Question

您好我有一节课：

class allConstants {
   //PREDEFINED ALL FIXED GROUPS  USING IN ACCOUNT MODULE 
    const GROUP_BANK_ACCOUNT            = 'Bank Accounts';
    const GROUP_CURRENT_ASSETS          = 'Current Assets';
    const GROUP_LOAN_LIBILITIES         = 'Loan (Liabilities)';
    const GROUP_BANK_OD_ACCOUNT         = 'Bank OD a/c';
    const GROUP_CASH_IN_HAND  
 }

所以我想将这些常量访问到twig文件中。所以，当我在树枝上使用时，如下常数（＆＃39; \埃杜\ AccountBundle \常量\ allConstants :: GROUP_BANK_ACCOUNT＆＃39）;

它表现出一种“常数”的反思错误。没有定义。请指导如何使其工作。我正在使用symfony 2.3.7 提前致谢

Answer 1

{% if gropu is constant('allConstants::GROUP_BANK_ACCOUNT') %}
    the status attribute is exactly the same as allConstants::GROUP_BANK_ACCOUNT
{% endif %}

测试来自对象实例的常量

{% if gropu is constant('GROUP_BANK_ACCOUNT', allConstants) %}
    the status attribute is exactly the same as allConstants::GROUP_BANK_ACCOUNT
{% endif %}

Answer 2

穆罕默德发布的代码是对的：

{% if group is constant('GROUP_BANK_ACCOUNT', allConstants) %}
    the status attribute is exactly the same as allConstants::GROUP_BANK_ACCOUNT
{% endif %}

但你只能使用这样的Twig＆gt; = 1.12.1;对于较低版本，您可以在静态类中使用它，如下所示：

constant('allConstants::GROUP_BANK_ACCOUNT')

如何在twig文件Symfony2中使用访问常量

2 个答案: