Class: DataMapper::Adapters::ChefAdapter

Inherits:
AbstractAdapter
  • Object
show all
Defined in:
lib/dm-chef-adapter/adapter.rb

Instance Method Summary collapse

Instance Method Details

#attributes_as_fields(attributes) ⇒ Object 



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# File 'lib/dm-chef-adapter/adapter.rb', line 105

def attributes_as_fields(attributes)
  pairs = attributes.map do |property, value|
    dumped = value.kind_of?(Module) ? value.name : property.dump(value)
    [ property.field, dumped ]
  end
  Hash[pairs]
end

#create(resources) ⇒ Object 



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# File 'lib/dm-chef-adapter/adapter.rb', line 30

def create(resources)
  resources.collect do |resource|
    if !Chef::DataBag.list.keys.include?(resource.class.storage_name)
	    databag = Chef::DataBag.new
      databag.name resource.class.storage_name
      databag.create
    end
    begin
      resource.id = @uuid.sha1_create(
        UUIDTools::UUID_DNS_NAMESPACE, 
        ("%10.6f#{resource.class.storage_name}" % Time.now.to_f)
      )
    rescue
      resource.send :instance_variable_set, :@id, resource.key
    end
    if !Chef::DataBag.load(resource.class.storage_name).keys.include?(resource.key.join('_'))
      databag_item = Chef::DataBagItem.new
      databag_item.data_bag resource.class.storage_name
      data = {"id" => resource.key.join('_')}
      data.merge! Chef::JSONCompat.from_json(resource.to_json)
      databag_item.raw_data = data
      databag_item.create
      if !@cache.nil?
        @cache.delete(resource.class.storage_name)
      end
    else
      raise "DataBagItem #{resource.class.storage_name}/#{resource.key.join('_')} already exists."
    end
  end.count
end

#delete(collection) ⇒ Object 



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# File 'lib/dm-chef-adapter/adapter.rb', line 94

def delete(collection)
  read(collection.query).each do |doc|
    databag_item = Chef::DataBagItem.load collection.storage_name, doc["id"]
    databag_item.destroy collection.storage_name, doc["id"]
    if !@cache.nil?
      @cache.delete(collection.storage_name)
    end
  end
end

#read(query) ⇒ Object 



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# File 'lib/dm-chef-adapter/adapter.rb', line 62

def read(query)
  records = records_for(query.model.storage_name)
  ret = []
  query.links.reverse.each do |link|
    children = records_for(link.child_model.storage_name)
    parents = records_for(link.parent_model.storage_name)
    children.each do |child|
      parents.each do |parent|
        if child[link.child_key.first.name.to_s] == parent[link.parent_key.first.name.to_s]
          records.each do |record|
            ret << child.merge(record)
          end
        end
      end
    end
  end
  query.filter_records(ret+records)
end

#update(attributes, collection) ⇒ Object 



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# File 'lib/dm-chef-adapter/adapter.rb', line 81

def update(attributes, collection)
  fields = attributes_as_fields(attributes)
  read(collection.query).each do |doc|
    databag_item = Chef::DataBagItem.load collection.storage_name, doc["id"]
    databag_item.raw_data.merge! Chef::JSONCompat.from_json(fields.to_json)
    databag_item.save
    if !@cache.nil?
      @cache.delete(collection.storage_name)
    end
  end
end