aboutsummaryrefslogtreecommitdiffstats
path: root/actionpack/lib/action_view/renderer/partial_renderer.rb
diff options
context:
space:
mode:
Diffstat (limited to 'actionpack/lib/action_view/renderer/partial_renderer.rb')
-rw-r--r--actionpack/lib/action_view/renderer/partial_renderer.rb57
1 files changed, 55 insertions, 2 deletions
diff --git a/actionpack/lib/action_view/renderer/partial_renderer.rb b/actionpack/lib/action_view/renderer/partial_renderer.rb
index 3033294883..d4c652c0d1 100644
--- a/actionpack/lib/action_view/renderer/partial_renderer.rb
+++ b/actionpack/lib/action_view/renderer/partial_renderer.rb
@@ -32,7 +32,7 @@ module ActionView
#
# <%= render :partial => "account", :object => @buyer %>
#
- # would provide the +@buyer+ object to the partial, available under the local variable +account+ and is
+ # would provide the <tt>@buyer</tt> object to the partial, available under the local variable +account+ and is
# equivalent to:
#
# <%= render :partial => "account", :locals => { :account => @buyer } %>
@@ -158,6 +158,43 @@ module ActionView
# Name: <%= user.name %>
# </div>
#
+ # If a collection is given, the layout will be rendered once for each item in the collection. Just think
+ # these two snippets have the same output:
+ #
+ # <%# app/views/users/_user.html.erb %>
+ # Name: <%= user.name %>
+ #
+ # <%# app/views/users/index.html.erb %>
+ # <%# This does not use layouts %>
+ # <ul>
+ # <% users.each do |user| -%>
+ # <li>
+ # <%= render :partial => "user", :locals => { :user => user } %>
+ # </li>
+ # <% end -%>
+ # </ul>
+ #
+ # <%# app/views/users/_li_layout.html.erb %>
+ # <li>
+ # <%= yield %>
+ # </li>
+ #
+ # <%# app/views/users/index.html.erb %>
+ # <ul>
+ # <%= render :partial => "user", :layout => "li_layout", :collection => users %>
+ # </ul>
+ #
+ # Given two users whose names are Alice and Bob, these snippets return:
+ #
+ # <ul>
+ # <li>
+ # Name: Alice
+ # </li>
+ # <li>
+ # Name: Bob
+ # </li>
+ # </ul>
+ #
# You can also apply a layout to a block within any template:
#
# <%# app/views/users/_chief.html.erb &>
@@ -220,6 +257,14 @@ module ActionView
setup(context, options, block)
identifier = (@template = find_partial) ? @template.identifier : @path
+ @lookup_context.rendered_format ||= begin
+ if @template && @template.formats.present?
+ @template.formats.first
+ else
+ formats.first
+ end
+ end
+
if @collection
instrument(:collection, :identifier => identifier || "collection", :count => @collection.size) do
render_collection
@@ -238,7 +283,14 @@ module ActionView
spacer = find_template(@options[:spacer_template]).render(@view, @locals)
end
+ if layout = @options[:layout]
+ layout = find_template(layout)
+ end
+
result = @template ? collection_with_template : collection_without_template
+
+ result.map!{|content| layout.render(@view, @locals) { content } } if layout
+
result.join(spacer).html_safe
end
@@ -340,9 +392,10 @@ module ActionView
locals[as] = object
segments << template.render(@view, locals)
end
-
+
segments
end
+
def collection_without_template
segments, locals, collection_data = [], @locals, @collection_data