do not delete last email

1 files changed, 7 insertions, 1 deletions

diff --git a/juick-server-jdbc/src/main/java/com/juick/service/EmailServiceImpl.java b/juick-server-jdbc/src/main/java/com/juick/service/EmailServiceImpl.java
index c42641df..57aa59f7 100644
--- a/juick-server-jdbc/src/main/java/com/juick/service/EmailServiceImpl.java
+++ b/juick-server-jdbc/src/main/java/com/juick/service/EmailServiceImpl.java
@@ -20,6 +20,7 @@ package com.juick.service;
 import org.apache.commons.lang3.StringUtils;
 import org.springframework.dao.EmptyResultDataAccessException;
 import org.springframework.jdbc.core.JdbcTemplate;
+import org.springframework.jdbc.core.namedparam.MapSqlParameterSource;
 import org.springframework.stereotype.Repository;
 import org.springframework.transaction.annotation.Transactional;
 
@@ -57,7 +58,12 @@ public class EmailServiceImpl extends BaseJdbcService implements EmailService {
 
     @Override
     public boolean deleteEmail(Integer userId, String account) {
-        return getJdbcTemplate().update("DELETE FROM emails WHERE user_id=? AND email=?", userId, account) > 0;
+        return getNamedParameterJdbcTemplate().update("DELETE FROM emails " +
+                        "WHERE (SELECT COUNT(*) cnt FROM (select user_id, email FROM emails e) c WHERE user_id=:uid) > 1 " +
+                        "AND user_id=:uid AND email=:email",
+                new MapSqlParameterSource()
+                        .addValue("uid", userId)
+                        .addValue("email", account)) > 0;
     }
 
     @Override