Php Symfony2选择字段验证不起作用

我在Symfony 2.7.10中有一个表格，其定义如下：

<?php

// ...

class RecipeType extends AbstractType
{
    // ...

    /**
     * @param FormBuilderInterface $builder
     * @param array $options
     */
    public function buildForm(FormBuilderInterface $builder, array $options)
    {
        $builder
            // ...
            ->add('meal_schema', 'choice', [
            'label'   => 'Mealtime schema',
            'choices' => [
                'breakfast'        => 'Breakfast',
                'second_breakfast' => 'Second breakfast',
                'lunch'            => 'Lunch',
                'dinner'           => 'Dinner',
                'snack'            => 'Snack',
                'supper'           => 'Supper',
            ],
            'multiple' => true,
            'expanded' => true,
            'label_attr' => ['class' => 'col-md-2'],
            'required' => true,
        ])
     }

    // ...
}

名称字段验证有效，但mealSchema验证无效。 我已尝试但未成功的设置：

# This one works but assigns error to form instead of field so it's displayed on top of the page
- NotBlank:
    message: Mealtime schema should not be blank

# This doesn't work
- Choice:
    callback: [RecipeMealSchemaChoices, getChoiceKeys] # This method isn't even called
    min: 1
    minMessage: "Please select meal schema"

# This also doesn't work
- Count:
    min: 1
    max: 99
    minMessage: Mealtime schema should not be blank
    maxMessage: Max meal time exceeded

好的，我解决了

我的错误是，在询问stackoverflow时，没有提供实体中有关

mealSchema

字段的信息。如果我这样做，我就会意识到，实体字段实际上是一个

smallint

我的同事想在条令中模拟MySQL“SET”字段类型，所以他使用数组作为入口点值，并在setter方法中将其转换为位值（在getter方法中则相反）

这就是为什么选择相关的验证规则都不起作用。目前，我有两个快速解决方案：

将RecipeType中所有字段的名称从下划线更改为camelCase，因为在实体中它们是这样命名的。这有助于将错误附加到表单而不是字段

使用了

NotNull

验证器，因为

mealSchema

的默认值是

null

，而不是空数组

---

这看起来很有希望，但看起来有很多不必要的工作。验证中的属性名应该与表单中的字段名相同（

mealSchema！==mean\u schema

）。

# This one works but assigns error to form instead of field so it's displayed on top of the page
- NotBlank:
    message: Mealtime schema should not be blank

# This doesn't work
- Choice:
    callback: [RecipeMealSchemaChoices, getChoiceKeys] # This method isn't even called
    min: 1
    minMessage: "Please select meal schema"

# This also doesn't work
- Count:
    min: 1
    max: 99
    minMessage: Mealtime schema should not be blank
    maxMessage: Max meal time exceeded