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POIn Rails should objects be limited to those that will have a view and controller?
 

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    <p>I've been struggling with a design problem, and I admit that I am new to both OOP and RoR so I'm sure this is going to be very basic. I have an application where I am reading from text files in various formats in order to parse information related to hands of poker. So what I have are three entities:</p> <ul> <li><p>A file object. This stores the name and path of the file and some other attributes, and has functions related to reading from the files. This is MVC because I can add a file and have it be auto-updated, or I can just parse the info from a file on the fly.</p></li> <li><p>The poker hand object. This essentially just stores information about who played the hand of poker and what the actions and results were.</p></li> <li><p>A parser. This reads external JSON files with different regex patterns depending on the type of file that is being read. It also has some basic state machine info in the JSON file so that alot of the logic is removed from the parser. </p></li> </ul> <p>So my initial feeling about the parser was that it should be its own object. But then I realized that it didn't have a V or a C and so possibly didn't fit with the Rails way of doing things. And it also doesn't have any functionality that is needed by any object other than the file object, and so seemed to fit within the file. But at the same time it's so distinctly different than a file object, that it didn't seem to fit. I thought of a module, but the point of modules seems to be if multiple objects share the need for some functions, and in this case only the file does.</p> <p>So should it be its own object, be within the file object, or is there some other alternative I'm not seeing?</p>
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    1. COIt does not belong to a file object but you can add it as class function in the model for the file object. i.e. if Document is the model of file obect, you can define `self.parse_info(info)` in the Document model, so that you can call it like `Document.parse_info(json_string)`. It will be a class method, not an instance method.
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      1. USrubyprince
    2. COSorry, I can understand having the parsing methods be part of the File class, and that they would be separate from a File instance. But I don't understand where the Document model is coming in. Are you assuming that File should be a inherited from a Document? Why would parsing make more sense in relation to a Document than a File, and would it be worth having a Document class just to remove the parsing from the File class? I appreciate the advise, but am just trying to understand..
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    3. COI was assuming that you will have a model named `Document`(or whatever you want) to represent your files with attributes name, path of the file etc. `Document` is just a name I gave to the model.
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