将删除动态优化为批量删除动态

src/main/resources/com/bao/dating/mapper/PostMapper.xml

@@ -29,8 +29,23 @@
     </insert>
 
     <!--动态删除-->
-    <delete id="deletePostById">
-        DELETE FROM post WHERE post_id = #{postId}
+    <delete id="deletePostByIds">
+        DELETE FROM post WHERE post_id IN
+        <foreach item="postId" index="index" collection="postIds" separator="," open="(" close=")">
+            #{postId}
+        </foreach>
+    </delete>
+    <!--删除收藏记录-->
+    <delete id="1">
+        DELETE FROM post_favorite WHERE post_id = #{postId}
+    </delete>
+    <!--删除点赞记录-->
+    <delete id="2">
+        DELETE FROM post_like WHERE post_id = #{postId}
+    </delete>
+    <!--动态评论删除-->
+    <delete id="3">
+        DELETE FROM comments WHERE post_id = #{postId}
     </delete>
 
     <!--动态查询-->