Merge pull request #272 from boostcampwm-2024/feature/be/#271-modifyG…

…etChannelsAPI

[BE][Feat] #271 : 사용자의 채널 리스트 가져올 때 게스트 인원수도 가져오기

backend/src/repositories/channelRepository.js

@@ -125,9 +125,15 @@ export const getGuestByChannelAndGuestIdFromDB = async (channelId, guestId) => {
 export const getChannelsByUserIdFromDB = async userId => {
   try {
     const query = `
-      SELECT id, name, generated_at 
-      FROM "main"."channel"
-      WHERE host_id = $1;
+        SELECT
+            c.id,
+            c.name,
+            c.generated_at,
+            COUNT(g.id) AS guest_count
+        FROM "main"."channel" AS c
+                 LEFT JOIN "main"."guest" AS g ON c.id = g.channel_id
+        WHERE c.host_id = $1
+        GROUP BY c.id;
     `;
     const values = [userId];
     const result = await pool.query(query, values);
@@ -140,6 +146,7 @@ export const getChannelsByUserIdFromDB = async userId => {
       id: channel.id,
       name: channel.name,
       generated_at: channel.generated_at,
+      guest_count: Number(channel.guest_count),
     }));
   } catch (error) {
     console.error('Database error:', error);

backend/swaggerConfig.js

@@ -447,6 +447,7 @@ const swaggerDefinition = {
                 id: { type: 'string' },
                 name: { type: 'string' },
                 generated_at: { type: 'string', format: 'date-time' },
+                guest_count: { type: 'number' },
               },
               required: ['id', 'name', 'generated_at'],
             },