deac/middleman
1
0
Fork 0
Code Issues Pull requests Releases Wiki Activity

Scenario for using instance vars to pass data to layouts and templates, and prevent

Browse source 
changes to instance vars being shared between different templates.
This commit is contained in:
Ben Hollis 2011-12-06 23:24:14 -08:00
parent 9b07bf24dd
commit 97dc2c9742
7 changed files with 41 additions and 6 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

20
features/instance_vars.feature Normal file
View file

@ -0,0 +1,20 @@
Feature: Instance Vars
In order to share data with layouts and partials via instance variables
Scenario: Setting an instance var in a template should be visible in its layout
Given the Server is running at "instance-vars-app"
When I go to "/instance-var-set.html"
Then I should see "Var is 100"
Scenario: Setting an instance var in a template should be visible in a partial
Given the Server is running at "instance-vars-app"
When I go to "/instance-var-set.html"
Then I should see "My var is here!"
Scenario: Setting an instance var in one file should not be visible in another
Given the Server is running at "instance-vars-app"
When I go to "/instance-var-set.html"
When I go to "/no-instance-var.html"
Then I should see "No var..."

0
fixtures/instance-vars-app/config.rb Normal file
View file

5
fixtures/instance-vars-app/source/_vartial.erb Normal file
View file

@ -0,0 +1,5 @@
<% if @my_var %>
My var is here!
<% else %>
No var...
<% end %>

2
fixtures/instance-vars-app/source/instance-var-set.html.erb Normal file
View file

@ -0,0 +1,2 @@
<% @my_var = 100 %>
<%= partial 'vartial' %>

3
fixtures/instance-vars-app/source/layout.erb Normal file
View file

@ -0,0 +1,3 @@
Var is <%= @my_var %>
<%= yield %>

1
fixtures/instance-vars-app/source/no-instance-var.html.erb Normal file
View file

@ -0,0 +1 @@
<%= partial 'vartial' %>

16
lib/middleman/core_extensions/rendering.rb
View file

@ -40,8 +40,12 @@ module Middleman::CoreExtensions::Rendering
@current_engine, engine_was = engine, @current_engine
# Use a dup of self as a context so that instance variables set within
# the template don't persist for other templates.
context = self.dup
while ::Tilt[path]
content = render_individual_file(path, locs, opts)
content = render_individual_file(path, locs, opts, context)
path = File.basename(path, File.extname(path))
cache.set([:raw_template, path], content)
end
@ -49,7 +53,7 @@ module Middleman::CoreExtensions::Rendering
needs_layout = !%w(.js .css .txt).include?(extension)
if needs_layout && layout_path = fetch_layout(engine, opts)
content = render_individual_file(layout_path, locs, opts) { content }
content = render_individual_file(layout_path, locs, opts, context) { content }
end
content
@ -92,14 +96,14 @@ module Middleman::CoreExtensions::Rendering
end
if found_partial
render_individual_file(found_partial, locals, options, &block)
render_individual_file(found_partial, locals, options, self, &block)
else
raise ::Middleman::CoreExtensions::Rendering::TemplateNotFound, "Could not locate partial: #{data}"
end
end
# @private
def render_individual_file(path, locs = {}, opts = {}, &block)
def render_individual_file(path, locs = {}, opts = {}, context, &block)
path = path.to_s
@_out_buf, _buf_was = "", @_out_buf
@ -116,7 +120,7 @@ module Middleman::CoreExtensions::Rendering
::Tilt.new(path, 1, options) { body }
end
template.render(self, locs, &block)
template.render(context, locs, &block)
ensure
@_out_buf = _buf_was
end
@ -239,4 +243,4 @@ module Middleman::CoreExtensions::Rendering
end
end
end
end
end