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
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
|
###
### $Rev$
### $Release:$
### $Copyright$
###
require 'erubis'
module Erubis
class Eruby
include ErboutEnhancer
end
class FastEruby
include ErboutEnhancer
end
module Helpers
##
## helper module for Ruby on Rails
##
## howto:
##
## 1. add the folliwng code in your 'config/environment.rb'
##
## require 'erubis/helpers/rails_helper'
## #Erubis::Helpers::RailsHelper.engine_class = Erubis::Eruby # or Erubis::FastEruby
## #Erubis::Helpers::RailsHelper.init_properties = {}
## #Erubis::Helpers::RailsHelper.show_src = false # set true for debugging
##
## 2. (optional) apply the patch for 'action_view/base.rb'
##
## $ cd /usr/local/lib/ruby/gems/1.8/gems/actionpack-1.13.1/lib/action_view/
## $ sudo patch -p1 < /tmp/erubis_2.X.X/contrib/action_view_base_rb.patch
##
## 3. restart web server.
##
## if Erubis::Helper::Rails.show_src is ture, Erubis prints converted Ruby code
## into log file ('log/development.log' or so). This may be useful for debug.
##
module RailsHelper
#cattr_accessor :init_properties
@@engine_class = Erubis::Eruby
#@@engine_class = Erubis::FastEruby
def self.engine_class
@@engine_class
end
def self.engine_class=(klass)
@@engine_class = klass
end
#cattr_accessor :init_properties
@@init_properties = {}
def self.init_properties
@@init_properties
end
def self.init_properties=(hash)
@@init_properties = hash
end
#cattr_accessor :show_src
@@show_src = false
def self.show_src
@@show_src
end
def self.show_src=(flag)
@@show_src = flag
end
end
end
end
method_name = 'convert_template_into_ruby_code'
unless ActionView::Base.private_instance_methods.include?(method_name) ||
ActionView::Base.instance_methods.include?(method_name)
require 'action_pack/version'
module ActionView # :nodoc:
class Base # :nodoc:
private
# convert template into ruby code
def convert_template_into_ruby_code(template)
ERB.new(template, nil, @@erb_trim_mode).src
end
if ActionPack::VERSION::MINOR <= 12 ### Rails 1.1
# Create source code for given template
def create_template_source(extension, template, render_symbol, locals)
if template_requires_setup?(extension)
body = case extension.to_sym
when :rxml
"xml = Builder::XmlMarkup.new(:indent => 2)\n" +
"@controller.headers['Content-Type'] ||= 'application/xml'\n" +
template
when :rjs
"@controller.headers['Content-Type'] ||= 'text/javascript'\n" +
"update_page do |page|\n#{template}\nend"
end
else
#body = ERB.new(template, nil, @@erb_trim_mode).src
body = convert_template_into_ruby_code(template)
end
@@template_args[render_symbol] ||= {}
locals_keys = @@template_args[render_symbol].keys | locals
@@template_args[render_symbol] = locals_keys.inject({}) { |h, k| h[k] = true; h }
locals_code = ""
locals_keys.each do |key|
locals_code << "#{key} = local_assigns[:#{key}] if local_assigns.has_key?(:#{key})\n"
end
"def #{render_symbol}(local_assigns)\n#{locals_code}#{body}\nend"
end
else ### Rails 1.2 or later
# Create source code for given template
def create_template_source(extension, template, render_symbol, locals)
if template_requires_setup?(extension)
body = case extension.to_sym
when :rxml
"controller.response.content_type ||= 'application/xml'\n" +
"xml = Builder::XmlMarkup.new(:indent => 2)\n" +
template
when :rjs
"controller.response.content_type ||= 'text/javascript'\n" +
"update_page do |page|\n#{template}\nend"
end
else
#body = ERB.new(template, nil, @@erb_trim_mode).src
body = convert_template_into_ruby_code(template)
end
@@template_args[render_symbol] ||= {}
locals_keys = @@template_args[render_symbol].keys | locals
@@template_args[render_symbol] = locals_keys.inject({}) { |h, k| h[k] = true; h }
locals_code = ""
locals_keys.each do |key|
locals_code << "#{key} = local_assigns[:#{key}]\n"
end
"def #{render_symbol}(local_assigns)\n#{locals_code}#{body}\nend"
end
end ###
end
end
end
## set Erubis as eRuby compiler in Ruby on Rails instead of ERB
class ActionView::Base # :nodoc:
private
def convert_template_into_ruby_code(template)
#src = Erubis::Eruby.new(template).src
klass = Erubis::Helpers::RailsHelper.engine_class
properties = Erubis::Helpers::RailsHelper.init_properties
show_src = Erubis::Helpers::RailsHelper.show_src
src = klass.new(template, properties).src
#src.insert(0, '_erbout = ')
logger.debug "** Erubis: src==<<'END'\n#{src}END\n" if show_src
src
end
end
## make h() method faster
module ERB::Util # :nodoc:
ESCAPE_TABLE = { '&'=>'&', '<'=>'<', '>'=>'>', '"'=>'"', "'"=>''', }
def h(value)
value.to_s.gsub(/[&<>"]/) { |s| ESCAPE_TABLE[s] }
end
module_function :h
end
## finish
ac = ActionController::Base.new
ac.logger.info "** Erubis #{Erubis::VERSION}"
#$stdout.puts "** Erubis #{Erubis::VERSION}"
|