完成收藏模块

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

@@ -42,10 +42,26 @@
     <update id="decreaseLikeCount">
         update dating.post set like_count= like_count - 1 where post.post_id = #{postId}
     </update>
+    <!--增加收藏数量-->
+    <update id="increaseFavoriteCount">
+        update post set favorite_count = favorite_count + 1 where post_id = #{post_id}
+    </update>
+    <!--减少收藏数量-->
+    <update id="decreaseFavoriteCount">
+        update post set favorite_count = favorite_count - 1 where post_id = #{post_id}
+    </update>
 
     <!--查询点赞当前数量-->
     <select id="selectLikeCount" resultType="java.lang.Integer">
         select dating.post.like_count from dating.post where post.post_id = #{postId}
     </select>
+    <!--查询当前动态的用户id-->
+    <select id="selectUserIdByPostId" resultType="java.lang.Long">
+        SELECT user_id FROM post WHERE post_id = #{post_id}
+    </select>
+    <!--查询当前收藏数量-->
+    <select id="selectFavoriteCount" resultType="java.lang.Integer">
+        select dating.post.favorite_count from dating.post where post.post_id = #{postId}
+    </select>
 
 </mapper>