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/posts.rs

@@ -26,6 +26,7 @@ use safe_string::SafeString;
 use schema::posts;
 use search::Searcher;
 use tags::*;
+use timeline::*;
 use users::User;
 use {ap_url, Connection, Error, PlumeRocket, Result, CONFIG};
 
@@ -182,15 +183,6 @@ impl Post {
         query.get_results::<Post>(conn).map_err(Error::from)
     }
 
-    pub fn get_recents(conn: &Connection, limit: i64) -> Result<Vec<Post>> {
-        posts::table
-            .order(posts::creation_date.desc())
-            .filter(posts::published.eq(true))
-            .limit(limit)
-            .load::<Post>(conn)
-            .map_err(Error::from)
-    }
-
     pub fn get_recents_for_author(
         conn: &Connection,
         author: &User,
@@ -246,60 +238,6 @@ impl Post {
             .map_err(Error::from)
     }
 
-    /// Give a page of all the recent posts known to this instance (= federated timeline)
-    pub fn get_recents_page(conn: &Connection, (min, max): (i32, i32)) -> Result<Vec<Post>> {
-        posts::table
-            .order(posts::creation_date.desc())
-            .filter(posts::published.eq(true))
-            .offset(min.into())
-            .limit((max - min).into())
-            .load::<Post>(conn)
-            .map_err(Error::from)
-    }
-
-    /// Give a page of posts from a specific instance
-    pub fn get_instance_page(
-        conn: &Connection,
-        instance_id: i32,
-        (min, max): (i32, i32),
-    ) -> Result<Vec<Post>> {
-        use schema::blogs;
-
-        let blog_ids = blogs::table
-            .filter(blogs::instance_id.eq(instance_id))
-            .select(blogs::id);
-
-        posts::table
-            .order(posts::creation_date.desc())
-            .filter(posts::published.eq(true))
-            .filter(posts::blog_id.eq_any(blog_ids))
-            .offset(min.into())
-            .limit((max - min).into())
-            .load::<Post>(conn)
-            .map_err(Error::from)
-    }
-
-    /// Give a page of customized user feed, based on a list of followed users
-    pub fn user_feed_page(
-        conn: &Connection,
-        followed: Vec<i32>,
-        (min, max): (i32, i32),
-    ) -> Result<Vec<Post>> {
-        use schema::post_authors;
-        let post_ids = post_authors::table
-            .filter(post_authors::author_id.eq_any(followed))
-            .select(post_authors::post_id);
-
-        posts::table
-            .order(posts::creation_date.desc())
-            .filter(posts::published.eq(true))
-            .filter(posts::id.eq_any(post_ids))
-            .offset(min.into())
-            .limit((max - min).into())
-            .load::<Post>(conn)
-            .map_err(Error::from)
-    }
-
     pub fn drafts_by_author(conn: &Connection, author: &User) -> Result<Vec<Post>> {
         use schema::post_authors;
 
@@ -335,11 +273,8 @@ impl Post {
         use schema::blogs;
         blogs::table
             .filter(blogs::id.eq(self.blog_id))
-            .limit(1)
-            .load::<Blog>(conn)?
-            .into_iter()
-            .nth(0)
-            .ok_or(Error::NotFound)
+            .first(conn)
+            .map_err(Error::from)
     }
 
     pub fn count_likes(&self, conn: &Connection) -> Result<i64> {
@@ -717,6 +652,9 @@ impl FromId<PlumeRocket> for Post {
                     .ok();
             }
         }
+
+        Timeline::add_to_all_timelines(c, &post, Kind::Original)?;
+
         Ok(post)
     }
 }
@@ -928,7 +866,6 @@ mod tests {
                 }
                 _ => panic!("Unexpected result"),
             };
-
             Ok(())
         });
     }