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lemmy/server/src/lib.rs

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#[macro_use]
extern crate diesel;
extern crate dotenv;
extern crate chrono;
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use diesel::*;
use diesel::pg::PgConnection;
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use diesel::result::Error;
use dotenv::dotenv;
use std::env;
pub mod schema;
pub mod apub;
pub mod actions;
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// pub trait Likeable;
pub trait Crud<T> {
fn create(conn: &PgConnection, form: T) -> Result<Self, Error> where Self: Sized;
fn read(conn: &PgConnection, id: i32) -> Self;
fn update(conn: &PgConnection, id: i32, form: T) -> Self;
fn delete(conn: &PgConnection, id: i32) -> usize;
}
pub trait Followable<T> {
fn follow(conn: &PgConnection, form: T) -> Result<Self, Error> where Self: Sized;
fn ignore(conn: &PgConnection, form: T) -> usize;
}
pub trait Joinable<T> {
fn join(conn: &PgConnection, form: T) -> Result<Self, Error> where Self: Sized;
fn leave(conn: &PgConnection, form: T) -> usize;
}
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pub trait Likeable<T> {
fn like(conn: &PgConnection, form: T) -> Result<Self, Error> where Self: Sized;
fn remove(conn: &PgConnection, form: T) -> usize;
}
pub fn establish_connection() -> PgConnection {
let db_url = Settings::get().db_url;
PgConnection::establish(&db_url)
.expect(&format!("Error connecting to {}", db_url))
}
pub struct Settings {
db_url: String,
hostname: String
}
impl Settings {
fn get() -> Self {
dotenv().ok();
Settings {
db_url: env::var("DATABASE_URL")
.expect("DATABASE_URL must be set"),
hostname: env::var("HOSTNAME").unwrap_or("http://0.0.0.0".to_string())
}
}
fn api_endpoint(&self) -> String {
format!("{}/api/v1", self.hostname)
}
}
use chrono::{DateTime, NaiveDateTime, Utc};
pub fn to_datetime_utc(ndt: NaiveDateTime) -> DateTime<Utc> {
DateTime::<Utc>::from_utc(ndt, Utc)
}
pub fn naive_now() -> NaiveDateTime {
chrono::prelude::Utc::now().naive_utc()
}
#[cfg(test)]
mod tests {
use Settings;
#[test]
fn test_api() {
assert_eq!(Settings::get().api_endpoint(), "http://0.0.0.0/api/v1");
}
}