I have a loop like such:
<% @posts.each do |post| %>
<% render middle %>
<% end %>
Then in my middle partial, how do I access the current post?
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Hello Elliot I'm using this on standard scaffolded. Using inside index.html.erb to render _show.html.erb where show partial contains modal. every thing is working fine except that when I press show link, it is showing same id instead of showing different id's.learner– learner2015-05-03 04:23:59 +00:00Commented May 3, 2015 at 4:23
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5 Answers
Try this:
<% @posts.each do |post| %>
<%= render 'middle', :post => post %>
<% end %>
Like this you'll have a local variable post available within the partial.
Give it to the partial as a local variable
<%= render :partial => 'middle', :locals => { :post => post } %>
Of course, rails also has a shortcut for rendering collections:
<%= render :partial => 'post', :collection => @posts %>
In this case it will call the partial post for every post with a local variable 'post'
You can even render a spacer template between each post:
<%= render :partial => 'post', :collection => @posts, :spacer_template => 'post_divider' %>
4 Comments
Claudio Acciaresi
Didn't know about the :spacer_template option, really nice. Thanks!
superluminary
Note that the :locals hash is not needed when using Rails 3. The arguments hash is converted into arguments which are passed to the partial.
mck
I still needed :locals hash for it to work.. I'm running 3.2.12
ahnbizcad
<%= render :partial => 'post', :collection => @posts, as: :post %> will automatically loop through each post in your partial, so you can use post in your partial as the variable.<% @posts.each do |post| %>
<% render middle, :post => post %>
<% end %>
You can now access post as the local variable post in the partial
Comments
Replace <%= render middle %> with <%= render middle, :post => post %>. Then in your middle partial, you can access the post variable.
Comments
You can replace the entire each block with this:
<%= render partial: "product", collection: @posts %>
Or even shorter:
<%= render @posts %>
Full documentation (section 3.2) https://guides.rubyonrails.org/action_view_overview.html
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