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use super::schema::clients;
use crate::utils::UID;
use diesel::expression_methods::TextExpressionMethods;
use diesel::pg::upsert::excluded;
use diesel::pg::PgConnection;
use diesel::prelude::*;
use serde::{Deserialize, Serialize};
use std::collections::HashMap;
use std::convert::From;
#[derive(Queryable, Insertable, Debug, AsChangeset, Clone, Serialize, Deserialize)]
pub struct Client {
pub uid: i64,
pub ip: String,
pub port: i32,
}
impl Client {
pub fn new(uid: UID, ip: String, port: i32) -> Self {
Self { uid, ip, port }
}
}
#[derive(Debug)]
pub struct ClientHashMap(pub HashMap<UID, Client>);
#[derive(Debug)]
pub struct ClientVector(pub Vec<Client>);
impl ClientVector {
pub fn empty() -> Self {
Self(vec![])
}
pub fn len(&self) -> usize {
self.0.len()
}
}
impl From<ClientHashMap> for ClientVector {
fn from(hmap: ClientHashMap) -> Self {
ClientVector(hmap.0.iter().map(|(_, c)| c.clone()).collect())
}
}
pub struct ClientHandler;
impl ClientHandler {
pub fn upsert(&self, conn: &PgConnection, new_client: &Client) -> QueryResult<Client> {
diesel::insert_into(clients::table)
.values(new_client)
.on_conflict(clients::uid)
.do_update()
.set(new_client)
.get_result(conn)
}
pub fn upsert_batch(&self, conn: &PgConnection, clients: ClientVector) -> QueryResult<()> {
diesel::insert_into(clients::table)
.values(&clients.0)
.on_conflict(clients::uid)
.do_update()
.set(clients::uid.eq(excluded(clients::uid)))
.execute(conn)?;
Ok(())
}
pub fn remove_uid(&self, conn: &PgConnection, id: UID) -> QueryResult<usize> {
use self::clients::dsl;
diesel::delete(dsl::clients.filter(dsl::uid.eq(id))).execute(conn)
}
pub fn remove_uids(&self, conn: &PgConnection, uids: Vec<UID>) -> QueryResult<usize> {
use self::clients::dsl;
let mut deleted = 0;
if uids.len() == 0 {
return diesel::delete(dsl::clients).execute(conn);
}
for uid in uids.iter() {
deleted += diesel::delete(dsl::clients.filter(dsl::uid.eq(uid))).execute(conn)?;
}
Ok(deleted)
}
pub fn uid_exists(&self, conn: &PgConnection, id: UID) -> bool {
let mut exists: bool = false;
let record = self.get_uid(conn, id).unwrap_or(ClientVector::empty());
if record.len() > 0 {
exists = true;
}
exists
}
pub fn get_uid(&self, conn: &PgConnection, id: UID) -> QueryResult<ClientVector> {
use self::clients::dsl;
let record = dsl::clients.filter(dsl::uid.eq(id)).load::<Client>(conn)?;
Ok(ClientVector(record))
}
pub fn get_uids(&self, conn: &PgConnection, uids: Vec<UID>) -> QueryResult<ClientVector> {
use self::clients::dsl;
let mut results: Vec<Client> = Vec::new();
if uids.len() == 0 {
let all_records = dsl::clients.load::<Client>(conn)?;
return Ok(ClientVector(all_records));
}
for uid in uids.iter() {
let record = dsl::clients.filter(dsl::uid.eq(uid)).load::<Client>(conn)?;
if let Some(client) = record.first() {
results.push(client.clone());
} else {
println!("Couldn't find record with uid: `{}`", uid);
}
}
Ok(ClientVector(results))
}
pub fn get_uids_range(
&self,
conn: &PgConnection,
from: UID,
to: UID,
) -> QueryResult<ClientVector> {
let uid_range: Vec<UID> = (from..to).collect();
self.get_uids(conn, uid_range)
}
pub fn get_ip_exact<'a>(&self, conn: &PgConnection, ip: &'a str) -> QueryResult<ClientVector> {
use self::clients::dsl;
let record = dsl::clients
.filter(dsl::ip.eq(ip.to_string()))
.load::<Client>(conn)?;
Ok(ClientVector(record))
}
pub fn get_ip_like<'a>(
&self,
conn: &PgConnection,
pattern_match: String,
) -> QueryResult<ClientVector> {
use self::clients::dsl;
let records = dsl::clients
.filter(dsl::ip.like(pattern_match))
.load::<Client>(conn)?;
Ok(ClientVector(records))
}
}