valico/json_dsl/validators/
exactly_one_of.rs

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1use serde_json::{Value};
2
3use super::super::errors;
4
5pub struct ExactlyOneOf {
6    params: Vec<String>
7}
8
9impl ExactlyOneOf {
10    pub fn new(params: &[&str]) -> ExactlyOneOf {
11        ExactlyOneOf {
12            params: params.iter().map(|s| s.to_string()).collect()
13        }
14    }
15}
16
17impl super::Validator for ExactlyOneOf {
18    fn validate(&self, val: &Value, path: &str) -> super::ValidatorResult {
19
20        let object = strict_process!(val.as_object(), path, "The value must be an object");
21
22        let mut matched = vec![];
23        for param in self.params.iter() {
24            if object.contains_key(param) { matched.push(param.clone()); }
25        }
26
27        let len = matched.len();
28        if len == 1 {
29            Ok(())
30        } else if len > 1 {
31            Err(vec![
32                Box::new(errors::ExactlyOne {
33                    path: path.to_string(),
34                    detail: Some("Exactly one is allowed at one time".to_string()),
35                    params: matched
36                })
37            ])
38        } else {
39            Err(vec![
40                Box::new(errors::ExactlyOne {
41                    path: path.to_string(),
42                    detail: Some("Exactly one must be present".to_string()),
43                    params: self.params.clone()
44                })
45            ])
46        }
47    }
48}
valico/json_dsl/validators/exactly_one_of.rs

valico/json_dsl/validators/
exactly_one_of.rs
