Magento example of an instantiated object in a CSV table upload

app\code\core\mage\dataflow\model\convert\parser\csv.php

The file is a background upload csv, inserted into the Dataflow_batch_import relay table code, has the following code snippet

1. $batchModel = $this->getbatchmodel ();

2. $batchModel->setparams ($this->getvars ())
->setadapter ($adapterName)
->save ();

Looking down from above,

The first line $this->getbatchmodel ();

Find the corresponding file

app\code\core\mage\dataflow\model\convert\parser\abstract.php

/**
* Retrieve Batch Model Singleton
*
* @return Mage_dataflow_model_batch
*/
Public Function Getbatchmodel ()
{
if (Is_null ($this->_batch)) {
$this->_batch = Mage::getsingleton (' Dataflow/batch ');
}
return $this->_batch;
}

Call the Mage::getsingleton method, and then continue to find the corresponding class

app\mage.php

/**
* Retrieve Model Object Singleton
*
* @param string $modelClass
* @param array $arguments
* @return Mage_core_model_abstract
*/
public static function Getsingleton ($modelClass = ", array $arguments =array ())
{
$registryKey = ' _singleton/'. $modelClass;
if (!self::registry ($registryKey)) {
Self::register ($registryKey, Self::getmodel ($modelClass, $arguments));
}
Return Self::registry ($registryKey);
}

The discovery will eventually call this class in the Getmodel () method

public static function Getmodel ($modelClass = ", $arguments = Array ())
{
Return Self::getconfig ()->getmodelinstance ($modelClass, $arguments);
}

Call this class GetConfig ()

/**
* Retrieve a config instance
*
* @return Mage_core_model_config
*/
public static function GetConfig ()
{
return self::$_config;
}

Returns an object of Mage_core_model_config, and calls Getmodelinstance ()

The corresponding file is: app\code\core\mage\core\model\config.php

/**
* Get Model class instance.
*
* Example:
* $config->getmodelinstance (' catalog/product ')
*
* would instantiate mage_catalog_model_mysql4_product
*
* @param string $modelClass
* @param array|object $constructArguments
* @return Mage_core_model_abstract|false
*/
Public Function getmodelinstance ($modelClass = ", $constructArguments =array ())
{
$className = $this->getmodelclassname ($modelClass);
if (class_exists ($className)) {
Varien_profiler::start (' core::create_object_of:: '. $className);
$obj = new $className ($constructArguments);
Varien_profiler::stop (' core::create_object_of:: '. $className);
return $obj;
} else {
return false;
}
}

Will determine if the class exists, and the new one will not exist.

The passed parameter is Dataflow/batch

Will call Getmodelclassname to determine if there is a

Public Function Getmodelclassname ($modelClass)
{
$modelClass = Trim ($modelClass);
if (Strpos ($modelClass, '/') ===false) {
return $modelClass;
}
return $this->getgroupedclassname (' model ', $modelClass);
}

You can see that if there is a slash, it means that this class is not instantiated and will be new

Return to Mage_dataflow_model_batch class

At this point the first line of code ends and the corresponding object is obtained

The second line calls $batchmodel->setparams ()

Apparently it's going to go to the app\code\core\mage\dataflow\model\batch.php file.

/**
* Set Additional params
* Automatic Convert to serialize data
*
* @param mixed $data
* @return Mage_dataflow_model_batch_abstract
*/
Public Function SetParams ($data)
{
$this->setdata (' params ', serialize ($data));
return $this;
}

Discovery Call SetData () method

This class does not, go to his father's class to find

Class Mage_dataflow_model_batch extends Mage_core_model_abstract

app\code\core\mage\core\model\abstract.php

Found no, he inherited the

Abstract class Mage_core_model_abstract extends Varien_object

Find the corresponding core class

lib\varien\object.php

Found it

/**
* Overwrite data in the object.
*
* $key can be string or array.
* If $key is string, the attribute value would be overwritten by $value
*
* If $key is an array, it'll overwrite all the data in the object.
*
* @param string|array $key
* @param mixed $value
* @return Varien_object
*/
Public Function SetData ($key, $value =null)
{
$this->_hasdatachanges = true;
if (Is_array ($key)) {
$this->_data = $key;
$this->_addfullnames ();
} else {
$this->_data[$key] = $value;
if (Isset ($this->_syncfieldsmap[$key])) {
$fullFieldName = $this->_syncfieldsmap[$key];
$this->_data[$fullFieldName] = $value;
}
}
return $this;
}

Magento example of an instantiated object in a CSV table upload