Mage::getModel(): It creates a new object.
Mage::getSingletone(): It first checks the existence of object and if object doesn?t exist, then it creates a new one.
In Magento, both Mage::getModel() and Mage::getSingleton() are methods used to instantiate objects, but they serve different purposes:
- Mage::getModel():
- This method is used to create a new instance of a model class.
- Every time
Mage::getModel()is called, a new instance of the specified model class is created. - It’s commonly used when you need multiple instances of a model within the same request, or when you want to instantiate a model to perform operations on a specific entity, like a product or customer.
- Mage::getSingleton():
- This method is used to create a single instance of a class and then returns that same instance for subsequent calls.
- If the specified singleton instance doesn’t exist, it creates one; otherwise, it returns the existing instance.
- It’s useful when you want to ensure that only one instance of a particular class exists throughout the application, such as for global settings, configurations, or resource-intensive objects that you want to share across different parts of your codebase.
Correct Answer:
Mage::getModel()is used to instantiate a new object of a model class, creating a new instance each time it’s called.Mage::getSingleton()is used to instantiate a singleton object, ensuring that only one instance of the class exists and returning that instance on subsequent calls.
Here’s a simple analogy:
Mage::getModel()is like ordering a new meal from a restaurant each time you’re hungry.Mage::getSingleton()is like having a loyalty card at a coffee shop; you get the same cup of coffee every time you visit, and it’s the same cup that everyone with the same loyalty card gets.