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Deon George
2014-08-22 16:50:01 +10:00
parent 7961e60901
commit b657781a5b
20 changed files with 466 additions and 96 deletions
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184
classes/lnApp/ORM.php
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@@ -6,7 +6,7 @@
* This file contains enhancements for Kohana, that should be considered upstream and maybe havent been yet.
* It also contains some functionality for OSB, which cannot be covered in ORM_OSB.
*
* @package WWZ
* @package lnApp
* @category Modifications
* @author Deon George
* @copyright (c) 2014 Deon George
@@ -18,12 +18,95 @@ abstract class lnApp_ORM extends Kohana_ORM {
private $_object_formated = array();
private $_formated = FALSE;
protected $_created_column = array('column'=>'date_orig','format'=>TRUE);
protected $_updated_column = array('column'=>'date_last','format'=>TRUE);
// Our filters used to display values in a friendly format
protected $_display_filters = array();
// Our attributes used in forms.
protected $_form = array();
// Our attribute blobs that should be compressed
protected $_compress_column = array();
// Our attributes that should be converted to NULL when empty
protected $_nullifempty = array();
// Our attribute values that need to be stored as serialized
protected $_serialize_column = array();
// If we need to load any sub items on loading this model
protected $_sub_items = array();
protected $_sub_items_load = array();
protected $_sub_items_sorted = FALSE;
// Whether to show a SystemMessage when a record is saved.
protected $_save_message = FALSE;
/**
* Auto process some data as it comes from the database
* @see parent::__get()
*/
public function __get($column) {
if (array_key_exists($column,$this->_table_columns)) {
// If the column is a blob, we'll decode it automatically
if (
$this->_table_columns[$column]['data_type'] == 'blob'
AND in_array($column,$this->_compress_column)
AND ! is_null($this->_object[$column])
AND ! isset($this->_changed[$column])
AND (! isset($this->_table_columns[$column]['auto_convert']) OR ! $this->_table_columns[$column]['auto_convert'])
) {
// In case our blob hasnt been saved as one.
try {
$this->_object[$column] = $this->_blob($this->_object[$column]);
}
catch(Exception $e) {
HTTP_Exception::factory(501,Kohana_Exception::text($e));
}
$this->_table_columns[$column]['auto_convert'] = TRUE;
}
// If the column is a serialized object, we'll unserialize it.
if (
in_array($column,$this->_serialize_column)
AND is_string($this->_object[$column])
AND ! is_null($this->_object[$column])
AND ! isset($this->_changed[$column])
AND (! isset($this->_table_columns[$column]['unserialized']) OR ! $this->_table_columns[$column]['unserialized'])
) {
// In case our object hasnt been saved as serialized.
try {
$this->_object[$column] = unserialize($this->_object[$column]);
}
catch(Exception $e) {
HTTP_Exception::factory(501,Kohana_Exception::text($e));
}
$this->_table_columns[$column]['unserialized'] = TRUE;
}
}
return parent::__get($column);
}
/**
* Retrieve and Store DB BLOB data in compressed format.
*/
private function _blob($data,$set=FALSE) {
try {
return $set ? gzcompress($this->_serialize($data,$set)) : $this->_serialize(gzuncompress($data));
// Maybe the data isnt compressed?
} catch (Exception $e) {
return $this->_serialize($data,$set);
}
}
/**
* Format fields for display purposes
*
@@ -37,6 +120,57 @@ abstract class lnApp_ORM extends Kohana_ORM {
$this->_formated = TRUE;
}
/**
* Intercept our object load, so that we can load our subitems
*/
protected function _load_values(array $values) {
parent::_load_values($values);
$sort = FALSE;
if ($this->_loaded AND $this->_sub_items_load AND count($this->_sub_items_load) == 1)
foreach ($this->_sub_items_load as $item => $sort)
$this->_sub_items = $this->$item->find_all()->as_array();
if ($sort) {
Sort::MAsort($this->_sub_items,$sort);
$this->_sub_items_sorted = TRUE;
}
return $this;
}
/**
* If a column is marked to be nullified if it is empty, this is where it is done.
*/
private function _nullifempty(array $array) {
foreach ($array as $k=>$v) {
if (is_array($v)) {
if (is_null($x=$this->_nullifempty($v)))
unset($array[$k]);
else
$array[$k] = $x;
} elseif (! $v AND $v !== 0 AND $v !== '0')
unset($array[$k]);
}
return count($array) ? $array : NULL;
}
/**
* Try and (un)serialize our data, and if it fails, just return it.
*/
private function _serialize($data,$set=FALSE) {
try {
return $set ? serialize($data) : unserialize($data);
// Maybe the data serialized?
} catch (Exception $e) {
return $data;
}
}
/**
* Overrides Kohana cache so that it can be globally disabled.
*/
@@ -164,6 +298,27 @@ abstract class lnApp_ORM extends Kohana_ORM {
}
public function save(Validation $validation=NULL) {
// Find any fields that have changed, and process them.
if ($this->_changed)
foreach ($this->_changed as $c) {
// Any fields that are blobs, and encode them.
if (! is_null($this->_object[$c]) AND $this->_table_columns[$c]['data_type'] == 'blob' AND in_array($c,$this->_compress_column)) {
$this->_object[$c] = $this->_blob($this->_object[$c],TRUE);
// We need to reset our auto_convert flag
if (isset($this->_table_columns[$c]['auto_convert']))
$this->_table_columns[$c]['auto_convert'] = FALSE;
// Any fields that should be seriailzed, we'll do that.
} elseif (is_array($this->_object[$c]) AND in_array($c,$this->_serialize_column)) {
$this->_object[$c] = serialize($this->_object[$c]);
}
// Test if the value has still changed
if ($this->_original_values AND $this->_object[$c] == $this->_original_values[$c])
unset($this->_changed[$c]);
}
parent::save();
if ($this->saved() AND $this->_save_message AND (PHP_SAPI !== 'cli'))
@@ -175,10 +330,26 @@ abstract class lnApp_ORM extends Kohana_ORM {
return $this;
}
public function subitems() {
return $this->_sub_items;
}
/**
* Override the Kohana processing so we can null values if required.
* We override this function, because we do set our own primary key value
*/
public function values(array $values, array $expected = NULL) {
foreach ($values as $k=>$v) {
// Convert to NULL
if (in_array($k,$this->_nullifempty)) {
if (is_array($v))
$values[$k] = $this->_nullifempty($v);
elseif (! $v AND $v !== 0 AND $v !== '0')
$values[$k] = NULL;
}
}
parent::values($values,$expected);
if (isset($values[$this->_primary_key]))
@@ -186,5 +357,16 @@ abstract class lnApp_ORM extends Kohana_ORM {
return $this;
}
public function what_changed() {
$result = array();
foreach ($this->changed() as $k) {
$result[$k]['old'] = ($x=Arr::get($this->_original_values,$k)) ? $x : serialize($x);
$result[$k]['new'] = ($x=Arr::get($this->_object,$k)) ? $x : serialize($x);
}
return $result;
}
}
?>