sebse/postgrachelor-php
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code restructured

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This commit is contained in:
Leander
2017-05-01 21:01:54 +02:00
parent 2fef4dc157
commit aa4fe851d0
9 changed files with 338 additions and 96 deletions
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48
start.php
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@@ -10,11 +10,17 @@ 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;
$uid = isset($_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'];
$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, $count){
@@ -32,19 +38,43 @@ if($uid == '') {
$values = array($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(
$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));
$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));
$qid = $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, $qid));
}
}