How MVC works in magento [closed] - magento-1.4

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Closed 10 years ago.
Thanks for the previous replies.
I am new to Magento and don't know how MVC operates in this framework. I want to display "Hello world" using MVC format--i.e., the controller imports the string from the model and transmits it to the view for display. Can anyone give me an idea of how MVC works in Magento?

This Magento MVC flowchart may assist

you can take the magento basics course for free today http://www.magentocommerce.com/services/on-demand

As we know, the implementation of a “Tier Model” is a large part of an MVC framework. It represents the details of your application and handles data in applications. Magento Models play an even greater role, because they usually contain the “Business Logic”.
The Magento Object Relational Mapping (ORM) has very important role in the process of working with database. Here We will go deeply to understand ORM. You can follow:
Magneto Object Relational Mapping ORM
MVC Developers - Magneto Models and ORM Basics

The only thing different in Magento's MVC model that is different from other MVCs is the way it use Block.
In normal MVC, variables are passed to the View through Controller. However, in Magento, Views get data from Block, and Block gets its data from Model.

Related

How to construct multiple MVC in ios? [closed]

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Closed 9 years ago.
It's well known that MVC is the only pattern in iOS. Currently, I'm developing a project with multiple MVCs, I'm confused about organizing these MVCs.
Basically, I have a survey MVC and a Question MVC. The sequence of display for the survey is:
An interface for user to key in title and description of survey
User clicks next to show the question interface
User clicks the next button to show another question interface and so on.
I'm thinking to have one model for the survey and one model for question. But How can I link the survey model to Question as I need an array of question in the survey model, which means the survey model depends on question model?
Please help me on this, thanks so much!
Your descreption seems a bit loosy. what you're describing is a Single MVC system where you have multiple views to :
Display survey.
Display questions.
and multiple modules to represent :
Survey object.
Question object.
you can easily use a UINavigationController with two or more UIViewControllers to build such app.
I suggest you to take a look at apple's Your second iOS App tutorial which is similar to what you're describing.
Hope that helps

MVC 4.0 Show simple grid [closed]

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Closed 10 years ago.
I'm new to mvc, and i'm now trying to show a simple gridview which will be loaded from my sql server.
I can't even find the gridview in the toolbox.
i'm using the razor view engine.
example will be appreciated.
Thanks.
You mention mvc and toolbox. Those are incompatible concepts. You don't drag things out of the toolbox in MVC like you do in Web Forms. You type out various fields using html helpers.
While there is, in fact, a WebGrid available (quite a few actually), you would be better suited (at least initially) doing a manual table generation. Once you understand how it works, then you can move on to more advanced uses.
Any good MVC tutorial should have an example, such as MVC Music Store, or Nerd Dinner.

ViewModel in a masterpage? [closed]

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Closed 10 years ago.
I am using asp.net mvc 3.0 with razor.
I am wondering if I can make a view model for my master page. I have some dynamic data in my master page so I am going to probably have to make a "base class" for all my controllers but I rather have strongly typed data then View Data/ View Bag.
So can this be done?
You could have all of your view models inherit from a base view model, which would include all of your common fields.
Alternatively, you could use a Custom Action Filter that would put some object in the view data which your master page would always expect to be there. This action filter could also be used to fill in the common fields in your view model base class.
i would suggest using RenderAction rather than having a base viewmodel from which all your view models will inherit. i guess viewmodel that you want to use in your master page is most probably going to contain navigational data (menu or leftbar etc.). if this is the case, RenderAction places clean separation of concerns and you can cache the data used in this particular action after loading it for first time and your further request will then be served from cached data.

Best practices asp.net mvc: working with images [closed]

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Closed 11 years ago.
what are the best practices to process images in enterptices web applications.
I mean
storing
assign with entity
fast loading/caching
delayed / ajax loading
suitable format (png, jpeg)
on fly editing (resizing, compress)
free libs/helpers
image watermarking/copyrighting on fly
Especially, appreciated already production approaches!
As always, every project has their own requirements, restrictions and resources (The 3Rs). There is no 'super pattern' or 'one size fits all' method.
We cannot tell you how to implement you project as every project is different. It's up to you to use your skills/knowledge and experience to make informed decisions on implementation.
The 'best practice' is to individually research and learn each of the technologies/methods you have listed and gain the knowledge to know when to use them based on your projects requirements, restrictions and resources.
I use ImageMagickObject in my mvc projects. It can:
suitable format (png, jpeg)
on flyediting (resizing, compress)
freelibs/helpers image
watermarking/copyrighting on fly
fast loading/caching: may be memcached?
delayed / ajax loading: jquery is a good solution
assign with entity: Entity Framework can work with almost all databases
storing: hard question. all depend to the functionality

What is the diffrence between MVA and ASP.NET web form? [closed]

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Closed 9 years ago.
What is the diffrence between MVA and ASP.NET web form?
As your question is tagged with "asp.net-mvc" I will answer the following question...
What is the difference between MVC and
ASP.NET web forms?
State
I'm mentioning this one because I think it is one of the most important differences, a full list is provided in the link below.
An ASP.NET web form is stateful, it remembers stuff for you between "post backs". It makes the internet behave a little bit like a windows forms application. This is great if you are a forms developer moving into web development, but it breaks the natural behaviour of web pages.
ASP.NET MVC applications are stateless. They don't remember anything between pages. This is how web pages are supposed to work - each request should supply the required information for any action to be taken, all using the standard HTTP verbs as detailed here:
http://www.w3.org/Protocols/rfc2616/rfc2616-sec9.html
The Lowdown
Dino Esportivo has written a really detailed article on all of the subtle differences here:
http://msdn.microsoft.com/en-us/magazine/dd942833.aspx
Check the following links and find your answer Biggest Advantage to use asp.net MVC vs web forms and
Advantages and disadvantages to use asp.net MVC vs web forms and this
there are lots of discussion on such question you may call them debate also
thanks

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