Module: EntityStatus::ClassMethods

Defined in:
lib/entity_status.rb

Instance Method Summary collapse

Instance Method Details

#create_finder_methods(column_name, name) ⇒ Object 



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# File 'lib/entity_status.rb', line 62

def create_finder_methods(column_name,name)
  klass = self.to_s
  metaclass.instance_eval do
    define_method(name){
      where(column_name.to_sym => name)
    }
  end
end

#create_statuses_method(name, statuses) ⇒ Object 



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# File 'lib/entity_status.rb', line 51

def create_statuses_method(name,statuses)
  klass = self.to_s
  metaclass.instance_eval do
    # attr_accessor :statuses        
    # @@statuses = statuses
    define_method(name){
      return statuses
    }
  end
end

#entity_status(column_name = "status", status_array = [], options = { destroyed_status: nil}) ⇒ Object 



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# File 'lib/entity_status.rb', line 12

def entity_status(column_name="status",status_array = [], options = { destroyed_status: nil})
  status_array = (status_array.count > 0) ? status_array : %W(pending open closed)

  if options[:destroyed_status]
    status_array << options[:destroyed_status]
    self.set_default_scope(column_name, options[:destroyed_status])
    
    define_method 'destroyed_status' do
      options[:destroyed_status]
    end
  end
  
  self.create_statuses_method(column_name.to_s.pluralize,status_array)
  status_array.each do |st|
    self.create_finder_methods(column_name,st)
    # add dynamic state setters based on the status string
    # example: Post.first.pending #=> 'pending'
    define_method st do
      self.send("#{column_name}=".to_sym,st.to_s)
      self
    end
    
    # Add boolean state checks based on the status string
    # example: Post.first.pending? #=> true
    define_method "#{st}?" do
      (self.send(column_name) == st) ? true :false
    end
  end
  
end

#set_default_scope(column_name, destroyed_status) ⇒ Object 



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# File 'lib/entity_status.rb', line 43

def set_default_scope(column_name,destroyed_status)
  self.default_scope {where.not(column_name.to_sym => destroyed_status)}
  # klass = self.to_s
  # metaclass.instance_eval do
  #   default_scope where.not(column_name.to_sym => destroyed_status)
  # end
end