CAKEPHP：使用两个模型使用一个视图和一个控制器在一个表中显示数据错误：未定义的变量：total_hours

Question

What I am trying to do is Getting fetchdata function from Attendence Model and fetch function for Employee Model

My Problems:-

Problem 1 Notice (8): Undefined variable: total_hours [APP\\View\\Employees\\index.ctp, line 32] Problem 2 The Values are not getting inserted in the same table

EmployeesController.php

 <?php class EmployeesController extends AppController { public $uses = array('Employee', 'Attendence'); public function add() { if($this->Employee->add($this->request->data)==true){ $this->redirect(array('action'=>'index')); } } public function index(){ $this->set('employees',$this->Employee->Fetch()); $this->set('attendence',$this->Attendence->fetchdata()); } } 

Attendence.php (MODEL)

class Attendence extends AppModel {

 function add($data){ if (!empty($data)) { $this->create(); if($this->save($data)) { return true ; } } } function fetchdata() { return $this->find('all', array('conditions' => array('Attendence.date' > '2014-04-23', 'AND' => array('Attendences.date' < '2014-04-30') ))); } 

}

Employee.php (Model)

class Employee extends AppModel {

 function add($data){ if (!empty($data)) { $this->create(); if($this->save($data)) { return true ; } } } function Fetch() { return $this->find('all', array( 'fields' => array('Employee.id', 'Employee.firstname','Employee.lastname','Employee.salary') ) ); } } 

index.ctp(VIEW attached with EmployeesController)

<div class="index">
<table>
  <thead>
    <th>Num</th>
    <th>Employee</th>
    <th>Start Date</th>
    <th>End Date</th>
    <th>Salary/Hour</th>
    <th>Total Hour</th>
    <th>Total Salary</th>
    </thead>

<?php
$id = 0;
foreach($employees as $e):?>
 <? $id++ ?>

    <tr>
        <td><?php echo $e{'Employee'}{'id'} ?></td>
        <td><?php echo $e['Employee']['firstname'], $e['Employee']['lastname'] ?></td>
        <td>2014-04-24</td>
        <td>2014-04-29</td>
        <td style="text-align:center"><?php echo $e['Employee']['salary'] ?></td>'
    </tr>

<?php endforeach; ?>

    <?php foreach ($attendence as $et){
            $ts1 = strtotime($et['Attendence']['in_time']);
            $ts2 = strtotime($et['Attendence']['out_time']);
            $diff = abs($ts1 - $ts2) / 3600;
            $total_hours += number_format($diff,2);
          }
          //Total hours
          echo '<td style="text-align:center">'.$total_hours.'</td>';

          //Total Salary
          echo '<td style="text-align:center">'.$total_hours*$e['Employee']['salary'].'</td>';


          ?>
</table>
</div>

<div class="actions">
    <h3>Actions</h3>
    <ul>
        <li><a href="/users/add">New Employee</a></li>
        <li><a href="/user_types">Attendance</a></li>
        <li><a href="/users/add">Salary Calculator</a></li>
        </ul>
</div>

Answer 1

You are using/incrementing a variable that isn't initiated yet.

update this line:

<?php foreach ($attendence as $et){

to:

<?php $total_hours = 0; foreach ($attendence as $et){