src/util.rs


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use actix::{Handler, Message};
use diesel::{ExpressionMethods, MysqlConnection, QueryDsl, RunQueryDsl};

use crate::error::ServiceError;
use crate::model::{DbExecutor, User};
use crate::schema::users::{columns as user_columns, dsl::users};

pub struct UserRequest(pub String);

impl Message for UserRequest {
    type Result = Result<User, ServiceError>;
}

impl Handler<UserRequest> for DbExecutor {
    type Result = Result<User, ServiceError>;

    fn handle(&mut self, req: UserRequest, _: &mut Self::Context) -> Self::Result {
        let conn: &MysqlConnection = &self.0.get().unwrap();

        users
            .filter(user_columns::name.eq(req.0))
            .first::<User>(conn)
            .map_err(|_| ServiceError::NotFound)
    }
}

pub mod filters {
    use num_format::{CustomFormat, ToFormattedString};

    pub fn fmt_points(amount: &u64) -> Result<String, askama::Error> {
        let format = CustomFormat::builder()
            .separator(" ")
            .build()
            .expect("Format is fine");
        Ok(format!("{} JKP", (*amount).to_formatted_string(&format)))
    }
}