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POHow to use params in another action?
 

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  1. POHow to use params in another action?
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    <p>Im trying to do a little Restaurant-Website in Ruby on Rails(v. 3.2.13).</p> <p>I made 3 tables: Customer(Name,Email), Reservation(customer_id,table_id), Table(seats,area).</p> <p>My Models look like this.</p> <pre><code>class Reservation &lt; ActiveRecord::Base belongs_to :customer belongs_to :table end class Customer &lt; ActiveRecord::Base has_many :reservations has_many :tables, :through =&gt; :reservations end class Table &lt; ActiveRecord::Base has_many :reservations has_many :customers, :through =&gt; :reservations end </code></pre> <p>I made a form for searching a suitable table. If the customer finds his table, he clicks a button to book it. This button leads to the "add a new customer" view. The button looks like this:</p> <pre><code>&lt;%= button_to "Book table #{table.id}" , customers_path(:table_id =&gt; table) %&gt; </code></pre> <p>In the <code>CustomerController</code>, I edited the create method like the following:</p> <pre><code>def create @customer = Customer.new(params[:customer]) table = Table.find(params[:table_id]) respond_to do |format| if @customer.save format.html { redirect_to @customer, notice: 'Customer was successfully created.' } format.json { render json: @customer, status: :created, location: @customer } @reservation = @customer.reservations.build(table: table).save! else format.html { render action: "new" } format.json { render json: @customer.errors, status: :unprocessable_entity } end end end </code></pre> <p>Sadly the "Table.find" does not work. When I use "Table.first" a Reservation is added, but when I use table like above I get the message: "Couldn't find Table with id=". I can, however, display the ID on the NewCustomer view.</p> <p>Why is the ID not available in the <code>create</code> method?</p> <p>EDIT:</p> <p>Here is the form of the mainpage to search a table. Furthermore I have to say that i made a new resource mainpage for the table-search.</p> <pre><code>&lt;%= form_tag mainpages_path, :method =&gt; 'get' do %&gt; &lt;p&gt; How many persons: &lt;br/&gt;&lt;%= number_field_tag(:search) %&gt; &lt;br/&gt; Date: &lt;%= date_select :date, 'Date', use_short_month: true, order: [:day, :month, :year] %&gt; &lt;br/&gt; Beginn: &lt;%= time_select :Beginn, 'Beginn' , default:Time.now %&gt; &lt;br/&gt; End : &lt;%= time_select :Ende, 'Ende' , default: Time.now + 2.hours %&gt; &lt;br/&gt; &lt;%params[:search]%&gt; &lt;%= submit_tag "Search" %&gt; &lt;/p&gt; &lt;% end %&gt; &lt;% if @tables %&gt; &lt;h2&gt;Folgende Tische stehen zur Auswahl&lt;/h1&gt; &lt;% @tables.each do |table| %&gt; &lt;div class="entry" &gt; &lt;h3&gt;Seats: &lt;%= table.seats %&gt;&lt;/h3&gt; &lt;h3&gt;Area: &lt;%= table.area %&gt;&lt;/h3&gt; &lt;%= link_to "Book this table #{table.id}" , new_customer_path(:table_id =&gt; table) %&gt; &lt;/div&gt; &lt;% end %&gt; &lt;% else %&gt; &lt;p&gt; Pls choose a table&lt;/p&gt; &lt;% end %&gt; </code></pre> <p>EDIT2: The link to HTML-Code:</p> <pre><code>&lt;a href="/customers/new?table_id=1" mode="post"&gt;Book this table 1&lt;/a&gt; </code></pre> <p>And here is the HTML-Code of the customer/new-view:</p> <pre><code>&lt;!DOCTYPE html&gt; &lt;html&gt; &lt;head&gt; &lt;title&gt;Restaurant&lt;/title&gt; &lt;link href="/assets/application.css?body=1" media="all" rel="stylesheet" type="text/css" /&gt; &lt;link href="/assets/customers.css?body=1" media="all" rel="stylesheet" type="text/css" /&gt; &lt;link href="/assets/mainpages.css?body=1" media="all" rel="stylesheet" type="text/css" /&gt; &lt;link href="/assets/reservations.css?body=1" media="all" rel="stylesheet" type="text/css" /&gt; &lt;link href="/assets/scaffolds.css?body=1" media="all" rel="stylesheet" type="text/css" /&gt; &lt;link href="/assets/tables.css?body=1" media="all" rel="stylesheet" type="text/css" /&gt; &lt;script src="/assets/jquery.js?body=1" type="text/javascript"&gt;&lt;/script&gt; &lt;script src="/assets/jquery_ujs.js?body=1" type="text/javascript"&gt;&lt;/script&gt; &lt;script src="/assets/customers.js?body=1" type="text/javascript"&gt;&lt;/script&gt; &lt;script src="/assets/mainpages.js?body=1" type="text/javascript"&gt;&lt;/script&gt; &lt;script src="/assets/reservations.js?body=1" type="text/javascript"&gt;&lt;/script&gt; &lt;script src="/assets/tables.js?body=1" type="text/javascript"&gt;&lt;/script&gt; &lt;script src="/assets/application.js?body=1" type="text/javascript"&gt;&lt;/script&gt; &lt;meta content="authenticity_token" name="csrf-param" /&gt; &lt;meta content="ej1MgV2fad014SLkCv3dZXl8TknQH4JHZLoe56Xn/Kk=" name="csrf-token" /&gt; &lt;/head&gt; &lt;body&gt; &lt;h1&gt;New customer&lt;/h1&gt; &lt;form accept-charset="UTF-8" action="/customers" class="new_customer" id="new_customer" method="post"&gt;&lt;div style="margin:0;padding:0;display:inline"&gt;&lt;input name="utf8" type="hidden" value="&amp;#x2713;" /&gt;&lt;input name="authenticity_token" type="hidden" value="ej1MgV2fad014SLkCv3dZXl8TknQH4JHZLoe56Xn/Kk=" /&gt;&lt;/div&gt; &lt;div class="field"&gt; &lt;label for="customer_name"&gt;Name&lt;/label&gt;&lt;br /&gt; &lt;input id="customer_name" name="customer[name]" size="30" type="text" /&gt; &lt;/div&gt; &lt;div class="field"&gt; &lt;label for="customer_email"&gt;Email&lt;/label&gt;&lt;br /&gt; &lt;input id="customer_email" name="customer[email]" size="30" type="text" /&gt; &lt;/div&gt; &lt;input id="table_id" name="table_id" type="hidden" /&gt; &lt;div class="actions"&gt; &lt;input name="commit" type="submit" value="Create Customer" /&gt; &lt;/div&gt; &lt;/form&gt; &lt;a href="/customers"&gt;Back&lt;/a&gt; &lt;/body&gt; &lt;/html&gt; </code></pre>
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    1. COWhat are the routes for customers in routes.rb?
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      1. USAndy
    2. COjust ` resources :customers `
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    3. CO@Mike just do 'rake routes' at the root of your application, and paste the output here.
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      1. POHow to use params in another action?
      1. USSachin Singh
 

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