// Helper method for filling dummy data into the Conversation table
protected void btnInsertCommand_Click(object sender, EventArgs e)
{
Conversation newConvo = new Conversation();
newConvo.ParticipantA_ID = 12;
newConvo.ParticipantB_ID = 1;
Message msg1 = new Message();
msg1.SenderID = 12;
msg1.Timestamp = DateTime.Now;
msg1.Content = "How did you get on on Saturday";
Message msg2 = new Message();
msg2.SenderID = 1;
msg2.Timestamp = DateTime.Now;
msg2.Content = "What was on Saturday?";
Message msg3 = new Message();
msg3.SenderID = 1;
msg3.Timestamp = DateTime.Now;
msg3.Content = "Wait, oh the cinema. Yeah it was nice. Good movie, highly recommended.";
Message msg4 = new Message();
msg4.SenderID = 12;
msg4.Timestamp = DateTime.Now;
msg4.Content = "Which film was it again?";
newConvo.MessagesList.Add(msg1);
newConvo.MessagesList.Add(msg2);
newConvo.MessagesList.Add(msg3);
newConvo.MessagesList.Add(msg4);
messageManager.InsertIntoConvoTable(newConvo);
}
public bool AddNewConversation(Conversation newConvo)
{
bool isAddedSuccessfully = false;
try
{
messageManager = new DALMessageMngr();
if (messageManager.AddNewConversation(newConvo))
{
isAddedSuccessfully = true;
}
}
catch (Exception ex)
{
throw;
}
return isAddedSuccessfully;
}
protected void imgBtnSendMessage_Click(object sender, ImageClickEventArgs e)
{
/*
* This button does three things:
* 1. It saves the latest message to selectedConvo.MessageList.
* 2. It sends the entire conversation to the database to be refreshed and then stored.
* 3. It refreshes the repeater.
*
* The second point seems excessive as there will therefore be a database call every time
* a message is sent. But for users who expect to be able to message one another,
* a narrow frame of time between messages being sent and received,
* and therefore stored in the database and fetched, is essential.
* */
try
{
// Point 1.
Message newMessage = new Message();
newMessage.SenderID = user.ID;
newMessage.Timestamp = DateTime.Now;
newMessage.Content = txtNewMessage.Text;
selectedConversation.MessagesList.Add(newMessage);
// Point 2.
selectedConversation = messageManager.UpdateConvoTable(selectedConversation);
// Point 3.
PopulateMessageThread(selectedConversation);
txtNewMessage.Text = "";
}
catch (Exception)
{
Page.ClientScript.RegisterStartupScript(this.GetType(), "Error", "alert('Error sending message. Message not delivered.')", true);
throw;
}
}
protected void closeThisMessage_Click1(object sender, EventArgs e)
{
MessageThread.Visible = false;
mySummaries.Visible = true;
selectedConversation = null;
}
private void PopulateMessageThread(Conversation convo)
{
/* This fills rptconvoMessages with all the messages in selectedConvo
* and assigns CSS classes according to the message's sender.
* */
rptconvoMessages.DataSource = convo.MessagesList;
rptconvoMessages.DataBind();
}
protected void Page_Load(object sender, EventArgs e)
{
// Instantiate selectedConversation, if required.
if (selectedConversation == null)
{
selectedConversation = new Conversation();
}
// Check if query string contains ConversationID value
String selectedConvoID = Request.ServerVariables["QUERY_STRING"];
if (selectedConvoID.Length > 0 && conversationList.Count > 0)
{
/* If a conversation was selected, retreive the selected conversation
* according to its ID in conversation<List> and present its messages to the user.
* */
int selectedIDasInt;
if (int.TryParse(selectedConvoID, out selectedIDasInt))
{
for (int i = 0; i < conversationList.Count; i++)
{
if (conversationList.ElementAt(i).ConversationID.Equals(selectedIDasInt))
{
selectedConversation = conversationList.ElementAt(i);
break;
}
}
mySummaries.Visible = false;
MessageThread.Visible = true;
PopulateMessageThread(selectedConversation);
}
}
try
{
userManager = new BLLUserMngr();
user = userManager.BLLGetCurrentUser(Session);
messageManager = new BLLMessageMngr(user.ID);
getMessages();
}
catch (Exception)
{
//Log error
Response.Redirect("404.aspx");
}
}
public Conversation UpdateConvoTable(Conversation selectedConvo)
{
selectedConvo = messageManager.UpdateConvoTable(selectedConvo);
return selectedConvo;
}
public void InsertIntoConvoTable(Conversation newConvo)
{
messageManager.InsertIntoConvoTable(newConvo);
}