MVC (Model-View-Controller) is a software architecture pattern that enforces separation of concerns.

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Trying to understand 3 layer programming [closed]

I am confused to understand the structure of a 3 layer programm. Where is good place for exceptions, entity and etc.? If I use MVC, in my UI model, how to transfer entity class to model class and ...
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Why should I adopt MVC? [duplicate]

I decided to get my hands wet and got the YII framework for PHP. I created my first application, then created new controller, model and view. Connected to database, got my record passed from ...
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Design pattern for complex view creation in sheet music

I've got a bunch of Note-Models with properties like pitchand duration. In music notation, these notes must now be placed into a certain bar on a certain line on a certain page, and so on. Many more ...
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Is it okay to call a model method in my view?

In the interest of keeping my Controller's skinny, I put a headline method in a Model. # My Model class Property def headline "#{name} | #{address}" end end (Then, Property Controller for ...
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Testing MVC models when using SQL referential constraints

I have an MVC web app that's wired against PostgreSQL. The DB uses the full gamut of various referential constraints to ensure referential integrity, as opposed to say the Rails approach, where you ...
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Java generalization

I have a question regarding generalization. I know when it is needed to be done, but is it worth having an extra class for 1 field? e.g.: StatisticsCustomer has fields: Customer customer and int ...
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mvc pattern - splitting model into data-access and business logic layers

I've had a chance to try it out and I like it very much. I'm thinking of using it in all of my future projects. I'd like to hear some critique and opinions about it. I've done a little research on the ...
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1answer
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Creating a System Sequence Diagram from an [extended] use case

As I have been taught - one controller = one use case. But I have: OutsiderController SupplierController (which extends OutsiderController) SubContractorController (which also extentds ...
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Do I need JUnit tests for the controller layer on a MVC when I have a database layer

I have a MVC which has this structure: ui controller db model Basically the controller doesn't really do much more than connection ui with db layer. Do I need to provide JUnit tests for the ...
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Architecture For Mockable DAL On Large Projects

I have recently been reading an article about creating a blog using ASP.NET and MVC, and in the article the user splits the Data Access Layer into a separate Class Library, and creates an interface ...
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Where should I put my method

I am writing a Java program using the MVC design pattern. I have classes Item and Supplier. In the database they are connected through a item_supplier table. I'm writing a method which will give me ...
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486 views

MVC pattern with JSF-Spring-MyBatis webapp

I've a Java webapp with these frameworks and I want to know if my implementation meets with MVC pattern: Controller Layer (V) I'm using JSF @ManagedBean public class Controller{ ...
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In MVC is it considered good practice to have private, non-action, functions in a controller class?

Sometimes action functions in the controller class can become huge and nasty, with many-many lines of code to simply control the flow of data from the Model to the View. At some point these huge ...
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Why is it a good idea for “lower” application layers not to be aware of “higher” ones?

In a typical (well-designed) MVC web app, the database is not aware of the model code, the model code is not aware of the controller code, and the controller code is not aware of the view code. (I ...
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Java MVC extra classes

I have a simple MVC project. My current packages: gui controller db domain I want to put extra classes which I will use, e.g. md5 hashing, email validator (methods which I will use in more than ...
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how to map controllers , models, and views as a todo list

Before starting on a current project I was wondering if there is a terminology for what I am planning on doing? Basically what I want to do is map out every object in layers such as all the ...
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How to persist temporary data over multiple HTTP requests?

In our webapplication we have a list of questions that have to be answered by the user. These questions are served to the user one by one and will be saved once the last question has been answered. ...
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4answers
386 views

Is XML, HTML/CSS, XSL analogous to Model, View, Controller?

For some time in personal projects I have been using XSL to convert my raw XML data into human-friendly HTML/CSS (in simple projects, I have no JavaScript, so let's leave that out of the equation for ...
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2answers
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MVC framework that uses classes instead of methods for actions

In most MVC frameworks, Controller class contains multiple methods, each representing one action. Then annotations and reflection is used to call those methods appropriately. But from OOP point of ...
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ViewController in programming

ViewController is a term for classes that handle views in a framework. This is especially used in MVC frameworks. I go through various projects, written by various programmers, who implement MVC in ...
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MVC View Question

In my PHP web page (index.php), I have a simple script that calls a "page" class, and then builds the page from it. Index.php executes methods within an instance of the 'page' class, such as ...
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75 views

Services in Model Layer

I understand services should have no state and no business logic. How can you implement a service like AuthentificationService considering these rules? All the methods in a service should be ...
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2answers
563 views

Search and Replace in MVC

What would be a good MVC/OOP/GRASP/SOLID structure for a search/replace functionality. Methods: search/searchNext/replace/replaceAll. I'm interested only in the PHP arhitecture and how a professional ...
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1answer
124 views

MVC URL formatting/design

In refactoring a lot of MVC code, I have run into an issue with my URL design. For example, let's say we have a Venue object public class Venue { public long ID { get; set; } public ...
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Javascript Architectural Model

Are there any obvious flaws to this OO architectural model which I intend to implement using javascript? It is similar to the MVP model but instead the role of the model is broken down into three ...
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129 views

Controller JSP - no view

Most people say do not use JSPs. But what if I have a JSP that does not show anything, it only acts as a controller? Why would I do that? Because we do not need to redeploy complete webapp to make a ...
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1answer
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Which design pattern is typically used when designing a WCF data services driven Winforms application?

Please excuse me as I am a bit new to the following technologies and practices. I have been given the task to create a management suite utilizing an MDI GUI. This suite will be the front end to a WCF ...
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1answer
491 views

Is there a factory pattern to prevent multiple instances for same object (instance that is Equal) good design?

I have a number of objects storing state. There are essentially two types of fields. The ones that uniquely define what the object is (what node, what edge etc), and the others that store state ...
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MVC : Does Code to save data in cache or session belongs in controller?

I'm a bit confused if saving the information to session code below, belongs in the controller action as shown below or should it be part of my Model? I would add that I have other controller methods ...
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MVC shared model different required fields on different type

I have a model called Car and depending on what type of Car the user select the view is presented differently. For example the user selects from a grid of different cars and depending if it is a Volvo ...
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How to design an application that read files using MVC pattern?

I am going to write an application that reads data from a csv file, and display that data to the user. I intend to apply an MVC design pattern to create this application. A user will interact with ...
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Is this an MVC framework?

I have built a framework for my applications that has been working well, and I have always referred to it in my mind as an MVC. However, after reading some more on what an MVC is (not that I didn't to ...
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Is it 'safe' to expect myClasses to agree not to only call package Scope methods from other Package scope methods?

The questions says it all, but a quick overview of the situation. I'm creating a Model which contains classes (all inherriting myObject) which have a large amount of interconnection. I want the ...
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Most MVC-strict php framework

I have been trying to wrap my head around MVC pattern for about 6 months.I've read tons of articles, Q&A, and blog posts about MVC and HMVC patterns, but I just simply don't get it 100%. I tried ...
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710 views

Is MVC the optimal pattern to build a RESTful web service?

Not being a Java practitioner, I recently came to learn about the JAX-RS specification and Apache CXF framework. While still wrapping my head around all these things, I also read the this question on ...
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Is MVC ever considered/applied system-wide?

I was having a discussion with a colleague and he bought up the topic of MVC and the use of ViewModels in ASP.NET MVC. The discussion was that, in an n-layer architecture, the UI, Business Layer and ...
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1answer
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Should website frontends be rendered in client-side or server-side?

I've been talking to a colleague that comes from AS3 to the HTML world. He has created a small website (there are apparently no dynamic contents) following the no-flash rules for his very first time, ...
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Where's the separation between Presentation and Logic in Javascript MVC frameworks?

I had learned that following piece of code is bad because it is obstrusive javascript and mixes presentation with logic: <a href="" onclick="archive()">archive</a> The best practice was ...
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Service as a Model in MVC

I have a PHP MVC application and a file table. I need to implement the functionality: mark all as read. The best solution for the code I found so far was to put the actual implementation in a ...
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What should be in my model and what should be in my controler?

We are writing a system with a sort of quasi-MVC structure (it was never stated as that, but that's what it is). I'm building up a full knowledge of the system and the controller will have to make ...
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Models structure in PHP/MVC

I have some classes that are composed with ORM generated Models. example1: For example the Report.php (Model) is using a Document.php Model generated with ORM. Based on the document object a report ...
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Communication between View and Model

I have a basic issue with the MVC architecture. I am aware that the View usually listens to the Model. But how are user requests propagated to the Model? Currently I do it like this, when the user ...
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189 views

Ambiguous use of “Controller” in MVC

I have heard two separate uses for the term controller when speaking of the Model View Controller methodology. An intermediary section of code that communicates between the Model and View, tying ...
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The Service class in MVC

From time to time I find there is a need to build a service class. Something I can't really attach inside a model in order to respected GRASP and SOLID. So I created a class called ...
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Architectural questions regarding, MV** frameworks, NoSQL data models, and gradual refactoring

I have a web app I would like to gradually refactor by adding structure to it. I have narrowed down the options to Backbone (with some plugins), Ember.js and AngularJS My goal is to refactor that ...
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217 views

method to allow me ability to freely modify my classes, but make them immutable to others?

I am creating the model part of an MVC architecture. My one class will provide all the accesses to allow one to fetch system state. I want most of this state to be immutable as it shouldn't be ...
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What is a good technique to prevent unauthenticated users from accessing controller methods?

I have an event(s) controller: class Event extends CI_Controller{ public function index(){ } public function foo(){ } //Shouldn't be able to use this method unless logged in ...
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Why is using named routes for generating outbound URLs a violation of Separation of Concerns?

What is separation of concerns? In computer science, separation of concerns (SoC) is the process of breaking a computer program into distinct features that overlap in functionality as little ...
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ASP.NET MVC Web Site & WCF Web Service - Sharing functionalities

I have the following situation: I have to create a website and a web service that will share a part of the functionalities. This is why I do not want to write code twice. I have thought of the ...
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675 views

Problems for Sample Code [closed]

I was recently asked to write some sample code that solves a difficult technical problem. I've been mulling over what kinds of problems might be good to solve in code to demonstrate my skills in such ...