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ModelBusiness logic goes hereViewPresentation logic goes hereControllerApplication logic goes hereHere's a typical bit of "controller" logic: sub add_product_to_order { my ( $dbh, $p_id, $o_id ) = @_; unless ( $o_id && $o_id =~ /^\d+$/ ) { dienice("Bad order number $o_id"); } my $o_sql = 'SELECT * FROM orders WHERE id = ?'; my $p_sql = 'SELECT * FROM products WHERE id
Hello all, I'm planning to program the logic of the application (the Model in MVC) previously to start with web page and the presentation.What is the best way to do it? ................ (some philosophical remarks :)) What I see is that what Catalyst calls Model is just the Objects that map with the tables in the DDBB. And the logic of the application are developed in the Actions (in fact linked t
Introduction The Model-View-Controller (MVC) Design Pattern is much heralded as the "Right Way" to build web applications. Although MVC is undoubtedly a valuable and useful way to architect such systems, I believe it goes far deeper than MVC alone. In this article, based on a post originally sent to the Template Toolkit mailing list, I suggest that a clear separation of concerns is what is really
Catalyst - Background Knowledge The Catalyst documentation presupposes certain background experience; if you have never had cause to acquire that experience, learning Catalyst can seem overwhelming. This page tries to give you enough of the background that you will be able to work through your initial encounters with Catalyst; it is not an exhaustive or authoritative source of information on any o
The article describes an implementation of Model-View-Controller software design pattern in JavaScript. Created classes conform to Dojo toolkit class building concepts: dojo.lang.declare creates classes and dojo.event.connect supports low coupling of MVC. I like programming with JavaScript, because it is the most flexible language in the world. With the JavaScript language developers can create ap
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Diagram of interactions within one possible take on the MVC pattern Model–view–controller (MVC) is a software design pattern[1] commonly used for developing user interfaces that divides the related program logic into three interconnected elements. These elements are: the model, the internal representations of information the view, the interface that presents information to and accepts it from the
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