1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
|
module ActiveResource
# A module to support custom REST methods and sub-resources, allowing you to break out
# of the "default" REST methods with your own custom resource requests. For example,
# say you use Rails to expose a REST service and configure your routes with:
#
# map.resources :people, :new => { :register => :post },
# :member => { :promote => :put, :deactivate => :delete }
# :collection => { :active => :get }
#
# This route set creates routes for the following HTTP requests:
#
# POST /people/new/register.xml # PeopleController.register
# PUT /people/1/promote.xml # PeopleController.promote with :id => 1
# DELETE /people/1/deactivate.xml # PeopleController.deactivate with :id => 1
# GET /people/active.xml # PeopleController.active
#
# Using this module, Active Resource can use these custom REST methods just like the
# standard methods.
#
# class Person < ActiveResource::Base
# self.site = "http://37s.sunrise.i:3000"
# end
#
# Person.new(:name => 'Ryan).post(:register) # POST /people/new/register.xml
# # => { :id => 1, :name => 'Ryan' }
#
# Person.find(1).put(:promote, :position => 'Manager') # PUT /people/1/promote.xml
# Person.find(1).delete(:deactivate) # DELETE /people/1/deactivate.xml
#
# Person.get(:active) # GET /people/active.xml
# # => [{:id => 1, :name => 'Ryan'}, {:id => 2, :name => 'Joe'}]
#
module CustomMethods
extend ActiveSupport::Concern
included do
class << self
alias :orig_delete :delete
# Invokes a GET to a given custom REST method. For example:
#
# Person.get(:active) # GET /people/active.xml
# # => [{:id => 1, :name => 'Ryan'}, {:id => 2, :name => 'Joe'}]
#
# Person.get(:active, :awesome => true) # GET /people/active.xml?awesome=true
# # => [{:id => 1, :name => 'Ryan'}]
#
# Note: the objects returned from this method are not automatically converted
# into ActiveResource::Base instances - they are ordinary Hashes. If you are expecting
# ActiveResource::Base instances, use the <tt>find</tt> class method with the
# <tt>:from</tt> option. For example:
#
# Person.find(:all, :from => :active)
def get(custom_method_name, options = {})
connection.get(custom_method_collection_url(custom_method_name, options), headers)
end
def post(custom_method_name, options = {}, body = '')
connection.post(custom_method_collection_url(custom_method_name, options), body, headers)
end
def put(custom_method_name, options = {}, body = '')
connection.put(custom_method_collection_url(custom_method_name, options), body, headers)
end
def delete(custom_method_name, options = {})
# Need to jump through some hoops to retain the original class 'delete' method
if custom_method_name.is_a?(Symbol)
connection.delete(custom_method_collection_url(custom_method_name, options), headers)
else
orig_delete(custom_method_name, options)
end
end
end
end
module ClassMethods
def custom_method_collection_url(method_name, options = {})
prefix_options, query_options = split_options(options)
"#{prefix(prefix_options)}#{collection_name}/#{method_name}.#{format.extension}#{query_string(query_options)}"
end
end
module InstanceMethods
def get(method_name, options = {})
connection.get(custom_method_element_url(method_name, options), self.class.headers)
end
def post(method_name, options = {}, body = nil)
request_body = body.blank? ? encode : body
if new?
connection.post(custom_method_new_element_url(method_name, options), request_body, self.class.headers)
else
connection.post(custom_method_element_url(method_name, options), request_body, self.class.headers)
end
end
def put(method_name, options = {}, body = '')
connection.put(custom_method_element_url(method_name, options), body, self.class.headers)
end
def delete(method_name, options = {})
connection.delete(custom_method_element_url(method_name, options), self.class.headers)
end
private
def custom_method_element_url(method_name, options = {})
"#{self.class.prefix(prefix_options)}#{self.class.collection_name}/#{id}/#{method_name}.#{self.class.format.extension}#{self.class.__send__(:query_string, options)}"
end
def custom_method_new_element_url(method_name, options = {})
"#{self.class.prefix(prefix_options)}#{self.class.collection_name}/new/#{method_name}.#{self.class.format.extension}#{self.class.__send__(:query_string, options)}"
end
end
end
end
|
