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PORails syntax Passing POST parameters from a form to a controller
 

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  1. PORails syntax Passing POST parameters from a form to a controller
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    <p>I'm new to Rails (and fairly new to programming in general) and I am building a web app for myself as a way to learn. Right now I am modifying scaffolded forms and such. </p> <p>My question is with the "create" method in one of my controllers. There are two entities I am concerned with: the User table and the Habit table. I created a dropdown box in the _form partial for the Habit views to allow a person to select a user from a list of all available when creating a habit as below</p> <pre><code>&lt;%= collection_select :user, :id, @users, :id, :first_name %&gt; </code></pre> <p>The habit controller, of course, has</p> <pre><code>def new @users = User.all ... end </code></pre> <p>This works fine, and when the form submits it posts two hashes of parameters :habit and :user. Now, when I want to process the form input in the create method, I'm not sure how to use the syntax correctly and assign the user_id to the newly create habit. What I WANT to do is something like this</p> <pre><code>def create @habit = Habit.new(params[:habit], params[:user]) end </code></pre> <p>This, of course, is improper syntax. </p> <pre><code>def create @habit = Habit.new(params[:habit]) end </code></pre> <p>assigns the params from the :habit hash correctly, but then the user_id is left unset.</p> <p>What works is the following, but the code is very lengthy, assigning each value manually.</p> <pre><code>def create @habit = Habit.new(:user_id =&gt; params[:user][:id], :description =&gt; params[:habit][:description], :habit_method =&gt; params[:habit][:habit_method], :time_reqd =&gt; params[:habit][:time_reqd], :will_reqd =&gt; params[:habit][:will_reqd], :active =&gt; params[:habit][:active]) end </code></pre> <p>So my question is, when dealing with a form that posts data in multiple hashes, what is the proper way to pass those parameters into some method in a controller?</p>
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