added get_one, get_popular datasource methods, added respective routes

backend/public/src/datasources/posts.rs

@@ -1,3 +1,4 @@
+use axum::routing::trace;
 use sqlx::{PgPool, Pool, Postgres};
 
 use crate::routes::posts::Post;
@@ -5,11 +6,20 @@ use crate::routes::posts::Post;
 pub struct PostsDatasource;
 impl PostsDatasource {
     pub async fn get_all(pool: &Pool<Postgres>) -> Result<Vec<Post>, sqlx::Error> {
-        sqlx::query_as::<_, Post>(
-            "SELECT post_id, title, body, created_at FROM posts ORDER BY created_at DESC LIMIT 10",
-        )
+        sqlx::query_as!(Post, "SELECT p.post_id, a.first_name, a.last_name, p.title, p.body, p.created_at FROM posts p LEFT JOIN authors a ON a.author_id = p.author_id WHERE p.deleted_at IS NULL ORDER BY p.created_at DESC LIMIT 10")
+        .fetch_all(pool)
+        .await
+    }
+
+    pub async fn get_one(pool: &Pool<Postgres>, post_id: i32) -> Result<Post, sqlx::Error> {
+        sqlx::query_as!(Post, "SELECT p.post_id, a.first_name, a.last_name, p.title, p.body, p.created_at FROM posts p LEFT JOIN authors a ON a.author_id = p.author_id WHERE p.deleted_at IS NULL AND p.post_id = $1 ORDER BY p.created_at DESC", post_id)
+        .fetch_one(pool)
+        .await
+    }
+
+    pub async fn get_popular(pool: &Pool<Postgres>) -> Result<Vec<Post>, sqlx::Error> {
+        sqlx::query_as!(Post, "SELECT p.post_id, a.first_name, a.last_name, p.title, p.body, p.created_at FROM posts p LEFT JOIN authors a ON a.author_id = p.author_id LEFT JOIN comments c ON p.post_id = c.post_id WHERE p.deleted_at IS NULL GROUP BY p.post_id, a.first_name, a.last_name ORDER BY p.created_at DESC LIMIT 3")
         .fetch_all(pool)
         .await
     }
-    pub async fn get_one(pool: PgPool, post_id: i32) {}
 }