From 1d5c34c2c27370356e8cd1ef478111802b6a5af4 Mon Sep 17 00:00:00 2001
From: David Heinemeier Hansson <david@loudthinking.com>
Date: Fri, 27 Apr 2007 20:54:53 +0000
Subject: [PATCH] Added find-by-path options to ActiveResource::Base.find [DHH]

git-svn-id: http://svn-commit.rubyonrails.org/rails/trunk@6595 5ecf4fe2-1ee6-0310-87b1-e25e094e27de
---
 activeresource/CHANGELOG                   |  6 ++++++
 activeresource/lib/active_resource/base.rb | 21 ++++++++++++++-------
 activeresource/test/abstract_unit.rb       |  2 +-
 activeresource/test/base_test.rb           | 15 +++++++++++++++
 4 files changed, 36 insertions(+), 8 deletions(-)

diff --git a/activeresource/CHANGELOG b/activeresource/CHANGELOG
index e740af59be..403933f7aa 100644
--- a/activeresource/CHANGELOG
+++ b/activeresource/CHANGELOG
@@ -1,5 +1,11 @@
 *SVN*
 
+* Added find-by-path options to ActiveResource::Base.find [DHH]. Examples:
+
+    employees = Person.find(:all, :from => "/companies/1/people.xml") # => GET /companies/1/people.xml
+    manager   = Person.find("/companies/1/manager.xml")               # => GET /companies/1/manager.xml
+
+
 * Added support for using classes from within a single nested module [DHH]. Example:
 
     module Highrise
diff --git a/activeresource/lib/active_resource/base.rb b/activeresource/lib/active_resource/base.rb
index 3f7121a7ca..bcc1e8b497 100644
--- a/activeresource/lib/active_resource/base.rb
+++ b/activeresource/lib/active_resource/base.rb
@@ -113,11 +113,13 @@ def create(attributes = {})
       end
 
       # Core method for finding resources.  Used similarly to Active Record's find method.
-      #  Person.find(1)                     # => GET /people/1.xml
-      #  Person.find(:all)                  # => GET /people.xml
-      #  Person.find(:all, :title => "CEO") # => GET /people.xml?title=CEO
-      #  Person.find(:managers)             # => GET /people/managers.xml
-      #  StreetAddress.find(1, :person_id => 1) # => GET /people/1/street_addresses/1.xml
+      #  Person.find(1)                                        # => GET /people/1.xml
+      #  Person.find(:all)                                     # => GET /people.xml
+      #  Person.find(:all, :title => "CEO")                    # => GET /people.xml?title=CEO
+      #  Person.find(:managers)                                # => GET /people/managers.xml
+      #  Person.find(:all, :from => "/companies/1/people.xml") # => GET /companies/1/people.xml
+      #  Person.find("/companies/1/manager.xml")               # => GET /companies/1/manager.xml
+      #  StreetAddress.find(1, :person_id => 1)                # => GET /people/1/street_addresses/1.xml
       def find(*arguments)
         scope   = arguments.slice!(0)
         options = arguments.slice!(0) || {}
@@ -144,8 +146,11 @@ def exists?(id, options = {})
       private
         # Find every resource.
         def find_every(options)
+          from = options.delete(:from)
           prefix_options, query_options = split_options(options)
-          instantiate_collection(connection.get(collection_path(prefix_options, query_options)) || [])
+          from ||= collection_path(prefix_options, query_options)
+
+          instantiate_collection(connection.get(from) || [])
         end
         
         def instantiate_collection(collection, prefix_options = {})
@@ -160,7 +165,9 @@ def instantiate_collection(collection, prefix_options = {})
         #  { :person => person1 }
         def find_single(scope, options)
           prefix_options, query_options = split_options(options)
-          returning new(connection.get(element_path(scope, prefix_options, query_options))) do |resource|
+          from = scope.to_s.include?("/") ? scope : element_path(scope, prefix_options, query_options)
+
+          returning new(connection.get(from)) do |resource|
             resource.prefix_options = prefix_options
           end
         end
diff --git a/activeresource/test/abstract_unit.rb b/activeresource/test/abstract_unit.rb
index 574080acc6..ca0d1631e9 100644
--- a/activeresource/test/abstract_unit.rb
+++ b/activeresource/test/abstract_unit.rb
@@ -8,4 +8,4 @@
 $:.unshift "#{File.dirname(__FILE__)}/../test"
 require 'setter_trap'
 
-ActiveResource::Base.logger = Logger.new("#{File.dirname(__FILE__)}/debug.log")
+ActiveResource::Base.logger = Logger.new("#{File.dirname(__FILE__)}/debug.log")
\ No newline at end of file
diff --git a/activeresource/test/base_test.rb b/activeresource/test/base_test.rb
index 374cb9481a..51e1dd3c04 100644
--- a/activeresource/test/base_test.rb
+++ b/activeresource/test/base_test.rb
@@ -203,6 +203,21 @@ def test_find_by_id_not_found
     assert_raises(ActiveResource::ResourceNotFound) { StreetAddress.find(1) }
   end
 
+  def test_find_all_by_from
+    ActiveResource::HttpMock.respond_to { |m| m.get "/companies/1/people.xml", {}, "<people>#{@david}</people>" }
+  
+    people = Person.find(:all, :from => "/companies/1/people.xml")
+    assert_equal 1, people.size
+    assert_equal "David", people.first.name
+  end
+
+  def test_find_single_by_from
+    ActiveResource::HttpMock.respond_to { |m| m.get "/companies/1/manager.xml", {}, @david }
+
+    david = Person.find("/companies/1/manager.xml")
+    assert_equal "David", david.name
+  end
+
   def test_save
     rick = Person.new
     assert_equal true, rick.save