Module: Cms::DataLoader

Defined in:
lib/cms/data_loader.rb

Overview

A DSL for creating CMS content in seed data. Creating content in this manner will log the creation of the record and store any created records in a hash. To use, add the following to your seeds.rb. require “cms/data_loader”

Examples:

Create a Page in the root section

create_page(:hello, name: "Hello", path: "/hello", parent: sections(:root))

Lookup a previously created page

puts pages(:hello).name

Instance Method Summary collapse

Dynamic Method Handling

This class handles dynamic methods through the method_missing method

#method_missing(method_name, *args) ⇒ Object 



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# File 'lib/cms/data_loader.rb', line 16

def method_missing(method_name, *args)
  if md = method_name.to_s.match(/^create_(.+)$/)
    klass = model_class(md[1])
    self.create(klass.name, args[0], args[1] || {})
  elsif @data && @data.has_key?(method_name)
    record = @data[method_name][args.first]
    record ? record.class.find(record.id) : nil
  else
    super
  end
end

Instance Method Details

#create(model_name, record_name, data = {}) ⇒ Object 



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# File 'lib/cms/data_loader.rb', line 43

def create(model_name, record_name, data={})
  puts "-- create_#{model_name}(:#{record_name})" unless Cms::DataLoader.silent_mode
  @data ||= {}
  model_storage_name = model_name.demodulize.underscore.pluralize.to_sym
  @data[model_storage_name] ||= {}
  model = model_name.classify.constantize.new(data)
  model.save!
  @data[model_storage_name][record_name] = model
end

#model_class(model_name) ⇒ Object

We search the CMS namespace first. for things like DynamicPortlets “Cms::DynamicPortlet”.constantize returns “DynamicPortlet”



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# File 'lib/cms/data_loader.rb', line 30

def model_class(model_name)
  klass = begin
    "Cms/#{model_name}".classify.constantize
  rescue NameError => e
    model_name.classify.constantize
  end
  unless klass.method_defined?(:save!)
    raise "Can't create an instance of #{klass} because its not an ActiveRecord instance."
  end
  klass
end