Class: AutoError::HelperContext

Inherits:
Object
  • Object
show all
Defined in:
lib/auto_error/helper_context.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(env) ⇒ HelperContext

Returns a new instance of HelperContext.



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
 
# File 'lib/auto_error/helper_context.rb', line 5

def initialize( env )
  @env = env

  AutoError::Config.helpers.each do |mod_name|
    # grab the module by name we were given
    # it is available in the 'parent' Rails.application
    mod = Rails.application.class.qualified_const_get(mod_name)

    class_eval do
      # include that module in this HelperContext
      send( :include, mod )

      # but go through all of its instance methods
      # and alias-method-chain style twiddle them so we can bind
      # them to the correct environment inside auto_error
      mod.instance_methods.each do |imeth|
        alias :"#{imeth}_without_env" :"#{imeth}"
        send( :define_method, :"#{imeth}" ) do |*args|
          env.instance_exec( *args, &method( :"#{imeth}_without_env" ) )
        end
      end

      # also include rails helpers and ActionView helpers
      send( :include, ActionView::Helpers )
      send( :include, Rails.application.routes.url_helpers )
    end
  end
end

Instance Attribute Details

#env ⇒ Object

Returns the value of attribute env.



3
4
5
 
# File 'lib/auto_error/helper_context.rb', line 3

def env
  @env
end

Instance Method Details

#default_url_options ⇒ Object 



34
 
# File 'lib/auto_error/helper_context.rb', line 34

def default_url_options; {}; end