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CustomCondition

Struct CustomCondition 

Source
pub struct CustomCondition {
    pub name_str: &'static str,
    pub generator: Box<dyn Fn(&PermissionContext) -> Option<String> + Sync + Send>,
}
Expand description

自定义条件规则 — 通过闭包动态生成 WHERE 子句

适用于业务特定的权限逻辑(如“只能查看自己创建的草稿状态订单“)。

§安全警告

闭包返回的 String 会直接拼接到 SQL 中,调用方必须确保内容来源可信, 严禁将用户输入直接拼接到返回的字符串中(否则会引入 SQL 注入风险)。 若需要使用用户输入,应使用参数化查询(? 占位符 + bind 参数)。

§示例

use sz_orm_query::data_permission::{CustomCondition, PermissionRule, PermissionContext};

let rule = CustomCondition::new("status_filter", |ctx| {
    if ctx.is_admin() {
        None
    } else {
        Some("status != 'draft'".to_string())
    }
});
let ctx = PermissionContext::new().with_user_id(1);
let clause = rule.apply(&ctx).unwrap().unwrap();
assert_eq!(clause, "status != 'draft'");

Fields§

§name_str: &'static str

规则名称

§generator: Box<dyn Fn(&PermissionContext) -> Option<String> + Sync + Send>

条件生成闭包

Implementations§

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impl CustomCondition

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pub fn new( name: &'static str, generator: impl Fn(&PermissionContext) -> Option<String> + Send + Sync + 'static, ) -> CustomCondition

创建自定义条件规则

Trait Implementations§

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impl PermissionRule for CustomCondition

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fn name(&self) -> &'static str

规则名称(用于调试、日志)
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fn apply( &self, ctx: &PermissionContext, ) -> Result<Option<String>, PermissionError>

生成 WHERE 子句片段

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