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doctrine2/lib/Doctrine/Configurable.php

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<?php
/*
* $Id$
*
* 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_Configurable
* the base for Doctrine_Table, Doctrine_Manager and Doctrine_Connection
*
*
* @package Doctrine
* @license http://www.opensource.org/licenses/lgpl-license.php LGPL
* @category Object Relational Mapping
* @link www.phpdoctrine.com
* @since 1.0
* @version $Revision$
* @author Konsta Vesterinen <kvesteri@cc.hut.fi>
*/
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abstract class Doctrine_Configurable
{
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/**
* @var array $attributes an array of containing all attributes
*/
private $attributes = array();
/**
* @var $parent the parents of this component
*/
private $parent;
/**
* setAttribute
* sets a given attribute
*
* <code>
* $manager->setAttribute(Doctrine::ATTR_PORTABILITY, Doctrine::PORTABILITY_ALL);
*
* // or
*
* $manager->setAttribute('portability', Doctrine::PORTABILITY_ALL);
* </code>
*
* @param mixed $attribute either a Doctrine::ATTR_* integer constant or a string
* corresponding to a constant
* @param mixed $value the value of the attribute
* @see Doctrine::ATTR_* constants
* @throws Doctrine_Exception if the value is invalid
* @return void
*/
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public function setAttribute($attribute,$value)
{
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switch ($attribute) {
case Doctrine::ATTR_BATCH_SIZE:
if ($value < 0) {
throw new Doctrine_Exception("Batch size should be greater than or equal to zero");
}
break;
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case Doctrine::ATTR_FETCHMODE:
if ($value < 0) {
throw new Doctrine_Exception("Unknown fetchmode. See Doctrine::FETCH_* constants.");
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}
break;
case Doctrine::ATTR_LISTENER:
$this->setEventListener($value);
break;
case Doctrine::ATTR_LOCKMODE:
if ($this instanceof Doctrine_Connection) {
if ($this->transaction->getState() != Doctrine_Transaction::STATE_SLEEP) {
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throw new Doctrine_Exception("Couldn't set lockmode. There are transactions open.");
}
} elseif ($this instanceof Doctrine_Manager) {
foreach ($this as $connection) {
if ($connection->transaction->getState() != Doctrine_Transaction::STATE_SLEEP) {
throw new Doctrine_Exception("Couldn't set lockmode. There are transactions open.");
}
}
} else {
throw new Doctrine_Exception("Lockmode attribute can only be set at the global or connection level.");
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}
break;
case Doctrine::ATTR_CREATE_TABLES:
$value = (bool) $value;
break;
case Doctrine::ATTR_ACCESSORS:
$accessors = array('none','get','set','both');
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// if ( ! in_array($value,$accessors)) {
// throw new Doctrine_Exception();
// }
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break;
case Doctrine::ATTR_COLL_LIMIT:
if ($value < 1) {
throw new Doctrine_Exception("Collection limit should be a value greater than or equal to 1.");
}
break;
case Doctrine::ATTR_COLL_KEY:
if ( ! ($this instanceof Doctrine_Table)) {
throw new Doctrine_Exception("This attribute can only be set at table level.");
}
if ( ! $this->hasColumn($value)) {
throw new Doctrine_Exception("Couldn't set collection key attribute. No such column '$value'");
}
break;
case Doctrine::ATTR_VLD:
case Doctrine::ATTR_AUTO_LENGTH_VLD:
case Doctrine::ATTR_AUTO_TYPE_VLD:
case Doctrine::ATTR_QUERY_LIMIT:
case Doctrine::ATTR_QUOTE_IDENTIFIER:
case Doctrine::ATTR_PORTABILITY:
case Doctrine::ATTR_DEFAULT_TABLE_TYPE:
case Doctrine::ATTR_ACCESSOR_PREFIX_GET:
case Doctrine::ATTR_ACCESSOR_PREFIX_SET:
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break;
case Doctrine::ATTR_SEQCOL_NAME:
if ( ! is_string($value)) {
throw new Doctrine_Exception('Sequence column name attribute only accepts string values');
}
break;
case Doctrine::ATTR_FIELD_CASE:
if ($value != 0 && $value != CASE_LOWER && $value != CASE_UPPER)
throw new Doctrine_Exception('Field case attribute should be either 0, CASE_LOWER or CASE_UPPER constant.');
break;
case Doctrine::ATTR_SEQNAME_FORMAT:
case Doctrine::ATTR_IDXNAME_FORMAT:
if ($this instanceof Doctrine_Table) {
throw new Doctrine_Exception('Sequence / index name format attributes cannot be set'
. 'at table level (only at connection or global level).');
}
break;
default:
throw new Doctrine_Exception("Unknown attribute.");
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};
$this->attributes[$attribute] = $value;
}
/**
* @param Doctrine_EventListener $listener
* @return void
*/
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public function setEventListener($listener)
{
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return $this->setListener($listener);
}
/**
* addListener
*
* @param Doctrine_Db_EventListener_Interface|Doctrine_Overloadable $listener
* @return Doctrine_Db
*/
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public function addListener($listener, $name = null)
{
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if ( ! ($this->attributes[Doctrine::ATTR_LISTENER] instanceof Doctrine_EventListener_Chain)) {
$this->attributes[Doctrine::ATTR_LISTENER] = new Doctrine_EventListener_Chain();
}
$this->attributes[Doctrine::ATTR_LISTENER]->add($listener, $name);
return $this;
}
/**
* getListener
*
* @return Doctrine_Db_EventListener_Interface|Doctrine_Overloadable
*/
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public function getListener()
{
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if ( ! isset($this->attributes[Doctrine::ATTR_LISTENER])) {
if (isset($this->parent)) {
return $this->parent->getListener();
}
return null;
}
return $this->attributes[Doctrine::ATTR_LISTENER];
}
/**
* setListener
*
* @param Doctrine_Db_EventListener_Interface|Doctrine_Overloadable $listener
* @return Doctrine_Db
*/
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public function setListener($listener)
{
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if ( ! ($listener instanceof Doctrine_EventListener_Interface)
&& ! ($listener instanceof Doctrine_Overloadable)
) {
throw new Doctrine_Exception("Couldn't set eventlistener. EventListeners should implement either Doctrine_EventListener_Interface or Doctrine_Overloadable");
}
$this->attributes[Doctrine::ATTR_LISTENER] = $listener;
return $this;
}
/**
* returns the value of an attribute
*
* @param integer $attribute
* @return mixed
*/
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public function getAttribute($attribute)
{
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$attribute = (int) $attribute;
if ($attribute < 0)
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throw new Doctrine_Exception('Unknown attribute.');
if ( ! isset($this->attributes[$attribute])) {
if (isset($this->parent)) {
return $this->parent->getAttribute($attribute);
}
return null;
}
return $this->attributes[$attribute];
}
/**
* getAttributes
* returns all attributes as an array
*
* @return array
*/
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public function getAttributes()
{
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return $this->attributes;
}
/**
* sets a parent for this configurable component
* the parent must be configurable component itself
*
* @param Doctrine_Configurable $component
* @return void
*/
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public function setParent(Doctrine_Configurable $component)
{
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$this->parent = $component;
}
/**
* getParent
* returns the parent of this component
*
* @return Doctrine_Configurable
*/
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public function getParent()
{
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return $this->parent;
}
}