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#[macro_use]
extern crate diesel;
#[macro_use]
extern crate strum_macros;
#[macro_use]
extern crate lazy_static;
// this is used in tests
#[allow(unused_imports)]
#[macro_use]
extern crate diesel_migrations;
use diesel::{result::Error, *};
use lemmy_db_schema::Url;
use regex::Regex;
use serde::{Deserialize, Serialize};
use std::{env, env::VarError};
pub mod aggregates;
pub mod source;
pub type DbPool = diesel::r2d2::Pool<diesel::r2d2::ConnectionManager<diesel::PgConnection>>;
pub trait Crud<T> {
fn create(conn: &PgConnection, form: &T) -> Result<Self, Error>
where
Self: Sized;
fn read(conn: &PgConnection, id: i32) -> Result<Self, Error>
where
Self: Sized;
fn update(conn: &PgConnection, id: i32, form: &T) -> Result<Self, Error>
where
Self: Sized;
fn delete(_conn: &PgConnection, _id: i32) -> Result<usize, Error>
where
Self: Sized,
{
unimplemented!()
}
}
pub trait Followable<T> {
fn follow(conn: &PgConnection, form: &T) -> Result<Self, Error>
where
Self: Sized;
fn follow_accepted(conn: &PgConnection, community_id: i32, user_id: i32) -> Result<Self, Error>
where
Self: Sized;
fn unfollow(conn: &PgConnection, form: &T) -> Result<usize, Error>
where
Self: Sized;
fn has_local_followers(conn: &PgConnection, community_id: i32) -> Result<bool, Error>;
}
pub trait Joinable<T> {
fn join(conn: &PgConnection, form: &T) -> Result<Self, Error>
where
Self: Sized;
fn leave(conn: &PgConnection, form: &T) -> Result<usize, Error>
where
Self: Sized;
}
pub trait Likeable<T> {
fn like(conn: &PgConnection, form: &T) -> Result<Self, Error>
where
Self: Sized;
fn remove(conn: &PgConnection, user_id: i32, item_id: i32) -> Result<usize, Error>
where
Self: Sized;
}
pub trait Bannable<T> {
fn ban(conn: &PgConnection, form: &T) -> Result<Self, Error>
where
Self: Sized;
fn unban(conn: &PgConnection, form: &T) -> Result<usize, Error>
where
Self: Sized;
}
pub trait Saveable<T> {
fn save(conn: &PgConnection, form: &T) -> Result<Self, Error>
where
Self: Sized;
fn unsave(conn: &PgConnection, form: &T) -> Result<usize, Error>
where
Self: Sized;
}
pub trait Readable<T> {
fn mark_as_read(conn: &PgConnection, form: &T) -> Result<Self, Error>
where
Self: Sized;
fn mark_as_unread(conn: &PgConnection, form: &T) -> Result<usize, Error>
where
Self: Sized;
}
pub trait Reportable<T> {
fn report(conn: &PgConnection, form: &T) -> Result<Self, Error>
where
Self: Sized;
fn resolve(conn: &PgConnection, report_id: i32, resolver_id: i32) -> Result<usize, Error>
where
Self: Sized;
fn unresolve(conn: &PgConnection, report_id: i32, resolver_id: i32) -> Result<usize, Error>
where
Self: Sized;
}
pub trait ApubObject<T> {
fn read_from_apub_id(conn: &PgConnection, object_id: &Url) -> Result<Self, Error>
where
Self: Sized;
fn upsert(conn: &PgConnection, user_form: &T) -> Result<Self, Error>
where
Self: Sized;
}
pub trait MaybeOptional<T> {
fn get_optional(self) -> Option<T>;
}
impl<T> MaybeOptional<T> for T {
fn get_optional(self) -> Option<T> {
Some(self)
}
}
impl<T> MaybeOptional<T> for Option<T> {
fn get_optional(self) -> Option<T> {
self
}
}
pub trait ToSafe {
type SafeColumns;
fn safe_columns_tuple() -> Self::SafeColumns;
}
pub trait ToSafeSettings {
type SafeSettingsColumns;
fn safe_settings_columns_tuple() -> Self::SafeSettingsColumns;
}
pub trait ViewToVec {
type DbTuple;
fn from_tuple_to_vec(tuple: Vec<Self::DbTuple>) -> Vec<Self>
where
Self: Sized;
}
pub fn get_database_url_from_env() -> Result<String, VarError> {
env::var("LEMMY_DATABASE_URL")
}
#[derive(EnumString, ToString, Debug, Serialize, Deserialize)]
pub enum SortType {
Active,
Hot,
New,
TopDay,
TopWeek,
TopMonth,
TopYear,
TopAll,
MostComments,
NewComments,
}
#[derive(EnumString, ToString, Debug, Serialize, Deserialize, Clone)]
pub enum ListingType {
All,
Local,
Subscribed,
Community,
}
#[derive(EnumString, ToString, Debug, Serialize, Deserialize)]
pub enum SearchType {
All,
Comments,
Posts,
Communities,
Users,
Url,
}
pub fn fuzzy_search(q: &str) -> String {
let replaced = q.replace(" ", "%");
format!("%{}%", replaced)
}
pub fn limit_and_offset(page: Option<i64>, limit: Option<i64>) -> (i64, i64) {
let page = page.unwrap_or(1);
let limit = limit.unwrap_or(10);
let offset = limit * (page - 1);
(limit, offset)
}
pub fn is_email_regex(test: &str) -> bool {
EMAIL_REGEX.is_match(test)
}
pub fn diesel_option_overwrite(opt: &Option<String>) -> Option<Option<String>> {
match opt {
// An empty string is an erase
Some(unwrapped) => {
if !unwrapped.eq("") {
Some(Some(unwrapped.to_owned()))
} else {
Some(None)
}
}
None => None,
}
}
embed_migrations!();
pub fn establish_unpooled_connection() -> PgConnection {
let db_url = match get_database_url_from_env() {
Ok(url) => url,
Err(e) => panic!(
"Failed to read database URL from env var LEMMY_DATABASE_URL: {}",
e
),
};
let conn =
PgConnection::establish(&db_url).unwrap_or_else(|_| panic!("Error connecting to {}", db_url));
embedded_migrations::run(&conn).unwrap();
conn
}
lazy_static! {
static ref EMAIL_REGEX: Regex =
Regex::new(r"^[a-zA-Z0-9.!#$%&’*+/=?^_`{|}~-]+@[a-zA-Z0-9-]+(?:\.[a-zA-Z0-9-]+)*$").unwrap();
}
pub mod functions {
use diesel::sql_types::*;
sql_function! {
fn hot_rank(score: BigInt, time: Timestamp) -> Integer;
}
}
#[cfg(test)]
mod tests {
use super::fuzzy_search;
use crate::is_email_regex;
#[test]
fn test_fuzzy_search() {
let test = "This is a fuzzy search";
assert_eq!(fuzzy_search(test), "%This%is%a%fuzzy%search%".to_string());
}
#[test]
fn test_email() {
assert!(is_email_regex("gush@gmail.com"));
assert!(!is_email_regex("nada_neutho"));
}
}