141 lines
4.6 KiB
PHP
141 lines
4.6 KiB
PHP
<?php
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/*
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* $Id$
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* This software consists of voluntary contributions made by many individuals
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* and is licensed under the LGPL. For more information, see
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* <http://www.phpdoctrine.com>.
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*/
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/**
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* Doctrine_Connection_UnitOfWork
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*
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* @package Doctrine ORM
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* @url www.phpdoctrine.com
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* @license LGPL
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*/
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class Doctrine_Connection_UnitOfWork implements IteratorAggregate, Countable {
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/**
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* @var Doctrine_Connection $conn the connection object
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*/
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private $connection;
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/**
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* the constructor
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*
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* @param Doctrine_Connection $conn
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*/
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public function __construct(Doctrine_Connection $conn) {
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$this->conn = $conn;
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}
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/**
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* buildFlushTree
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* builds a flush tree that is used in transactions
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*
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* @return array
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*/
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public function buildFlushTree(array $tables) {
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$tree = array();
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foreach($tables as $k => $table) {
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$k = $k.$table;
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if( ! ($table instanceof Doctrine_Table))
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$table = $this->conn->getTable($table);
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$nm = $table->getComponentName();
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$index = array_search($nm,$tree);
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if($index === false) {
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$tree[] = $nm;
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$index = max(array_keys($tree));
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}
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$rels = $table->getRelations();
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// group relations
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foreach($rels as $key => $rel) {
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if($rel instanceof Doctrine_ForeignKey) {
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unset($rels[$key]);
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array_unshift($rels, $rel);
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}
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}
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foreach($rels as $rel) {
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$name = $rel->getTable()->getComponentName();
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$index2 = array_search($name,$tree);
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$type = $rel->getType();
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// skip self-referenced relations
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if($name === $nm)
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continue;
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if($rel instanceof Doctrine_ForeignKey) {
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if($index2 !== false) {
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if($index2 >= $index)
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continue;
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unset($tree[$index]);
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array_splice($tree,$index2,0,$nm);
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$index = $index2;
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} else {
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$tree[] = $name;
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}
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} elseif($rel instanceof Doctrine_LocalKey) {
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if($index2 !== false) {
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if($index2 <= $index)
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continue;
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unset($tree[$index2]);
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array_splice($tree,$index,0,$name);
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} else {
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array_unshift($tree,$name);
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$index++;
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}
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} elseif($rel instanceof Doctrine_Association) {
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$t = $rel->getAssociationFactory();
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$n = $t->getComponentName();
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if($index2 !== false)
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unset($tree[$index2]);
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array_splice($tree,$index, 0,$name);
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$index++;
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$index3 = array_search($n,$tree);
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if($index3 !== false) {
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if($index3 >= $index)
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continue;
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unset($tree[$index]);
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array_splice($tree,$index3,0,$n);
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$index = $index2;
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} else {
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$tree[] = $n;
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}
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}
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}
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}
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return array_values($tree);
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}
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public function getIterator() { }
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public function count() { }
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}
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