Class: E9Rails::ActiveRecord::InheritableOptions::IndifferentOptions

Inherits:
OpenStruct
  • Object
show all
Extended by:
ActiveModel::Naming, ActiveModel::Translation
Defined in:
lib/e9_rails/active_record/inheritable_options.rb

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(hash, base) ⇒ IndifferentOptions

Returns a new instance of IndifferentOptions.



110
111
112
113
114
115
116
117
 
# File 'lib/e9_rails/active_record/inheritable_options.rb', line 110

def initialize(hash, base)
  @table = {}
  for k,v in hash
    new_ostruct_member(k)
    @table[k.to_sym] = v
  end
  @base = base
end

Dynamic Method Handling

This class handles dynamic methods through the method_missing method

#method_missing(mid, *args) ⇒ Object

If OpenStruct first generates the new_ostruct_member methods with a setter, it does not use the newly generated methods to set the attribute the first time, but rather does this:

modifiable[new_ostruct_member(mname)] = args[0]

Because of this it’s necessary to explicitly call the newly created setter after new_ostruct_member does its job to ensure that



153
154
155
156
157
158
159
 
# File 'lib/e9_rails/active_record/inheritable_options.rb', line 153

def method_missing(mid, *args)
  super

  if mid.id2name =~ /=$/
    send(mid, *args)
  end
end

Instance Attribute Details

#base ⇒ Object (readonly)

Returns the value of attribute base.



99
100
101
 
# File 'lib/e9_rails/active_record/inheritable_options.rb', line 99

def base
  @base
end

Class Method Details

.i18n_scope ⇒ Object 



103
 
# File 'lib/e9_rails/active_record/inheritable_options.rb', line 103

def i18n_scope; :activerecord end

.name ⇒ Object 



102
 
# File 'lib/e9_rails/active_record/inheritable_options.rb', line 102

def name; 'Options' end

Instance Method Details

#extractable_options? ⇒ Boolean

Returns:

  • (Boolean) 


106
107
108
 
# File 'lib/e9_rails/active_record/inheritable_options.rb', line 106

def extractable_options?
  false
end

#new_ostruct_member(name) ⇒ Object 



128
129
130
131
132
133
134
135
136
137
138
139
140
141
 
# File 'lib/e9_rails/active_record/inheritable_options.rb', line 128

def new_ostruct_member(name)
  name = name.to_sym
  unless @table.keys.member?(name)
    class << self; self; end.class_eval do
      define_method(name) { @table[name] }
      define_method("#{name}=") do |x| 
        modifiable[name] = x
        @base.options = to_hash
        modifiable[name]
      end
    end
  end
  name
end

#respond_to?(method_name) ⇒ Boolean

we respond to anything!

Returns:

  • (Boolean) 


124
125
126
 
# File 'lib/e9_rails/active_record/inheritable_options.rb', line 124

def respond_to?(method_name)
  true
end

#to_hash ⇒ Object 



119
120
121
 
# File 'lib/e9_rails/active_record/inheritable_options.rb', line 119

def to_hash
  @table
end