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T1704011110

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Leander
2017-04-01 11:10:06 +02:00
parent 554c8f1331
commit 8c193673ab
5 changed files with 70 additions and 18 deletions
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6
Database.php
View File

@@ -6,6 +6,9 @@
* Date: 02/03/2017
* Time: 09:59
*/
require_once('includes.inc.php');
class Database
{
private $db;
@@ -14,6 +17,7 @@ class Database
$this->db = pg_connect("host=".DATABASE_URL." dbname=".DATABASE_NAME." user=".DATABASE_USER." password=".DATABASE_PASSWORD);
}
// Execute $sql unsing array $params as params when needed.
function query($sql, $params = null) {
$result = null;
if($params) {
@@ -33,6 +37,7 @@ class Database
return $query_response;
}
// Create response to API request.
function create_response($data, $error, $values = null) {
$status_message = Database::create_status_code($error, $values);
$meta = array('status'=>$error, 'message'=>$status_message);
@@ -40,6 +45,7 @@ class Database
return $response_element_json;
}
// Create status message from status code.
function create_status_code($error, $values) {
switch ($error) {
case 0:

37
Question.php Normal file
View File

@@ -0,0 +1,37 @@
<?php
/**
* Created by PhpStorm.
* User: leanderschmedemann
* Date: 01/04/2017
* Time: 10:08
*/
require_once('includes.inc.php');
class Question
{
private $question;
private $answers;
private $right_answer_position;
function __construct($offset, $db) {
$qid = $db->query('SELECT * FROM "Questions" ORDER BY "ID" OFFSET $1 LIMIT 1', array($offset));
$q = $db->query('SELECT "question" FROM "Questions" WHERE "ID" = $1', array($qid));
$a0 = $db->query('SELECT "answer0" FROM "Questions" WHERE "ID" = $1', array($qid));
$a1 = $db->query('SELECT "answer1" FROM "Questions" WHERE "ID" = $1', array($qid));
$a2 = $db->query('SELECT "answer2" FROM "Questions" WHERE "ID" = $1', array($qid));
$a3 = $db->query('SELECT "answer3" FROM "Questions" WHERE "ID" = $1', array($qid));
$cid = $db->query('SELECT "Categories_ID" FROM '
$this->question = $q;
$this->answers = array('a0' => $a0, 'a1' => $a1, 'a2' => $a2, 'a3' => $a3);
shuffle($this->answers);
$this->right_answer_position = array_search('a0', $this->answers);
}
// Create the question message for API.
function get_question() {
}
}

1
includes.inc.php
View File

@@ -11,5 +11,6 @@
require_once('config.inc.php');
require_once('header.inc.php');
require_once('Database.php');
require_once('Question.php');
?>

12
register.php
View File

@@ -12,17 +12,17 @@
$error = 0;
$name = $_GET['name'];
$uid = md5(uniqid(rand(), true));
$database = new Database();
$db = new Database();
$numbers = range(0, 19);
shuffle($numbers);
for($i = 0; $i < 20; $i++){
print $numbers[$i];
}
$v = $db->query('SELECT * FROM "Questions" ORDER BY "ID" OFFSET $1 LIMIT 1', array(0));
print $v;
if(preg_match(PATTERN, $name) != 1 or !$name) {
$error = 11101;
} else {
// Create user.
$db->query('INSERT INTO "Users" ("ID", "name") VALUES ($1, $2)', array($uid, $name));
// Create error if user to create already exists.
if(preg_match('/violates unique constraint "Users_name_unique"/', pg_last_error()) == 1) {
$error = 11102;
} else {

32
start.php
View File

@@ -13,8 +13,15 @@
$uid = $_GET['uid'];
$length = $_GET['length'];
$length = (($length === '0') || ($length && gettype(+$length) == 'integer')) ? +$_GET['length'] : 10;
$database = new Database();
$questions_count = $database->query('SELECT COUNT(*) FROM "Questions"')['data'][0]['count'];
$db = new Database();
$questions_count = $db->query('SELECT COUNT(*) FROM "Questions"')['data'][0]['count'];
// Return $count random, non repeating numbers in range from $min to $max.
function random_numbers($min, $max, $count){
$numbers = range($min, $max);
shuffle($numbers);
return array_slice($numbers, 0, $count-1);
}
if($length == 0) {
$error = 12101;
@@ -22,19 +29,20 @@
$error = 12102;
$values = array($questions_count);
} else {
if($database->query('SELECT EXISTS (SELECT 1 FROM "Games" WHERE "ID" = $1)', array($uid)) == 't') {
$database->query('DELETE FROM "Games" WHERE "ID" = $1', array($uid));
// Delete existing game for user.
if($db->query('SELECT EXISTS (SELECT 1 FROM "Games" WHERE "ID" = $1)', array($uid)) == 't') {
$db->query('DELETE FROM "Games" WHERE "ID" = $1', array($uid));
}
$database->query('INSERT INTO "Games" ("ID") VALUES ($1)', array($uid));
for($i = 0; $i < $length; $i++) {
do {
$offset = rand(0, $questions_count-1);
$question = $database->query('SELECT "ID" FROM "Questions" OFFSET $1 LIMIT 1', array($offset));
$database->query('INSERT INTO "GamesQuestions" ("Games_ID", "Questions_ID") VALUES ($1, $2)',
array($uid, $question));
} while(pg_last_error != '');
// Create new game for user.
$db->query('INSERT INTO "Games" ("ID") VALUES ($1)', array($uid));
// Find questions for new game and insert into table.
$questions = random_numbers(0, $questions_count-1, $length);
foreach($questions as $question) {
$q = $db->query('SELECT "ID" FROM "Questions" OFFSET $1 LIMIT 1', array($question));
$db->query('INSERT INTO "GamesQuestions" ("Games_ID", "Questions_ID") VALUES ($1, $2)', array($uid, $q));
}
}
$response = Database::create_response($data, $error, $values);
print $response;
?>