Add support for generic timeline (#525)

* Begin adding support for timeline

* fix some bugs with parser

* fmt

* add error reporting for parser

* add tests for timeline query parser

* add rejection tests for parse

* begin adding support for lists

also run migration before compiling, so schema.rs is up to date

* add sqlite migration

* end adding lists

still miss tests and query integration

* cargo fmt

* try to add some tests

* Add some constraint to db, and fix list test

and refactor other tests to use begin_transaction

* add more tests for lists

* add support for lists in query executor

* add keywords for including/excluding boosts and likes

* cargo fmt

* add function to list lists used by query

will make it easier to warn users when creating timeline with unknown lists

* add lang support

* add timeline creation error message when using unexisting lists

* Update .po files

* WIP: interface for timelines

* don't use diesel for migrations

not sure how it passed the ci on the other branch

* add some tests for timeline

add an int representing the order of timelines (first one will be on
top, second just under...)
use first() instead of limit(1).get().into_iter().nth(0)
remove migrations from build artifacts as they are now compiled in

* cargo fmt

* remove timeline order

* fix tests

* add tests for timeline creation failure

* cargo fmt

* add tests for timelines

* add test for matching direct lists and keywords

* add test for language filtering

* Add a more complex test for Timeline::matches, and fix TQ::matches for TQ::Or

* Make the main crate compile + FMT

* Use the new timeline system

- Replace the old "feed" system with timelines
- Display all timelines someone can access on their home page (either their personal ones, or instance timelines)
- Remove functions that were used to get user/local/federated feed
- Add new posts to timelines
- Create a default timeline called "My feed" for everyone, and "Local feed"/"Federated feed" with timelines

@fdb-hiroshima I don't know if that's how you pictured it? If you imagined it differently I can of course make changes.

I hope I didn't forgot anything…

* Cargo fmt

* Try to fix the migration

* Fix tests

* Fix the test (for real this time ?)

* Fix the tests ? + fmt

* Use Kind::Like and Kind::Reshare when needed

* Forgot to run cargo fmt once again

* revert translations

* fix reviewed stuff

* reduce code duplication by macros

* cargo fmt

plume-models/src/lib.rs

@@ -63,6 +63,7 @@ pub enum Error {
     SerDe,
     Search(search::SearcherError),
     Signature,
+    TimelineQuery(timeline::query::QueryError),
     Unauthorized,
     Url,
     Webfinger,
@@ -138,6 +139,12 @@ impl From<search::SearcherError> for Error {
     }
 }
 
+impl From<timeline::query::QueryError> for Error {
+    fn from(err: timeline::query::QueryError) -> Self {
+        Error::TimelineQuery(err)
+    }
+}
+
 impl From<std::io::Error> for Error {
     fn from(err: std::io::Error) -> Self {
         Error::Io(err)
@@ -174,11 +181,8 @@ macro_rules! find_by {
         pub fn $fn(conn: &crate::Connection, $($col: $type),+) -> Result<Self> {
             $table::table
                 $(.filter($table::$col.eq($col)))+
-                .limit(1)
-                .load::<Self>(conn)?
-                .into_iter()
-                .next()
-                .ok_or(Error::NotFound)
+                .first(conn)
+                .map_err(Error::from)
         }
     };
 }
@@ -224,11 +228,8 @@ macro_rules! get {
         pub fn get(conn: &crate::Connection, id: i32) -> Result<Self> {
             $table::table
                 .filter($table::id.eq(id))
-                .limit(1)
-                .load::<Self>(conn)?
-                .into_iter()
-                .next()
-                .ok_or(Error::NotFound)
+                .first(conn)
+                .map_err(Error::from)
         }
     };
 }
@@ -281,11 +282,8 @@ macro_rules! last {
         pub fn last(conn: &crate::Connection) -> Result<Self> {
             $table::table
                 .order_by($table::id.desc())
-                .limit(1)
-                .load::<Self>(conn)?
-                .into_iter()
-                .next()
-                .ok_or(Error::NotFound)
+                .first(conn)
+                .map_err(Error::from)
         }
     };
 }
@@ -302,8 +300,6 @@ pub fn ap_url(url: &str) -> String {
 mod tests {
     use db_conn;
     use diesel::r2d2::ConnectionManager;
-    #[cfg(feature = "sqlite")]
-    use diesel::{dsl::sql_query, RunQueryDsl};
     use migrations::IMPORTED_MIGRATIONS;
     use plume_common::utils::random_hex;
     use scheduled_thread_pool::ScheduledThreadPool;
@@ -331,7 +327,7 @@ mod tests {
     lazy_static! {
         static ref DB_POOL: db_conn::DbPool = {
             let pool = db_conn::DbPool::builder()
-                .connection_customizer(Box::new(db_conn::PragmaForeignKey))
+                .connection_customizer(Box::new(db_conn::tests::TestConnectionCustomizer))
                 .build(ConnectionManager::<Conn>::new(CONFIG.database_url.as_str()))
                 .unwrap();
             let dir = temp_dir().join(format!("plume-test-{}", random_hex()));
@@ -365,6 +361,7 @@ pub mod headers;
 pub mod inbox;
 pub mod instance;
 pub mod likes;
+pub mod lists;
 pub mod medias;
 pub mod mentions;
 pub mod migrations;
@@ -379,5 +376,6 @@ pub mod safe_string;
 pub mod schema;
 pub mod search;
 pub mod tags;
+pub mod timeline;
 pub mod users;
 pub use plume_rocket::PlumeRocket;