What is polymorphic relationship database?
Polymorphic association is a term used in discussions of Object-Relational Mapping with respect to the problem of representing in the relational database domain, a relationship from one class to multiple classes. In statically typed languages such as Java these multiple classes are subclasses of the same superclass.
What is laravel morph?
A new undocumented feature in laravel 5.2 was introduced: The Morph Map for morphTo relations. We all know the polymorphic relations, they are a type of relation to link multiple models with one common model. For instance if you have a User and a Blog Post model, both of these can have a “Picture” relationship.
What is polymorphic relationship in Salesforce?
A polymorphic relationship is a relationship between objects where a referenced object can be one of several different types. For example, the Who relationship field of a Task can be a Contact or a Lead. The following describes how to use SOQL queries with polymorphic relationships in Apex.
What are polymorphic models?
A polymorphic model is used when a single entity requires different functionality or information. In the examples above, all events are logged for future use, but they can contain different data. All users need be able to log in, but they might have different profile structures.
What is polymorphic association in SQL?
The indications that the Requirements create a situation where someone might try to use a Polymorphic Association are: There are several entities which are sufficiently similar that you consider having one entity, but are sufficiently different that you think multiple entities are justified.
What is polymorphic relationships in laravel?
Laravel Polymorphic Relationship allows a model to belong to more than one other model on a single association. There are three types of Polymorphic relationships in Laravel.
What is the purpose of polymorphism?
Polymorphism allows us to perform a single action in different ways. In other words, polymorphism allows you to define one interface and have multiple implementations. The word “poly” means many and “morphs” means forms, So it means many forms.