Databases
StackOverflow2013
Postsdbo
POHow to create a parent model through a child controller in rails 3? (belongs_to association)
 

Note that there are some explanatory texts on larger screens.

plurals
  1. POHow to create a parent model through a child controller in rails 3? (belongs_to association)
    primarykey
    data
    text
    <p>I have two resources: Topics and Posts. I am trying to figure out how I can create a Topic through the Post controller. The models look like this:</p> <pre><code>class Topic &lt; ActiveRecord::Base has_many :posts, :dependent =&gt; :destroy validates :name, :presence =&gt; true, :length =&gt; { :maximum =&gt; 32 } attr_accessible :name end class Post &lt; ActiveRecord::Base belongs_to :topic, :touch =&gt; true has_many :comments, :dependent =&gt; :destroy accepts_nested_attributes_for :topic attr_accessible :name, :title, :content, :topic end </code></pre> <p>posts/_form.html.erb:</p> <pre><code>&lt;%= simple_form_for @post do |f| %&gt; &lt;h1&gt;Create a Post&lt;/h1&gt; &lt;%= f.input :name, :label =&gt; false, :placeholder =&gt; "Name" %&gt; &lt;%= f.input :title, :label =&gt; false, :placeholder =&gt; "Title" %&gt; &lt;%= f.input :content, :label =&gt; false, :placeholder =&gt; "Content" %&gt; &lt;%= f.input :topic, :label =&gt; false, :placeholder =&gt; "Topic" %&gt; &lt;%= f.button :submit, "Post" %&gt; &lt;% end %&gt; </code></pre> <p>posts_controller.rb#create:</p> <pre><code>def create @post = Post.new(params[:topic]) respond_to do |format| if @post.save format.html { redirect_to(@post, :notice =&gt; 'Post was successfully created.') } else format.html { render :action =&gt; "new" } end end end </code></pre> <p>With posts/_form.html.erb I can create posts, but an associated topic is not created along with it. Can anyone tell me why I get this behavior and possibly how to correct it? I'm using Ruby 1.9.2, Rails 3.0.7 and the simple_form gem.</p>
    singulars
    1. PO
      singulars
      1. PTAnswer
    1. This table or related slice is empty.
    1. PTQuestion
    1. This table or related slice is empty.
    1. USBasicObject
    plurals
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. PO
      singulars
      1. PTAnswer
    2. PO
      singulars
      1. PTAnswer
    3. PO
      singulars
      1. PTAnswer
    1. VO
      singulars
      1. POHow to create a parent model through a child controller in rails 3? (belongs_to association)
      1. USTim
      1. VTFavorite
    2. VO
      singulars
      1. POHow to create a parent model through a child controller in rails 3? (belongs_to association)
      1. USsebkkom
      1. VTFavorite
    1. This table or related slice is empty.
 

Querying!

 
Guidance
A row detail

Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

Related data can be related in a to-one or a to-many fashion. Captions of data related in a to-many fashion link to a list view showing a filtered view of the table.

Try moving around until you find a non-empty to-many entry and click on the label to get to one. You can move back to the root by clicking on the database name in the header.

SQuiL has stopped working due to an internal error.

If you are curious you may find further information in the browser console, which is accessible through the devtools (F12).

Reload