On Wednesday, August 20, 2014 8:57:49 AM UTC+2, Ruby-Forum.com User wrote:
>
> I have this form
> <%= form_for @lesson do |f| %>
> <%= f.label :lesson_name, "Lesson title" %></br>
> <%= f.text_field :lesson_name, class: "form-control" %></br>
> <%= f.label :lesson_icon, "Choise icon" %>
> <%= f.select "lesson_icon", options_for_select([ "ico-03",
> "ico-04","ico-05","ico-06" ])%></br></br>
> <div>
> <p style="display:none"><%=hh=0%></p>
> <%= f.fields_for :sublessons do |sublesson_a| %>
>
> <div class="delete-subtitle-<%=hh%>" style="padding-bottom:
> 25px;">
> <%= sublesson_a.label :sublesson_name, "Subtitle 1"
> %></br>
> <%= sublesson_a.text_field :sublesson_name, class:
> "form-control delete-sublesson-field-#{hh}" %></br>
> <%= sublesson_a.label :sublesson_content, "Content"
> %></br>
> <%=sublesson_a.text_area 'sublesson_content', rows: 3,
> class: "form-control delete-sublesson-content-#{hh}"%></br>
> <%= sublesson_a.label :sublesson_video_link, "Video link"
> %><br>
> <%= sublesson_a.text_field :sublesson_video_link, class:
> "form-control delete-sublesson-video-#{hh}" %></br>
> <a style="float:right" class="btn btn-primary"
> id="remove_sublesson" onclick="remove_sublesson(<%=hh%>)">Delete
> Sublesson</a>
> <p style="display:none"><%= hh=hh+1%></p>
> </div>
>
> <%end%>
> </div>
>
> <%= f.submit "Submit", class: "btn btn-primary" %>
> <a class="btn btn-primary" id="addNewTag"
> onclick="add_sublesson()">Add Sublesson</a>
>
> <% end %>
>
> This is a form for edit....How can i test if :sublessons is empty?
>
> --
> Posted via http://www.ruby-forum.com/.
>
I suppose that your lesson 'has_many' sublessons. In this case you can
check it as follows:
if @lesson.sublessons.any?
It returns true if the collection is not empty
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