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mirror of synced 2024-12-15 15:46:02 +03:00
doctrine2/lib/Doctrine/Query/Abstract.php
romanb 156cfd4a27 Introduced a separation of the 2 concerns: 1) Query construction 2) Result hydration.
Makes it easier to see the dependencies between these two concerns, cache the results of the query parsing process later on, implement & use alternative hydrators to experiment with different algorithms etc. etc.
Other small refactorings.
2007-11-20 14:26:42 +00:00

1323 lines
38 KiB
PHP

<?php
/*
* $Id: Query.php 1393 2007-05-19 17:49:16Z zYne $
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* This software consists of voluntary contributions made by many individuals
* and is licensed under the LGPL. For more information, see
* <http://www.phpdoctrine.com>.
*/
Doctrine::autoload('Doctrine_Hydrate');
/**
* Doctrine_Query_Abstract
*
* @package Doctrine
* @subpackage Query
* @license http://www.opensource.org/licenses/lgpl-license.php LGPL
* @link www.phpdoctrine.com
* @since 1.0
* @version $Revision: 1393 $
* @author Konsta Vesterinen <kvesteri@cc.hut.fi>
*/
abstract class Doctrine_Query_Abstract
{
/**
* QUERY TYPE CONSTANTS
*/
/**
* constant for SELECT queries
*/
const SELECT = 0;
/**
* constant for DELETE queries
*/
const DELETE = 1;
/**
* constant for UPDATE queries
*/
const UPDATE = 2;
/**
* constant for INSERT queries
*/
const INSERT = 3;
/**
* constant for CREATE queries
*/
const CREATE = 4;
/** @todo document the query states (and the transitions between them). */
const STATE_CLEAN = 1;
const STATE_DIRTY = 2;
const STATE_DIRECT = 3;
const STATE_LOCKED = 4;
protected $_tableAliases = array();
protected $_view;
/**
* @var array $params query input parameters
*/
protected $_params = array('where' => array(),
'set' => array(),
'having' => array());
/* Caching properties */
/**
* @var array
*/
protected $_cache;
/**
* @var boolean $_expireCache A boolean value that indicates whether or not to force cache expiration.
*/
protected $_expireCache = false;
protected $_timeToLive;
/**
* @var Doctrine_Connection The connection used by this query object.
*/
protected $_conn;
/**
* @var array The DQL keywords.
*/
protected static $_keywords = array('ALL',
'AND',
'ANY',
'AS',
'ASC',
'AVG',
'BETWEEN',
'BIT_LENGTH',
'BY',
'CHARACTER_LENGTH',
'CHAR_LENGTH',
'CURRENT_DATE',
'CURRENT_TIME',
'CURRENT_TIMESTAMP',
'DELETE',
'DESC',
'DISTINCT',
'EMPTY',
'EXISTS',
'FALSE',
'FETCH',
'FROM',
'GROUP',
'HAVING',
'IN',
'INDEXBY',
'INNER',
'IS',
'JOIN',
'LEFT',
'LIKE',
'LOWER',
'MEMBER',
'MOD',
'NEW',
'NOT',
'NULL',
'OBJECT',
'OF',
'OR',
'ORDER',
'OUTER',
'POSITION',
'SELECT',
'SOME',
'TRIM',
'TRUE',
'UNKNOWN',
'UPDATE',
'WHERE');
/**
* @var array $parts The SQL query string parts. Filled during the DQL parsing process.
*/
protected $parts = array(
'select' => array(),
'distinct' => false,
'forUpdate' => false,
'from' => array(),
'set' => array(),
'join' => array(),
'where' => array(),
'groupby' => array(),
'having' => array(),
'orderby' => array(),
'limit' => false,
'offset' => false,
);
/**
* @var array $_aliasMap two dimensional array containing the map for query aliases
* Main keys are component aliases
*
* table table object associated with given alias
*
* relation the relation object owned by the parent
*
* parent the alias of the parent
*
* agg the aggregates of this component
*
* map the name of the column / aggregate value this
* component is mapped to a collection
*/
protected $_aliasMap = array();
/**
* @var integer $type the query type
*
* @see Doctrine_Query::* constants
*/
protected $type = self::SELECT;
/**
* @var Doctrine_Hydrator The hydrator object used to hydrate query results.
*/
protected $_hydrator;
/**
* @var array $_tableAliasSeeds A simple array keys representing table aliases and values
* as table alias seeds. The seeds are used for generating short table
* aliases.
*/
protected $_tableAliasSeeds = array();
/**
* @var array $_options an array of options
*/
protected $_options = array(
'fetchMode' => Doctrine::FETCH_RECORD,
'parserCache' => false,
'resultSetCache' => false,
);
/**
* @var array $aggregateMap an array containing all aggregate aliases, keys as dql aliases
* and values as sql aliases
*/
protected $aggregateMap = array();
protected $pendingAggregates = array();
protected $inheritanceApplied = false;
/**
* @var array $_enumParams an array containing the keys of the parameters that should be enumerated
*/
protected $_enumParams = array();
protected $isLimitSubqueryUsed = false;
public function __construct(Doctrine_Connection $connection = null,
Doctrine_Hydrator_Abstract $hydrator = null)
{
if ($connection === null) {
$connection = Doctrine_Manager::getInstance()->getCurrentConnection();
}
if ($hydrator === null) {
$hydrator = new Doctrine_Hydrator_Default();
}
$this->_conn = $connection;
$this->_hydrator = $hydrator;
}
/**
* setOption
*
* @param string $name option name
* @param string $value option value
* @return Doctrine_Query this object
*/
public function setOption($name, $value)
{
if ( ! isset($this->_options[$name])) {
throw new Doctrine_Query_Exception('Unknown option ' . $name);
}
$this->_options[$name] = $value;
}
/**
* hasTableAlias
* whether or not this object has given tableAlias
*
* @param string $tableAlias the table alias to be checked
* @return boolean true if this object has given alias, otherwise false
*/
public function hasTableAlias($tableAlias)
{
return (isset($this->_tableAliases[$tableAlias]));
}
/**
* getTableAliases
* returns all table aliases
*
* @return array table aliases as an array
*/
public function getTableAliases()
{
return $this->_tableAliases;
}
/**
* getQueryPart
* gets a query part from the query part array
*
* @param string $name the name of the query part to be set
* @param string $part query part string
* @throws Doctrine_Hydrate_Exception if trying to set unknown query part
* @return Doctrine_Hydrate this object
*/
public function getQueryPart($part)
{
if ( ! isset($this->parts[$part])) {
throw new Doctrine_Hydrate_Exception('Unknown query part ' . $part);
}
return $this->parts[$part];
}
/**
* setQueryPart
* sets a query part in the query part array
*
* @param string $name the name of the query part to be set
* @param string $part query part string
* @throws Doctrine_Hydrate_Exception if trying to set unknown query part
* @return Doctrine_Hydrate this object
*/
public function setQueryPart($name, $part)
{
if ( ! isset($this->parts[$name])) {
throw new Doctrine_Hydrate_Exception('Unknown query part ' . $name);
}
if ($name !== 'limit' && $name !== 'offset') {
if (is_array($part)) {
$this->parts[$name] = $part;
} else {
$this->parts[$name] = array($part);
}
} else {
$this->parts[$name] = $part;
}
return $this;
}
/**
* addQueryPart
* adds a query part in the query part array
*
* @param string $name the name of the query part to be added
* @param string $part query part string
* @throws Doctrine_Hydrate_Exception if trying to add unknown query part
* @return Doctrine_Hydrate this object
*/
public function addQueryPart($name, $part)
{
if ( ! isset($this->parts[$name])) {
throw new Doctrine_Hydrate_Exception('Unknown query part ' . $name);
}
if (is_array($part)) {
$this->parts[$name] = array_merge($this->parts[$name], $part);
} else {
$this->parts[$name][] = $part;
}
return $this;
}
/**
* removeQueryPart
* removes a query part from the query part array
*
* @param string $name the name of the query part to be removed
* @throws Doctrine_Hydrate_Exception if trying to remove unknown query part
* @return Doctrine_Hydrate this object
*/
public function removeQueryPart($name)
{
if ( ! isset($this->parts[$name])) {
throw new Doctrine_Hydrate_Exception('Unknown query part ' . $name);
}
if ($name == 'limit' || $name == 'offset') {
$this->parts[$name] = false;
} else {
$this->parts[$name] = array();
}
return $this;
}
/**
* setView
* sets a database view this query object uses
* this method should only be called internally by doctrine
*
* @param Doctrine_View $view database view
* @return void
*/
public function setView(Doctrine_View $view)
{
$this->_view = $view;
}
/**
* getView
* returns the view associated with this query object (if any)
*
* @return Doctrine_View the view associated with this query object
*/
public function getView()
{
return $this->_view;
}
/**
* limitSubqueryUsed
*
* @return boolean
*/
public function isLimitSubqueryUsed()
{
return $this->isLimitSubqueryUsed;
}
/**
* convertEnums
* convert enum parameters to their integer equivalents
*
* @return array converted parameter array
*/
public function convertEnums($params)
{
foreach ($this->_enumParams as $key => $values) {
if (isset($params[$key])) {
if ( ! empty($values)) {
$params[$key] = $values[0]->enumIndex($values[1], $params[$key]);
}
}
}
return $params;
}
/**
* applyInheritance
* applies column aggregation inheritance to DQL / SQL query
*
* @return string
*/
public function applyInheritance()
{
// get the inheritance maps
$array = array();
foreach ($this->_aliasMap as $componentAlias => $data) {
$tableAlias = $this->getTableAlias($componentAlias);
$array[$tableAlias][] = $data['table']->inheritanceMap;
}
// apply inheritance maps
$str = '';
$c = array();
$index = 0;
foreach ($array as $tableAlias => $maps) {
$a = array();
// don't use table aliases if the query isn't a select query
if ($this->type !== Doctrine_Query::SELECT) {
$tableAlias = '';
} else {
$tableAlias .= '.';
}
foreach ($maps as $map) {
$b = array();
foreach ($map as $field => $value) {
$identifier = $this->_conn->quoteIdentifier($tableAlias . $field);
if ($index > 0) {
$b[] = '(' . $identifier . ' = ' . $this->_conn->quote($value)
. ' OR ' . $identifier . ' IS NULL)';
} else {
$b[] = $identifier . ' = ' . $this->_conn->quote($value);
}
}
if ( ! empty($b)) {
$a[] = implode(' AND ', $b);
}
}
if ( ! empty($a)) {
$c[] = implode(' AND ', $a);
}
$index++;
}
$str .= implode(' AND ', $c);
return $str;
}
/**
* getTableAlias
* some database such as Oracle need the identifier lengths to be < ~30 chars
* hence Doctrine creates as short identifier aliases as possible
*
* this method is used for the creation of short table aliases, its also
* smart enough to check if an alias already exists for given component (componentAlias)
*
* @param string $componentAlias the alias for the query component to search table alias for
* @param string $tableName the table name from which the table alias is being created
* @return string the generated / fetched short alias
*/
public function getTableAlias($componentAlias, $tableName = null)
{
$alias = array_search($componentAlias, $this->_tableAliases);
if ($alias !== false) {
return $alias;
}
if ($tableName === null) {
throw new Doctrine_Hydrate_Exception("Couldn't get short alias for " . $componentAlias);
}
return $this->generateTableAlias($componentAlias, $tableName);
}
/**
* generateNewTableAlias
* generates a new alias from given table alias
*
* @param string $tableAlias table alias from which to generate the new alias from
* @return string the created table alias
*/
public function generateNewTableAlias($tableAlias)
{
if (isset($this->_tableAliases[$tableAlias])) {
// generate a new alias
$name = substr($tableAlias, 0, 1);
$i = ((int) substr($tableAlias, 1));
if ($i == 0) {
$i = 1;
}
$newIndex = ($this->_tableAliasSeeds[$name] + $i);
return $name . $newIndex;
}
return $tableAlias;
}
/**
* getTableAliasSeed
* returns the alias seed for given table alias
*
* @param string $tableAlias table alias that identifies the alias seed
* @return integer table alias seed
*/
public function getTableAliasSeed($tableAlias)
{
if ( ! isset($this->_tableAliasSeeds[$tableAlias])) {
return 0;
}
return $this->_tableAliasSeeds[$tableAlias];
}
/**
* hasAliasDeclaration
* whether or not this object has a declaration for given component alias
*
* @param string $componentAlias the component alias the retrieve the declaration from
* @return boolean
*/
public function hasAliasDeclaration($componentAlias)
{
return isset($this->_aliasMap[$componentAlias]);
}
/**
* getAliasDeclaration
* get the declaration for given component alias
*
* @param string $componentAlias the component alias the retrieve the declaration from
* @return array the alias declaration
*/
public function getAliasDeclaration($componentAlias)
{
if ( ! isset($this->_aliasMap[$componentAlias])) {
throw new Doctrine_Hydrate_Exception('Unknown component alias ' . $componentAlias);
}
return $this->_aliasMap[$componentAlias];
}
/**
* copyAliases
* copy aliases from another Hydrate object
*
* this method is needed by DQL subqueries which need the aliases
* of the parent query
*
* @param Doctrine_Hydrate $query the query object from which the
* aliases are copied from
* @return Doctrine_Hydrate this object
*/
public function copyAliases(Doctrine_Query_Abstract $query)
{
$this->_tableAliases = $query->_tableAliases;
$this->_aliasMap = $query->_aliasMap;
$this->_tableAliasSeeds = $query->_tableAliasSeeds;
return $this;
}
/**
* getRootAlias
* returns the alias of the the root component
*
* @return array
*/
public function getRootAlias()
{
if ( ! $this->_aliasMap) {
$this->getSql();
}
reset($this->_aliasMap);
return key($this->_aliasMap);
}
/**
* getRootDeclaration
* returns the root declaration
*
* @return array
*/
public function getRootDeclaration()
{
$map = reset($this->_aliasMap);
return $map;
}
/**
* getRoot
* returns the root component for this object
*
* @return Doctrine_Table root components table
*/
public function getRoot()
{
$map = reset($this->_aliasMap);
if ( ! isset($map['table'])) {
throw new Doctrine_Hydrate_Exception('Root component not initialized.');
}
return $map['table'];
}
/**
* generateTableAlias
* generates a table alias from given table name and associates
* it with given component alias
*
* @param string $componentAlias the component alias to be associated with generated table alias
* @param string $tableName the table name from which to generate the table alias
* @return string the generated table alias
*/
public function generateTableAlias($componentAlias, $tableName)
{
$char = strtolower(substr($tableName, 0, 1));
$alias = $char;
if ( ! isset($this->_tableAliasSeeds[$alias])) {
$this->_tableAliasSeeds[$alias] = 1;
}
while (isset($this->_tableAliases[$alias])) {
if ( ! isset($this->_tableAliasSeeds[$alias])) {
$this->_tableAliasSeeds[$alias] = 1;
}
$alias = $char . ++$this->_tableAliasSeeds[$alias];
}
$this->_tableAliases[$alias] = $componentAlias;
return $alias;
}
/**
* getComponentAlias
* get component alias associated with given table alias
*
* @param string $tableAlias the table alias that identifies the component alias
* @return string component alias
*/
public function getComponentAlias($tableAlias)
{
if ( ! isset($this->_tableAliases[$tableAlias])) {
throw new Doctrine_Hydrate_Exception('Unknown table alias ' . $tableAlias);
}
return $this->_tableAliases[$tableAlias];
}
/**
* _execute
*
* @param array $params
* @return void
*/
public function _execute($params)
{
$params = $this->_conn->convertBooleans($params);
if ( ! $this->_view) {
$query = $this->getQuery($params);
} else {
$query = $this->_view->getSelectSql();
}
$params = $this->convertEnums($params);
if ($this->isLimitSubqueryUsed() &&
$this->_conn->getAttribute(Doctrine::ATTR_DRIVER_NAME) !== 'mysql') {
$params = array_merge($params, $params);
}
if ($this->type !== self::SELECT) {
return $this->_conn->exec($query, $params);
}
//echo $query . "<br /><br />";
$stmt = $this->_conn->execute($query, $params);
return $stmt;
}
/**
* execute
* executes the query and populates the data set
*
* @param string $params
* @return Doctrine_Collection the root collection
*/
public function execute($params = array(), $hydrationMode = null)
{
$params = array_merge($this->_params['set'],
$this->_params['where'],
$this->_params['having'],
$params);
if ($this->_cache) {
$cacheDriver = $this->getCacheDriver();
$dql = $this->getDql();
// calculate hash for dql query
$hash = md5($dql . var_export($params, true));
$cached = ($this->_expireCache) ? false : $cacheDriver->fetch($hash);
if ($cached === false) {
// cache miss
$stmt = $this->_execute($params);
$array = $this->_hydrator->hydrateResultSet($stmt, $this->_aliasMap,
$this->_tableAliases, Doctrine::HYDRATE_ARRAY);
$cached = $this->getCachedForm($array);
$cacheDriver->save($hash, $cached, $this->_timeToLive);
} else {
$cached = unserialize($cached);
$this->_tableAliases = $cached[2];
$array = $cached[0];
$map = array();
foreach ($cached[1] as $k => $v) {
$e = explode('.', $v[0]);
if (count($e) === 1) {
$map[$k]['table'] = $this->_conn->getTable($e[0]);
} else {
$map[$k]['parent'] = $e[0];
$map[$k]['relation'] = $map[$e[0]]['table']->getRelation($e[1]);
$map[$k]['table'] = $map[$k]['relation']->getTable();
}
if (isset($v[1])) {
$map[$k]['agg'] = $v[1];
}
}
$this->_aliasMap = $map;
}
} else {
$stmt = $this->_execute($params);
if (is_integer($stmt)) {
return $stmt;
}
$array = $this->_hydrator->hydrateResultSet($stmt, $this->_aliasMap,
$this->_tableAliases, $hydrationMode);
}
return $array;
}
/**
* addSelect
* adds fields to the SELECT part of the query
*
* @param string $select Query SELECT part
* @return Doctrine_Query
*/
public function addSelect($select)
{
return $this->parseQueryPart('select', $select, true);
}
/**
* addTableAlias
* adds an alias for table and associates it with given component alias
*
* @param string $componentAlias the alias for the query component associated with given tableAlias
* @param string $tableAlias the table alias to be added
* @return Doctrine_Hydrate
*/
public function addTableAlias($tableAlias, $componentAlias)
{
$this->_tableAliases[$tableAlias] = $componentAlias;
return $this;
}
/**
* addFrom
* adds fields to the FROM part of the query
*
* @param string $from Query FROM part
* @return Doctrine_Query
*/
public function addFrom($from)
{
return $this->parseQueryPart('from', $from, true);
}
/**
* addWhere
* adds conditions to the WHERE part of the query
*
* @param string $where Query WHERE part
* @param mixed $params an array of parameters or a simple scalar
* @return Doctrine_Query
*/
public function addWhere($where, $params = array())
{
if (is_array($params)) {
$this->_params['where'] = array_merge($this->_params['where'], $params);
} else {
$this->_params['where'][] = $params;
}
return $this->parseQueryPart('where', $where, true);
}
/**
* whereIn
* adds IN condition to the query WHERE part
*
* @param string $expr the operand of the IN
* @param mixed $params an array of parameters or a simple scalar
* @param boolean $not whether or not to use NOT in front of IN
* @return Doctrine_Query
*/
public function whereIn($expr, $params = array(), $not = false)
{
$params = (array) $params;
$a = array();
foreach ($params as $k => $value) {
if ($value instanceof Doctrine_Expression) {
$value = $value->getSql();
unset($params[$k]);
} else {
$value = '?';
}
$a[] = $value;
}
$this->_params['where'] = array_merge($this->_params['where'], $params);
$where = $expr . ($not === true ? ' NOT ':'') . ' IN (' . implode(', ', $a) . ')';
return $this->parseQueryPart('where', $where, true);
}
/**
* whereNotIn
* adds NOT IN condition to the query WHERE part
*
* @param string $expr the operand of the NOT IN
* @param mixed $params an array of parameters or a simple scalar
* @return Doctrine_Query
*/
public function whereNotIn($expr, $params = array())
{
return $this->whereIn($expr, $params, true);
}
/**
* addGroupBy
* adds fields to the GROUP BY part of the query
*
* @param string $groupby Query GROUP BY part
* @return Doctrine_Query
*/
public function addGroupBy($groupby)
{
return $this->parseQueryPart('groupby', $groupby, true);
}
/**
* addHaving
* adds conditions to the HAVING part of the query
*
* @param string $having Query HAVING part
* @param mixed $params an array of parameters or a simple scalar
* @return Doctrine_Query
*/
public function addHaving($having, $params = array())
{
if (is_array($params)) {
$this->_params['having'] = array_merge($this->_params['having'], $params);
} else {
$this->_params['having'][] = $params;
}
return $this->parseQueryPart('having', $having, true);
}
/**
* addOrderBy
* adds fields to the ORDER BY part of the query
*
* @param string $orderby Query ORDER BY part
* @return Doctrine_Query
*/
public function addOrderBy($orderby)
{
return $this->parseQueryPart('orderby', $orderby, true);
}
/**
* select
* sets the SELECT part of the query
*
* @param string $select Query SELECT part
* @return Doctrine_Query
*/
public function select($select)
{
return $this->parseQueryPart('select', $select);
}
/**
* distinct
* Makes the query SELECT DISTINCT.
*
* @param bool $flag Whether or not the SELECT is DISTINCT (default true).
* @return Doctrine_Query
*/
public function distinct($flag = true)
{
$this->parts['distinct'] = (bool) $flag;
return $this;
}
/**
* forUpdate
* Makes the query SELECT FOR UPDATE.
*
* @param bool $flag Whether or not the SELECT is FOR UPDATE (default true).
* @return Doctrine_Query
*/
public function forUpdate($flag = true)
{
$this->parts[self::FOR_UPDATE] = (bool) $flag;
return $this;
}
/**
* delete
* sets the query type to DELETE
*
* @return Doctrine_Query
*/
public function delete()
{
$this->type = self::DELETE;
return $this;
}
/**
* update
* sets the UPDATE part of the query
*
* @param string $update Query UPDATE part
* @return Doctrine_Query
*/
public function update($update)
{
$this->type = self::UPDATE;
return $this->parseQueryPart('from', $update);
}
/**
* set
* sets the SET part of the query
*
* @param string $update Query UPDATE part
* @return Doctrine_Query
*/
public function set($key, $value, $params = null)
{
if (is_array($key)) {
foreach ($key as $k => $v) {
$this->set($k, '?', array($v));
}
return $this;
} else {
if ($params !== null) {
if (is_array($params)) {
$this->_params['set'] = array_merge($this->_params['set'], $params);
} else {
$this->_params['set'][] = $params;
}
}
return $this->parseQueryPart('set', $key . ' = ' . $value, true);
}
}
/**
* from
* sets the FROM part of the query
*
* @param string $from Query FROM part
* @return Doctrine_Query
*/
public function from($from)
{
return $this->parseQueryPart('from', $from);
}
/**
* innerJoin
* appends an INNER JOIN to the FROM part of the query
*
* @param string $join Query INNER JOIN
* @return Doctrine_Query
*/
public function innerJoin($join)
{
return $this->parseQueryPart('from', 'INNER JOIN ' . $join, true);
}
/**
* leftJoin
* appends a LEFT JOIN to the FROM part of the query
*
* @param string $join Query LEFT JOIN
* @return Doctrine_Query
*/
public function leftJoin($join)
{
return $this->parseQueryPart('from', 'LEFT JOIN ' . $join, true);
}
/**
* groupBy
* sets the GROUP BY part of the query
*
* @param string $groupby Query GROUP BY part
* @return Doctrine_Query
*/
public function groupBy($groupby)
{
return $this->parseQueryPart('groupby', $groupby);
}
/**
* where
* sets the WHERE part of the query
*
* @param string $join Query WHERE part
* @param mixed $params an array of parameters or a simple scalar
* @return Doctrine_Query
*/
public function where($where, $params = array())
{
$this->_params['where'] = array();
if (is_array($params)) {
$this->_params['where'] = $params;
} else {
$this->_params['where'][] = $params;
}
return $this->parseQueryPart('where', $where);
}
/**
* having
* sets the HAVING part of the query
*
* @param string $having Query HAVING part
* @param mixed $params an array of parameters or a simple scalar
* @return Doctrine_Query
*/
public function having($having, $params = array())
{
$this->_params['having'] = array();
if (is_array($params)) {
$this->_params['having'] = $params;
} else {
$this->_params['having'][] = $params;
}
return $this->parseQueryPart('having', $having);
}
/**
* orderBy
* sets the ORDER BY part of the query
*
* @param string $orderby Query ORDER BY part
* @return Doctrine_Query
*/
public function orderBy($orderby)
{
return $this->parseQueryPart('orderby', $orderby);
}
/**
* limit
* sets the Query query limit
*
* @param integer $limit limit to be used for limiting the query results
* @return Doctrine_Query
*/
public function limit($limit)
{
return $this->parseQueryPart('limit', $limit);
}
/**
* offset
* sets the Query query offset
*
* @param integer $offset offset to be used for paginating the query
* @return Doctrine_Query
*/
public function offset($offset)
{
return $this->parseQueryPart('offset', $offset);
}
/**
* getSql
* return the sql associated with this object
*
* @return string sql query string
*/
public function getSql()
{
return $this->getQuery();
}
/**
* clear
* resets all the variables
*
* @return void
*/
protected function clear()
{
$this->parts = array(
'select' => array(),
'distinct' => false,
'forUpdate' => false,
'from' => array(),
'set' => array(),
'join' => array(),
'where' => array(),
'groupby' => array(),
'having' => array(),
'orderby' => array(),
'limit' => false,
'offset' => false,
);
$this->inheritanceApplied = false;
}
public function setHydrationMode($hydrationMode)
{
$this->_hydrator->setHydrationMode($hydrationMode);
return $this;
}
public function getAliasMap()
{
return $this->_aliasMap;
}
/**
* Return the SQL parts.
*
* @return array The parts
*/
public function getParts()
{
return $this->parts;
}
/**
* getType
*
* returns the type of this query object
* by default the type is Doctrine_Hydrate::SELECT but if update() or delete()
* are being called the type is Doctrine_Hydrate::UPDATE and Doctrine_Hydrate::DELETE,
* respectively
*
* @see Doctrine_Hydrate::SELECT
* @see Doctrine_Hydrate::UPDATE
* @see Doctrine_Hydrate::DELETE
*
* @return integer return the query type
*/
public function getType()
{
return $this->type;
}
/**
* useCache
*
* @param Doctrine_Cache_Interface|bool $driver cache driver
* @param integer $timeToLive how long the cache entry is valid
* @return Doctrine_Hydrate this object
*/
public function useCache($driver = true, $timeToLive = null)
{
if($driver !== null && $driver !== true && ! ($driver instanceOf Doctrine_Cache_Interface)){
$msg = 'First argument should be instance of Doctrine_Cache_Interface or null.';
throw new Doctrine_Hydrate_Exception($msg);
}
$this->_cache = $driver;
return $this->setCacheLifeSpan($timeToLive);
}
/**
* expireCache
*
* @param boolean $expire whether or not to force cache expiration
* @return Doctrine_Hydrate this object
*/
public function expireCache($expire = true)
{
$this->_expireCache = true;
return $this;
}
/**
* setCacheLifeSpan
*
* @param integer $timeToLive how long the cache entry is valid
* @return Doctrine_Hydrate this object
*/
public function setCacheLifeSpan($timeToLive)
{
if ($timeToLive !== null) {
$timeToLive = (int) $timeToLive;
}
$this->_timeToLive = $timeToLive;
return $this;
}
/**
* getCacheDriver
* returns the cache driver associated with this object
*
* @return Doctrine_Cache_Interface|boolean|null cache driver
*/
public function getCacheDriver()
{
if ($this->_cache instanceof Doctrine_Cache_Interface) {
return $this->_cache;
} else {
return $this->_conn->getCacheDriver();
}
}
/**
* getConnection
*
* @return Doctrine_Connection
*/
public function getConnection()
{
return $this->_conn;
}
/**
* parseQueryPart
* parses given DQL query part
*
* @param string $queryPartName the name of the query part
* @param string $queryPart query part to be parsed
* @param boolean $append whether or not to append the query part to its stack
* if false is given, this method will overwrite
* the given query part stack with $queryPart
* @return Doctrine_Query this object
*/
abstract public function parseQueryPart($queryPartName, $queryPart, $append = false);
/**
*
*
*/
abstract public function getQuery($params = array());
}