/**
* Transforms the filters' string into an array of FilterOptions objects.
*
* @param string $filtersString
* @param string $filtersDelimiter
* @param string $expressionDelimiter
* @param string $intervalDelimiter
*
* @return array $filtersOptions
*
* @throws \InvalidArgumentException
*/
public function stripFilterQueryToFilterOptions($filtersString, $filtersDelimiter, $filtersOrDelimiter, $expressionDelimiter, $intervalDelimiter)
{
/* explode the filters string received into an array of individual strings
representing a single filter */
$filtersStringArray = explode($filtersDelimiter, substr($filtersString, 1, -1));
foreach ($filtersStringArray as $key => $filterString) {
if (sizeof(explode('=', $filterString)) > 1) {
$filterOptions = new FilterOptions();
$filterAttributeValue[] = explode('=', $filterString);
/* we have to deal with an expression if $exprWithValues has
more than 1 element, separated by the $expressionDelimiter
so we set the expression and the values to the $filterOptions object */
if (sizeof($exprWithValues = explode($expressionDelimiter, $filterAttributeValue[$key][1])) > 1) {
$filterOptions->setExpression(array_shift($exprWithValues));
/* if the OR delimiter is found in the $exprWithValues string,
explode by the said delimiter */
if (strpos($exprWithValues[0], $filtersOrDelimiter)) {
$exprWithValues = explode($filtersOrDelimiter, $exprWithValues[0]);
}
/* if the interval delimiter is found in the $exprWithValues string,
explode by the said delimiter */
if (strpos($exprWithValues[0], $intervalDelimiter)) {
$exprWithValues = explode($intervalDelimiter, $exprWithValues[0]);
}
$filterOptions->setValues($exprWithValues);
/* we have to deal with the default expression so we set only the
* value to the $filterOptions
*/
} else {
/* if the OR delimiter is found in the filterValues string,
* explode by the said delimiter
*/
if (strpos($filterAttributeValue[$key][1], $filtersOrDelimiter)) {
$filterOrValues = explode($filtersOrDelimiter, $filterAttributeValue[$key][1]);
}
$filterOptions->setValues(isset($filterOrValues) ? $filterOrValues : $filterAttributeValue[$key][1]);
}
/* explode string before '=' to determine if the filter is in related entity */
$filterPath = explode('.', $filterAttributeValue[$key][0]);
$filterOptions->setName(array_pop($filterPath));
if (sizeof($filterPath) > 0) {
$filterOptions->setPathArray($filterPath);
}
$filtersOptions[] = $filterOptions;
} else {
/* TODO: refactor this when implementing logs all over the project */
$this->logger->error('Invalid arguments in filter usage.', array('path' => '\\Pitech\\FiltersBundle\\Helper\\FilterHelper', 'function' => 'stripFilterQueryToFilterOptions', 'filter_string' => $filtersString));
throw new \InvalidArgumentException();
}
}
return $filtersOptions;
}
