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