rest_get_combining_operation_error()
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概述
rest_get_combining_operation_error() 函数用于获取组合操作中的验证错误,主要处理 REST API 中参数验证时多个错误场景的筛选和格式化。它通过分析错误数组,返回一个合适的 WP_Error 对象,以提供清晰的错误信息。
关键要点
- 函数接受三个参数:$value(待验证的值)、$param(参数名,用于错误消息)、$errors(错误数组,用于搜索可能的错误)。
- 返回一个 WP_Error 对象,表示组合操作错误。
- 函数逻辑包括:如果只有一个错误,直接返回格式化后的错误;过滤掉与类型验证相关的错误;针对对象类型错误,选择最匹配的错误;如果所有模式都有标题,则在错误消息中包含标题。
- 内部调用 rest_format_combining_operation_error() 来格式化错误,并可能使用 wp_sprintf() 和 __() 进行本地化处理。
代码示例
function rest_get_combining_operation_error( $value, $param, $errors ) {
// If there is only one error, simply return it.
if ( 1 === count( $errors ) ) {
return rest_format_combining_operation_error( $param, $errors[0] );
}
// Filter out all errors related to type validation.
$filtered_errors = array();
foreach ( $errors as $error ) {
$error_code = $error['error_object']->get_error_code();
$error_data = $error['error_object']->get_error_data();
if ( 'rest_invalid_type' !== $error_code || ( isset( $error_data['param'] ) && $param !== $error_data['param'] ) ) {
$filtered_errors[] = $error;
}
}
// If there is only one error left, simply return it.
if ( 1 === count( $filtered_errors ) ) {
return rest_format_combining_operation_error( $param, $filtered_errors[0] );
}
// If there are only errors related to object validation, try choosing the most appropriate one.
if ( count( $filtered_errors ) > 1 && 'object' === $filtered_errors[0]['schema']['type'] ) {
$result = null;
$number = 0;
foreach ( $filtered_errors as $error ) {
if ( isset( $error['schema']['properties'] ) ) {
$n = count( array_intersect_key( $error['schema']['properties'], $value ) );
if ( $n > $number ) {
$result = $error;
$number = $n;
}
}
}
if ( null !== $result ) {
return rest_format_combining_operation_error( $param, $result );
}
}
// If each schema has a title, include those titles in the error message.
$schema_titles = array();
foreach ( $errors as $error ) {
if ( isset( $error['schema']['title'] ) ) {
$schema_titles[] = $error['schema']['title'];
}
}
if ( count( $schema_titles ) === count( $errors ) ) {
/* translators: 1: Parameter, 2: Schema titles. */
return new WP_Error( 'rest_no_matching_schema', wp_sprintf( __( '%1$s is not a valid %2$l.' ), $param, $schema_titles ) );
}
/* translators: %s: Parameter. */
return new WP_Error( 'rest_no_matching_schema', sprintf( __( '%s does not match any of the expected formats.' ), $param ) );
}注意事项
- 此函数主要用于 REST API 验证场景,如处理 anyOf 或 oneOf 模式时的错误组合。
- 错误数组 $errors 应包含结构化错误信息,通常来自其他验证函数。
- 函数依赖于 WP_Error 类和相关辅助函数,确保在 WordPress 环境中使用。
- 自 WordPress 5.6.0 版本引入,使用时需注意版本兼容性。
原文内容
Gets the error of combining operation.
Parameters
$valuearrayrequired-
The value to validate.
$paramstringrequired-
The parameter name, used in error messages.
$errorsarrayrequired-
The errors array, to search for possible error.
Source
function rest_get_combining_operation_error( $value, $param, $errors ) {
// If there is only one error, simply return it.
if ( 1 === count( $errors ) ) {
return rest_format_combining_operation_error( $param, $errors[0] );
}
// Filter out all errors related to type validation.
$filtered_errors = array();
foreach ( $errors as $error ) {
$error_code = $error['error_object']->get_error_code();
$error_data = $error['error_object']->get_error_data();
if ( 'rest_invalid_type' !== $error_code || ( isset( $error_data['param'] ) && $param !== $error_data['param'] ) ) {
$filtered_errors[] = $error;
}
}
// If there is only one error left, simply return it.
if ( 1 === count( $filtered_errors ) ) {
return rest_format_combining_operation_error( $param, $filtered_errors[0] );
}
// If there are only errors related to object validation, try choosing the most appropriate one.
if ( count( $filtered_errors ) > 1 && 'object' === $filtered_errors[0]['schema']['type'] ) {
$result = null;
$number = 0;
foreach ( $filtered_errors as $error ) {
if ( isset( $error['schema']['properties'] ) ) {
$n = count( array_intersect_key( $error['schema']['properties'], $value ) );
if ( $n > $number ) {
$result = $error;
$number = $n;
}
}
}
if ( null !== $result ) {
return rest_format_combining_operation_error( $param, $result );
}
}
// If each schema has a title, include those titles in the error message.
$schema_titles = array();
foreach ( $errors as $error ) {
if ( isset( $error['schema']['title'] ) ) {
$schema_titles[] = $error['schema']['title'];
}
}
if ( count( $schema_titles ) === count( $errors ) ) {
/* translators: 1: Parameter, 2: Schema titles. */
return new WP_Error( 'rest_no_matching_schema', wp_sprintf( __( '%1$s is not a valid %2$l.' ), $param, $schema_titles ) );
}
/* translators: %s: Parameter. */
return new WP_Error( 'rest_no_matching_schema', sprintf( __( '%s does not match any of the expected formats.' ), $param ) );
}
Changelog
| Version | Description |
|---|---|
| 5.6.0 | Introduced. |