# Locals do not appear in partial unless collection is explici **URL:** \ **Category:** Rails\ **Created:** [March 23, 2008, 6:46pm UTC](https://www.ruby-forum.com/t/locals-do-not-appear-in-partial-unless-collection-is-explici/132699 "2008-03-23T18:46:50Z")\ **Posts on this page:** 7\ **Page:** 1
**Author:** ![raven13](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/r/b3f665/32.png) [@raven13](https://www.ruby-forum.com/u/raven13)\ **Post date:** [March 23, 2008, 6:46pm UTC](https://www.ruby-forum.com/t/locals-do-not-appear-in-partial-unless-collection-is-explici/132699/1 "2008-03-23T18:46:50Z")
Maybe I’m misunderstanding something but it appears as if \<%= render :partial =\> @items, @locals =\> { :this =\> ‘that’ } %\> does not give the local variable this but this one does: \<%= render :partial =\> ‘items/item’, :collection =\> @items, @locals =\> { :this =\> ‘that’ } %\> Shouldn’t they mean the same thing? I’m running rails 2.0.2 Martin ---
**Author:** ![raven13](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/r/b3f665/32.png) [@raven13](https://www.ruby-forum.com/u/raven13)\ **Post date:** [March 23, 2008, 7:09pm UTC](https://www.ruby-forum.com/t/locals-do-not-appear-in-partial-unless-collection-is-explici/132699/2 "2008-03-23T19:09:17Z")
Martin Lübcke wrote: > Maybe I’m misunderstanding something but it appears as if > \<%= render :partial =\> @items, @locals =\> { :this =\> ‘that’ } %\> Don’t you want :locals =\> { … ? ---
**Author:** ![raven13](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/r/b3f665/32.png) [@raven13](https://www.ruby-forum.com/u/raven13)\ **Post date:** [March 23, 2008, 7:16pm UTC](https://www.ruby-forum.com/t/locals-do-not-appear-in-partial-unless-collection-is-explici/132699/3 "2008-03-23T19:16:05Z")
Mark B. wrote: > Martin Lübcke wrote: > > > Maybe I’m misunderstanding something but it appears as if > > \<%= render :partial =\> @items, @locals =\> { :this =\> ‘that’ } %\> > > Don’t you want :locals =\> { … > ? Yes, that is both what I want and what I mean. It should be :locals in both lines, the @ was just a typo. Martin ---
**Author:** ![raven13](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/r/b3f665/32.png) [@raven13](https://www.ruby-forum.com/u/raven13)\ **Post date:** [March 23, 2008, 7:59pm UTC](https://www.ruby-forum.com/t/locals-do-not-appear-in-partial-unless-collection-is-explici/132699/4 "2008-03-23T19:59:21Z")
On 23 Mar 2008, at 17:46, Martin Lübcke wrote: > Maybe I’m misunderstanding something but it appears as if > \<%= render :partial =\> @items, @locals =\> { :this =\> ‘that’ } %\> > does not give the local variable this but this one does: > \<%= render :partial =\> ‘items/item’, :collection =\> @items, @locals > =\> { > :this =\> ‘that’ } %\> Is @locals just a typo? Should be :locals. Fred ---
**Author:** ![raven13](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/r/b3f665/32.png) [@raven13](https://www.ruby-forum.com/u/raven13)\ **Post date:** [March 23, 2008, 7:59pm UTC](https://www.ruby-forum.com/t/locals-do-not-appear-in-partial-unless-collection-is-explici/132699/5 "2008-03-23T19:59:22Z")
On 23 Mar 2008, at 18:58, Frederick C. wrote: > Is @locals just a typo? Should be :locals. Oops, ignore me, being a bit slow today. Fred ---
**Author:** ![raven13](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/r/b3f665/32.png) [@raven13](https://www.ruby-forum.com/u/raven13)\ **Post date:** [March 23, 2008, 8:35pm UTC](https://www.ruby-forum.com/t/locals-do-not-appear-in-partial-unless-collection-is-explici/132699/6 "2008-03-23T20:35:20Z")
Martin Lübcke wrote: > > > \<%= render :partial =\> @items, @locals =\> { :this =\> ‘that’ } %\> > > Yes, that is both what I want and what I mean. It should be :locals in > both lines, the @ was just a typo. ok 🙂 Looking at the code for render\_partial (abbreviated): def render\_partial(partial\_path, object\_assigns = nil, local\_assigns = nil) case partial\_path when String, Symbol, NilClass : local\_assigns = local\_assigns ? local\_assigns.clone : {} : render("#{path}/\_#{partial\_name}", local\_assigns) : when Array, ActiveRecord::Associations::AssociationCollection, ActiveRecord::Associations::HasManyThroughAssociation : render\_partial\_collection(path, collection, nil, object\_assigns.value) : So, if you pass an array or an association collection (such as @items above) as the value of the :partial key, then local\_assigns is _not_ passed through. Unless I’m reading this all wrong. I have not looked to see if this is expected behaviour or a bug… ---
**Author:** ![raven13](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/r/b3f665/32.png) [@raven13](https://www.ruby-forum.com/u/raven13)\ **Post date:** [March 23, 2008, 8:45pm UTC](https://www.ruby-forum.com/t/locals-do-not-appear-in-partial-unless-collection-is-explici/132699/7 "2008-03-23T20:45:44Z")
Mark B. wrote: > def render\_partial(partial\_path, object\_assigns = nil, local\_assigns = > nil) > : > render\_partial\_collection(path, collection, nil, > object\_assigns.value) > : To complete the picture here, the definition of render goes: def render(options = {}, old\_local\_assigns = {}, &block) #:nodoc: : elsif options.is\_a?(Hash) : elsif options[:partial] && options[:collection] render\_partial\_collection(options[:partial], options[:collection], options[:spacer\_template], options[:locals]) elsif options[:partial] render\_partial(options[:partial], ActionView::Base::ObjectWrapper.new(options[:object]), options[:locals]) So yes, things work differently for partials if a collection is supplied. Note that options[:locals] is supplied to #render\_partial but the argument in my previous post shows why this is not passed through to #render\_partial\_collection, but it is if options[:collection] is defined.