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PORuby - Method call to object in array
 

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    <p>I'm working with a Ruby project for school, and have sadly not been able to find an answer to this question in my literature.</p> <p>I have an array of camping lots, each containing a guest. I initialize the lots like this: </p> <pre><code>lots = Array.new for i in (1..36) lots[i] = Lot.new(i) end </code></pre> <p>Further down I create a <code>Guest</code> object, initialize it, and now I want to add the <code>Guest</code> to my <code>Lot</code>. The method in the class <code>Lot</code> looks like this:</p> <pre><code>def AddGuest(guest) @guest = guest end </code></pre> <p>The problem comes when I want to call the method, as the <code>Lot</code> is in an <code>Array</code>.</p> <pre><code>lots[lotnumber].AddGuest(guest) </code></pre> <p>This call gives me the error:</p> <pre><code>undefined method `+@' for #&lt;Guest:0x2c1ff14&gt; (NoMethodError) </code></pre> <p>I have used require, so the classes know about each other. I've had quite a hard time understanding Ruby, could my error be that I try to access the <code>AddGuest</code> method in the <code>Array</code> class? I'm used to doing things like this in C++.</p> <p>Below is the full source (the relevant parts at least).</p> <p>Entire <code>Lot</code> class:</p> <pre><code>class Lot def initialize(number) @gauge = rand(2000) + 2000 @number = number @guest = false end def Occupied() return @guest end def AddGuest(guest) @guest = guest end def RemoveGuest() @guest = false end end </code></pre> <p>Parts of main.rb</p> <pre><code>#includes require 'guest' require 'lot' #initiate comparison variables userInput = "0" numberOfGuests = 0 foundLot = false guests = Array.new lots = Array.new #initialize lot list for i in (1..36) lots[i] = Lot.new(i) end </code></pre> <p>Player input omitted</p> <pre><code>#make sure lot is not taken while foundLot == false do lotnumber = rand(35)+1 if lots[lotnumber].Occupied() == false then foundLot = "true" end end foundLot = false guest = Guest.new(firstName, lastName, adress, phone, arrival, lotnumber) guests.insert(numberOfGuests, guest) numberOfGuests++ lots[lotnumber].AddGuest(guest) #this is where error hits end end end </code></pre>
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    1. COCan you post the full source? is the AddGuest method defined in the scope of a class?
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      1. USJason Miesionczek
    2. COIs it possible that you accidentally put AddGuest under private or protected?
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      1. USOri
    3. COJust FYI, you can create the lots more succinctly as `lots = (1..36).collect {|n| Lot.new n}`. Ruby eliminates a lot of explicit looping.
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      1. USChuck
 

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