Plume/plume-models/src/lib.rs

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#![allow(proc_macro_derive_resolution_fallback)] // This can be removed after diesel-1.4
#![feature(crate_in_paths)]
extern crate activitypub;
extern crate ammonia;
extern crate bcrypt;
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extern crate canapi;
extern crate chrono;
#[macro_use]
extern crate diesel;
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extern crate guid_create;
extern crate heck;
#[macro_use]
extern crate lazy_static;
extern crate openssl;
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extern crate plume_api;
extern crate plume_common;
extern crate reqwest;
extern crate rocket;
extern crate serde;
#[macro_use]
extern crate serde_derive;
#[macro_use]
extern crate serde_json;
extern crate url;
extern crate webfinger;
use std::env;
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#[cfg(all(feature = "sqlite", not(feature = "postgres")))]
pub type Connection = diesel::SqliteConnection;
#[cfg(all(not(feature = "sqlite"), feature = "postgres"))]
pub type Connection = diesel::PgConnection;
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/// Adds a function to a model, that returns the first
/// matching row for a given list of fields.
///
/// Usage:
///
/// ```rust
/// impl Model {
/// find_by!(model_table, name_of_the_function, field1 as String, field2 as i32);
/// }
///
/// // Get the Model with field1 == "", and field2 == 0
/// Model::name_of_the_function(connection, String::new(), 0);
/// ```
macro_rules! find_by {
($table:ident, $fn:ident, $($col:ident as $type:ident),+) => {
/// Try to find a $table with a given $col
pub fn $fn(conn: &crate::Connection, $($col: $type),+) -> Option<Self> {
$table::table
$(.filter($table::$col.eq($col)))+
.limit(1)
.load::<Self>(conn)
.expect("macro::find_by: Error loading $table by $col")
.into_iter().nth(0)
}
};
}
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/// List all rows of a model, with field-based filtering.
///
/// Usage:
///
/// ```rust
/// impl Model {
/// list_by!(model_table, name_of_the_function, field1 as String);
/// }
///
/// // To get all Models with field1 == ""
/// Model::name_of_the_function(connection, String::new());
/// ```
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macro_rules! list_by {
($table:ident, $fn:ident, $($col:ident as $type:ident),+) => {
/// Try to find a $table with a given $col
pub fn $fn(conn: &crate::Connection, $($col: $type),+) -> Vec<Self> {
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$table::table
$(.filter($table::$col.eq($col)))+
.load::<Self>(conn)
.expect("macro::list_by: Error loading $table by $col")
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}
};
}
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/// Adds a function to a model to retrieve a row by ID
///
/// # Usage
///
/// ```rust
/// impl Model {
/// get!(model_table);
/// }
///
/// // Get the Model with ID 1
/// Model::get(connection, 1);
/// ```
macro_rules! get {
($table:ident) => {
pub fn get(conn: &crate::Connection, id: i32) -> Option<Self> {
$table::table.filter($table::id.eq(id))
.limit(1)
.load::<Self>(conn)
.expect("macro::get: Error loading $table by id")
.into_iter().nth(0)
}
};
}
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/// Adds a function to a model to insert a new row
///
/// # Usage
///
/// ```rust
/// impl Model {
/// insert!(model_table, NewModelType);
/// }
///
/// // Insert a new row
/// Model::insert(connection, NewModelType::new());
/// ```
macro_rules! insert {
($table:ident, $from:ident) => {
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last!($table);
pub fn insert(conn: &crate::Connection, new: $from) -> Self {
diesel::insert_into($table::table)
.values(new)
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.execute(conn)
.expect("macro::insert: Error saving new $table");
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Self::last(conn)
}
};
}
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/// Adds a function to a model to save changes to a model.
/// The model should derive diesel::AsChangeset.
///
/// # Usage
///
/// ```rust
/// impl Model {
/// update!(model_table);
/// }
///
/// // Update and save changes
/// let m = Model::get(connection, 1);
/// m.foo = 42;
/// m.update(connection);
/// ```
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macro_rules! update {
($table:ident) => {
pub fn update(&self, conn: &crate::Connection) -> Self {
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diesel::update(self)
.set(self)
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.execute(conn)
.expect(concat!("macro::update: Error updating ", stringify!($table)));
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Self::get(conn, self.id)
.expect(concat!("macro::update: ", stringify!($table), " we just updated doesn't exist anymore???"))
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}
};
}
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/// Returns the last row of a table.
///
/// # Usage
///
/// ```rust
/// impl Model {
/// last!(model_table);
/// }
///
/// // Get the last Model
/// Model::last(connection)
/// ```
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macro_rules! last {
($table:ident) => {
pub fn last(conn: &crate::Connection) -> Self {
$table::table.order_by($table::id.desc())
.limit(1)
.load::<Self>(conn)
.expect(concat!("macro::last: Error getting last ", stringify!($table)))
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.iter().next()
.expect(concat!("macro::last: No last ", stringify!($table)))
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.clone()
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}
};
}
lazy_static! {
pub static ref BASE_URL: String = env::var("BASE_URL")
.unwrap_or(format!("127.0.0.1:{}", env::var("ROCKET_PORT").unwrap_or(String::from("8000"))));
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pub static ref USE_HTTPS: bool = env::var("USE_HTTPS").map(|val| val == "1").unwrap_or(true);
}
#[cfg(all(feature = "postgres", not(feature = "sqlite")))]
lazy_static! {
pub static ref DATABASE_URL: String = env::var("DATABASE_URL").unwrap_or(String::from("postgres://plume:plume@localhost/plume"));
}
#[cfg(all(feature = "sqlite", not(feature = "postgres")))]
lazy_static! {
pub static ref DATABASE_URL: String = env::var("DATABASE_URL").unwrap_or(String::from("plume.sqlite"));
}
pub fn ap_url(url: String) -> String {
let scheme = if *USE_HTTPS {
"https"
} else {
"http"
};
format!("{}://{}", scheme, url)
}
pub mod admin;
pub mod api_tokens;
pub mod apps;
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pub mod blog_authors;
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pub mod blogs;
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pub mod comments;
pub mod db_conn;
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pub mod follows;
pub mod headers;
pub mod instance;
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pub mod likes;
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pub mod medias;
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pub mod mentions;
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pub mod notifications;
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pub mod post_authors;
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pub mod posts;
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pub mod reshares;
pub mod safe_string;
pub mod schema;
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pub mod tags;
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pub mod users;