add: hide posts from users who have blocked you from timelines

crates/core/src/database/userblocks.rs

@@ -143,6 +143,35 @@ impl DataManager {
         res.unwrap()
     }
 
+    /// Get the owner of all user blocks for the given `receiver`.
+    pub async fn get_userblocks_initiator_by_receivers(&self, receiver: usize) -> Vec<usize> {
+        let conn = match self.connect().await {
+            Ok(c) => c,
+            Err(_) => return Vec::new(),
+        };
+
+        let res = query_rows!(
+            &conn,
+            "SELECT * FROM userblocks WHERE receiver = $1",
+            &[&(receiver as i64)],
+            |x| { Self::get_userblock_from_row(x) }
+        );
+
+        if res.is_err() {
+            return Vec::new();
+        }
+
+        // get owner
+        let mut out: Vec<usize> = Vec::new();
+
+        for b in res.unwrap() {
+            out.push(b.initiator);
+        }
+
+        // return
+        out
+    }
+
     /// Create a new user block in the database.
     ///
     /// # Arguments