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PORemoving the :has_many when the :belongs_to is updated/destroyed if the :has_many is now empty
 

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  1. PORemoving the :has_many when the :belongs_to is updated/destroyed if the :has_many is now empty
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    <p>I have states who have many cities (belongs_to :state) who have many businesses (belongs_to :city). State also… has_many :businesses, :through => :cities</p> <p>On my site everything is managed from the Business perspective. When a new Business is created/updated the state/city is created if it doesn't already exist. This happens in a :before_save call.</p> <p>I'm having problems removing States/Cites when a Business gets updated. If the state/city that a business is in gets changed (again this happens from an edit business form) and the old state/city no longer has any businesses I want to destroy it. I've tried doing this in after_save calls but they're wrapped in a transaction and even if I assign variables to the names of the old state/city, they seem to get changed to the new state/city sometime during the transaction. It's crazy! I used "puts" calls to print the vars in some spots in my Business model and watched the vars change during a save. It was frustrating.</p> <p>So, right now I'm handling this from the controller but it feels hackish.</p> <p>Here's some of my code.</p> <p><a href="http://pastie.org/648832" rel="nofollow noreferrer">http://pastie.org/648832</a></p> <p>Also, I'd love any input on how better to structure this whole thing.</p> <p>Thanks</p>
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    1. USkjs3
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