/**
* Init some properties with the help of outer class
* @param Criteria $criteria The outer class
*/
public function init(Criteria $criteria)
{
// init $this->db
try {
$db = Propel::getDB($criteria->getDbName());
$this->setDB($db);
} catch (Exception $e) {
// we are only doing this to allow easier debugging, so
// no need to throw up the exception, just make note of it.
Propel::log("Could not get a DBAdapter, sql may be wrong", Propel::LOG_ERR);
}
// init $this->realtable
$realtable = $criteria->getTableForAlias($this->table);
$this->realtable = $realtable ? $realtable : $this->table;
}
/**
* Method to create an SQL query based on values in a Criteria.
*
* This method creates only prepared statement SQL (using ? where values
* will go). The second parameter ($params) stores the values that need
* to be set before the statement is executed. The reason we do it this way
* is to let the PDO layer handle all escaping & value formatting.
*
* @param Criteria $criteria Criteria for the SELECT query.
* @param array &$params Parameters that are to be replaced in prepared statement.
* @return string
* @throws \Propel\Runtime\Exception\RuntimeException Trouble creating the query string.
*/
public static function createSelectSql(Criteria $criteria, &$params)
{
$db = Propel::getServiceContainer()->getAdapter($criteria->getDbName());
$dbMap = Propel::getServiceContainer()->getDatabaseMap($criteria->getDbName());
$fromClause = array();
$joinClause = array();
$joinTables = array();
$whereClause = array();
$orderByClause = array();
$orderBy = $criteria->getOrderByColumns();
$groupBy = $criteria->getGroupByColumns();
// get the first part of the SQL statement, the SELECT part
$selectSql = $db->createSelectSqlPart($criteria, $fromClause);
// Handle joins
// joins with a null join type will be added to the FROM clause and the condition added to the WHERE clause.
// joins of a specified type: the LEFT side will be added to the fromClause and the RIGHT to the joinClause
foreach ($criteria->getJoins() as $join) {
$join->setAdapter($db);
// add 'em to the queues..
if (!$fromClause) {
$fromClause[] = $join->getLeftTableWithAlias();
}
$joinTables[] = $join->getRightTableWithAlias();
$joinClause[] = $join->getClause($params);
}
// add the criteria to WHERE clause
// this will also add the table names to the FROM clause if they are not already
// included via a LEFT JOIN
foreach ($criteria->keys() as $key) {
$criterion = $criteria->getCriterion($key);
$table = null;
foreach ($criterion->getAttachedCriterion() as $attachedCriterion) {
$tableName = $attachedCriterion->getTable();
$table = $criteria->getTableForAlias($tableName);
if ($table !== null) {
$fromClause[] = $table . ' ' . $tableName;
} else {
$fromClause[] = $tableName;
$table = $tableName;
}
if (($criteria->isIgnoreCase() || $attachedCriterion->isIgnoreCase()) && $dbMap->getTable($table)->getColumn($attachedCriterion->getColumn())->isText()) {
$attachedCriterion->setIgnoreCase(true);
}
}
$criterion->setAdapter($db);
$sb = '';
$criterion->appendPsTo($sb, $params);
$whereClause[] = $sb;
}
// Unique from clause elements
$fromClause = array_unique($fromClause);
$fromClause = array_diff($fromClause, array(''));
// tables should not exist in both the from and join clauses
if ($joinTables && $fromClause) {
foreach ($fromClause as $fi => $ftable) {
if (in_array($ftable, $joinTables)) {
unset($fromClause[$fi]);
}
}
}
// Add the GROUP BY columns
$groupByClause = $groupBy;
$having = $criteria->getHaving();
$havingString = null;
if ($having !== null) {
$sb = '';
$having->appendPsTo($sb, $params);
$havingString = $sb;
}
if (!empty($orderBy)) {
foreach ($orderBy as $orderByColumn) {
// Add function expression as-is.
if (strpos($orderByColumn, '(') !== false) {
$orderByClause[] = $orderByColumn;
continue;
}
// Split orderByColumn (i.e. "table.column DESC")
$dotPos = strrpos($orderByColumn, '.');
if ($dotPos !== false) {
$tableName = substr($orderByColumn, 0, $dotPos);
$columnName = substr($orderByColumn, $dotPos + 1);
} else {
$tableName = '';
$columnName = $orderByColumn;
}
$spacePos = strpos($columnName, ' ');
if ($spacePos !== false) {
$direction = substr($columnName, $spacePos);
$columnName = substr($columnName, 0, $spacePos);
} else {
$direction = '';
}
$tableAlias = $tableName;
if ($aliasTableName = $criteria->getTableForAlias($tableName)) {
$tableName = $aliasTableName;
}
$columnAlias = $columnName;
if ($asColumnName = $criteria->getColumnForAs($columnName)) {
$columnName = $asColumnName;
}
$column = $tableName ? $dbMap->getTable($tableName)->getColumn($columnName) : null;
if ($criteria->isIgnoreCase() && $column && $column->isText()) {
$ignoreCaseColumn = $db->ignoreCaseInOrderBy("{$tableAlias}.{$columnAlias}");
$orderByClause[] = $ignoreCaseColumn . $direction;
$selectSql .= ', ' . $ignoreCaseColumn;
} else {
$orderByClause[] = $orderByColumn;
}
}
}
if (empty($fromClause) && $criteria->getPrimaryTableName()) {
$fromClause[] = $criteria->getPrimaryTableName();
}
// tables should not exist as alias of subQuery
if ($criteria->hasSelectQueries()) {
foreach ($fromClause as $key => $ftable) {
if (strpos($ftable, ' ') !== false) {
list($realtable, $tableName) = explode(' ', $ftable);
} else {
$tableName = $ftable;
}
if ($criteria->hasSelectQuery($tableName)) {
unset($fromClause[$key]);
}
}
}
// from / join tables quoted if it is necessary
if ($db->useQuoteIdentifier()) {
$fromClause = array_map(array($db, 'quoteIdentifierTable'), $fromClause);
$joinClause = $joinClause ? $joinClause : array_map(array($db, 'quoteIdentifierTable'), $joinClause);
}
// add subQuery to From after adding quotes
foreach ($criteria->getSelectQueries() as $subQueryAlias => $subQueryCriteria) {
$fromClause[] = '(' . BasePeer::createSelectSql($subQueryCriteria, $params) . ') AS ' . $subQueryAlias;
}
// build from-clause
$from = '';
if (!empty($joinClause) && count($fromClause) > 1) {
$from .= implode(" CROSS JOIN ", $fromClause);
} else {
$from .= implode(", ", $fromClause);
}
$from .= $joinClause ? ' ' . implode(' ', $joinClause) : '';
// Build the SQL from the arrays we compiled
$sql = $selectSql . " FROM " . $from . ($whereClause ? " WHERE " . implode(" AND ", $whereClause) : "") . ($groupByClause ? " GROUP BY " . implode(",", $groupByClause) : "") . ($havingString ? " HAVING " . $havingString : "") . ($orderByClause ? " ORDER BY " . implode(",", $orderByClause) : "");
// APPLY OFFSET & LIMIT to the query.
if ($criteria->getLimit() || $criteria->getOffset()) {
$db->applyLimit($sql, $criteria->getOffset(), $criteria->getLimit(), $criteria);
}
return $sql;
}
