api endpoint for all languages, fix tests, context, adjust migrations

crates/api_common/src/site.rs

@@ -1,4 +1,4 @@
-use lemmy_db_schema::{CommunityId, PersonId};
+use lemmy_db_schema::{CommunityId, PersonId, PrimaryLanguageTag};
 use lemmy_db_views::{
   comment_view::CommentView,
   local_user_view::LocalUserSettingsView,
@@ -88,6 +88,7 @@ pub struct EditSite {
   pub open_registration: Option<bool>,
   pub enable_nsfw: Option<bool>,
   pub community_creation_admin_only: Option<bool>,
+  pub languages: Vec<PrimaryLanguageTag>,
   pub auth: String,
 }
 
@@ -140,3 +141,11 @@ pub struct FederatedInstances {
   pub allowed: Option<Vec<String>>,
   pub blocked: Option<Vec<String>>,
 }
+
+#[derive(Deserialize)]
+pub struct GetLanguages {}
+
+#[derive(Serialize, Clone)]
+pub struct LanguagesResponse {
+  pub languages: Vec<PrimaryLanguageTag>,
+}

crates/api_crud/src/site/read.rs

@@ -7,6 +7,7 @@ use lemmy_api_common::{
   person::Register,
   site::*,
 };
+use lemmy_db_schema::PrimaryLanguageTag;
 use lemmy_db_views::site_view::SiteView;
 use lemmy_db_views_actor::person_view::PersonViewSafe;
 use lemmy_utils::{settings::structs::Settings, version, ConnectionId, LemmyError};
@@ -98,3 +99,22 @@ impl PerformCrud for GetSite {
     })
   }
 }
+
+#[async_trait::async_trait(?Send)]
+impl PerformCrud for GetLanguages {
+  type Response = LanguagesResponse;
+
+  async fn perform(
+    &self,
+    _context: &Data<LemmyContext>,
+    _websocket_id: Option<ConnectionId>,
+  ) -> Result<LanguagesResponse, LemmyError> {
+    // TODO: get an actual language list
+    // https://github.com/pyfisch/rust-language-tags/issues/32
+    let languages = vec!["en", "es"]
+      .iter()
+      .map(|l| PrimaryLanguageTag(l.to_string()))
+      .collect();
+    Ok(LanguagesResponse { languages })
+  }
+}

crates/apub/src/extensions/context.rs

@@ -10,7 +10,7 @@ pub fn lemmy_context() -> Result<Vec<AnyBase>, LemmyError> {
     "sensitive": "as:sensitive",
     "stickied": "as:stickied",
     "pt": "https://join.lemmy.ml#",
-    "comments_enabled": {
+    "commentsEnabled": {
       "type": "sc:Boolean",
       "id": "pt:commentsEnabled"
     },
@@ -19,6 +19,9 @@ pub fn lemmy_context() -> Result<Vec<AnyBase>, LemmyError> {
       "type": "sc:Text",
       "id": "as:alsoKnownAs"
     },
+    "languages": {
+      "type": "sc:Text"
+    },
   }))?;
   Ok(vec![
     AnyBase::from(context()),

crates/db_views/src/post_view.rs

@@ -522,6 +522,7 @@ mod tests {
       name: bot_post_name,
       creator_id: inserted_bot.id,
       community_id: inserted_community.id,
+      language: Some(PrimaryLanguageTag("en".to_string())),
       ..PostForm::default()
     };
 

migrations/2021-04-28-122254_language-tags/down.sql

@@ -2,5 +2,5 @@ ALTER TABLE comment DROP COLUMN language;
 ALTER TABLE post DROP COLUMN language;
 ALTER TABLE private_message DROP COLUMN language;
 
-DROP TABLE discussion_languages;
+ALTER TABLE local_user DROP COLUMN discussion_languages;
 ALTER TABLE local_user RENAME COLUMN interface_language TO lang;

migrations/2021-04-28-122254_language-tags/up.sql

@@ -2,5 +2,5 @@ ALTER TABLE comment ADD COLUMN language TEXT NOT NULL;
 ALTER TABLE post ADD COLUMN language TEXT NOT NULL;
 ALTER TABLE private_message ADD COLUMN language TEXT NOT NULL;
 
-CREATE TABLE discussion_languages(id INTEGER PRIMARY KEY, local_user_id INT NOT NULL, language TEXT NOT NULL);
+ALTER TABLE local_user ADD COLUMN discussion_languages TEXT[] NOT NULL;
 ALTER TABLE local_user RENAME COLUMN lang TO interface_language;

src/api_routes.rs

@@ -21,7 +21,8 @@ pub fn config(cfg: &mut web::ServiceConfig, rate_limit: &RateLimit) {
           .route("", web::put().to(route_post_crud::<EditSite>))
           .route("/transfer", web::post().to(route_post::<TransferSite>))
           .route("/config", web::get().to(route_get::<GetSiteConfig>))
-          .route("/config", web::put().to(route_post::<SaveSiteConfig>)),
+          .route("/config", web::put().to(route_post::<SaveSiteConfig>))
+          .route("/languages", web::get().to(route_get_crud::<GetLanguages>)),
       )
       .service(
         web::resource("/modlog")