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Thomas Krantz
Sep 7, 2009
  2313
(0 votes)

EPiCodeSmells

My thoughts on some code smells I’ve come across. These three are the ones that tend to turn my stomach the most.

Here goes..

Class properties for easy access to MainBody, MainIntro etc.

I often see a bunch of these duplicated in all templates, often disguised in a “#region Properties”, an obvious hint that I am in for a treat..

        public string MainBody 
        { 
            get 
            { 
                if(IsValue("MainBody")) 
                    return (string) CurrentPage["MainBody"]; 

                return String.Empty; 
            } 
        }
I have even seen code snippets in Visual Studio being used to generate these. This indicates the lack of sensible base classes. And if you want strongly typed Episerver properties, there are better ways.

Hardcoded ids in Web.config

When poking around a new project, one of the first things I generally do, is open up Web.config. I scroll down to the appSettings-element, and if I find 10+ custom keys, I can smell the lack of Admin tabs and/or Settings page.

Usually goes something like:

    <add key="ContactFormPage" value="12312" />
    <add key="ContactFormPageEN" value="54312" />
    <add key="ProductModulePageTypeId" value="93" />
    <add key="ModuleContactPageTypeId" value="38,39" />
    <add key="ModulePageTypeId" value="3" />
    <add key="MyCoolPageTypeId" value="42" />
    <add key="CalendarEventPageType" value="11" />
    <add key="DivisionStartPageTypeId" value="46" />
    <add key="404PageId" value="78781" />
    <add key="FileNotFoundPageId" value="12333"/>
    <add key="GenericErrorPageId" value="543"/>

Episerver comes with a “Pagetype” property type. Use it.

The Utils-class

Everyone got them. At least some version of it, duplicated from one project to another, tweaked and refactored along the way. It usually contains the all familiar StripHtml(), Ellipse(), PreviewText(), MyGetPropertyWithFallbackValue().

Not really a smell perhaps, but I sort it into the DRY category.

Thoughts anyone? I am sure you have experienced your fair share of smells, perhaps worse than mine…?

Sep 07, 2009

Comments

Sep 21, 2010 10:32 AM

I was worried you had found some smelly bits on EPiCode (http://www.coderesort.com/p/epicode). :-)

As for smelly code in general, I think I have seen more than is healthy. I guess it comes with the territory, as many web devs don't think about architecture, code quality and reusability. Getting the job done quickly is first priority.

Also, many newbies start with web development (and EPiServer), and are more concerned about why the html designer in Visual Studio does not work as well as shown on stage at the last Microsoft gig they attended. Not hardcoding page id's :-)

Thomas Krantz
Thomas Krantz Sep 21, 2010 10:32 AM

Yes wasn't it a witty headline? ;-)

Well many times it doesn't matter if the web dev thinks about quality and architecture, the project manager who rules the world doesn't care about things like that.

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