wip: added get post comments, working insert comment to post

backend/public/src/datasources/comments.rs

@@ -1,8 +1,22 @@
-use crate::routes::comments::CommentInput;
-use sqlx::PgPool;
+use crate::routes::comments::{Comment, CommentInputPayload};
+use sqlx::{Pool, Postgres};
 
 pub struct CommentsDatasource;
 impl CommentsDatasource {
-    pub async fn get_posts_comments(pool: PgPool) {}
-    pub async fn insert_comment(pool: PgPool, comment_input: CommentInput) {}
+    pub async fn get_posts_comments(
+        pool: &Pool<Postgres>,
+        post_id: i32,
+    ) -> Result<Vec<Comment>, sqlx::Error> {
+        sqlx::query_as!(Comment, "SELECT c.comment_id, c.name, c.body, c.created_at FROM comments c LEFT JOIN posts p ON p.post_id = c.post_id WHERE p.post_id = $1 AND c.deleted_at IS NULL ORDER BY created_at DESC LIMIT 20", post_id)
+            .fetch_all(pool)
+            .await
+    }
+    pub async fn insert_comment(
+        pool: &Pool<Postgres>,
+        comment_input: CommentInputPayload,
+    ) -> Result<Comment, sqlx::Error> {
+        sqlx::query!("INSERT INTO comments (post_id, name, body) VALUES ($1, $2, $3) RETURNING comment_id, name, body, created_at", comment_input.post_id, comment_input.name, comment_input.body)
+            .fetch_one(pool)
+            .await
+    }
 }