The Evolution of MVC Architecture and the Web
How was once MVC Architecture applied previously?
In the previous, all 3 elements of MVC Architecture, the fashion, view, and controller, resided on the net server (see the determine beneath).
Old MVC Architecture Implementation:
When a request was once made to the internet server, the controller made up our minds what web page the consumer must be directed too, what information to tug from the knowledge server, learn how to construct the fashion, and learn how to construct the view. Once the view was once created, HTML would then be generated and despatched again to the buyer system as a reaction. This was once the deadly flaw of internet packages previously. Unlike desktop packages, if customers had to have interaction with the interface, the applying must reload all the web page, as a result of the entire elements of the MVC structure had been caught on the net server.
This is why AJAX was once born in 1995. Ajax allowed customers to relatively have interaction with a internet software’s interface significantly better than earlier than, as a result of person requests may well be made to the internet server, which might then in flip reply with new information to replace portions of the webpage with out reloading the entire web page. AJAX nonetheless wasn’t an ideal answer on the other hand, as a result of each consumer interplay nonetheless needed to make separate requests to the internet server.
How is MVC Architecture applied these days?
Once the internet global started to embody AJAX, a brand new motion started to spread referred to as RIAs. With this fashion, the consumer can have a wealthy software enjoy with out making requests to the internet server with every motion since the view part of the MVC structure is living within the consumer (see the determine beneath)
New MVC Architecture Implementation:
This is a huge deal as it signifies that we’re rethinking how MVC structure is applied for internet packages.
Here’s an instance. Let’s say that you’re the usage of a internet software that presentations information. You input some inputs, press “Enter”, and the internet software sends a request to the internet server. The controller then will get the suitable information from the knowledge server, creates a fashion of that information, and sends it again to the buyer by the use of JSON. The consumer receives the JSON and replicates the fashion as local items. If the consumer desires to peer this knowledge as a pie chart, the local fashion can be utilized to generate a pie chart (which is a view) with out creating a request to the server. Likewise, if the consumer desires to peer the knowledge as a bar graph, the local fashion can be utilized to generate a bar graph, once more with out creating a request to the server. All of that is completed with out reloading the web page, and just one request was once made to the internet server.
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