docs: added the opt type to the commit style definition

docs/contribution_guide.md

@@ -35,10 +35,11 @@ notes
 
 A commits type can be one of the following:
 
-- **feat**: feature
+- **feat:** feature
-- **fix**: bugfix
+- **fix:** bugfix
-- **refactor**: nothing new added but code restructured, etc
+- **refactor:** nothing new added but code restructured, etc
-- **docs**: documentation changes
+- **docs:** documentation changes
+- **opt:** optimization changes
 
 The commit scope is kinda free, but it's a good idea to use scopes, that have been used before.
 Scopes can be nested like this: `scope >> subscope >> subscope`.

src/backend/tokens.rs

@@ -19,7 +19,7 @@ impl Backend {
     ) -> anyhow::Result<anyhow::Result<Uuid, Error>> {
         match sqlx::query_as!(
             AuthTokensRow,
-            r#"SELECT * FROM AuthTokens WHERE token = ?;"#,
+            r#"SELECT * FROM AuthTokens WHERE token = ? LIMIT 1;"#,
             token
         )
         .fetch_one(&self.pool)
@@ -49,7 +49,7 @@ impl Backend {
     ) -> anyhow::Result<anyhow::Result<(), Error>> {
         match sqlx::query_as!(
             InviteTokensRow,
-            r#"SELECT * FROM InviteTokens WHERE token = ?;"#,
+            r#"SELECT * FROM InviteTokens WHERE token = ? LIMIT 1;"#,
             token
         )
         .fetch_one(&self.pool)

src/backend/user.rs

@@ -90,7 +90,7 @@ impl Backend {
     async fn get_user(&self, userid: Uuid) -> Result<Result<User, Error>> {
         match sqlx::query_as!(
             UsersRow,
-            r#"SELECT * FROM Users WHERE userid = ?;"#,
+            r#"SELECT * FROM Users WHERE userid = ? LIMIT 1;"#,
             userid.as_bytes().as_slice()
         )
         .fetch_one(&self.pool)