From 59b4ee891bb9355278d8f76379fa8bba1f9a9a47 Mon Sep 17 00:00:00 2001 From: Jon Sundin Date: Wed, 31 Jan 2024 01:49:09 +0000 Subject: [PATCH] added updateMessageById --- src/main/java/DAO/MessageDAO.java | 31 +++++++++++++++++++++++++------ 1 file changed, 25 insertions(+), 6 deletions(-) diff --git a/src/main/java/DAO/MessageDAO.java b/src/main/java/DAO/MessageDAO.java index 7412cd5..ad0ceea 100644 --- a/src/main/java/DAO/MessageDAO.java +++ b/src/main/java/DAO/MessageDAO.java @@ -18,8 +18,8 @@ public Message insertMessage(int posted_by, String message_text, long time_poste try { Connection conn = ConnectionUtil.getConnection(); String sql = "INSERT INTO message (posted_by, message_text, time_posted_epoch) " - + "VALUES (?, ?, ?)"; - + + "VALUES (?, ?, ?)"; + PreparedStatement ps = conn.prepareStatement(sql, Statement.RETURN_GENERATED_KEYS); ps.setInt(1, posted_by); ps.setString(2, message_text); @@ -96,6 +96,25 @@ public Message getMessageById(int message_id) { return null; } + public Message updateMessageById(int message_id, String updated_message_text) { + try { + Connection conn = ConnectionUtil.getConnection(); + String sql = "UPDATE message SET message_text = ? WHERE message_id = ?;"; + PreparedStatement ps = conn.prepareStatement(sql); + + ps.setString(1, updated_message_text); + ps.setInt(2, message_id); + int updatedRows = ps.executeUpdate(); + + while (updatedRows > 0) { + return getMessageById(message_id); + } + } catch (SQLException e) { + e.printStackTrace(); + } + return null; + } + public Message deleteMessageById(int message_id) { Message message = getMessageById(message_id); if (message != null) { @@ -103,11 +122,11 @@ public Message deleteMessageById(int message_id) { Connection conn = ConnectionUtil.getConnection(); String sql = "DELETE FROM message WHERE message_id = ?"; PreparedStatement ps = conn.prepareStatement(sql, Statement.RETURN_GENERATED_KEYS); - + ps.setInt(1, message_id); - + int deletedEntity = ps.executeUpdate(); - + if (deletedEntity > 0) { return message; } @@ -117,5 +136,5 @@ public Message deleteMessageById(int message_id) { } return null; } - + }