Databases
StackOverflow2013
Postsdbo
PO
 

Note that there are some explanatory texts on larger screens.

plurals
  1. PO
    primarykey
    data
    text
    <p>Can you try the following?</p> <pre><code>class Publication &lt; ActiveRecord::Base attr_accessible :title, :publication_contributors_attributes has_many :publication_contributors has_many :authors, through: :publication_contributors, source: :contributor, conditions: { publication_contributors: { contributor_type: 'Author' } } has_many :translators, through: :publication_contributors, source: :contributor, conditions: { publication_contributors: { contributor_type: 'Translator' } } accepts_nested_attributes_for :publication_contributors end class Contributor &lt; ActiveRecord::Base attr_accessible :name has_many :publications, through: :publication_contributors has_many :publication_contributors end class PublicationContributor &lt; ActiveRecord::Base attr_accessible :contributor_type belongs_to :publication belongs_to :contributor accepts_nested_attributes_for :contributor end &lt;%= form_for @publication, :remote =&gt; true do |f| %&gt; &lt;%= f.label :title %&gt;: &lt;%= f.text_field :title %&gt; &lt;%= f.fields_for :publication_contributors do |pc_form| %&gt; &lt;%= pc_form.hidden_field :contributor_type %&gt; &lt;%= pc_form.fields_for :contributor do |c_form| %&gt; &lt;%= c_form.label :name, "Author" %&gt;: &lt;%= c_form.text_field :name %&gt; &lt;% end %&gt; &lt;% end %&gt; &lt;%= f.submit %&gt; &lt;% end %&gt; </code></pre> <p>UPDATE: controller code</p> <pre><code>@publication.publication_contributors.build @publication.publication_contributors.each do |pc| pc.build_contributor end </code></pre>
    singulars
    1. This table or related slice is empty.
    1. PORails: Manipulating a Join Table in a Nested Form
      singulars
      1. PTQuestion
    1. PTAnswer
    1. USjvnill
    1. USjvnill
    plurals
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. PORails: Manipulating a Join Table in a Nested Form
      singulars
      1. PTQuestion
    1. This table or related slice is empty.
    1. VO
      singulars
      1. PO
      1. This table or related slice is empty.
      1. VTUpMod
    2. VO
      singulars
      1. PO
      1. This table or related slice is empty.
      1. VTAcceptedByOriginator
    3. VO
      singulars
      1. PO
      1. This table or related slice is empty.
      1. VTUpMod
    1. COGave this shot, but I'm still getting the build error. It's curious that a similar situation works on this [RailsCast](http://railscasts.com/episodes/196-nested-model-form-part-1).
      singulars
      1. PO
      1. USnullnullnull
    2. COi've updated my answer with what should your controller should at least look like :)
      singulars
      1. PO
      1. USjvnill
    3. COOf course! Even though I'd only created one of them, publication_contributors was still an association. What's curious is that I can't set it with `publication_contributors = @publication.publication_contributors.build` and then access it directly with `publication_contributors.each`. Your code works perfectly, though. So thanks! It's just baffling me that I can't access publication_contributors directly.
      singulars
      1. PO
      1. USnullnullnull
 

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