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PORuby on Rails - updating multiple models from the one controller
 

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  1. PORuby on Rails - updating multiple models from the one controller
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    <p>I'm trying to get my head around saving to multiple models from the one controller and it's probably really simple but I can't figure it out.</p> <p>I have a User Model that has many <code>loanitems</code> and the <code>loanitems</code> belong to the user associations set up.</p> <p>In my <code>loanitems</code> controller I want each <code>loanitem</code> create action to update a the <code>user.points</code> </p> <p>So at the moment I have the following code that doesn't throw any errors but doesn't update the user model either.</p> <pre><code>def create @loanitem = current_user.loanitems.build(params[:loanitem]) respond_to do |format| if @loanitem.save @loanitem.user.points = @loanitem.user.points + 50 @loanitem.user.save format.html {redirect_to root_path, :flash =&gt; {:success =&gt; "Loan Item created" } } format.xml{render xml: root_path} else format.html {render 'pages/home' } format.xml {render xml: 'pages/home'} end end end </code></pre> <p>I'm also trying the following variation on a theme</p> <pre><code> def create @loanitem = current_user.loanitems.build(params[:loanitem]) respond_to do |format| if @loanitem.save current_user.points = current_user.points + 50 current_user.save format.html {redirect_to root_path, :flash =&gt; {:success =&gt; "Loan Item created" } } format.xml{render xml: root_path} else format.html {render 'pages/home' } format.xml {render xml: 'pages/home'} end end end </code></pre> <p>But should I be sending some message instead to the <code>userupdate</code> controller instead? That currently looks like this ...</p> <pre><code>def update @user = User.find(params[:id]) if @user.update_attributes(params[:user]) redirect_to @user, :flash =&gt; { :success =&gt; "Profile has been updated!"} else @title = "Edit Profile" render 'edit' end end </code></pre> <p>Or I have heard that the business logic really should all be contained in the model so maybe the method should be written in <code>User.rb</code> and then called by the <code>Loanitems</code> controllers create method? </p> <p>I know it's a real rookie question but any advice would be really welcome. </p>
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