Cakephp 3：view.ctp 求和两个变量

Question

我有一个显示相关收入数组的视图。我在控制器中创建了一个集合，以隔离我需要加在一起并显示为货币的两个变量。

public function view($id = null)
    {
        $annualOperatingBudget = $this->AnnualOperatingBudgets->get($id, [
            'contain' => ['Azinstitutions', 'BudgetExpenses', 'BudgetExpenses.ExpenseTitles', 'BudgetRevenues', 'BudgetRevenues.RevenueTitles']
        ]);
        $collection = new Collection($annualOperatingBudget->budget_revenues);
        $revenuesGroup1 = $collection->match(['revenue_title.revenue_group' => 1 ]);
        $revenuesGroup2 = $collection->match(['revenue_title.revenue_group' => 2 ]);
        $tuitionAndFees = $collection->match(['revenue_title.revenue_title' => 'Tuition and Fees']);
        $lessScholarshipAllowance = $collection->match(['revenue_title.revenue_title' => '- less Scholarship Allowance']);

        $this->set(compact('annualOperatingBudget', $annualOperatingBudget,'revenuesGroup1', 'revenuesGroup2', 'tuitionAndFees', 'lessScholarshipAllowance')); 
    }

我可以使用调试工具包查看变量：

annualOperatingBudget (array)
revenuesGroup1 (array)
revenuesGroup2 (array)
tuitionAndFees (array)
  4 (App\Model\Entity\BudgetRevenue)
     id 5
     annual_operating_budget_id 1
     revenue 1278
     revenue_title_id 5
     revenue_title (array)
lessScholarshipAllowance (array)
   5 (App\Model\Entity\BudgetRevenue)
     id 6
     annual_operating_budget_id 1
     revenue -257
     revenue_title_id 6
     revenue_title (array)

我想把两个 'revenue' 加在一起

我试过：

<?= $this->Number->currency(
     ($tuitionAndFees->revenue) + ($lessScholarShipAllowance->revenue), 
    'USD', ['places' => 1]) 
?>

但是我遇到了几个错误：

Notice (8): Undefined property: Cake\Collection\Iterator\FilterIterator::$revenue [ROOT\plugins\Twit\src\Template\AnnualOperatingBudgets\view.ctp, line 49]
Notice (8): Undefined variable: lessScholarShipAllowance [ROOT\plugins\Twit\src\Template\AnnualOperatingBudgets\view.ctp, line 49]
Notice (8): Trying to get property of non-object [ROOT\plugins\Twit\src\Template\AnnualOperatingBudgets\view.ctp, line 49]

Answer 1

在尝试获得收入之前，您必须迭代 $tuitionAndFees 和 $lessScholarShipAllowance 属性。像这样：

foreach($tuitionAndFees as $tuitionAndFee){
    echo $tuitionAndFee->revenue
}

Answer 2

如果视图中只需要所有学杂费的总和，可以使用

$tuitionAndFees = $collection
    ->match(['revenue_title.revenue_title' => 'Tuition and Fees'])
    ->sumOf('revenue');

这将return只是匹配项的总和。为 $lessScholarShipAllowance 做类似的事情，然后在您看来，只需

$this->Number->currency($tuitionAndFees + $lessScholarShipAllowance,
    'USD', ['places' => 1])

Cakephp 3：view.ctp 求和两个变量

Cakephp 3: view.ctp sum two variables

sum

cakephp-3.0