refactor expanded post query and replies query

Project-Chirp · Jan 12, 2025 · 654cfb4 · 654cfb4
1 parent 6a52cb2
commit 654cfb4
Showing 1 changed file with 74 additions and 29 deletions.
diff --git a/models/PostModel.js b/models/PostModel.js
@@ -135,49 +135,92 @@ const getPost = `
   post_replies_reposts AS (
     SELECT 
       "parentPostId",
-      COUNT(*)::INT AS "numberOfReplies",
-      COUNT(CASE WHEN "isRepost" = TRUE THEN 1 END) AS "numberOfReposts"
+      COUNT(CASE WHEN "isRepost" = FALSE AND "isQuotePost" = FALSE THEN 1 END)::INT AS "numberOfReplies",
+      COUNT(CASE WHEN "isRepost" = TRUE THEN 1 END)::INT AS "numberOfReposts"
     FROM post
     WHERE "parentPostId" IS NOT NULL
 	  AND deleted = FALSE
     GROUP BY "parentPostId"
-  )
+  ),
+post_metrics AS (
+  SELECT
+    p."postId",
+    COALESCE(l."numberOfLikes", 0) AS "numberOfLikes",
+    COALESCE(r."numberOfReplies", 0) AS "numberOfReplies",
+    COALESCE(r."numberOfReposts", 0) AS "numberOfReposts"
+  FROM post AS p
+  LEFT JOIN post_likes AS l ON p."postId" = l."postId"
+  LEFT JOIN post_replies_reposts AS r ON p."postId" = r."parentPostId"
+  WHERE p.deleted = FALSE
+)
   SELECT 
     p."postId",
-    u.username,
-    u."displayName",
+    p."parentPostId",
+    u.username AS "repostedUsername", 
+    u."displayName" AS "repostedDisplayName", 
+    COALESCE(p_parent."textContent", p."textContent") AS "textContent", 
+    COALESCE(up.username, u.username) AS username, 
+    COALESCE(up."displayName", u."displayName") AS "displayName",
     u."userId",
-    p."textContent",
     p.timestamp,
     p."editedTimestamp",
-    EXISTS (
-      SELECT 1 
-      FROM liked_post li 
-      WHERE li."userId" = $1 
-        AND li."postId" = p."postId" 
-      LIMIT 1
-    ) AS "isLikedByCurrentUser",
-     CASE
-      WHEN EXISTS (
-        SELECT 1
-        FROM follow WHERE "followerUserId" = $1
-          AND "followedUserId" = u."userId"
-      )
-      THEN TRUE
-      ELSE FALSE
-    END AS "followStatus",
-    COALESCE(l."numberOfLikes",0) AS "numberOfLikes",
-    COALESCE(r."numberOfReplies", 0) AS "numberOfReplies",
-    COALESCE(r."numberOfReposts", 0) AS "numberOfReposts"
+  p."isRepost",
+  p."isQuotePost",
+  EXISTS (
+    SELECT 1 
+    FROM liked_post li 
+    WHERE li."userId" = $1
+      AND li."postId" = COALESCE(p."parentPostId", p."postId") 
+    LIMIT 1
+  ) AS "isLikedByCurrentUser",
+  EXISTS (
+    SELECT 1 
+    FROM post rp
+    WHERE (rp."parentPostId" = p."postId" OR rp."parentPostId" = p."parentPostId")
+      AND rp."isRepost" = TRUE 
+      AND rp."userId" = $1
+      AND rp."deleted" = FALSE
+    LIMIT 1
+  ) AS "isRepostedByCurrentUser",
+  COALESCE(
+    CASE 
+      WHEN p."isRepost" = TRUE THEN pm."numberOfLikes"
+      ELSE lm."numberOfLikes"
+    END, 0
+  ) AS "numberOfLikes",
+  COALESCE(
+    CASE 
+      WHEN p."isRepost" = TRUE THEN pm."numberOfReplies"
+      ELSE lm."numberOfReplies"
+    END, 0
+  ) AS "numberOfReplies",
+  COALESCE(
+    CASE 
+      WHEN p."isRepost" = TRUE THEN pm."numberOfReposts"
+      ELSE lm."numberOfReposts"
+    END, 0
+  ) AS "numberOfReposts"
   FROM post AS p
+  LEFT JOIN post_metrics AS lm
+  ON p."postId" = lm."postId"
+  LEFT JOIN post_metrics AS pm
+    ON p."parentPostId" = pm."postId"
+  LEFT JOIN post AS p_parent
+    ON p."parentPostId" = p_parent."postId" 
+  LEFT JOIN app_user AS up
+    ON p_parent."userId" = up."userId" 
   LEFT JOIN post_likes AS l
     ON p."postId" = l."postId"
   LEFT JOIN post_replies_reposts AS r
     ON p."postId" = r."parentPostId"
   INNER JOIN app_user AS u
     ON p."userId" = u."userId"
   WHERE p."postId" = $2
-  	AND p."deleted" = FALSE;
+  	AND p."deleted" = FALSE
+    AND (
+    p."parentPostId" IS NULL
+    OR (p."isRepost" = TRUE OR p."isQuotePost" = TRUE) 
+  );
 `;
 
 const getReplies = `
@@ -192,7 +235,7 @@ const getReplies = `
   post_replies_reposts AS (
     SELECT
       "parentPostId",
-      COUNT(*)::INT AS "numberOfReplies",
+      COUNT(CASE WHEN "isRepost" = FALSE AND "isQuotePost" = FALSE THEN 1 END)::INT AS "numberOfReplies",
       COUNT(CASE WHEN "isRepost" = TRUE THEN 1 END) AS "numberOfReposts"
     FROM post
     WHERE "parentPostId" IS NOT NULL
@@ -226,8 +269,10 @@ const getReplies = `
   INNER JOIN app_user AS u
     ON p."userId" = u."userId"
 
-  WHERE p."parentPostId" = $2
-    AND p."deleted" = FALSE
+  WHERE p."deleted" = FALSE
+    AND p."parentPostId" = $2
+    AND p."isRepost" = FALSE
+    AND p."isQuotePost" = FALSE
   ORDER BY "numberOfLikes" DESC, "timestamp" DESC;
 `;