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
|
class ScaffoldingSandbox
include ActionView::Helpers::ActiveRecordHelper
attr_accessor :form_action, :singular_name, :suffix, :model_instance
def sandbox_binding
binding
end
def default_input_block
Proc.new { |record, column| "<p><label for=\"#{record}_#{column.name}\">#{column.human_name}</label><br/>\n#{input(record, column.name)}</p>\n" }
end
end
class ActionView::Helpers::InstanceTag
def to_input_field_tag(field_type, options={})
field_meth = "#{field_type}_field"
"<%= #{field_meth} '#{@object_name}', '#{@method_name}' #{options.empty? ? '' : ', '+options.inspect} %>"
end
def to_text_area_tag(options = {})
"<%= text_area '#{@object_name}', '#{@method_name}' #{options.empty? ? '' : ', '+ options.inspect} %>"
end
def to_date_select_tag(options = {})
"<%= date_select '#{@object_name}', '#{@method_name}' #{options.empty? ? '' : ', '+ options.inspect} %>"
end
def to_datetime_select_tag(options = {})
"<%= datetime_select '#{@object_name}', '#{@method_name}' #{options.empty? ? '' : ', '+ options.inspect} %>"
end
end
class ScaffoldGenerator < Rails::Generator::NamedBase
attr_reader :controller_name,
:controller_class_path,
:controller_file_path,
:controller_class_nesting,
:controller_class_nesting_depth,
:controller_class_name,
:controller_singular_name,
:controller_plural_name
alias_method :controller_file_name, :controller_singular_name
alias_method :controller_table_name, :controller_plural_name
def initialize(runtime_args, runtime_options = {})
super
@controller_name = args.shift || @name.pluralize
base_name, @controller_class_path, @controller_file_path, @controller_class_nesting, @controller_class_nesting_depth = extract_modules(@controller_name)
@controller_class_name_without_nesting, @controller_singular_name, @controller_plural_name = inflect_names(base_name)
if @controller_class_nesting.empty?
@controller_class_name = @controller_class_name_without_nesting
else
@controller_class_name = "#{@controller_class_nesting}::#{@controller_class_name_without_nesting}"
end
end
def manifest
record do |m|
# Depend on model generator but skip if the model exists.
m.dependency 'model', [singular_name], :collision => :skip
# Check for class naming collisions.
m.class_collisions controller_class_path, "#{controller_class_name}Controller", "#{controller_class_name}ControllerTest", "#{controller_class_name}Helper"
# Controller, helper, views, and test directories.
m.directory File.join('app/controllers', controller_class_path)
m.directory File.join('app/helpers', controller_class_path)
m.directory File.join('app/views', controller_class_path, controller_file_name)
m.directory File.join('test/functional', controller_class_path)
# Controller class, functional test, helper, and views.
m.template 'controller.rb',
File.join('app/controllers',
controller_class_path,
"#{controller_file_name}_controller.rb")
m.template 'functional_test.rb',
File.join('test/functional',
controller_class_path,
"#{controller_file_name}_controller_test.rb")
m.template 'helper.rb',
File.join('app/helpers',
controller_class_path,
"#{controller_file_name}_helper.rb")
# Layout and stylesheet.
m.template 'layout.rhtml', "app/views/layouts/#{controller_file_name}.rhtml"
m.template 'style.css', 'public/stylesheets/scaffold.css'
# Scaffolded views.
scaffold_views.each do |action|
m.template "view_#{action}.rhtml",
File.join('app/views',
controller_class_path,
controller_file_name,
"#{action}.rhtml"),
:assigns => { :action => action }
end
# Scaffolded forms.
m.complex_template "form.rhtml",
File.join('app/views',
controller_class_path,
controller_file_name,
"_form.rhtml"),
:insert => 'form_scaffolding.rhtml',
:sandbox => lambda { create_sandbox },
:begin_mark => 'form',
:end_mark => 'eoform',
:mark_id => singular_name
# Unscaffolded views.
unscaffolded_actions.each do |action|
m.template "controller:view.rhtml",
File.join('app/views',
controller_class_path,
controller_file_name,
"#{action}.rhtml"),
:assigns => { :action => action }
end
end
end
protected
# Override with your own usage banner.
def banner
"Usage: #{$0} scaffold ModelName [ControllerName] [action, ...]"
end
def scaffold_views
%w(list show new edit)
end
def scaffold_actions
scaffold_views + %w(index create update destroy)
end
def model_name
class_name.demodulize
end
def unscaffolded_actions
args - scaffold_actions
end
def suffix
"_#{singular_name}" if options[:suffix]
end
def create_sandbox
sandbox = ScaffoldingSandbox.new
sandbox.singular_name = singular_name
begin
sandbox.model_instance = model_instance
sandbox.instance_variable_set("@#{singular_name}", sandbox.model_instance)
rescue ActiveRecord::StatementInvalid => e
logger.error "Before updating scaffolding from new DB schema, try creating a table for your model (#{class_name})"
raise SystemExit
end
sandbox.suffix = suffix
sandbox
end
def model_instance
base = class_nesting.split('::').inject(Object) do |base, nested|
break base.const_get(nested) if base.const_defined?(nested)
base.const_set(nested, Module.new)
end
unless base.const_defined?(@class_name_without_nesting)
base.const_set(@class_name_without_nesting, Class.new(ActiveRecord::Base))
end
class_name.constantize.new
end
end
|
