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indexFromICT33A.php
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indexFromICT33A.php
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<?php
require '../Slim/Slim.php';
\Slim\Slim::registerAutoloader();
$app = new \Slim\Slim();
//GET route
$app->get('/cities','getCities');
$app->get('/cities/:id', 'getLikesForCity');
$app->get('/cities/like/most', 'getMost');
$app->get('/cities/like/least', 'getLeast');
//Add a put route
$app->put('/cities/like','addLike');
$app->put('/cities/unlike','removeLike');
//GET Route
$app->get('/',function(){
$template=<<<EOT
<!DOCTYPE html>
<html><head></head>
<title>Phoenix Slim App</title>
<body><h1>Welcome to Phoenix Slim Web Service!</h1>
<p>Panjapol Chiemsombat 100547314</p>
</body></html>
EOT;
echo $template;
});
function getCities(){
try
{
//First we need to get a connection object to the database server.
$hostname = 'localhost';
$username = 'root';
$password = 'root';
$dbname = 'likeacity';
$dbh = new PDO("mysql:host=$hostname;dbname=$dbname",$username,$password);
//not lets craft an SQL select string
$sql = "SELECT * from citylikes";
//Make sql string into an SQL statement and execute the statement
$stmt = $dbh->prepare($sql);
$stmt->execute();
//fetch records and place in array of objects
$row=$stmt->fetchALL(PDO::FETCH_OBJ);
//IMPORTANT to close connection after you have finished with it.
//There could be hundreds of clients connecting to your site.
//If you don't close connections to database this could slow you system
$dbh = null;
//return array of objects in JSON format
echo json_encode($row);
}catch(PDOException $e){
echo $e->getMessage();
}
}
function getLikesForCity($id)
{
try {
//First we need to get a connection object to the database server.
$hostname = 'localhost';
$username = 'root';
$password = 'root';
$dbname = 'likeacity';
$dbh = new PDO("mysql:host=$hostname;dbname=$dbname", $username, $password);
//not lets craft an SQL select string
$sql = "SELECT * from citylikes where id=:id";
//Make sql string into an SQL statement and execute the statement
$stmt=$dbh->prepare($sql);
$stmt->bindParam("id",$id);
$stmt->execute();
$row=$stmt->fetch(PDO::FETCH_OBJ);
//IMPORTANT to close connection after you have finished with it.
//There could be hundreds of clients connecting to your site.
//If you don't- close connections to database this could slow you system
$dbh = null;
//can simple return the record in json format
echo json_encode($row);
echo "<br/>";
} catch (PDOException $e) {
echo $e->getMessage();
}
}
function getMost(){
try{
//First we need to get a connection object to the database server.
$hostname = 'localhost';
$username = 'root';
$password = 'root';
$dbname = 'likeacity';
$dbh = new PDO("mysql:host=$hostname;dbname=$dbname", $username, $password);
//not lets craft an SQL select string
$sql = "Select * from citylikes Where Likes in (SELECT Max(likes) as likes from citylikes)";
$stmt=$dbh->prepare($sql);
$stmt->execute();
$row=$stmt->fetchALL(PDO::FETCH_OBJ);
//IMPORTANT
$dbh = null;
//
echo json_encode($row);
echo "<br/>";
}catch (PDOException $e) {
echo $e->getMessage();
}
}
function getLeast()
{
try {
//First we need to get a connection object to the database server.
$hostname = 'localhost';
$username = 'root';
$password = 'root';
$dbname = 'likeacity';
$dbh = new PDO("mysql:host=$hostname;dbname=$dbname", $username, $password);
//not lets craft an SQL select string
$sql = "Select * from citylikes Where Likes in (SELECT Min(likes) as likes from citylikes)";
$stmt = $dbh->prepare($sql);
$stmt->execute();
$row = $stmt->fetchALL(PDO::FETCH_OBJ);
//IMPORTANT
$dbh = null;
//
echo json_encode($row);
echo "<br/>";
} catch (PDOException $e) {
echo $e->getMessage();
}
}
//addlike method
function addLike(){
//Code here
//Use slim to get the contents of the HTTP POST request
$request = \Slim\Slim::getInstance()->request();
//the request is in JSON format so we need to decode it
$q = json_decode($request->getBody());
//PDO stuff as usual
// Create SQL UPDATE STRING
$sql = "UPDATE citylikes set likes=likes + 1 Where countryid = :countryid and cityname= :cityname";
try{
// encapsulate connection stuff in a function
$dbh = getConnection();
$stmt=$dbh->prepare($sql);
$stmt->bindParam("countryid",$q->countryid);
$stmt->bindParam("cityname",$q->cityname);
$stmt->execute();
$dbh = null;
} catch(PDOException $e){
echo $e->getMessage();
}
} //end addLike
function removeLike(){
$request = \Slim\Slim::getInstance()->request();
$q = json_decode($request->getBody());
$sql = "UPDATE citylikes SET likes=likes - 1 WHERE countryid = :countryid and cityname= :cityname";
try{
// encapsulate connection stuff in a function
$dbh = getConnection();
$stmt=$dbh->prepare($sql);
$stmt->bindParam("countryid",$q->countryid);
$stmt->bindParam("cityname",$q->cityname);
$stmt->execute();
$dbh = null;
}
catch(PDOException $e){
echo $e->getMessage();
}
}
//encapsulate connection stuff in a function.
//When called this function returnes a reference to a PDO database connection object.
function getConnection(){
//Connection details
$dbhost="127.0.0.1";
$dbUser="root";
$dbpass="root";
$dbName="likeacity";
try{
$dbh = new PDO("mysql:host=$dbhost;dbname=$dbName",$dbUser,$dbpass);
$dbh->setAttribute(PDO::ATTR_ERRMODE,PDO::ERRMODE_EXCEPTION);
return $dbh;
}catch(PDOException $e){
echo "Error PDO Exception";
}
}//End getConnection()
$app->run();