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POAdd dynamic methods to the class.methods array
 

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  1. POAdd dynamic methods to the class.methods array
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    <p>I am creating dynamic methods using the <strong>method_missing</strong> function. Its all working fine, but the thing i wanna do is, add these methods to <strong>ClassName.methods</strong> array. The code is as follows:</p> <pre><code>module MyObjectStore values = [] temp = {} def self.included(kls) kls.extend ClassMethods end ClassMethods = Module.new do define_method :method_missing do |method,*args,&amp;block| if method =~ /find_by_/ methods &lt;&lt; method add_search_method(method,*args) else values.send "#{method}", &amp;block end end define_method :add_search_method do |method,*args| values.each do |obj| x = obj.send "#{method.to_s.split('_')[-1]}" if x == args[0] p obj end end end end define_method :add_check_attribute do |method,*args| if method.to_s =~ /=$/ temp[method[0..-2]] = args[0] else instance_variable_get("@#{method}") end end define_method :method_missing do |method,*args| add_check_attribute(method,*args) end define_method :save do temp.each {|key,value| instance_variable_set("@#{key}",value)} values &lt;&lt; self end end class C include MyObjectStore end </code></pre> <p>i'm adding the new method to the methods Array. Its being added fine in here. The problem is, when i make a reference of class C, and try to find that newly added method, it returns nothing. i.e.</p> <pre><code>a = C.new a.id = 1 a.name = 'gaurav' a.save C.find_by_name('gaurav') p a.methods.include?(:find_by_name) </code></pre> <p>returns <strong>false</strong></p> <p>Is there a way i could go about doing this?</p> <p>Thanks in advance.</p>
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    1. USGaurav Manchanda
    1. USGaurav Manchanda
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      1. USAlok Swain
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    1. COthis has the feel of an overly-meta way of doing things to me - sure, rails does something like this, but that doesn't make it easily maintainable :). can you restructure your code to eliminate this problem? even if you find the "fix", it will still be hard to understand and maintain.
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      1. POAdd dynamic methods to the class.methods array
      1. USPeter
    2. COHey Peter, thanks for the response and even i feel the same about the overly-meta thing. But actually, this is one of my training exercises, i have to do it this way and code maintainence doesn't matter! :) So, do you think something like this is possible, or how i can restructure my code?
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      1. POAdd dynamic methods to the class.methods array
      1. USGaurav Manchanda
 

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