php - Laravel 填充数组元素的验证规则

Question

如果至少有一个数组元素为空，我需要检查输入的字符串数组并发出警告。

使用以下规则:

return Validator::make($data, [
    'branches'         => 'array',
    'branches.*'       => 'filled|max:255'
    ]);

但是似乎填充规则不起作用(而 min:1 工作正常)。
它应该与数组元素一起使用吗？

更新:
分支数组不是强制性的，但如果存在，它应该包含非空元素。

更新:
终于在我的验证规则中发现了错误。
它应该看起来像

return Validator::make($data, [
    'branches'         => 'array',
    'branches.*.*'       => 'filled|max:255'
    ]);

因为输入数组是数组数组。现在填充规则与我的输入数据按预期工作。

Answer 1

使用 required 代替

return Validator::make($data, [
    'branches'         => 'required|array',
    'branches.*'       => 'required|max:255'
]);

来自文档: https://laravel.com/docs/5.5/validation#available-validation-rules

required

The field under validation must be present in the input data and not empty. A field is considered "empty" if one of the following conditions are true:

• The value is null.
• The value is an empty string.
• The value is an empty array or empty Countable object.
• The value is an uploaded file with no path.

如果您只想在存在字段数据时验证数组，请使用 filled .您可以将此与 present 结合使用.

return Validator::make($data, [
    'branches'         => 'present|array',
    'branches.*'       => 'filled|max:255'
]);

filled

The field under validation must not be empty when it is present.

present

The field under validation must be present in the input data but can be empty.