iron_valid 0.4.1

Request validation library for iron, based on Laravel's validation
Documentation 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19

use params::{Map, Value};

pub fn validate_in(values: &Map, field: &str, options: &[Value]) -> Result<Option<Value>, String> {
    match values.find(&[field]) {
        Some(&Value::String(ref value)) if value.is_empty() => Ok(None),
        Some(&Value::Array(ref value)) if value.is_empty() => Ok(None),
        Some(&Value::Map(ref value)) if value.is_empty() => Ok(None),
        Some(value) => {
            if options.contains(value) {
                Ok(None)
            } else {
                Err(format!("The {} field must be among the options: {:?}.",
                            field.to_lowercase().replace("_", " "),
                            options))
            }
        }
        None => Ok(None),
    }
}