dbConnect){
$conn = new mysqli($this->host, $this->user, $this->password, $this->database);
if($conn->connect_error){
die("Error failed to connect to MySQL: " . $conn->connect_error);
}else{
$this->dbConnect = $conn;
}
}
}
private function getData($sqlQuery) {
$result = mysqli_query($this->dbConnect, $sqlQuery);
if(!$result){
die('Error in query: '. mysqli_error());
}
$data= array();
while ($row = mysqli_fetch_array($result)) {
$data[]=$row;
}
return $data;
}
private function getNumRows($sqlQuery) {
$result = mysqli_query($this->dbConnect, $sqlQuery);
if(!$result){
die('Error in query: '. mysqli_error());
}
$numRows = mysqli_num_rows($result);
return $numRows;
}
public function loginUsers($username, $password){
$sqlQuery = "
SELECT userid, username
FROM ".$this->chatUsersTable."
WHERE userid='".$username."' AND password='".$password."'";
return $this->getData($sqlQuery);
}
public function chatUsers($userid){
$sqlQuery = "
SELECT * FROM ".$this->chatUsersTable."
WHERE userid != '$userid'";
return $this->getData($sqlQuery);
}
public function getUserDetails($userid){
$sqlQuery = "
SELECT * FROM ".$this->chatUsersTable."
WHERE userid = '$userid'";
return $this->getData($sqlQuery);
}
public function getUserAvatar($userid){
$sqlQuery = "
SELECT avatar
FROM ".$this->chatUsersTable."
WHERE userid = '$userid'";
$userResult = $this->getData($sqlQuery);
$userAvatar = '';
foreach ($userResult as $user) {
$userAvatar = $user['avatar'];
}
return $userAvatar;
}
public function updateUserOnline($userId, $online) {
$sqlUserUpdate = "
UPDATE ".$this->chatUsersTable."
SET online = '".$online."'
WHERE userid = '".$userId."'";
mysqli_query($this->dbConnect, $sqlUserUpdate);
}
public function insertChat($reciever_userid, $user_id, $chat_message) {
$sqlInsert = "
INSERT INTO ".$this->chatTable."
(reciever_userid, sender_userid, message, status)
VALUES ('".$reciever_userid."', '".$user_id."', '".$chat_message."', '1')";
$result = mysqli_query($this->dbConnect, $sqlInsert);
if(!$result){
return ('Error in query: '. mysqli_error());
} else {
$conversation = $this->getUserChat($user_id, $reciever_userid);
$data = array(
"conversation" => $conversation
);
echo json_encode($data);
}
}
public function getUserChat($from_user_id, $to_user_id) {
$fromUserAvatar = $this->getUserAvatar($from_user_id);
$toUserAvatar = $this->getUserAvatar($to_user_id);
$sqlQuery = "
SELECT * FROM ".$this->chatTable."
WHERE (sender_userid = '".$from_user_id."'
AND reciever_userid = '".$to_user_id."')
OR (sender_userid = '".$to_user_id."'
AND reciever_userid = '".$from_user_id."')
ORDER BY timestamp ASC";
$userChat = $this->getData($sqlQuery);
$conversation = '';
foreach($userChat as $chat){
$user_name = '';
if($chat["sender_userid"] == $from_user_id) {
$conversation .= '- ';
$conversation .= '
';
} else {
$conversation .= ' - ';
$conversation .= '
';
}
$conversation .= ''.$chat["message"].'
';
$conversation .= ' ';
}
$conversation .= '
';
return $conversation;
}
public function showUserChat($from_user_id, $to_user_id) {
$userDetails = $this->getUserDetails($to_user_id);
$toUserAvatar = '';
foreach ($userDetails as $user) {
$toUserAvatar = $user['avatar'];
$userSection = '
'.$user['username'].'
';
}
// get user conversation
$conversation = $this->getUserChat($from_user_id, $to_user_id);
// update chat user read status
$sqlUpdate = "
UPDATE ".$this->chatTable."
SET status = '0'
WHERE sender_userid = '".$to_user_id."' AND reciever_userid = '".$from_user_id."' AND status = '1'";
mysqli_query($this->dbConnect, $sqlUpdate);
// update users current chat session
$sqlUserUpdate = "
UPDATE ".$this->chatUsersTable."
SET current_session = '".$to_user_id."'
WHERE userid = '".$from_user_id."'";
mysqli_query($this->dbConnect, $sqlUserUpdate);
$data = array(
"userSection" => $userSection,
"conversation" => $conversation
);
echo json_encode($data);
}
public function getUnreadMessageCount($senderUserid, $recieverUserid) {
$sqlQuery = "
SELECT * FROM ".$this->chatTable."
WHERE sender_userid = '$senderUserid' AND reciever_userid = '$recieverUserid' AND status = '1'";
$numRows = $this->getNumRows($sqlQuery);
$output = '';
if($numRows > 0){
$output = $numRows;
}
return $output;
}
public function updateTypingStatus($is_type, $loginDetailsId) {
$sqlUpdate = "
UPDATE ".$this->chatLoginDetailsTable."
SET is_typing = '".$is_type."'
WHERE id = '".$loginDetailsId."'";
mysqli_query($this->dbConnect, $sqlUpdate);
}
public function fetchIsTypeStatus($userId){
$sqlQuery = "
SELECT is_typing FROM ".$this->chatLoginDetailsTable."
WHERE userid = '".$userId."' ORDER BY last_activity DESC LIMIT 1";
$result = $this->getData($sqlQuery);
$output = '';
foreach($result as $row) {
if($row["is_typing"] == 'yes'){
$output = ' - Typing...';
}
}
return $output;
}
public function insertUserLoginDetails($userId) {
$sqlInsert = "
INSERT INTO ".$this->chatLoginDetailsTable."(userid)
VALUES ('".$userId."')";
mysqli_query($this->dbConnect, $sqlInsert);
$lastInsertId = mysqli_insert_id($this->dbConnect);
return $lastInsertId;
}
public function updateLastActivity($loginDetailsId) {
$sqlUpdate = "
UPDATE ".$this->chatLoginDetailsTable."
SET last_activity = now()
WHERE id = '".$loginDetailsId."'";
mysqli_query($this->dbConnect, $sqlUpdate);
}
public function getUserLastActivity($userId) {
$sqlQuery = "
SELECT last_activity FROM ".$this->chatLoginDetailsTable."
WHERE userid = '$userId' ORDER BY last_activity DESC LIMIT 1";
$result = $this->getData($sqlQuery);
foreach($result as $row) {
return $row['last_activity'];
}
}
}
?>