' => t('Models'),
        '#size' => 30,
          '#cols' => 30,
        '#required'=>true,
        '#default_value'=>' ',
        //'#weight' => 7,
        '#rows' => 1,
        '#maxlength'=>30,
    //    '#weight'=>2,
      );
      $form['Deductible'] = array(
        '#type' => 'textfield',
        '#title' => t('Deductible'),
        '#size' => 30,
          '#cols' => 30,
          '#required'=>true,
        '#default_value'=>' ',
          //'#weight' => 7,
          '#rows' => 1,
        '#maxlength'=>30,
      //  '#weight'=>3,
      );
      $form['submit'] = array(
        '#type' => 'submit',
        '#value' => t('Save'),
          //'#weight' => 7,
        '#submit' => array('deductible_submit'),
     //  '#weight'=>4,
      );
      return $form;
}

/**
 * Implementation of hook_perm().
 */
function deductible_perm() {
  return array('use save and edit', 'administer save and edit');
}

function display_results()
{
   // $db_result = db_query( "select name from {Deductible} ");
 /*   $db_result  = db_select('Deductible')
     ->fields(array('userid', 'Make', 'Model', 'Deductible'))
     ->orderBy('Make', 'DESC')
     ->execute();*/
   
/*    $result  = db_select('Deductible', 'c')
    ->fields('c',array('Make'))
    ->execute();*/
      $result = db_query("SELECT userid,make,model,deductible FROM {Deductible}");
     $listitems=array();
     $bigitems = array();
        foreach ($result as $node) {
         watchdog('Deductibe', 'hi', array(), WATCHDOG_DEBUG);
         $listitems=array($node->make,
            $node->model,
            $node->deductible);
           $bigitems[]=$listitems;
       }
     
    //   return print_r($bigitems);
    if (count($listitems) == 0)
        $make[] = array("No Models Entered Yet");
     else{
          watchdog('Deductibe', 'a', array(), WATCHDOG_DEBUG);
         }
       
      $link_to_add_form = l('Add More Models','deductible/calculate');
        $variable=array(
             'header' =>  array(t('Make'), t('Model'),t('Deductible')),
             'rows'  =>  $bigitems,
             'attributes' => array(),
             'caption' => NULL,
             'colgroups' => NULL,
             'sticky' => NULL,
             'empty' => NULL,
         );
        // return print_r($items);
    return theme_table($variable).'<br/>'.$link_to_add_form;
}

function deductible_submit($form, &$form_state){
  global $user;
  $userid = $user->uid;
  $Make = $form_state['values']['Make'];
  $Model = $form_state['values']['Model'];
  $Deductible = $form_state['values']['Deductible'];
/*  $calcdate = strtotime($formdate);
  $timeperiod = 90*86400;
  $formdatestore = $calcdate + $timeperiod;    */

  //      watchdog('Deductibe', 'deductible', array(), WATCHDOG_DEBUG);
   
      $insertquery = db_insert('Deductible')->fields(array(
    //  'userid' => $userid,
//      'insertdate' => $formdatestore,
      'Make'=>$form_state['values']['Make'],
       'model'=>$form_state['values']['Model'],
       'deductible'=>$form_state['values']['Deductible']
      ))->execute();
      if($insertquery!==false){
           $message = 'You have submitted the '  . ' form which contains the following data:<pre>' . print_r($form_state['values']['Make'],true) . '</pre>';
         drupal_set_message(t($message));
         $form_state['redirect'] = 'deductible/display_results';
      }else{
          drupal_set_message(t('Error-Contact Administrator'));
      }
    }