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T201704041219

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Leander
2017-04-04 12:19:55 +02:00
parent 136c26b9e6
commit 1938283583
5 changed files with 143 additions and 128 deletions
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84
start.php
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@@ -6,51 +6,51 @@
* Time: 14:07
*/
require_once('includes.inc.php');
$data = '';
$error = 0;
$values = null;
$uid = isset($_GET['uid']) ? $_GET['uid'] : '';
$length = isset($_GET['length']) ? $_GET['length'] : '';
$length = (($length === '0') || ($length && gettype(+$length) == 'integer')) ? +$_GET['length'] : 10;
$db = new Database();
$questions_count = $db->query('SELECT COUNT(*) FROM "Questions"')['data'][0]['count'];
require_once('includes.inc.php');
$data = '';
$error = 0;
$values = null;
$uid = isset($_GET['uid']) ? $_GET['uid'] : '';
$length = isset($_GET['length']) ? $_GET['length'] : '';
$length = (($length === '0') || ($length && gettype(+$length) == 'integer')) ? +$_GET['length'] : 10;
$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);
// 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, $count-1);
}
if($uid == '') {
$error = 12101;
} else if($length == 0) {
$error = 12102;
} else if($length > $questions_count) {
$error = 12103;
$values = array($questions_count);
} else {
// Delete existing game for user.
if($db->query('SELECT EXISTS (SELECT 1 FROM "Games" WHERE "ID" = $1)', array($uid))['data'][0]['exists'] == 't') {
$db->query('DELETE FROM "Games" WHERE "ID" = $1', array($uid));
}
if($uid == '') {
$error = 12101;
} else if($length == 0) {
$error = 12102;
} else if($length > $questions_count) {
$error = 12103;
$values = array($questions_count);
} else {
// Delete existing game for user.
if($db->query('SELECT EXISTS (SELECT 1 FROM "Games" WHERE "ID" = $1)', array($uid))['data'][0]['exists'] == 't') {
$db->query('DELETE FROM "Games" WHERE "ID" = $1', array($uid));
}
// Create new game for user.
$db->query('INSERT INTO "Games" ("ID") VALUES ($1)', array($uid));
if(preg_match('/violates foreign key constraint "Games_ID_fkey"/', pg_last_error()) == 1) {
$error = 12104;
}
// 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))['data'][0]['ID'];
$db->query('INSERT INTO "GamesQuestions" ("Games_ID", "Questions_ID") VALUES ($1, $2)', array($uid, $q));
}
// Create new game for user.
$db->query('INSERT INTO "Games" ("ID") VALUES ($1)', array($uid));
if(preg_match('/violates foreign key constraint "Games_ID_fkey"/', pg_last_error()) == 1) {
$error = 12104;
}
// 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))['data'][0]['ID'];
$db->query('INSERT INTO "GamesQuestions" ("Games_ID", "Questions_ID") VALUES ($1, $2)', array($uid, $q));
}
}
$next_question = Question::get_next_question($db, $uid);
$data = array('next' => $next_question);
$next_question = Question::get_next_question($db, $uid);
$data = array('next' => $next_question);
$response = Database::create_response($data, $error, $values);
print_r($response);
$response = Database::create_response($data, $error, $values);
print_r($response);
?>