CODEWITHSUNDEEP
ruby-on-railspartials
adhital
adhital

Reputation: 33

passing variable from controller to partial view rails

I am stuck at passing a variable value from controller to partial. I have all the data from skill set database on @skillSetData coming from controller: SkillSetsController 

def skillsetdata
    @skillSetData = SkillSet.all
end

The code below on skill_set/skillsetdata.html.erb display all the data.

<% @skillSetData.each do |single_skill| %>

    <option value="<%= single_skill.skillname %>"><%=single_skill.skillname %></option>

<% end %>

But I am not able to pass the variable if skillsetdata.html.erb is a partial ie: _skillsetdata.html.erb. The code for the _skillsetdata I have written is:

<% skills_set_data.each do |single_skill| %>
   <option value="<%= single_skill.skillname %>">
      <%=single_skill.skillname %>
   </option>
<% end %>

I want to make it partial because it has the dropdown list that has to be rendered on various other pages. One of the pages that I want to use on is:static_pages/home.html.erb which is from different controller ie: staticPages. The code that I have tried after the help is:

<%= render partial: 'skill_sets/skillsetdata', locals: { skills_set_data:@skillSetData } %>

But I am getting error as: undefined method `each' for nil:NilClass in skill_sets/_skillsetdata.html.erb while trying to load home.html.erb. I am not able to pass data between different pages from a partial.

Any help with example code would be helpful.

Upvotes: 3

Views: 6750

Answers (2)

Khanh Pham
Khanh Pham

Reputation: 2973

I guess that you problem here: skill_sets/skillsetdata

<%= render partial: 'skill_sets/skillsetdata', locals: { skills_set_data:@skillSetData } %>

As you wrote that:

The code below on skill_set/skillsetdata.html.erb display all the data.

That the right name is: skill_set/skillsetdata

Here is right name:

<%= render partial: 'skill_set/skillsetdata', locals: { skills_set_data:@skillSetData } %>

Upvotes: 0

Sebasti&#225;n Palma
Sebasti&#225;n Palma

Reputation: 33420

For passing instance variables to partials you can use the locals:

# view from
<%= render partial: 'skillsetdata', locals: { skills_set_data: @skillSetData } %>

While in the local you receive the value of that instance variable, which is now a local one:

# partial
<% skills_set_data.each do |single_skill| %>
  <option value="<%= single_skill.skillname %>">
    <%=single_skill.skillname %>
  </option>
<% end %>

Upvotes: 3

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