/**
* Builds SQL from filters (WHERE or HAVING parts)
*
* @param array $filters Array of Ucc\Data\Filter\Filter objects
* @param array $fieldMap Array representing filed map
* @param boolean $singleTable Marker to indicate single table queries.
* @return string
*/
public static function getFilterSql($filters = array(), $fieldMap = array(), $singleTable = false)
{
$ret = array('paramiters' => array());
$havingFilters = array();
$whereFilters = array();
$table = '';
// Check if filters is a single filter
if (is_a($filters, 'Ucc\\Data\\Filter\\Filter')) {
$filters = array($filters);
}
foreach ($filters as $i => $filter) {
// get Criterions
$criterions = $filter->getCriterions();
$havingFilter = new Data_Filter();
$whereFilter = new Data_Filter();
foreach ($criterions as $criterion) {
if (isset($fieldMap[$criterion->key()])) {
// Get table name from field map
$table = $fieldMap[$criterion->key()];
// Check for wildecard
} elseif (isset($fieldMap['*'])) {
$table = $fieldMap['*'];
}
if (!$singleTable || $singleTable === $table) {
// Allow pseudo tables 'HAVING'
if ($table == 'having') {
$havingFilter->addCriterion($criterion);
} else {
$whereFilter->addCriterion($criterion);
}
}
}
$havingCriterions = $havingFilter->getCriterions();
if (!empty($havingCriterions)) {
$havingFilters[$i] = $havingFilter;
}
$whereFilters[$i] = $whereFilter;
}
$where = Filter::filtersToSqlClause($whereFilters, $fieldMap);
$having = Filter::filtersToSqlClause($havingFilters, $fieldMap);
$whereStatemet = $where->getStatement();
$havingStatement = $having->getStatement();
if (!empty($whereStatemet) && $whereStatemet != '()') {
$ret['where'] = 'WHERE ' . $whereStatemet;
$ret['paramiters'] = array_merge($ret['paramiters'], $where->getParameters());
}
if (!empty($havingStatement)) {
$ret['having'] = 'HAVING ' . $havingStatement;
$ret['paramiters'] = array_merge($ret['paramiters'], $having->getParameters());
}
return $ret;
}
/**
* @dataProvider criterionToSqlClauseProvider
*/
public function testCriterionToSqlClause($criterion, $expected)
{
$result = Db_Filter::criterionToSqlClause($criterion);
$this->assertEquals($expected, $result);
}
