I am trying to create a model and update the page element with ajax.
The model is being saved and committed to the database. However the
view just sits there and does nothing. If I refresh the page manually,
the new model is there.
The error log:
ActionView::TemplateError (You have a nil object when you didn't
expect it!
The error occurred while evaluating nil.created_at) on line #4 of
pizzas/_pizza_comment_item.html.erb:
1: <table>
2:
3: <tr>
4: <td class="extend_td_time"><%=
pizza_comment_item.created_at.strftime('%B %d, %Y - %H:%M %p' ) %></
5: <td class="second_td_comment"><%= pizza_comment_item.comment
%></td>
6: </tr>
7:
Controller:
def show
@user_id = session[:user]
@user = User.find(@user_id)
@pizza = Pizza.find(params[:id], :conditions => {:user_id =>
@user_id})
@pizza_comments = PizzaComment.find(:all, :conditions => {:pizza_id
=> @pizza, :user_id => @user_id}, :order => "created_at DESC")
end
def add_pizza_comment
@user_id = session[:user]
@user = User.find(@user_id)
@pizza_comment = PizzaComment.create!(params[:pizza_comment])
render :update do |page|
page.replace_html("pizza_comment", :partial =>
"pizza_comment", :object => @pizza_comment)
end
end
_pizza_comment_item.html.erb
<table>
<tr>
<td class="extend_td_time"><%=
pizza_comment_item.created_at.strftime('%B %d, %Y - %H:%M %p' ) %></
<td class="second_td_comment"><%= pizza_comment_item.comment %></td>
</tr>
</table>
pizza_comment.html.erb
<h3>History</h3>
<div id="show_comment_list">
<%= render :partial => "pizza_comment_item", :collection =>
@pizza_comments %>
</div>
<p></p>
show.html.erb
<div id="pizza_comment">
<%= render(:partial => "pizza_comment", :object => @pizza_comment)%>
</div>
<% form_remote_tag :url => { :action => 'add_pizza_comment' } do %>
<%= text_field 'pizza_comment', 'comment' %>
<%= hidden_field 'pizza_comment', 'user_id', :value => "1" %>
<%= hidden_field 'pizza_comment', 'pizza_id', :value => "2"%>
<%= submit_tag 'Add Comment' %>
<% end %>
