Created
September 10, 2019 17:39
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<?php | |
namespace arashrasoulzadeh\auth\src\traits; | |
use arashrasoulzadeh\auth\src\model\UserAuthMetas; | |
trait ModelMetaTrait | |
{ | |
public $autoExclude = false; | |
public $is_auto_excluded = false; | |
public $check_for_duplicate = true; | |
public $additionalExcludedMetas = [ "created_at" , "updated_at" ]; | |
/** @var array | |
* used by caching system | |
*/ | |
private $fieldCaches = [ | |
]; | |
/** | |
* @inheritDoc | |
*/ | |
public function __get ( $key ) | |
{ | |
$this->refreshAutoExcludes(); | |
$original = parent::__get( $key ); | |
if ( !in_array( $key , $this->excludeInMeta() ) ) { | |
if ( !isset( $this->fieldCaches[ $key ] ) ) { | |
$value = $this->loadFromDatabase( $key ); | |
$this->fieldCaches[ $key ] = $this->purifyValue( $value ); | |
return $this->fieldCaches[ $key ]; | |
} | |
else { | |
return $this->fieldCaches[ $key ]; | |
} | |
} | |
else { | |
return $original; | |
} | |
} | |
/** | |
* @inheritDoc | |
*/ | |
public function __set ( $key , $value ) | |
{ | |
if ( is_array( $value ) ) { | |
$value = json_encode( $value ); | |
} | |
$this->refreshAutoExcludes(); | |
$original = parent::__get( $key ); | |
if ( !in_array( $key , $this->excludeInMeta() ) ) { | |
$last = $this->$key; | |
if ( $this->check_for_duplicate ) { | |
if ( $last != $value ) { | |
$this->saveToDatabase( $key , $value ); | |
$this->fieldCaches[ $key ] = $value; | |
} | |
} | |
else { | |
$this->saveToDatabase( $key , $value ); | |
$this->fieldCaches[ $key ] = $value; | |
} | |
parent::__set( $key , $value ); | |
} | |
else { | |
parent::__set( $key , $value ); | |
} | |
} | |
public function refreshAutoExcludes () | |
{ | |
try { | |
if ( $this->autoExclude && !$this->is_auto_excluded ) { | |
$this->is_auto_excluded = true; | |
$sample = $this->all()->first(); | |
if ( !is_null( $sample ) ) { | |
$attributes = $sample->getAttributes(); | |
$this->additionalExcludedMetas[] = array_keys( $attributes ); | |
} | |
} | |
} catch ( \Exception $exception ) { | |
} | |
} | |
/** | |
* @return array | |
* this function keys will NOT be loaded from metas | |
*/ | |
public function excludeInMeta () | |
{ | |
return array_merge( [] , $this->additionalExcludedMetas ); | |
} | |
/** | |
* load the key from database | |
* | |
* @param $key | |
* | |
* @return string|null | |
*/ | |
public function loadFromDatabase ( $key ) | |
{ | |
$item = UserAuthMetas | |
::where( "class" , $this->table ) | |
->where( "key" , $key ) | |
->orderBy( "id" , "desc" ) | |
->where( "owner" , $this->id ) | |
; | |
if ( $item->count() ) { | |
$item = $item->first(); | |
$fresh = $item->fresh(); | |
return $fresh->value; | |
} | |
else { | |
return null; | |
} | |
} | |
/** | |
* reformat value | |
* | |
* @param $value | |
* | |
* @return string|array | |
*/ | |
private function purifyValue ( $value ) | |
{ | |
$result = json_decode( $value , true ); | |
if ( json_last_error() == JSON_ERROR_NONE ) { | |
return $result; | |
} | |
else { | |
return $value; | |
} | |
} | |
/** | |
* save the key to database | |
* | |
* @param $key | |
* @param $value | |
*/ | |
private function saveToDatabase ( $key , $value ) | |
{ | |
$item = new UserAuthMetas(); | |
$item->class = $this->table; | |
$item->owner = $this->id; | |
$item->key = $key; | |
$item->value = $value; | |
$item->save(); | |
} | |
/** | |
* | |
*/ | |
public function getMetas () | |
{ | |
$metas = UserAuthMetas | |
::where( "class" , $this->table ) | |
->where( "owner" , $this->id ) | |
->orderBy( 'created_at' , 'desc' ) | |
->get() | |
->unique( 'key' ) | |
; | |
return $metas; | |
} | |
} |
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