/*
* @name - getAllConversations()
* @params - selectedUserID: Int
* @return - void
* @description: - gets all users conversations in sender and receiver tables,
* but does not return any message belowing to those tables. Only the IDs of the users.
*/
public void getAllConversations(int usersID)
{
DataTable senders = Conversations.getConversationSenders(usersID);
DataTable receivers = Conversations.getConversationReceivers(usersID);
// Ensure that both or one at least contains some rows
if (senders.Rows.Count == 0 && receivers.Rows.Count == 0)
{
MessageBox.Show("No conversations found.");
}
else
{
if (senders.Rows.Count != 0)
{
// Add senders to users conversations list
for (var s = 0; s < senders.Rows.Count; s++)
{
Conversations newConvo = new Conversations(Convert.ToInt32(senders.Rows[s][0]), Convert.ToInt32(senders.Rows[s][1]));
userConversationsList.Add(newConvo);
}
}
if (receivers.Rows.Count != 0)
{
// Add receivers to users conversations list
for (var r = 0; r < receivers.Rows.Count; r++)
{
Conversations newConvo = new Conversations(Convert.ToInt32(receivers.Rows[r][0]), Convert.ToInt32(receivers.Rows[r][1]));
userConversationsList.Add(newConvo);
}
}
}
}
/*
* @name - addMessage()
* @params - newMessage: Messages, currentConversation: Conversations
* @return - void
* @description: - used to open up a basic insert query into the messages tabling consiting of
* the users input message of a given conversation.
*/
public static void addMessage(Messages newMessage, Conversations currentConversation)
{
// QUERY: Used to insert a new message into the Messages table
string insertMessageQuery = "INSERT INTO isad157_tadams.messages (message_text, message_date_time) VALUES ('" + newMessage.getMessageText() + "', '" + newMessage.getMessageDateTime() + "')";
using (MySqlConnection connection = new MySqlConnection(DBConnection.connectionString))
{
// Open database connection
connection.Open();
// Create a new query command against the connection
MySqlCommand cmd = new MySqlCommand(insertMessageQuery, connection);
// Fill datatable based on returned data
MySqlDataAdapter sqlDA = new MySqlDataAdapter(cmd);
DataTable messagesTable = new DataTable();
sqlDA.Fill(messagesTable);
}
// Assumption: Insertion into the join tables here also...
}
/*
* @name - getConversationMessages()
* @params - selectedConversation: Conversations
* @return - void
* @description: - attempts to collect all receiver and sender messages for the given conversation and
* stores messages per instance, to keep a unique storage per object.
*/
public void getConversationMessages(Conversations selectedConversation)
{
List <int> listOfMessageIDs = new List <int>();
// Used to get the senders messages
string getSendersMessageIDs = "SELECT message_senders.message_id_fk FROM isad157_tadams.message_senders, isad157_tadams.message_receivers WHERE(sender_id_fk = " + selectedConversation.getSenderID() + " AND message_receivers.message_id_fk= message_senders.message_id_fk)";
using (MySqlConnection connection = new MySqlConnection(DBConnection.connectionString))
{
// Open database connection
connection.Open();
// Create a new query command against the connection
MySqlCommand cmd = new MySqlCommand(getSendersMessageIDs, connection);
// Fill datatable based on returned data
MySqlDataAdapter sqlDA = new MySqlDataAdapter(cmd);
DataTable senderTable = new DataTable();
sqlDA.Fill(senderTable);
// Check to see if sender has any messages in the current conversation
if (senderTable.Rows.Count == 0)
{
return;
}
else
{
// Loop across all sender message IDs and store.
for (var s = 0; s < senderTable.Rows.Count; s++)
{
listOfMessageIDs.Add(Convert.ToInt32(senderTable.Rows[s][0]));
}
}
}
// Used to get the receivers messages
string getReceiversMessageIDs = "SELECT message_receivers.message_id_fk FROM isad157_tadams.message_senders, isad157_tadams.message_receivers WHERE(receiver_id_fk = " + selectedConversation.getReceiverID() + " AND message_senders.message_id_fk= message_receivers.message_id_fk)";
using (MySqlConnection connection = new MySqlConnection(DBConnection.connectionString))
{
// Open database connection
connection.Open();
// Create a new query command against the connection
MySqlCommand cmd = new MySqlCommand(getReceiversMessageIDs, connection);
// Fill datatable based on returned data
MySqlDataAdapter sqlDA = new MySqlDataAdapter(cmd);
DataTable receiverTable = new DataTable();
sqlDA.Fill(receiverTable);
// Check to see if receiver has any messages in the current conversation
if (receiverTable.Rows.Count == 0)
{
return;
}
else
{
// Loop across all received message IDs and store.
for (var s = 0; s < receiverTable.Rows.Count; s++)
{
listOfMessageIDs.Add(Convert.ToInt32(receiverTable.Rows[s][0]));
}
}
}
for (var q = 0; q < listOfMessageIDs.Count; q++)
{
// Used to get the receivers messages
string getAllConversationMessages = "SELECT * FROM isad157_tadams.messages WHERE message_id = " + listOfMessageIDs[q];
using (MySqlConnection connection = new MySqlConnection(DBConnection.connectionString))
{
// Open database connection
connection.Open();
// Create a new query command against the connection
MySqlCommand cmd = new MySqlCommand(getAllConversationMessages, connection);
// Fill datatable based on returned data
MySqlDataAdapter sqlDA = new MySqlDataAdapter(cmd);
DataTable messagesTable = new DataTable();
sqlDA.Fill(messagesTable);
// Check to see if receiver has any messages in the current conversation
if (messagesTable.Rows.Count == 0)
{
return;
}
else
{
// Loop across all messages and add to global List of messages for this conversation
for (var s = 0; s < messagesTable.Rows.Count; s++)
{
Messages currentMessage = new Messages(Convert.ToInt32(messagesTable.Rows[s][0]), Convert.ToString(messagesTable.Rows[s][1]), Convert.ToDateTime(messagesTable.Rows[s][2]));
conversationMessages.Add(currentMessage);
}
}
}
}
}