/**
* Stores an ISSN Range.
*
* @param boolean $updateNulls True to update fields even if they are null.
*
* @return boolean True on success, false on failure.
*
* @since 1.6
*/
public function store($updateNulls = false)
{
// Transform the params field
if (isset($this->params) && is_array($this->params)) {
$registry = new Registry();
$registry->loadArray($this->params);
$this->params = (string) $registry;
}
// Get date and user
$date = JFactory::getDate();
$user = JFactory::getUser();
if ($this->id) {
// Existing item
$this->modified_by = $user->get('username');
$this->modified = $date->toSql();
// If this object is active, disactivate all the others
if (!$this->is_closed && $this->is_active) {
self::disactivateOther($this->id);
}
} else {
// New item
$this->created_by = $user->get('username');
$this->created = $date->toSql();
$this->free = $this->range_end - $this->range_begin + 1;
// Add ISSN range helper file
require_once JPATH_COMPONENT . '/helpers/issnrange.php';
// Get range begin check digit
$rangeBeginCheckDigit = IssnrangeHelper::countIssnCheckDigit($this->block . $this->range_begin);
// Set range begin check digit
$this->range_begin .= $rangeBeginCheckDigit;
// Set next pointer
$this->next = $this->range_begin;
// Get range end check digit
$rangeEndCheckDigit = IssnrangeHelper::countIssnCheckDigit($this->block . $this->range_end);
// Set range end check digit
$this->range_end .= $rangeEndCheckDigit;
// If this object is active, disactivate all the others
if ($this->is_active) {
self::disactivateOther(0);
}
}
return parent::store($updateNulls);
}
/**
* Updates the range matching the given identifier id and decreases its
* next pointer by one. Also free and taken properties are updated
* accordingly.
* @param integer $rangeId id of the range to be updated
* @return boolean true if and only if the operation succeeds; otherwise
* false
*/
public function decreaseByOne($rangeId)
{
// Get db access
$table = $this->getTable();
// Get ISBN range object
$range = $table->getRange($rangeId, false);
// Check that we have a result
if ($range != null) {
// Update free
$range->free += 1;
// Update taken
$range->taken -= 1;
// Check if closed
if ($range->is_closed) {
// Update is_closed and is_active
$range->is_closed = false;
$range->is_active = true;
// Range reopened, range end becomes next pointer
$range->next = $range->range_end;
} else {
// Decrease next pointer
$range->next = substr($range->next, 0, 3) - 1;
// Next pointer is a string, add left padding
$range->next = str_pad($range->next, 3, "0", STR_PAD_LEFT);
// Add ISSN range helper file
require_once JPATH_COMPONENT . '/helpers/issnrange.php';
// Get next pointer check digit
$rangeNextCheckDigit = IssnrangeHelper::countIssnCheckDigit($range->block . $range->next);
// Set next pointer check digit
$range->next .= $rangeNextCheckDigit;
// Validate next pointer
if (!IssnrangeHelper::validateIssn($range->block . $range->next)) {
$this->setError(JText::_('COM_ISSNREGISTRY_ERROR_ISSN_RANGE_UPDATE_INVALID_NEXT_POINTER'));
return false;
}
}
// Update to db
if ($table->updateDecrease($range)) {
return true;
}
}
return false;
}