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Fix bug with empty threads

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This commit is contained in:
Dmitriy Simushev 2013-01-30 09:02:39 +00:00
parent 7e70d5b14b
commit a0161a2c72
1 changed files with 46 additions and 35 deletions
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81
src/messenger/webim/libs/classes/thread.php
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@ -169,50 +169,37 @@ Class Thread {
protected $updatedFields = array();
/**
* Load thread from database or create a new one in the database if $id is empty.
*
* @param int $id ID of the thread to load
* Forbid create instance from outside of the class
*/
protected function __construct($id = null) {
// Get database object
$db = Database::getInstance();
if (! empty($id)) {
// Load thread
$thread_info = $db->query(
"select * from {chatthread} where threadid = :threadid",
array(
':threadid' => $id
),
array('return_rows' => Database::RETURN_ONE_ROW)
);
if (! $thread_info) {
return;
}
$this->threadInfo = $thread_info;
} else {
// Create thread
$db->query("insert into {chatthread} (threadid) values (NULL)");
// Set initial values
// In this case Thread::$threadInfo array use because id of a thread should not be update
$this->threadInfo['threadid'] = $db->insertedId();
}
}
protected function __construct() {}
/**
* Create new empty thread in database
*
* @return boolean|Thread Returns an object of the Thread class or boolean false on failure
* @return boolean|Thread Returns an object of the Thread class or boolean
* false on failure
*/
public static function create() {
// Get database object
$db = Database::getInstance();
// Create new empty thread
$thread = new self();
// Create thread
$db->query("insert into {chatthread} (threadid) values (NULL)");
// Set thread Id
// In this case Thread::$threadInfo array use because id of a thread
// should not be update
$thread->threadInfo['threadid'] = $db->insertedId();
// Check if something went wrong
if (empty($thread->id)) {
return false;
}
// Set initial values
$thread->lastToken = self::nextToken();
$thread->created = time();
return $thread;
@ -221,9 +208,11 @@ Class Thread {
/**
* Create thread object from database info.
*
* @param array $thread_info Associative array of Thread info from database. It must contains ALL thread table's
* @param array $thread_info Associative array of Thread info from database.
* It must contains ALL thread table's
* FIELDS from the database.
* @return boolean|Thread Returns an object of the Thread class or boolean false on failure
* @return boolean|Thread Returns an object of the Thread class or boolean
* false on failure
*/
public static function createFromDbInfo($thread_info) {
// Create new empty thread
@ -247,7 +236,8 @@ Class Thread {
* Load thread from database
*
* @param int $id ID of the thread to load
* @return boolean|Thread Returns an object of the Thread class or boolean false on failure
* @return boolean|Thread Returns an object of the Thread class or boolean
* false on failure
*/
public static function load($id, $last_token = null) {
// Check $id
@ -255,13 +245,34 @@ Class Thread {
return false;
}
// Get database object
$db = Database::getInstance();
// Create new empty thread
$thread = new self();
// Load thread
$thread = new self($id);
$thread_info = $db->query(
"select * from {chatthread} where threadid = :threadid",
array(
':threadid' => $id
),
array('return_rows' => Database::RETURN_ONE_ROW)
);
// There is no thread with such id in database
if (! $thread_info) {
return;
}
// Store thread properties
$thread->threadInfo = $thread_info;
// Check if something went wrong
if ($thread->id != $id) {
return false;
}
// Check last token
if (! is_null($last_token)) {
if ($thread->lastToken != $last_token) {