95 lines
1.8 KiB
PHP
95 lines
1.8 KiB
PHP
<?php
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define("SAVE_PATH", __DIR__ . "/../db");
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class Poll
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{
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/**
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* Create a new poll and save it.
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*/
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public static function create_poll($request_data)
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{
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try
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{
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$poll = new Poll();
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$poll->title = $request_data->title;
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$poll->creation_date = (new DateTime())->getTimestamp();
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$id = 0;
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foreach ($request_data->options as $option)
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{
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$poll->options[] = [
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"id" => $id,
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"label" => $option,
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"votes" => 0,
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];
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$id++;
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}
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$poll->gen_new_id();
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$poll->save();
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return $poll;
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}
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catch (Exception $e)
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{ return false; }
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}
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/**
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* Try to load an existing poll.
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* @param string id - Poll ID.
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* @return boolean|Poll - Requested poll if found, false otherwise.
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*/
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public static function load_poll($id)
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{
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$db = dba_open(SAVE_PATH . "/polls.db", "rd");
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if (dba_exists($id, $db))
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{
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$poll = new Poll();
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$saved_poll_data = json_decode(dba_fetch($id, $db));
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$poll->id = $id;
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$poll->title = $saved_poll_data->title;
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$poll->creation_date = $saved_poll_data->creation_date;
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$poll->options = $saved_poll_data->options;
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dba_close($db);
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return $poll;
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}
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else
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{
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dba_close($db);
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return false;
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}
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}
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public $id = null;
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public $title;
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public $creation_date;
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public $options = [];
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public function gen_new_id()
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{
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$db = dba_open(SAVE_PATH . "/polls.db", "rd");
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function gen_id()
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{ return bin2hex(openssl_random_pseudo_bytes(16)); }
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do
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{ $new_id = gen_id(); }
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while(dba_exists($new_id, $db));
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dba_close($db);
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$this->id = $new_id;
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}
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public function save()
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{
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$db = dba_open(SAVE_PATH . "/polls.db", "wd");
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$func = (dba_exists($this->id, $db) ? "dba_replace" : "dba_insert");
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$func($this->id, json_encode([
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"title" => $this->title,
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"creation_date" => $this->creation_date,
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"options" => $this->options,
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]), $db);
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dba_close($db);
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}
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}
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