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valico/json_dsl/validators/
mutually_exclusive.rs

1use serde_json::Value;
2
3use super::super::errors;
4
5pub struct MutuallyExclusive {
6    params: Vec<String>,
7}
8
9impl MutuallyExclusive {
10    pub fn new(params: &[&str]) -> MutuallyExclusive {
11        MutuallyExclusive {
12            params: params.iter().map(|s| (*s).to_string()).collect(),
13        }
14    }
15}
16
17impl super::Validator for MutuallyExclusive {
18    fn validate(&self, val: &Value, path: &str) -> super::ValidatorResult {
19        let object = strict_process!(val.as_object(), path, "The value must be an object");
20
21        let mut matched = vec![];
22        for param in self.params.iter() {
23            if object.contains_key(param) {
24                matched.push(param.clone());
25            }
26        }
27
28        if matched.len() <= 1 {
29            Ok(())
30        } else {
31            Err(vec![Box::new(errors::MutuallyExclusive {
32                path: path.to_string(),
33                params: matched,
34                detail: Some("Fields are mutually exclusive".to_string()),
35            })])
36        }
37    }
38}