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    <p>(Not an answer.)</p> <p>I'm having problems reading your code. For example:</p> <pre><code>$schemes.has_key?(scheme_name.chop) ? scheme_exists = true : scheme_exists = false # Did you mean: scheme_exists = $schemes.has_key?(scheme_name.chop) </code></pre> <p>And:</p> <pre><code>if !scheme_exists $schemes[scheme_name.chop] = [] puts "Scheme #{scheme_name.chop} doesn't exist" else scheme_exists = true # ... </code></pre> <p>Why do you set <code>scheme_exists</code> to true? You just tested that it <em>wasn't</em> true.</p> <p>Your "scheme exists" looks a lot like your "module exists", if they're the same, make them the same. There is a lot of <code>chop</code>ping going on, perhaps you should just chop after input and stop chopping everywhere else&ndash;it seems error-prone and adds a lot of noise.</p> <p>Overall I find it difficult to reason about your code without actually stepping through it. I'd recommend refactoring, making things read "out loud" like the problem you're trying to solve.</p> <p>We also don't know if anything else touches <code>$schemes</code>. Whether or not you "should" be using a database depends <em>entirely</em> on your goals, your constraints, how you're running the app, etc. You could also serialize YAML, write a plain text file, all sorts of things.</p> <p>If you restart/rerun the app you'll obviously lose all your data that isn't persisted. If you stay within the app the whole time, then it's likely either the code or your assumptions are wrong, but it's an onerous task for someone to look over the code and determine because of the way it's structured and named.</p>
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    1. CORe. the first part of code- `$schemes` is the array where I've stored the schemes that were added when the user called the 'add module' method. If the scheme has not already been added- I need to let the user know, as there's no associated module to remove, else (i.e. if the scheme has already been added), then I need to ask the user which module associated with that scheme they want to remove.
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    2. CORe. the second part of code- `scheme_exists` is similar to `module_exists` , only that it is checking whether the scheme exists, as opposed to whether the module exists... schemes and modules being two different things.
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    3. CO@Someone2088 The code is identical, only the map is different. Same code. You don't necessarily need to believe or understand what I'm saying, but ultimately if you want others to be able to read your code, you'll need to change things up a fair amount. It's really quite difficult to grok at the moment.
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