Databases
StackOverflow2013
Postsdbo
POexpected Hash (got Array) for param 'samples'
 

Note that there are some explanatory texts on larger screens.

plurals
  1. POexpected Hash (got Array) for param 'samples'
    primarykey
    data
    text
    <p>I have been following Railscasts episodes of Nested forms and complex forms. During the time of creating multiple model in a single form I was able to edit, update, delete and create records for sample models that were nested in the Batch model. </p> <p>I have been breaking my head from a long time and tried searching around as well but could not get any right solution for solving this problem.</p> <p>my development log file gives me the following error.</p> <p>ERROR MESSAGE:</p> <pre><code>Status: 500 Internal Server Error expected Hash (got Array) for param `samples' </code></pre> <p>in my controller I have the update action like this </p> <pre><code>def update @batch = Batch.find(params[:id]) respond_to do |format| if @batch.update_attributes(params[:batch]) flash[:notice] = 'Successfully updated Batch.' format.html { redirect_to(@batch) } format.xml { head :ok } else format.html { render :action =&gt; "edit" } format.xml { render :xml =&gt; @batch.errors, :status =&gt; :unprocessable_entity } end end end </code></pre> <p>my view is something like this:</p> <pre><code>&lt;%= form_for @batch do |f| %&gt; ...... &lt;%= f.fields_for :samples do |s_form| %&gt; .... s_form things &lt;% end %&gt; &lt;% end %&gt; </code></pre> <p>my model contains the same stuff :</p> <pre><code>has_many :samples, :dependent =&gt; :destroy accepts_nested_attributes_for :samples, :reject_if =&gt; lambda { |a| a[:content].blank? }, :allow_destroy =&gt; true </code></pre> <p>All suggestions are appreciated.</p>
    singulars
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. PTQuestion
    1. USA1aks
    1. USA1aks
    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
    1. VO
      singulars
      1. POexpected Hash (got Array) for param 'samples'
      1. This table or related slice is empty.
      1. VTUpMod
    2. VO
      singulars
      1. POexpected Hash (got Array) for param 'samples'
      1. This table or related slice is empty.
      1. VTUpMod
    1. COI ran into a similar problem when using `text_field_tag` in my form because I supplied Rails-2-style args when I was running Rails 3. Do you see yourself doing that at all? If not, can you provide the entirety of your view? (maybe on pastie.org)
      singulars
      1. POexpected Hash (got Array) for param 'samples'
      1. USJellicleCat
 

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