Alpha\Model\ActiveRecord

Complexity

Total Complexity

289

Size/Duplication

Total Lines	2594
Duplicated Lines	0 %

Coupling/Cohesion

Components	1
Dependencies	17

Importance

Changes	5
Bugs	0	Features	0

86 Methods

Rating	Name	Duplication	Size	Complexity
A	__construct()	0	21	2
A	disconnect()	0	7	1
A	query()	0	13	1
B	load()	0	31	6
A	loadAllOldVersions()	0	13	1
B	loadByAttribute()	0	26	5
A	loadAll()	0	21	3
A	loadAllByAttribute()	0	21	3
B	loadAllByAttributes()	0	27	5
A	loadAllByDayUpdated()	0	21	3
A	loadAllFieldValuesByAttribute()	0	13	1
B	save()	0	25	4
B	saveAttribute()	0	32	6
A	saveHistory()	0	17	3
C	validate()	0	35	12
F	delete()	0	83	17
B	deleteAllByAttribute()	0	34	6
A	getVersion()	0	21	3
A	makeTable()	0	21	3
A	makeHistoryTable()	0	21	3
A	rebuildTable()	0	19	3
A	dropTable()	0	19	3
A	addProperty()	0	19	3
D	populateFromArray()	0	36	10
A	getMAX()	0	21	3
B	getCount()	0	25	5
A	getHistoryCount()	0	21	3
A	getID()	0	8	1
A	getOID()	0	11	2
A	getVersionNumber()	0	7	1
A	setEnumOptions()	0	19	3
C	get()	0	53	13
C	set()	0	42	11
C	getPropObject()	0	42	7
A	checkTableExists()	0	21	3
A	checkBOTableExists()	0	17	3
B	checkTableNeedsUpdate()	0	29	4
A	findMissingFields()	0	21	3
A	getTableName()	0	16	2
A	getCreatorId()	0	7	1
A	getUpdatorId()	0	7	1
A	getCreateTS()	0	7	1
A	getUpdateTS()	0	7	1
A	markTransient()	0	6	1
A	markPersistent()	0	6	1
A	markUnique()	0	19	3
A	getUniqueAttributes()	0	7	1
A	getIndexes()	0	13	1
B	createForeignIndex()	0	29	4
A	createUniqueIndex()	0	19	3
A	getDataLabels()	0	7	1
A	setDataLabels()	0	12	2
A	getDataLabel()	0	13	2
C	getBOClassNames()	0	50	12
A	getDefaultAttributes()	0	7	1
A	getTransientAttributes()	0	7	1
A	getPersistentAttributes()	0	23	3
A	setOID()	0	6	1
A	isTransient()	0	14	4
A	getLastQuery()	0	7	1
A	clear()	0	17	3
A	reload()	0	11	2
B	loadClassDef()	0	21	5
A	checkRecordExists()	0	21	3
A	isTableOverloaded()	0	13	1
B	begin()	0	23	4
B	commit()	0	23	4
B	rollback()	0	23	4
B	isInstalled()	0	25	4
A	isTagged()	0	8	4
A	getTaggedAttributes()	0	8	2
A	setVersion()	0	4	1
B	cast()	0	34	6
A	getFriendlyClassName()	0	6	1
A	hasAttribute()	0	10	2
A	addToCache()	0	15	2
A	removeFromCache()	0	15	2
C	loadFromCache()	0	48	9
A	setLastQuery()	0	5	1
A	__wakeup()	0	6	2
A	setMaintainHistory()	0	8	2
A	getMaintainHistory()	0	4	1
B	toArray()	0	24	4
A	checkDatabaseExists()	0	8	1
A	createDatabase()	0	7	1
A	dropDatabase()	0	7	1

<?php

namespace Alpha\Model;

use Alpha\Model\Type\Date;
use Alpha\Model\Type\Integer;
use Alpha\Model\Type\Timestamp;
use Alpha\Model\Type\TypeInterface;
use Alpha\Model\Type\Enum;
use Alpha\Model\Type\Relation;
use Alpha\Util\Config\ConfigProvider;
use Alpha\Util\Logging\Logger;
use Alpha\Util\Cache\CacheProviderFactory;
use Alpha\Util\Http\Session\SessionProviderFactory;
use Alpha\Exception\AlphaException;
use Alpha\Exception\FailedSaveException;
use Alpha\Exception\FailedDeleteException;
use Alpha\Exception\ValidationException;
use Alpha\Exception\RecordNotFoundException;
use Alpha\Exception\IllegalArguementException;
use Alpha\Exception\NotImplementedException;
use ReflectionClass;
use ReflectionProperty;

/**
 * Base active record class definition providing database storage via the configured provider.
 *
 * @since 1.0
 *
 * @author John Collins <dev@alphaframework.org>
 * @license http://www.opensource.org/licenses/bsd-license.php The BSD License
 * @copyright Copyright (c) 2017, John Collins (founder of Alpha Framework).
 * All rights reserved.
 *
 * <pre>
 * Redistribution and use in source and binary forms, with or
 * without modification, are permitted provided that the
 * following conditions are met:
 *
 * * Redistributions of source code must retain the above
 *   copyright notice, this list of conditions and the
 *   following disclaimer.
 * * Redistributions in binary form must reproduce the above
 *   copyright notice, this list of conditions and the
 *   following disclaimer in the documentation and/or other
 *   materials provided with the distribution.
 * * Neither the name of the Alpha Framework nor the names
 *   of its contributors may be used to endorse or promote
 *   products derived from this software without specific
 *   prior written permission.
 *
 * 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 HOLDER 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.
 * </pre>
 */
abstract class ActiveRecord
{
    /**
     * The object ID.
     *
     * @var int
     *
     * @since 1.0
     */
    protected $OID;

    /**
     * The last database query run by this object.  Useful for tracing an error.
     *
     * @var string
     *
     * @since 1.0
     */
    protected $lastQuery;

    /**
     * The version number of the object, used for locking mechanism.
     *
     * @var \Alpha\Model\Type\Integer
     *
     * @since 1.0
     */
    protected $version_num;

    /**
     * The timestamp of creation.
     *
     * @var \Alpha\Model\Type\Timestamp
     *
     * @since 1.0
     */
    protected $created_ts;

    /**
     * The OID of the person who created this BO.
     *
     * @var \Alpha\Model\Type\Integer
     *
     * @since 1.0
     */
    protected $created_by;

    /**
     * The timestamp of the last update.
     *
     * @var \Alpha\Model\Type\Timestamp
     *
     * @since 1.0
     */
    protected $updated_ts;

    /**
     * The OID of the person who last updated this BO.
     *
     * @var \Alpha\Model\Type\Integer
     *
     * @since 1.0
     */
    protected $updated_by;

    /**
     * An array of the names of all of the default attributes of a persistent BO defined in this class.
     *
     * @var array
     *
     * @since 1.0
     */
    protected $defaultAttributes = array('OID', 'lastQuery', 'version_num', 'dataLabels', 'created_ts', 'created_by', 'updated_ts', 'updated_by', 'defaultAttributes', 'transientAttributes', 'uniqueAttributes', 'TABLE_NAME', 'logger');

    /**
     * An array of the names of all of the transient attributes of a persistent BO which are not saved to the DB.
     *
     * @var array
     *
     * @since 1.0
     */
    protected $transientAttributes = array('lastQuery', 'dataLabels', 'defaultAttributes', 'transientAttributes', 'uniqueAttributes', 'TABLE_NAME', 'logger');

    /**
     * An array of the uniquely-constained attributes of this persistent BO.
     *
     * @var array
     *
     * @since 1.0
     */
    protected $uniqueAttributes = array();

    /**
     * An array of the data labels used for displaying class attributes.
     *
     * @var array
     *
     * @since 1.0
     */
    protected $dataLabels = array();

    /**
     * Trace logger.
     *
     * @var \Alpha\Util\Logging\Logger
     *
     * @since 1.0
     */
    private static $logger = null;

    /**
     * Determines if we will maintain a _history table for this record (default is false).
     *
     * @var bool
     *
     * @since 1.2
     */
    private $maintainHistory = false;

    /**
     * The constructor which sets up some housekeeping attributes.
     *
     * @since 1.0
     */
    public function __construct()
    {
        self::$logger = new Logger('ActiveRecord');
        self::$logger->debug('>>__construct()');

        $config = ConfigProvider::getInstance();
        $sessionProvider = $config->get('session.provider.name');
        $session = SessionProviderFactory::getInstance($sessionProvider);

        set_exception_handler('Alpha\Util\ErrorHandlers::catchException');
        set_error_handler('Alpha\Util\ErrorHandlers::catchError', $config->get('php.error.log.level'));

        $this->version_num = new Integer(0);
        $this->created_ts = new Timestamp(date('Y-m-d H:i:s'));
        $person_ID = ($session->get('currentUser') != null ? $session->get('currentUser')->getOID() : 0);
        $this->created_by = new Integer($person_ID);
        $this->updated_ts = new Timestamp(date('Y-m-d H:i:s'));
        $this->updated_by = new Integer($person_ID);

        self::$logger->debug('<<__construct');
    }

    /**
     * Disconnects the current database connection if one exists.
     *
     * @since 1.0
     */
    public static function disconnect()
    {
        $config = ConfigProvider::getInstance();

        $provider = ActiveRecordProviderFactory::getInstance($config->get('db.provider.name'));
        $provider->disconnect();
    }

    /**
     * Returns a 2d array, where each element in the array is another array representing a database row.
     *
     * @param string $sqlQuery
     *
     * @return array
     *
     * @since 1.1
     *
     * @throws \Alpha\Exception\CustomQueryException
     */
    public function query($sqlQuery)
    {
        self::$logger->debug('>>query(sqlQuery=['.$sqlQuery.'])');

        $config = ConfigProvider::getInstance();

        $provider = ActiveRecordProviderFactory::getInstance($config->get('db.provider.name'), $this);
        $result = $provider->query($sqlQuery);

        self::$logger->debug('<<query ['.print_r($result, true).']');

        return $result;
    }

    /**
     * Populates the child object with the properties retrived from the database for the object $OID.
     *
     * @param int $OID     The object ID of the business object to load.
     * @param int $version Optionaly, provide the version to load that version from the [tablename]_history table.
     *
     * @since 1.0
     *
     * @throws \Alpha\Exception\RecordNotFoundException
     */
    public function load($OID, $version = 0)
    {
        self::$logger->debug('>>load(OID=['.$OID.'], version=['.$version.'])');

        if (method_exists($this, 'before_load_callback')) {
            $this->{'before_load_callback'}();
        }

        $config = ConfigProvider::getInstance();

        $this->OID = $OID;

        if ($config->get('cache.provider.name') != '' && $this->loadFromCache()) {

This if statement is empty and can be removed.

            // BO was found in cache
        } else {
            $provider = ActiveRecordProviderFactory::getInstance($config->get('db.provider.name'), $this);
            $provider->load($OID, $version);

            if ($config->get('cache.provider.name') != '') {
                $this->addToCache();
            }
        }

        $this->setEnumOptions();

        if (method_exists($this, 'after_load_callback')) {
            $this->{'after_load_callback'}();
        }

        self::$logger->debug('<<load');
    }

    /**
     * Load all old versions (if any) of this record from the [tablename]_history table.
     *
     * @param int $OID The object ID of the record to load.
     *
     * @return array An array containing objects of this type of record object, order by version.
     *
     * @since 2.0
     *
     * @throws \Alpha\Exception\RecordFoundException
     */
    public function loadAllOldVersions($OID)
    {
        self::$logger->debug('>>loadAllOldVersions(OID=['.$OID.'])');

        $config = ConfigProvider::getInstance();

        $provider = ActiveRecordProviderFactory::getInstance($config->get('db.provider.name'), $this);
        $objects = $provider->loadAllOldVersions($OID);

        self::$logger->debug('<<loadAllOldVersions['.count($objects).']');

        return $objects;
    }

    /**
     * Populates the child object from the database table by the given attribute value.
     *
     * @param string $attribute       The name of the attribute to load the object by.
     * @param string $value           The value of the attribute to load the object by.
     * @param bool   $ignoreClassType Default is false, set to true if you want to load from overloaded tables and ignore the class type
     * @param array  $loadAttributes  The attributes to load from the database to this object (leave blank to load all attributes)
     *
     * @since 1.0
     *
     * @throws \Alpha\Exception\RecordNotFoundException
     */
    public function loadByAttribute($attribute, $value, $ignoreClassType = false, $loadAttributes = array())
    {
        self::$logger->debug('>>loadByAttribute(attribute=['.$attribute.'], value=['.$value.'], ignoreClassType=['.$ignoreClassType.'], 
            loadAttributes=['.var_export($loadAttributes, true).'])');

        if (method_exists($this, 'before_loadByAttribute_callback')) {
            $this->{'before_loadByAttribute_callback'}();
        }

        $config = ConfigProvider::getInstance();

        $provider = ActiveRecordProviderFactory::getInstance($config->get('db.provider.name'), $this);
        $provider->loadByAttribute($attribute, $value, $ignoreClassType, $loadAttributes);

        $this->setEnumOptions();

        if ($config->get('cache.provider.name') != '' && count($loadAttributes) == 0) { // we will only cache fully-populated BOs
            $this->addToCache();
        }

        if (method_exists($this, 'after_loadByAttribute_callback')) {
            $this->{'after_loadByAttribute_callback'}();
        }

        self::$logger->debug('<<loadByAttribute');
    }

    /**
     * Loads all of the objects of this class into an array which is returned.
     *
     * @param int    $start           The start of the SQL LIMIT clause, useful for pagination.
     * @param int    $limit           The amount (limit) of objects to load, useful for pagination.
     * @param string $orderBy         The name of the field to sort the objects by.
     * @param string $order           The order to sort the objects by.
     * @param bool   $ignoreClassType Default is false, set to true if you want to load from overloaded tables and ignore the class type
     *
     * @return array An array containing objects of this type of business object.
     *
     * @since 1.0
     *
     * @throws \Alpha\Exception\RecordNotFoundException
     */
    public function loadAll($start = 0, $limit = 0, $orderBy = 'OID', $order = 'ASC', $ignoreClassType = false)
    {
        self::$logger->debug('>>loadAll(start=['.$start.'], limit=['.$limit.'], orderBy=['.$orderBy.'], order=['.$order.'], ignoreClassType=['.$ignoreClassType.']');

        if (method_exists($this, 'before_loadAll_callback')) {
            $this->{'before_loadAll_callback'}();
        }

        $config = ConfigProvider::getInstance();

        $provider = ActiveRecordProviderFactory::getInstance($config->get('db.provider.name'), $this);
        $objects = $provider->loadAll($start, $limit, $orderBy, $order, $ignoreClassType);

        if (method_exists($this, 'after_loadAll_callback')) {
            $this->{'after_loadAll_callback'}();
        }

        self::$logger->debug('<<loadAll ['.count($objects).']');

        return $objects;
    }

    /**
     * Loads all of the objects of this class by the specified attribute into an array which is returned.
     *
     * @param string $attribute       The attribute to load the objects by.
     * @param string $value           The value of the attribute to load the objects by.
     * @param int    $start           The start of the SQL LIMIT clause, useful for pagination.
     * @param int    $limit           The amount (limit) of objects to load, useful for pagination.
     * @param string $orderBy         The name of the field to sort the objects by.
     * @param string $order           The order to sort the objects by.
     * @param bool   $ignoreClassType Default is false, set to true if you want to load from overloaded tables and ignore the class type.
     * @param array  $constructorArgs An optional array of contructor arguements to pass to the BOs that will be generated and returned.  Supports a maximum of 5 arguements.
     *
     * @return array An array containing objects of this type of business object.
     *
     * @since 1.0
     *
     * @throws \Alpha\Exception\RecordNotFoundException
     * @throws \Alpha\Exception\IllegalArguementException
     */
    public function loadAllByAttribute($attribute, $value, $start = 0, $limit = 0, $orderBy = 'OID', $order = 'ASC', $ignoreClassType = false, $constructorArgs = array())
    {
        self::$logger->debug('>>loadAllByAttribute(attribute=['.$attribute.'], value=['.$value.'], start=['.$start.'], limit=['.$limit.'], orderBy=['.$orderBy.'], order=['.$order.'], ignoreClassType=['.$ignoreClassType.'], constructorArgs=['.print_r($constructorArgs, true).']');

        if (method_exists($this, 'before_loadAllByAttribute_callback')) {
            $this->{'before_loadAllByAttribute_callback'}();
        }

        $config = ConfigProvider::getInstance();

        $provider = ActiveRecordProviderFactory::getInstance($config->get('db.provider.name'), $this);
        $objects = $provider->loadAllByAttribute($attribute, $value, $start, $limit, $orderBy, $order, $ignoreClassType);

        if (method_exists($this, 'after_loadAllByAttribute_callback')) {
            $this->{'after_loadAllByAttribute_callback'}();
        }

        self::$logger->debug('<<loadAllByAttribute ['.count($objects).']');

        return $objects;
    }

    /**
     * Loads all of the objects of this class by the specified attributes into an array which is returned.
     *
     * @param array  $attributes      The attributes to load the objects by.
     * @param array  $values          The values of the attributes to load the objects by.
     * @param int    $start           The start of the SQL LIMIT clause, useful for pagination.
     * @param int    $limit           The amount (limit) of objects to load, useful for pagination.
     * @param string $orderBy         The name of the field to sort the objects by.
     * @param string $order           The order to sort the objects by.
     * @param bool   $ignoreClassType Default is false, set to true if you want to load from overloaded tables and ignore the class type
     *
     * @return array An array containing objects of this type of business object.
     *
     * @since 1.0
     *
     * @throws \Alpha\Exception\RecordNotFoundException
     * @throws \Alpha\Exception\IllegalArguementException
     */
    public function loadAllByAttributes($attributes = array(), $values = array(), $start = 0, $limit = 0, $orderBy = 'OID', $order = 'ASC', $ignoreClassType = false)
    {
        self::$logger->debug('>>loadAllByAttributes(attributes=['.var_export($attributes, true).'], values=['.var_export($values, true).'], start=['.
            $start.'], limit=['.$limit.'], orderBy=['.$orderBy.'], order=['.$order.'], ignoreClassType=['.$ignoreClassType.']');

        if (method_exists($this, 'before_loadAllByAttributes_callback')) {
            $this->{'before_loadAllByAttributes_callback'}();
        }

        $config = ConfigProvider::getInstance();

        if (!is_array($attributes) || !is_array($values)) {
            throw new IllegalArguementException('Illegal arrays attributes=['.var_export($attributes, true).'] and values=['.var_export($values, true).
                '] provided to loadAllByAttributes');
        }

        $provider = ActiveRecordProviderFactory::getInstance($config->get('db.provider.name'), $this);
        $objects = $provider->loadAllByAttributes($attributes, $values, $start, $limit, $orderBy, $order, $ignoreClassType);

        if (method_exists($this, 'after_loadAllByAttributes_callback')) {
            $this->{'after_loadAllByAttributes_callback'}();
        }

        self::$logger->debug('<<loadAllByAttributes ['.count($objects).']');

        return $objects;
    }

    /**
     * Loads all of the objects of this class that where updated (updated_ts value) on the date indicated.
     *
     * @param string $date            The date for which to load the objects updated on, in the format 'YYYY-MM-DD'.
     * @param int    $start           The start of the SQL LIMIT clause, useful for pagination.
     * @param int    $limit           The amount (limit) of objects to load, useful for pagination.
     * @param string $orderBy         The name of the field to sort the objects by.
     * @param string $order           The order to sort the objects by.
     * @param bool   $ignoreClassType Default is false, set to true if you want to load from overloaded tables and ignore the class type
     *
     * @return array An array containing objects of this type of business object.
     *
     * @since 1.0
     *
     * @throws \Alpha\Exception\RecordNotFoundException
     */
    public function loadAllByDayUpdated($date, $start = 0, $limit = 0, $orderBy = 'OID', $order = 'ASC', $ignoreClassType = false)
    {
        self::$logger->debug('>>loadAllByDayUpdated(date=['.$date.'], start=['.$start.'], limit=['.$limit.'], orderBy=['.$orderBy.'], order=['.$order.'], ignoreClassType=['.$ignoreClassType.']');

        if (method_exists($this, 'before_loadAllByDayUpdated_callback')) {
            $this->{'before_loadAllByDayUpdated_callback'}();
        }

        $config = ConfigProvider::getInstance();

        $provider = ActiveRecordProviderFactory::getInstance($config->get('db.provider.name'), $this);
        $objects = $provider->loadAllByDayUpdated($date, $start, $limit, $orderBy, $order, $ignoreClassType);

        if (method_exists($this, 'after_loadAllByDayUpdated_callback')) {
            $this->{'after_loadAllByDayUpdated_callback'}();
        }

        self::$logger->debug('<<loadAllByDayUpdated ['.count($objects).']');

        return $objects;
    }

    /**
     * Loads all of the specified attribute values of this class by the specified attribute into an
     * array which is returned.
     *
     * @param string $attribute       The attribute name to load the field values by.
     * @param string $value           The value of the attribute to load the field values by.
     * @param string $returnAttribute The name of the attribute to return.
     * @param string $order           The order to sort the BOs by.
     * @param bool   $ignoreClassType Default is false, set to true if you want to load from overloaded tables and ignore the class type.
     *
     * @return array An array of field values.
     *
     * @since 1.0
     *
     * @throws \Alpha\Exception\RecordNotFoundException
     */
    public function loadAllFieldValuesByAttribute($attribute, $value, $returnAttribute, $order = 'ASC', $ignoreClassType = false)
    {
        self::$logger->debug('>>loadAllFieldValuesByAttribute(attribute=['.$attribute.'], value=['.$value.'], returnAttribute=['.$returnAttribute.'], order=['.$order.'], ignoreClassType=['.$ignoreClassType.']');

        $config = ConfigProvider::getInstance();

        $provider = ActiveRecordProviderFactory::getInstance($config->get('db.provider.name'), $this);
        $values = $provider->loadAllFieldValuesByAttribute($attribute, $value, $returnAttribute, $order, $ignoreClassType);

        self::$logger->debug('<<loadAllFieldValuesByAttribute ['.count($values).']');

        return $values;
    }

    /**
     * Saves the object.  If $this->OID is empty or null it will INSERT, otherwise UPDATE.
     *
     * @since 1.0
     *
     * @throws \Alpha\Exception\FailedSaveException
     * @throws \Alpha\Exception\LockingException
     * @throws \Alpha\Exception\ValidationException
     */
    public function save()
    {
        self::$logger->debug('>>save()');

        if (method_exists($this, 'before_save_callback')) {
            $this->{'before_save_callback'}();
        }

        $config = ConfigProvider::getInstance();

        // firstly we will validate the object before we try to save it
        $this->validate();

        $provider = ActiveRecordProviderFactory::getInstance($config->get('db.provider.name'), $this);
        $provider->save();

        if ($config->get('cache.provider.name') != '') {
            $this->removeFromCache();
            $this->addToCache();
        }

        if (method_exists($this, 'after_save_callback')) {
            $this->{'after_save_callback'}();
        }
    }

    /**
     * Saves the field specified with the value supplied.  Only works for persistent BOs.  Note that no Alpha type
     * validation is performed with this method!
     *
     * @param string $attribute The name of the attribute to save.
     * @param mixed  $value     The value of the attribute to save.
     *
     * @since 1.0
     *
     * @throws \Alpha\Exception\IllegalArguementException
     * @throws \Alpha\Exception\FailedSaveException
     */
    public function saveAttribute($attribute, $value)
    {
        self::$logger->debug('>>saveAttribute(attribute=['.$attribute.'], value=['.$value.'])');

        if (method_exists($this, 'before_saveAttribute_callback')) {
            $this->{'before_saveAttribute_callback'}();
        }

        $config = ConfigProvider::getInstance();

        if (!isset($this->$attribute)) {
            throw new IllegalArguementException('Could not perform save, as the attribute ['.$attribute.'] is not present on the class['.get_class($this).']');
        }

        if ($this->isTransient()) {
            throw new FailedSaveException('Cannot perform saveAttribute method on transient BO!');
        }

        $provider = ActiveRecordProviderFactory::getInstance($config->get('db.provider.name'), $this);
        $provider->saveAttribute($attribute, $value);

        if ($config->get('cache.provider.name') != '') {
            $this->removeFromCache();
            $this->addToCache();
        }

        if (method_exists($this, 'after_saveAttribute_callback')) {
            $this->{'after_saveAttribute_callback'}();
        }

        self::$logger->debug('<<saveAttribute');
    }

    /**
     * Saves the history of the object in the [tablename]_history table. It will always perform an insert.
     *
     * @since 1.2
     *
     * @throws \Alpha\Exception\FailedSaveException
     */
    public function saveHistory()
    {
        self::$logger->debug('>>saveHistory()');

        if (method_exists($this, 'before_saveHistory_callback')) {
            $this->{'before_saveHistory_callback'}();
        }

        $config = ConfigProvider::getInstance();

        $provider = ActiveRecordProviderFactory::getInstance($config->get('db.provider.name'), $this);
        $provider->saveHistory();

        if (method_exists($this, 'after_saveHistory_callback')) {
            $this->{'after_saveHistory_callback'}();
        }
    }

    /**
     * Validates the object to be saved.
     *
     * @since 1.0
     *
     * @throws \Alpha\Exception\ValidationException
     */
    protected function validate()
    {
        self::$logger->debug('>>validate()');

        if (method_exists($this, 'before_validate_callback')) {
            $this->{'before_validate_callback'}();
        }

        // get the class attributes
        $reflection = new ReflectionClass(get_class($this));
        $properties = $reflection->getProperties();

        foreach ($properties as $propObj) {
            $propName = $propObj->name;
            if (!in_array($propName, $this->defaultAttributes) && !in_array($propName, $this->transientAttributes)) {
                $propClass = new ReflectionClass($this->getPropObject($propName));
                $propClass = $propClass->getShortname();
                if (mb_strtoupper($propClass) != 'ENUM' &&
                mb_strtoupper($propClass) != 'DENUM' &&
                mb_strtoupper($propClass) != 'DENUMITEM' &&
                mb_strtoupper($propClass) != 'BOOLEAN') {
                    if ($this->getPropObject($propName) != false && !preg_match($this->getPropObject($propName)->getRule(), $this->getPropObject($propName)->getValue())) {

It seems like you code against a concrete implementation and not the interface Alpha\Model\Type\TypeInterface as the method getRule() does only exist in the following implementations of said interface: Alpha\Model\Type\Date, Alpha\Model\Type\Double, Alpha\Model\Type\Integer, Alpha\Model\Type\Relation, Alpha\Model\Type\Sequence, Alpha\Model\Type\SmallText, Alpha\Model\Type\Text, Alpha\Model\Type\Timestamp.

                        self::$logger->debug('<<validate');
                        throw new ValidationException('Failed to save, validation error is: '.$this->getPropObject($propName)->getHelper());
                    }
                }
            }
        }

        if (method_exists($this, 'after_validate_callback')) {
            $this->{'after_validate_callback'}();
        }

        self::$logger->debug('<<validate');
    }

    /**
     * Deletes the current object from the database.
     *
     * @since 1.0
     *
     * @throws \Alpha\Exception\FailedDeleteException
     */
    public function delete()
    {
        self::$logger->debug('>>delete()');

        if (method_exists($this, 'before_delete_callback')) {
            $this->{'before_delete_callback'}();
        }

        $config = ConfigProvider::getInstance();

        // get the class attributes
        $reflection = new ReflectionClass(get_class($this));
        $properties = $reflection->getProperties();

        // check for any relations on this object, then remove them to prevent orphaned data
        foreach ($properties as $propObj) {
            $propName = $propObj->name;

            if (!$propObj->isPrivate() && isset($this->$propName) && $this->$propName instanceof Relation) {
                $prop = $this->getPropObject($propName);

                // Handle MANY-TO-MANY rels
                if ($prop->getRelationType() == 'MANY-TO-MANY') {
                    self::$logger->debug('Deleting MANY-TO-MANY lookup objects...');

                    try {
                        // check to see if the rel is on this class
                        $side = $prop->getSide(get_class($this));
                    } catch (IllegalArguementException $iae) {
                        $side = $prop->getSide(get_parent_class($this));
                    }

                    self::$logger->debug('Side is ['.$side.']'.$this->getOID());

                    $lookUp = $prop->getLookup();
                    self::$logger->debug('Lookup object['.var_export($lookUp, true).']');

                    // delete all of the old RelationLookup objects for this rel
                    if ($side == 'left') {
                        $lookUp->deleteAllByAttribute('leftID', $this->getOID());
                    } else {
                        $lookUp->deleteAllByAttribute('rightID', $this->getOID());
                    }
                    self::$logger->debug('...done deleting!');
                }

                // should set related field values to null (MySQL is doing this for us as-is)
                if ($prop->getRelationType() == 'ONE-TO-MANY' && !$prop->getRelatedClass() == 'Alpha\Model\Tag') {
                    $relatedObjects = $prop->getRelatedObjects();

                    foreach ($relatedObjects as $object) {
                        $object->set($prop->getRelatedClassField(), null);
                        $object->save();
                    }
                }

                // in the case of tags, we will always remove the related tags once the BO is deleted
                if ($prop->getRelationType() == 'ONE-TO-MANY' && $prop->getRelatedClass() == 'Alpha\Model\Tag') {
                    // just making sure that the Relation is set to current OID as its transient
                    $prop->setValue($this->getOID());
                    $relatedObjects = $prop->getRelatedObjects();

                    foreach ($relatedObjects as $object) {
                        $object->delete();
                    }
                }
            }
        }

        $provider = ActiveRecordProviderFactory::getInstance($config->get('db.provider.name'), $this);
        $provider->delete();

        if ($config->get('cache.provider.name') != '') {
            $this->removeFromCache();
        }

        if (method_exists($this, 'after_delete_callback')) {
            $this->{'after_delete_callback'}();
        }

        $this->clear();
        self::$logger->debug('<<delete');
    }

    /**
     * Delete all object instances from the database by the specified attribute matching the value provided.
     *
     * @param string $attribute The name of the field to delete the objects by.
     * @param mixed  $value     The value of the field to delete the objects by.
     *
     * @return int The number of rows deleted.
     *
     * @since 1.0
     *
     * @throws \Alpha\Exception\FailedDeleteException
     */
    public function deleteAllByAttribute($attribute, $value)
    {
        self::$logger->debug('>>deleteAllByAttribute(attribute=['.$attribute.'], value=['.$value.'])');

        if (method_exists($this, 'before_deleteAllByAttribute_callback')) {
            $this->{'before_deleteAllByAttribute_callback'}();
        }

        try {
            $doomedObjects = $this->loadAllByAttribute($attribute, $value);
            $deletedRowCount = 0;

            foreach ($doomedObjects as $object) {
                $object->delete();
                ++$deletedRowCount;
            }
        } catch (RecordNotFoundException $bonf) {
            // nothing found to delete
            self::$logger->warn($bonf->getMessage());

            return 0;
        } catch (AlphaException $e) {
            self::$logger->debug('<<deleteAllByAttribute [0]');
            throw new FailedDeleteException('Failed to delete objects, error is ['.$e->getMessage().']');
        }

        if (method_exists($this, 'after_deleteAllByAttribute_callback')) {
            $this->{'after_deleteAllByAttribute_callback'}();
        }

        self::$logger->debug('<<deleteAllByAttribute ['.$deletedRowCount.']');

        return $deletedRowCount;
    }

    /**
     * Gets the version_num of the object from the database (returns 0 if the BO is not saved yet).
     *
     * @return int
     *
     * @since 1.0
     *
     * @throws \Alpha\Exception\RecordNotFoundException
     */
    public function getVersion()
    {
        self::$logger->debug('>>getVersion()');

        if (method_exists($this, 'before_getVersion_callback')) {
            $this->{'before_getVersion_callback'}();
        }

        $config = ConfigProvider::getInstance();

        $provider = ActiveRecordProviderFactory::getInstance($config->get('db.provider.name'), $this);
        $ver = $provider->getVersion();

        if (method_exists($this, 'after_getVersion_callback')) {
            $this->{'after_getVersion_callback'}();
        }

        self::$logger->debug('<<getVersion ['.$ver.']');

        return $ver;
    }

    /**
     * Builds a new database table for the BO class.
     *
     * @since 1.0
     *
     * @throws \Alpha\Exception\AlphaException
     */
    public function makeTable()
    {
        self::$logger->debug('>>makeTable()');

        if (method_exists($this, 'before_makeTable_callback')) {
            $this->{'before_makeTable_callback'}();
        }

        $config = ConfigProvider::getInstance();

        $provider = ActiveRecordProviderFactory::getInstance($config->get('db.provider.name'), $this);
        $provider->makeTable();

        if (method_exists($this, 'after_makeTable_callback')) {
            $this->{'after_makeTable_callback'}();
        }

        self::$logger->info('Successfully created the table ['.$this->getTableName().'] for the class ['.get_class($this).']');

        self::$logger->debug('<<makeTable');
    }

    /**
     * Builds a new database table for the BO class to story it's history of changes.
     *
     * @since 1.2
     *
     * @throws \Alpha\Exception\AlphaException
     */
    public function makeHistoryTable()
    {
        self::$logger->debug('>>makeHistoryTable()');

        if (method_exists($this, 'before_makeHistoryTable_callback')) {
            $this->{'before_makeHistoryTable_callback'}();
        }

        $config = ConfigProvider::getInstance();

        $provider = ActiveRecordProviderFactory::getInstance($config->get('db.provider.name'), $this);
        $provider->makeHistoryTable();

        if (method_exists($this, 'after_makeHistoryTable_callback')) {
            $this->{'after_makeHistoryTable_callback'}();
        }

        self::$logger->info('Successfully created the table ['.$this->getTableName().'_history] for the class ['.get_class($this).']');

        self::$logger->debug('<<makeHistoryTable');
    }

    /**
     * Re-builds the table if the model requirements have changed.  All data is lost!
     *
     * @since 1.0
     *
     * @throws \Alpha\Exception\AlphaException
     */
    public function rebuildTable()
    {
        self::$logger->debug('>>rebuildTable()');

        if (method_exists($this, 'before_rebuildTable_callback')) {
            $this->{'before_rebuildTable_callback'}();
        }

        $config = ConfigProvider::getInstance();

        $provider = ActiveRecordProviderFactory::getInstance($config->get('db.provider.name'), $this);
        $provider->rebuildTable();

        if (method_exists($this, 'after_rebuildTable_callback')) {
            $this->{'after_rebuildTable_callback'}();
        }

        self::$logger->debug('<<rebuildTable');
    }

    /**
     * Drops the table if the model requirements have changed.  All data is lost!
     *
     * @since 1.0
     *
     * @param string $tableName Optional table name, leave blank for the defined table for this class to be dropped
     *
     * @throws \Alpha\Exception\AlphaException
     */
    public function dropTable($tableName = null)
    {
        self::$logger->debug('>>dropTable()');

        if (method_exists($this, 'before_dropTable_callback')) {
            $this->{'before_dropTable_callback'}();
        }

        $config = ConfigProvider::getInstance();

        $provider = ActiveRecordProviderFactory::getInstance($config->get('db.provider.name'), $this);
        $provider->dropTable($tableName);

        if (method_exists($this, 'after_dropTable_callback')) {
            $this->{'after_dropTable_callback'}();
        }

        self::$logger->debug('<<dropTable');
    }

    /**
     * Adds in a new class property without loosing existing data (does an ALTER TABLE query on the
     * database).
     *
     * @param string $propName The name of the new field to add to the database table.
     *
     * @since 1.0
     *
     * @throws \Alpha\Exception\AlphaException
     */
    public function addProperty($propName)
    {
        self::$logger->debug('>>addProperty(propName=['.$propName.'])');

        $config = ConfigProvider::getInstance();

        if (method_exists($this, 'before_addProperty_callback')) {
            $this->{'before_addProperty_callback'}();
        }

        $provider = ActiveRecordProviderFactory::getInstance($config->get('db.provider.name'), $this);
        $provider->addProperty($propName);

        if (method_exists($this, 'after_addProperty_callback')) {
            $this->{'after_addProperty_callback'}();
        }

        self::$logger->debug('<<addProperty');
    }

    /**
     * Populates the current business object from the provided hash array.
     *
     * @param array $hashArray
     *
     * @since 1.2.1
     */
    public function populateFromArray($hashArray)
    {
        self::$logger->debug('>>populateFromArray(hashArray=['.print_r($hashArray, true).'])');

        // get the class attributes
        $reflection = new ReflectionClass(get_class($this));
        $properties = $reflection->getProperties();

        foreach ($properties as $propObj) {
            $propName = $propObj->name;

            if (isset($hashArray[$propName])) {
                if ($this->getPropObject($propName) instanceof Date || $this->getPropObject($propName) instanceof Timestamp) {
                    $this->getPropObject($propName)->populateFromString($hashArray[$propName]);
                } elseif ($this->getPropObject($propName) instanceof TypeInterface) {
                    $this->getPropObject($propName)->setValue($hashArray[$propName]);
                }

                if ($propName == 'version_num' && isset($hashArray['version_num'])) {
                    $this->version_num->setValue($hashArray['version_num']);
                }

                if ($this->getPropObject($propName) instanceof Relation) {
                    $rel = $this->getPropObject($propName);

                    if ($rel->getRelationType() == 'MANY-TO-MANY') {
                        $OIDs = explode(',', $hashArray[$propName]);
                        $rel->setRelatedOIDs($OIDs);
                        $this->$propName = $rel;
                    }
                }
            }
        }

        self::$logger->debug('<<populateFromArray');
    }

    /**
     * Gets the maximum OID value from the database for this class type.
     *
     * @return int The maximum OID value in the class table.
     *
     * @since 1.0
     *
     * @throws \Alpha\Exception\AlphaException
     */
    public function getMAX()
    {
        self::$logger->debug('>>getMAX()');

        if (method_exists($this, 'before_getMAX_callback')) {
            $this->{'before_getMAX_callback'}();
        }

        $config = ConfigProvider::getInstance();

        $provider = ActiveRecordProviderFactory::getInstance($config->get('db.provider.name'), $this);
        $max = $provider->getMAX();

        if (method_exists($this, 'after_getMAX_callback')) {
            $this->{'after_getMAX_callback'}();
        }

        self::$logger->debug('<<getMAX ['.$max.']');

        return $max;
    }

    /**
     * Gets the count from the database for the amount of objects of this class.
     *
     * @param array $attributes The attributes to count the objects by (optional).
     * @param array $values     The values of the attributes to count the objects by (optional).
     *
     * @return int
     *
     * @since 1.0
     *
     * @throws \Alpha\Exception\AlphaException
     * @throws \Alpha\Exception\IllegalArguementException
     */
    public function getCount($attributes = array(), $values = array())
    {
        self::$logger->debug('>>getCount(attributes=['.var_export($attributes, true).'], values=['.var_export($values, true).'])');

        if (method_exists($this, 'before_getCount_callback')) {
            $this->{'before_getCount_callback'}();
        }

        $config = ConfigProvider::getInstance();

        if (!is_array($attributes) || !is_array($values)) {
            throw new IllegalArguementException('Illegal arrays attributes=['.var_export($attributes, true).'] and values=['.var_export($values, true).'] provided to loadAllByAttributes');
        }

        $provider = ActiveRecordProviderFactory::getInstance($config->get('db.provider.name'), $this);
        $count = $provider->getCount($attributes, $values);

        if (method_exists($this, 'after_getCount_callback')) {
            $this->{'after_getCount_callback'}();
        }

        self::$logger->debug('<<getCount ['.$count.']');

        return $count;
    }

    /**
     * Gets the count from the database for the amount of entries in the [tableName]_history table for this business object.  Only call
     * this method on classes where maintainHistory = true, otherwise an exception will be thrown.
     *
     * @return int
     *
     * @since 1.2
     *
     * @throws \Alpha\Exception\AlphaException
     */
    public function getHistoryCount()
    {
        self::$logger->debug('>>getHistoryCount()');

        if (method_exists($this, 'before_getHistoryCount_callback')) {
            $this->{'before_getHistoryCount_callback'}();
        }

        $config = ConfigProvider::getInstance();

        $provider = ActiveRecordProviderFactory::getInstance($config->get('db.provider.name'), $this);
        $count = $provider->getHistoryCount();

        if (method_exists($this, 'after_getHistoryCount_callback')) {
            $this->{'after_getHistoryCount_callback'}();
        }

        self::$logger->debug('<<getHistoryCount ['.$count.']');

        return $count;
    }

    /**
     * Gets the OID for the object in zero-padded format (same as getOID()).  This version is designed
     * to be overridden in case you want to do something different with the ID of your objects outside
     * of the standard 11 digit OID sequence used internally in Alpha.
     *
     * @return int 11 digit zero-padded OID value.
     *
     * @since 1.0
     */
    public function getID()
    {
        self::$logger->debug('>>getID()');
        $oid = str_pad($this->OID, 11, '0', STR_PAD_LEFT);
        self::$logger->debug('<<getID ['.$oid.']');

        return $oid;
    }

    /**
     * Gets the OID for the object in zero-padded format (same as getID()).  This version is final so cannot
     * be overridden.
     *
     * @return int 11 digit zero-padded OID value.
     *
     * @since 1.0
     */
    final public function getOID()
    {
        if (self::$logger == null) {
            self::$logger = new Logger('ActiveRecord');
        }
        self::$logger->debug('>>getOID()');
        $oid = str_pad($this->OID, 11, '0', STR_PAD_LEFT);
        self::$logger->debug('<<getOID ['.$oid.']');

        return $oid;
    }

    /**
     * Method for getting version number of the object.
     *
     * @return \Alpha\Model\Type\Integer The object version number.
     *
     * @since 1.0
     */
    public function getVersionNumber()
    {
        self::$logger->debug('>>getVersionNumber()');
        self::$logger->debug('<<getVersionNumber ['.$this->version_num.']');

        return $this->version_num;
    }

    /**
     * Populate all of the enum options for this object from the database.
     *
     * @since 1.0
     *
     * @throws \Alpha\Exception\AlphaException
     */
    protected function setEnumOptions()
    {
        self::$logger->debug('>>setEnumOptions()');

        if (method_exists($this, 'before_setEnumOptions_callback')) {
            $this->{'before_setEnumOptions_callback'}();
        }

        $config = ConfigProvider::getInstance();

        $provider = ActiveRecordProviderFactory::getInstance($config->get('db.provider.name'), $this);
        try {
            $provider->setEnumOptions();
        } catch (NotImplementedException $e) {
            self::$logger->debug($e->getMessage());
        }

        self::$logger->debug('<<setEnumOptions');
    }

    /**
     * Generic getter method for accessing class properties.  Will use the method get.ucfirst($prop) instead if that
     * method exists at a child level (by default).  Set $noChildMethods to true if you don't want to use any
     * get.ucfirst($prop) method even if it exists, false otherwise (default).
     *
     * @param string $prop           The name of the object property to get.
     * @param bool   $noChildMethods Set to true if you do not want to use getters in the child object, defaults to false.
     *
     * @return mixed The property value.
     *
     * @since 1.0
     *
     * @throws \Alpha\Exception\IllegalArguementException
     * @throws \Alpha\Exception\AlphaException
     */
    public function get($prop, $noChildMethods = false)
    {
        if (self::$logger == null) {
            self::$logger = new Logger('ActiveRecord');
        }

        self::$logger->debug('>>get(prop=['.$prop.'], noChildMethods=['.$noChildMethods.'])');

        if (method_exists($this, 'before_get_callback')) {
            $this->{'before_get_callback'}();
        }

        if (empty($prop)) {
            throw new IllegalArguementException('Cannot call get with empty $prop arguement!');
        }

        // handle attributes with a get.ucfirst($prop) method
        if (!$noChildMethods && method_exists($this, 'get'.ucfirst($prop))) {
            if (method_exists($this, 'after_get_callback')) {
                $this->{'after_get_callback'}();
            }

            $methodName = 'get'.ucfirst($prop);

            self::$logger->debug('<<get ['.print_r($this->$methodName(), true).'])');

            return $this->$methodName();
        } else {
            // handle attributes with no dedicated child get.ucfirst($prop) method
            if (isset($this->$prop) && is_object($this->$prop) && method_exists($this->$prop, 'getValue')) {
                if (method_exists($this, 'after_get_callback')) {
                    $this->{'after_get_callback'}();
                }

                // complex types will have a getValue() method, return the value of that
                self::$logger->debug('<<get ['.$this->$prop->getValue().'])');

                return $this->$prop->getValue();
            } elseif (isset($this->$prop)) {
                if (method_exists($this, 'after_get_callback')) {
                    $this->{'after_get_callback'}();
                }

                // simple types returned as-is
                self::$logger->debug('<<get ['.print_r($this->$prop, true).'])');

                return $this->$prop;
            } else {
                self::$logger->debug('<<get');
                throw new AlphaException('Could not access the property ['.$prop.'] on the object of class ['.get_class($this).']');
            }
        }
    }

    /**
     * Generic setter method for setting class properties.  Will use the method set.ucfirst($prop) instead if that
     * method exists at a child level (by default).  Set $noChildMethods to true if you don't want to use
     * any get.ucfirst($prop) method even if it exists, false otherwise (default).
     *
     * @param string $prop           The name of the property to set.
     * @param mixed  $value          The value of the property to set.
     * @param bool   $noChildMethods Set to true if you do not want to use setters in the child object, defaults to false.
     *
     * @since 1.0
     *
     * @throws \Alpha\Exception\AlphaException
     */
    public function set($prop, $value, $noChildMethods = false)
    {
        self::$logger->debug('>>set(prop=['.$prop.'], $value=['.print_r($value, true).'], noChildMethods=['.$noChildMethods.'])');

        if (method_exists($this, 'before_set_callback')) {
            $this->{'before_set_callback'}();
        }

        // handle attributes with a set.ucfirst($prop) method
        if (!$noChildMethods && method_exists($this, 'set'.ucfirst($prop))) {
            if (method_exists($this, 'after_set_callback')) {
                $this->{'after_set_callback'}();
            }

            $methodName = 'set'.ucfirst($prop);

            $this->$methodName($value);
        } else {
            // handle attributes with no dedicated child set.ucfirst($prop) method
            if (isset($this->$prop)) {
                if (method_exists($this, 'after_set_callback')) {
                    $this->{'after_set_callback'}();
                }

                // complex types will have a setValue() method to call
                if (is_object($this->$prop) && get_class($this->$prop) !== false) {
                    if (mb_strtoupper(get_class($this->$prop)) != 'DATE' && mb_strtoupper(get_class($this->$prop)) != 'TIMESTAMP') {
                        $this->$prop->setValue($value);
                    } else {
                        // Date and Timestamp objects have a special setter accepting a string
                        $this->$prop->populateFromString($value);
                    }
                } else {
                    // simple types set directly
                    $this->$prop = $value;
                }
            } else {
                throw new AlphaException('Could not set the property ['.$prop.'] on the object of the class ['.get_class($this).'].  Property may not exist, or else does not have a setValue() method and is private or protected.');
            }
        }
        self::$logger->debug('<<set');
    }

    /**
     * Gets the property object rather than the value for complex attributes.  Returns false if
     * the property exists but is private.
     *
     * @param string $prop The name of the property we are getting.
     *
     * @return \Alpha\Model\Type\TypeInterface|bool The complex type object found.
     *
     * @since 1.0
     *
     * @throws \Alpha\Exception\IllegalArguementException
     */
    public function getPropObject($prop)
    {
        self::$logger->debug('>>getPropObject(prop=['.$prop.'])');

        if (method_exists($this, 'before_getPropObject_callback')) {
            $this->{'before_getPropObject_callback'}();
        }

        // get the class attributes
        $reflection = new \ReflectionObject($this);
        $properties = $reflection->getProperties();

        // firstly, check for private
        $attribute = new ReflectionProperty($this, $prop);

        if ($attribute->isPrivate()) {
            if (method_exists($this, 'after_getPropObject_callback')) {
                $this->{'after_getPropObject_callback'}();
            }

            self::$logger->debug('<<getPropObject [false]');

            return false;
        }

        foreach ($properties as $propObj) {
            $propName = $propObj->name;

            if ($prop == $propName) {
                if (method_exists($this, 'after_getPropObject_callback')) {
                    $this->{'after_getPropObject_callback'}();
                }

                self::$logger->debug('<<getPropObject ['.var_export($this->$prop, true).']');

                return $this->$prop;
            }
        }

        self::$logger->debug('<<getPropObject');
        throw new IllegalArguementException('Could not access the property object ['.$prop.'] on the object of class ['.get_class($this).']');
    }

    /**
     * Checks to see if the table exists in the database for the current business class.
     *
     * @param bool $checkHistoryTable Set to true if you want to check for the existance of the _history table for this DAO.
     *
     * @return bool
     *
     * @since 1.0
     *
     * @throws \Alpha\Exception\AlphaException
     */
    public function checkTableExists($checkHistoryTable = false)
    {
        self::$logger->debug('>>checkTableExists()');

        if (method_exists($this, 'before_checkTableExists_callback')) {
            $this->{'before_checkTableExists_callback'}();
        }

        $config = ConfigProvider::getInstance();

        $provider = ActiveRecordProviderFactory::getInstance($config->get('db.provider.name'), $this);
        $tableExists = $provider->checkTableExists($checkHistoryTable);

        if (method_exists($this, 'after_checkTableExists_callback')) {
            $this->{'after_checkTableExists_callback'}();
        }

        self::$logger->debug('<<checkTableExists ['.$tableExists.']');

        return $tableExists;
    }

    /**
     * Static method to check the database and see if the table for the indicated BO class name
     * exists (assumes table name will be $BOClassName less "Object").
     *
     * @param string $BOClassName       The name of the business object class we are checking.
     * @param bool   $checkHistoryTable Set to true if you want to check for the existance of the _history table for this DAO.
     *
     * @return bool
     *
     * @since 1.0
     *
     * @throws \Alpha\Exception\AlphaException
     */
    public static function checkBOTableExists($BOClassName, $checkHistoryTable = false)
    {
        if (self::$logger == null) {
            self::$logger = new Logger('ActiveRecord');
        }
        self::$logger->debug('>>checkBOTableExists(BOClassName=['.$BOClassName.'])');

        $config = ConfigProvider::getInstance();

        $provider = $config->get('db.provider.name');

        $tableExists = $provider::checkBOTableExists($BOClassName, $checkHistoryTable);

        self::$logger->debug('<<checkBOTableExists ['.($tableExists ? 'true' : 'false').']');

        return $tableExists;
    }

    /**
     * Checks to see if the table in the database matches (for fields) the business class definition, i.e. if the
     * database table is in sync with the class definition.
     *
     * @return bool
     *
     * @since 1.0
     *
     * @throws \Alpha\Exception\AlphaException
     */
    public function checkTableNeedsUpdate()
    {
        self::$logger->debug('>>checkTableNeedsUpdate()');

        $config = ConfigProvider::getInstance();

        if (method_exists($this, 'before_checkTableNeedsUpdate_callback')) {
            $this->{'before_checkTableNeedsUpdate_callback'}();
        }

        $tableExists = $this->checkTableExists();

        if (!$tableExists) {
            self::$logger->debug('<<checkTableNeedsUpdate [true]');

            return true;
        } else {
            $provider = ActiveRecordProviderFactory::getInstance($config->get('db.provider.name'), $this);
            $updateRequired = $provider->checkTableNeedsUpdate();

            if (method_exists($this, 'after_checkTableNeedsUpdate_callback')) {
                $this->{'after_checkTableNeedsUpdate_callback'}();
            }

            self::$logger->debug('<<checkTableNeedsUpdate ['.$updateRequired.']');

            return $updateRequired;
        }
    }

    /**
     * Returns an array containing any properties on the class which have not been created on the database
     * table yet.
     *
     * @return array An array of missing fields in the database table.
     *
     * @since 1.0
     *
     * @throws \Alpha\Exception\AlphaException
     */
    public function findMissingFields()
    {
        self::$logger->debug('>>findMissingFields()');

        $config = ConfigProvider::getInstance();

        if (method_exists($this, 'before_findMissingFields_callback')) {
            $this->{'before_findMissingFields_callback'}();
        }

        $provider = ActiveRecordProviderFactory::getInstance($config->get('db.provider.name'), $this);
        $missingFields = $provider->findMissingFields();

        if (method_exists($this, 'after_findMissingFields_callback')) {
            $this->{'after_findMissingFields_callback'}();
        }

        self::$logger->debug('<<findMissingFields ['.var_export($missingFields, true).']');

        return $missingFields;
    }

    /**
     * Getter for the TABLE_NAME, which should be set by a child of this class.
     *
     * @return string The table name in the database.
     *
     * @since 1.0
     *
     * @throws \Alpha\Exception\AlphaException
     */
    public function getTableName()
    {
        self::$logger->debug('>>getTableName()');

        $className = get_class($this);

        $tableName = $className::TABLE_NAME;

        if (!empty($tableName)) {
            self::$logger->debug('<<getTableName ['.$tableName.']');

            return $tableName;
        } else {
            throw new AlphaException('Error: no TABLE_NAME constant set for the class '.get_class($this));
        }
    }

    /**
     * Method for getting the OID of the person who created this BO.
     *
     * @return \Alpha\Model\Type\Integer The OID of the creator.
     *
     * @since 1.0
     */
    public function getCreatorId()
    {
        self::$logger->debug('>>getCreatorId()');
        self::$logger->debug('<<getCreatorId ['.$this->created_by.']');

        return $this->created_by;
    }

    /**
     * Method for getting the OID of the person who updated this BO.
     *
     * @return \Alpha\Model\Type\Integer The OID of the updator.
     *
     * @since 1.0
     */
    public function getUpdatorId()
    {
        self::$logger->debug('>>getUpdatorId()');
        self::$logger->debug('<<getUpdatorId ['.$this->updated_by.']');

        return $this->updated_by;
    }

    /**
     * Method for getting the date/time of when the BO was created.
     *
     * @return \Alpha\Model\Type\Timestamp
     *
     * @since 1.0
     */
    public function getCreateTS()
    {
        self::$logger->debug('>>getCreateTS()');
        self::$logger->debug('<<getCreateTS ['.$this->created_ts.']');

        return $this->created_ts;
    }

    /**
     * Method for getting the date/time of when the BO was last updated.
     *
     * @return \Alpha\Model\Type\Timestamp
     *
     * @since 1.0
     */
    public function getUpdateTS()
    {
        self::$logger->debug('>>getUpdateTS()');
        self::$logger->debug('<<getUpdateTS ['.$this->updated_ts.']');

        return $this->updated_ts;
    }

    /**
     * Adds the name of the attribute provided to the list of transient (non-saved) attributes for this BO.
     *
     * @param string $attributeName The name of the attribute to not save.
     *
     * @since 1.0
     */
    public function markTransient($attributeName)
    {
        self::$logger->debug('>>markTransient(attributeName=['.$attributeName.'])');
        self::$logger->debug('<<markTransient');
        array_push($this->transientAttributes, $attributeName);
    }

    /**
     * Removes the name of the attribute provided from the list of transient (non-saved) attributes for this BO,
     * ensuring that it will be saved on the next attempt.
     *
     * @param string $attributeName The name of the attribute to save.
     *
     * @since 1.0
     */
    public function markPersistent($attributeName)
    {
        self::$logger->debug('>>markPersistent(attributeName=['.$attributeName.'])');
        self::$logger->debug('<<markPersistent');
        $this->transientAttributes = array_diff($this->transientAttributes, array($attributeName));
    }

    /**
     * Adds the name of the attribute(s) provided to the list of unique (constrained) attributes for this BO.
     *
     * @param string $attribute1Name The first attribute to mark unique in the database.
     * @param string $attribute2Name The second attribute to mark unique in the databse (optional, use only for composite keys).
     * @param string $attribute3Name The third attribute to mark unique in the databse (optional, use only for composite keys).
     *
     * @since 1.0
     */
    protected function markUnique($attribute1Name, $attribute2Name = '', $attribute3Name = '')
    {
        self::$logger->debug('>>markUnique(attribute1Name=['.$attribute1Name.'], attribute2Name=['.$attribute2Name.'], attribute3Name=['.$attribute3Name.'])');

        if (empty($attribute2Name)) {
            array_push($this->uniqueAttributes, $attribute1Name);
        } else {
            // Process composite unique keys: add them seperated by a + sign
            if ($attribute3Name == '') {
                $attributes = $attribute1Name.'+'.$attribute2Name;
            } else {
                $attributes = $attribute1Name.'+'.$attribute2Name.'+'.$attribute3Name;
            }

            array_push($this->uniqueAttributes, $attributes);
        }

        self::$logger->debug('<<markUnique');
    }

    /**
     * Returns the array of names of unique attributes on this BO.
     *
     * @return array
     *
     * @since 1.1
     */
    public function getUniqueAttributes()
    {
        self::$logger->debug('>>getUniqueAttributes()');
        self::$logger->debug('<<getUniqueAttributes: ['.print_r($this->uniqueAttributes, true).']');

        return $this->uniqueAttributes;
    }

    /**
     * Gets an array of all of the names of the active database indexes for this class.
     *
     * @return array An array of database indexes on this table.
     *
     * @since 1.0
     *
     * @throws \Alpha\Exception\AlphaException
     */
    public function getIndexes()
    {
        self::$logger->debug('>>getIndexes()');

        $config = ConfigProvider::getInstance();

        $provider = ActiveRecordProviderFactory::getInstance($config->get('db.provider.name'), $this);
        $indexNames = $provider->getIndexes();

        self::$logger->debug('<<getIndexes ['.print_r($indexNames, true).']');

        return $indexNames;
    }

    /**
     * Creates a foreign key constraint (index) in the database on the given attribute.
     *
     * @param string $attributeName         The name of the attribute to apply the index on.
     * @param string $relatedClass          The name of the related class in the format "NameObject".
     * @param string $relatedClassAttribute The name of the field to relate to on the related class.
     * @param string $indexName             The optional name for the index, will calculate if not provided.
     *
     * @since 1.0
     *
     * @throws \Alpha\Exception\FailedIndexCreateException
     */
    public function createForeignIndex($attributeName, $relatedClass, $relatedClassAttribute, $indexName = null)
    {
        self::$logger->debug('>>createForeignIndex(attributeName=['.$attributeName.'], relatedClass=['.$relatedClass.'], relatedClassAttribute=['.$relatedClassAttribute.'], indexName=['.$indexName.']');

        $config = ConfigProvider::getInstance();

        if (method_exists($this, 'before_createForeignIndex_callback')) {
            $this->{'before_createForeignIndex_callback'}();
        }

        $relatedBO = new $relatedClass();
        $tableName = $relatedBO->getTableName();

        // if the relation is on itself (table-wise), exit without attempting to create the foreign keys
        if ($this->getTableName() == $tableName) {
            self::$logger->debug('<<createForeignIndex');

            return;
        }

        $provider = ActiveRecordProviderFactory::getInstance($config->get('db.provider.name'), $this);
        $provider->createForeignIndex($attributeName, $relatedClass, $relatedClassAttribute, $indexName);

        if (method_exists($this, 'after_createForeignIndex_callback')) {
            $this->{'after_createForeignIndex_callback'}();
        }

        self::$logger->debug('<<createForeignIndex');
    }

    /**
     * Creates a unique index in the database on the given attribute(s).
     *
     * @param string $attribute1Name The first attribute to mark unique in the database.
     * @param string $attribute2Name The second attribute to mark unique in the databse (optional, use only for composite keys).
     * @param string $attribute3Name The third attribute to mark unique in the databse (optional, use only for composite keys).
     *
     * @since 1.0
     *
     * @throws \Alpha\Exception\FailedIndexCreateException
     */
    public function createUniqueIndex($attribute1Name, $attribute2Name = '', $attribute3Name = '')
    {
        self::$logger->debug('>>createUniqueIndex(attribute1Name=['.$attribute1Name.'], attribute2Name=['.$attribute2Name.'], attribute3Name=['.$attribute3Name.'])');

        if (method_exists($this, 'before_createUniqueIndex_callback')) {
            $this->{'before_createUniqueIndex_callback'}();
        }

        $config = ConfigProvider::getInstance();

        $provider = ActiveRecordProviderFactory::getInstance($config->get('db.provider.name'), $this);
        $provider->createUniqueIndex($attribute1Name, $attribute2Name, $attribute3Name);

        if (method_exists($this, 'after_createUniqueIndex_callback')) {
            $this->{'before_createUniqueIndex_callback'}();
        }

        self::$logger->debug('<<createUniqueIndex');
    }

    /**
     * Gets the data labels array.
     *
     * @return array An array of attribute labels.
     *
     * @since 1.0
     */
    public function getDataLabels()
    {
        self::$logger->debug('>>getDataLabels()');
        self::$logger->debug('<<getDataLabels() ['.var_export($this->dataLabels, true).'])');

        return $this->dataLabels;
    }

    /**
     * Sets the data labels array.
     *
     * @param array $labels
     *
     * @throws \Alpha\Exception\IllegalArguementException
     *
     * @since 1.2
     */
    public function setDataLabels($labels)
    {
        self::$logger->debug('>>setDataLabels(labels=['.print_r($labels, true).'])');

        if (is_array($labels)) {
            $this->dataLabels = $labels;
        } else {
            throw new IllegalArguementException('The value ['.print_r($labels, true).'] provided to setDataLabels() is not a valid array!');
        }

        self::$logger->debug('<<setDataLabels()');
    }

    /**
     * Gets the data label for the given attribute name.
     *
     * @param $att The attribute name to get the label for.
     *
     * @return string
     *
     * @since 1.0
     *
     * @throws \Alpha\Exception\IllegalArguementException
     */
    public function getDataLabel($att)
    {
        self::$logger->debug('>>getDataLabel(att=['.$att.'])');

        if (in_array($att, array_keys($this->dataLabels))) {
            self::$logger->debug('<<getDataLabel ['.$this->dataLabels[$att].'])');

            return $this->dataLabels[$att];
        } else {
            self::$logger->debug('<<getDataLabel');
            throw new IllegalArguementException('No data label found on the class ['.get_class($this).'] for the attribute ['.$att.']');
        }
    }

    /**
     * Loops over the core and custom BO directories and builds an array of all of the BO class names in the system.
     *
     * @return array An array of business object class names.
     *
     * @since 1.0
     */
    public static function getBOClassNames()
    {
        if (self::$logger == null) {
            self::$logger = new Logger('ActiveRecord');
        }
        self::$logger->debug('>>getBOClassNames()');

        $config = ConfigProvider::getInstance();

        $classNameArray = array();

        if (file_exists($config->get('app.root').'src/Model')) { // it is possible it has not been created yet...
            // first get any custom BOs
            $handle = opendir($config->get('app.root').'src/Model');

            // loop over the business object directory
            while (false !== ($file = readdir($handle))) {
                if (preg_match('/.php/', $file)) {
                    $classname = 'Model\\'.mb_substr($file, 0, -4);

                    if (class_exists($classname)) {
                        array_push($classNameArray, $classname);
                    }
                }
            }
        }

        // now loop over the core BOs provided with Alpha
        if (file_exists($config->get('app.root').'Alpha/Model')) {
            $handle = opendir($config->get('app.root').'Alpha/Model');
        } elseif ($config->get('app.root').'vendor/alphadevx/alpha/Alpha/Model') {
            $handle = opendir($config->get('app.root').'vendor/alphadevx/alpha/Alpha/Model');
        }

        // loop over the business object directory
        while (false !== ($file = readdir($handle))) {

The variable $handle does not seem to be defined for all execution paths leading up to this point.

            if (preg_match('/.php/', $file)) {
                $classname = 'Alpha\\Model\\'.mb_substr($file, 0, -4);

                if (class_exists($classname) && substr($classname, 0, 24) != 'Alpha\\Model\\ActiveRecord') {
                    array_push($classNameArray, $classname);
                }
            }
        }

        asort($classNameArray);
        self::$logger->debug('<<getBOClassNames ['.var_export($classNameArray, true).']');

        return $classNameArray;
    }

    /**
     * Get the array of default attribute names.
     *
     * @return array An array of attribute names.
     *
     * @since 1.0
     */
    public function getDefaultAttributes()
    {
        self::$logger->debug('>>getDefaultAttributes()');
        self::$logger->debug('<<getDefaultAttributes ['.var_export($this->defaultAttributes, true).']');

        return $this->defaultAttributes;
    }

    /**
     * Get the array of transient attribute names.
     *
     * @return array An array of attribute names.
     *
     * @since 1.0
     */
    public function getTransientAttributes()
    {
        self::$logger->debug('>>getTransientAttributes()');
        self::$logger->debug('<<getTransientAttributes ['.var_export($this->transientAttributes, true).']');

        return $this->transientAttributes;
    }

    /**
     * Get the array of persistent attribute names, i.e. those that are saved in the database.
     *
     * @return array An array of attribute names.
     *
     * @since 1.0
     */
    public function getPersistentAttributes()
    {
        self::$logger->debug('>>getPersistentAttributes()');

        $attributes = array();

        // get the class attributes
        $reflection = new ReflectionClass(get_class($this));
        $properties = $reflection->getProperties();

        foreach ($properties as $propObj) {
            $propName = $propObj->name;

            // filter transient attributes
            if (!in_array($propName, $this->transientAttributes)) {
                array_push($attributes, $propName);
            }
        }

        self::$logger->debug('<<getPersistentAttributes ['.var_export($attributes, true).']');

        return $attributes;
    }

    /**
     * Setter for the Object ID (OID).
     *
     * @param int $OID The Object ID.
     *
     * @since 1.0
     */
    public function setOID($OID)
    {
        self::$logger->debug('>>setOID(OID=['.$OID.'])');
        self::$logger->debug('<<setOID');
        $this->OID = $OID;
    }

    /**
     * Inspector to see if the business object is transient (not presently stored in the database).
     *
     * @return bool
     *
     * @since 1.0
     */
    public function isTransient()
    {
        self::$logger->debug('>>isTransient()');

        if (empty($this->OID) || !isset($this->OID) || $this->OID == '00000000000') {
            self::$logger->debug('<<isTransient [true]');

            return true;
        } else {
            self::$logger->debug('<<isTransient [false]');

            return false;
        }
    }

    /**
     * Get the last database query run on this object.
     *
     * @return string An SQL query string.
     *
     * @since 1.0
     */
    public function getLastQuery()
    {
        self::$logger->debug('>>getLastQuery()');
        self::$logger->debug('<<getLastQuery ['.$this->lastQuery.']');

        return $this->lastQuery;
    }

    /**
     * Unsets all of the attributes of this object to null.
     *
     * @since 1.0
     */
    private function clear()
    {
        self::$logger->debug('>>clear()');

        // get the class attributes
        $reflection = new ReflectionClass(get_class($this));
        $properties = $reflection->getProperties();

        foreach ($properties as $propObj) {
            $propName = $propObj->name;
            if (!$propObj->isPrivate()) {
                unset($this->$propName);
            }
        }

        self::$logger->debug('<<clear');
    }

    /**
     * Reloads the object from the database, overwritting any attribute values in memory.
     *
     * @since 1.0
     *
     * @throws \Alpha\Exception\AlphaException
     */
    public function reload()
    {
        self::$logger->debug('>>reload()');

        if (!$this->isTransient()) {
            $this->load($this->getOID());
        } else {
            throw new AlphaException('Cannot reload transient object from database!');
        }
        self::$logger->debug('<<reload');
    }

    /**
     * Loads the definition from the file system for the BO class name provided.
     *
     * @param string $classname The name of the business object class name.
     *
     * @since 1.0
     *
     * @throws \Alpha\Exception\IllegalArguementException
     *
     * @deprecated Use autoloader!
     */
    public static function loadClassDef($classname)
    {
        if (self::$logger == null) {
            self::$logger = new Logger('ActiveRecord');
        }
        self::$logger->debug('>>loadClassDef(classname=['.$classname.'])');

        $config = ConfigProvider::getInstance();

        if (file_exists($config->get('app.root').'Model/'.$classname.'.php')) {
            require_once $config->get('app.root').'Model/'.$classname.'.php';
        } elseif (file_exists($config->get('app.root').'alpha/Alpha/Model/'.$classname.'.php')) {
            require_once $config->get('app.root').'alpha/Alpha/Model/'.$classname.'.php';
        } elseif (file_exists($config->get('app.root').'alpha/Alpha/Model/Types/'.$classname.'.php')) {
            require_once $config->get('app.root').'alpha/Alpha/Model/Types/'.$classname.'.php';
        } else {
            throw new IllegalArguementException('The class ['.$classname.'] is not defined anywhere!');
        }

        self::$logger->debug('<<loadClassDef');
    }

    /**
     * Checks that a record exists for the BO in the database.
     *
     * @param int $OID The Object ID of the object we want to see whether it exists or not.
     *
     * @return bool
     *
     * @since 1.0
     *
     * @throws \Alpha\Exception\AlphaException
     */
    public function checkRecordExists($OID)
    {
        self::$logger->debug('>>checkRecordExists(OID=['.$OID.'])');

        if (method_exists($this, 'before_checkRecordExists_callback')) {
            $this->{'before_checkRecordExists_callback'}();
        }

        $config = ConfigProvider::getInstance();

        $provider = ActiveRecordProviderFactory::getInstance($config->get('db.provider.name'), $this);
        $recordExists = $provider->checkRecordExists($OID);

        if (method_exists($this, 'after_checkRecordExists_callback')) {
            $this->{'after_checkRecordExists_callback'}();
        }

        self::$logger->debug('<<checkRecordExists ['.$recordExists.']');

        return $recordExists;
    }

    /**
     * Checks to see if the table name matches the classname, and if not if the table
     * name matches the classname name of another BO, i.e. the table is used to store
     * multiple types of BOs.
     *
     * @return bool
     *
     * @since 1.0
     *
     * @throws \Alpha\Exception\BadBOTableNameException
     */
    public function isTableOverloaded()
    {
        self::$logger->debug('>>isTableOverloaded()');

        $config = ConfigProvider::getInstance();

        $provider = ActiveRecordProviderFactory::getInstance($config->get('db.provider.name'), $this);
        $isOverloaded = $provider->isTableOverloaded();

        self::$logger->debug('<<isTableOverloaded ['.$isOverloaded.']');

        return $isOverloaded;
    }

    /**
     * Starts a new database transaction.
     *
     * @param $BO The ActiveRecord instance to pass to the database provider. Leave empty to have a new Person passed.
     *
     * @since 1.0
     *
     * @throws \Alpha\Exception\AlphaException
     */
    public static function begin($BO = null)
    {
        if (self::$logger == null) {
            self::$logger = new Logger('ActiveRecord');
        }
        self::$logger->debug('>>begin()');

        $config = ConfigProvider::getInstance();

        if (isset($BO)) {
            $provider = ActiveRecordProviderFactory::getInstance($config->get('db.provider.name'), $BO);
        } else {
            $provider = ActiveRecordProviderFactory::getInstance($config->get('db.provider.name'), new Person());
        }

        try {
            $provider->begin();
        } catch (\Exception $e) {
            throw new AlphaException('Error beginning a new transaction, error is ['.$e->getMessage().']');
        }

        self::$logger->debug('<<begin');
    }

    /**
     * Commits the current database transaction.
     *
     * @param $BO The ActiveRecord instance to pass to the database provider. Leave empty to have a new Person passed.
     *
     * @since 1.0
     *
     * @throws \Alpha\Exception\FailedSaveException
     */
    public static function commit($BO = null)
    {
        if (self::$logger == null) {
            self::$logger = new Logger('ActiveRecord');
        }
        self::$logger->debug('>>commit()');

        $config = ConfigProvider::getInstance();

        if (isset($BO)) {
            $provider = ActiveRecordProviderFactory::getInstance($config->get('db.provider.name'), $BO);
        } else {
            $provider = ActiveRecordProviderFactory::getInstance($config->get('db.provider.name'), new Person());
        }

        try {
            $provider->commit();
        } catch (\Exception $e) {
            throw new FailedSaveException('Error commiting a transaction, error is ['.$e->getMessage().']');
        }

        self::$logger->debug('<<commit');
    }

    /**
     * Aborts the current database transaction.
     *
     * @param $BO The ActiveRecord instance to pass to the database provider. Leave empty to have a new Person passed.
     *
     * @since 1.0
     *
     * @throws \Alpha\Exception\AlphaException
     */
    public static function rollback($BO = null)
    {
        if (self::$logger == null) {
            self::$logger = new Logger('ActiveRecord');
        }
        self::$logger->debug('>>rollback()');

        $config = ConfigProvider::getInstance();

        if (isset($BO)) {
            $provider = ActiveRecordProviderFactory::getInstance($config->get('db.provider.name'), $BO);
        } else {
            $provider = ActiveRecordProviderFactory::getInstance($config->get('db.provider.name'), new Person());
        }

        try {
            $provider->rollback();
        } catch (\Exception $e) {
            throw new FailedSaveException('Error aborting a transaction, error is ['.$e->getMessage().']');
        }

        self::$logger->debug('<<rollback');
    }

    /**
     * Static method that tries to determine if the system database has been installed or not.
     *
     * @return bool
     *
     * @since 1.0
     */
    public static function isInstalled()
    {
        if (self::$logger == null) {
            self::$logger = new Logger('ActiveRecord');
        }
        self::$logger->debug('>>isInstalled()');

        $config = ConfigProvider::getInstance();

$config is not used, you could remove the assignment.

        /*
         * Install conditions are:
         *
         * 1. person table exists
         * 2. rights table exists
         */
        if (self::checkBOTableExists('Alpha\Model\Person') && self::checkBOTableExists('Alpha\Model\Rights')) {
            self::$logger->debug('<<isInstalled [true]');

            return true;
        } else {
            self::$logger->debug('<<isInstalled [false]');

            return false;
        }
    }

    /**
     * Returns true if the BO has a Relation property called tags, false otherwise.
     *
     * @return bool
     *
     * @since 1.0
     */
    public function isTagged()
    {
        if (isset($this->taggedAttributes) && isset($this->tags) && $this->tags instanceof \Alpha\Model\Type\Relation) {

The property tags does not exist. Did you maybe forget to declare it?

            return true;
        } else {
            return false;
        }
    }

    /**
     * Returns the contents of the taggedAttributes array, or an empty array if that does not exist.
     *
     * @return array
     *
     * @since 1.2.3
     */
    public function getTaggedAttributes()
    {
        if ($this->isTagged()) {
            return $this->taggedAttributes;

The property taggedAttributes does not exist. Did you maybe forget to declare it?

        } else {
            return array();
        }
    }

    /**
     * Setter for the BO version number.
     *
     * @param int $versionNumber The version number.
     *
     * @since 1.0
     */
    private function setVersion($versionNumber)
    {
        $this->version_num->setValue($versionNumber);
    }

    /**
     * Cast a BO to another type of BO.  A new BO will be returned with the same OID and
     * version_num as the old BO, so this is NOT a true cast but is a copy.  All attribute
     * values will be copied accross.
     *
     * @param string                   $targetClassName The fully-qualified name of the target BO class.
     * @param \Alpha\Model\ActiveRecord $originalBO      The original business object.
     *
     * @return \Alpha\Model\ActiveRecord The new business object resulting from the cast.
     *
     * @since 1.0
     */
    public function cast($targetClassName, $originalBO)
    {
        $BO = new $targetClassName();
        $BO->setOID($originalBO->getOID());
        $BO->setVersion($originalBO->getVersion());

        // get the class attributes
        $originalBOreflection = new ReflectionClass(get_class($originalBO));
        $originalBOproperties = $originalBOreflection->getProperties();
        $newBOreflection = new ReflectionClass($targetClassName);
        $newBOproperties = $newBOreflection->getProperties();

        // copy the property values from the old BO to the new BO

        if (count($originalBOproperties) < count($newBOproperties)) {
            // the original BO is smaller, so loop over its properties
            foreach ($originalBOproperties as $propObj) {
                $propName = $propObj->name;
                if (!in_array($propName, $this->transientAttributes)) {
                    $BO->set($propName, $originalBO->get($propName));
                }
            }
        } else {
            // the new BO is smaller, so loop over its properties
            foreach ($newBOproperties as $propObj) {
                $propName = $propObj->name;
                if (!in_array($propName, $this->transientAttributes)) {
                    $BO->set($propName, $originalBO->get($propName));
                }
            }
        }

        return $BO;
    }

    /**
     * Returns the simple class name, stripped of the namespace.
     *
     * @return string
     *
     * @since 1.0
     */
    public function getFriendlyClassName()
    {
        $reflectClass = new ReflectionClass($this);

        return $reflectClass->getShortname();
    }

    /**
     * Check to see if an attribute exists on the BO.
     *
     * @param $attribute The attribute name.
     *
     * @return bool
     *
     * @since 1.0
     */
    public function hasAttribute($attribute)
    {
        try {
            $exists = $this->$attribute;

$exists is not used, you could remove the assignment.

            return true;
        } catch (\Exception $e) {

catch (\Exception $e) { return false; } does not seem to be reachable.

            return false;
        }
    }

    /**
     * Stores the business object to the configured cache instance.
     *
     * @since 1.1
     */
    public function addToCache()
    {
        self::$logger->debug('>>addToCache()');
        $config = ConfigProvider::getInstance();

        try {
            $cache = CacheProviderFactory::getInstance($config->get('cache.provider.name'));
            $cache->set(get_class($this).'-'.$this->getOID(), $this, 3600);
        } catch (\Exception $e) {
            self::$logger->error('Error while attempting to store a business object to the ['.$config->get('cache.provider.name').'] 
                instance: ['.$e->getMessage().']');
        }

        self::$logger->debug('<<addToCache');
    }

    /**
     * Removes the business object from the configured cache instance.
     *
     * @since 1.1
     */
    public function removeFromCache()
    {
        self::$logger->debug('>>removeFromCache()');
        $config = ConfigProvider::getInstance();

        try {
            $cache = CacheProviderFactory::getInstance($config->get('cache.provider.name'));
            $cache->delete(get_class($this).'-'.$this->getOID());
        } catch (\Exception $e) {
            self::$logger->error('Error while attempting to remove a business object from ['.$config->get('cache.provider.name').']
                instance: ['.$e->getMessage().']');
        }

        self::$logger->debug('<<removeFromCache');
    }

    /**
     * Attempts to load the business object from the configured cache instance.
     *
     * @since 1.1
     *
     * @return bool
     */
    public function loadFromCache()
    {
        self::$logger->debug('>>loadFromCache()');
        $config = ConfigProvider::getInstance();

        try {
            $cache = CacheProviderFactory::getInstance($config->get('cache.provider.name'));
            $BO = $cache->get(get_class($this).'-'.$this->getOID());

            if (!$BO) {
                self::$logger->debug('Cache miss on key ['.get_class($this).'-'.$this->getOID().']');
                self::$logger->debug('<<loadFromCache: [false]');

                return false;
            } else {
                // get the class attributes
                $reflection = new ReflectionClass(get_class($this));
                $properties = $reflection->getProperties();

                foreach ($properties as $propObj) {
                    $propName = $propObj->name;

                    // filter transient attributes
                    if (!in_array($propName, $this->transientAttributes)) {
                        $this->set($propName, $BO->get($propName, true));
                    } elseif (!$propObj->isPrivate() && isset($this->$propName) && $this->$propName instanceof Relation) {
                        $prop = $this->getPropObject($propName);

                        // handle the setting of ONE-TO-MANY relation values
                        if ($prop->getRelationType() == 'ONE-TO-MANY') {
                            $this->set($propObj->name, $this->getOID());
                        }
                    }
                }

                self::$logger->debug('<<loadFromCache: [true]');

                return true;
            }
        } catch (\Exception $e) {
            self::$logger->error('Error while attempting to load a business object from ['.$config->get('cache.provider.name').']
             instance: ['.$e->getMessage().']');

            self::$logger->debug('<<loadFromCache: [false]');

            return false;
        }
    }

    /**
     * Sets the last query executed on this business object.
     *
     * @param string $query
     *
     * @since 1.1
     */
    public function setLastQuery($query)
    {
        self::$logger->sql($query);
        $this->lastQuery = $query;
    }

    /**
     * Re-initialize the static logger property on the BO after de-serialize, as PHP does
     * not serialize static properties.
     *
     * @since 1.2
     */
    public function __wakeup()
    {
        if (self::$logger == null) {
            self::$logger = new Logger(get_class($this));
        }
    }

    /**
     * Sets maintainHistory attribute on this DAO.
     *
     * @param bool $maintainHistory
     *
     * @throws \Alpha\Exception\IllegalArguementException
     *
     * @since 1.2
     */
    public function setMaintainHistory($maintainHistory)
    {
        if (!is_bool($maintainHistory)) {
            throw new IllegalArguementException('Non-boolean value ['.$maintainHistory.'] passed to setMaintainHistory method!');
        }

        $this->maintainHistory = $maintainHistory;
    }

    /**
     * Gets the value of the  maintainHistory attribute.
     *
     * @return bool
     *
     * @since 1.2
     */
    public function getMaintainHistory()
    {
        return $this->maintainHistory;
    }

    /**
     * Return a hash array of the object containing attribute names and simplfied values.
     *
     * @return array
     *
     * @since  1.2.4
     */
    public function toArray()
    {
        // get the class attributes
        $reflection = new ReflectionClass(get_class($this));
        $properties = $reflection->getProperties();

        $propArray = array();

        foreach ($properties as $propObj) {
            $propName = $propObj->name;

            if (!in_array($propName, $this->transientAttributes)) {
                $val = $this->get($propName);

                if (is_object($val)) {
                    $val = $val->getValue();
                }

                $propArray[$propName] = $val;
            }
        }

        return $propArray;
    }

    /**
     * Check to see if the configured database exists.
     *
     * @return bool
     *
     * @since 2.0
     */
    public static function checkDatabaseExists()
    {
        $config = ConfigProvider::getInstance();

        $provider = ActiveRecordProviderFactory::getInstance($config->get('db.provider.name'), new Person());

        return $provider->checkDatabaseExists();
    }

    /**
     * Creates the configured database.
     *
     * @throws \Alpha\Exception\AlphaException
     *
     * @since 2.0
     */
    public static function createDatabase()
    {
        $config = ConfigProvider::getInstance();

        $provider = ActiveRecordProviderFactory::getInstance($config->get('db.provider.name'), new Person());
        $provider->createDatabase();
    }

    /**
     * Drops the configured database.
     *
     * @throws \Alpha\Exception\AlphaException
     *
     * @since 2.0
     */
    public static function dropDatabase()
    {
        $config = ConfigProvider::getInstance();

        $provider = ActiveRecordProviderFactory::getInstance($config->get('db.provider.name'), new Person());
        $provider->dropDatabase();
    }
}