ActsAsKaltura

Kaltura is SaaS based video streaming platform, officially kaltura ruby API is available here. Another fork could be found here. Based on velir kaltura ruby library, we somewhere in... ruby devs have built this gem to simplify kaltura video and cuepoint synchronization process.

acts_as_kaltura_video

It sync your video model with kaltura MediaEntry.

Usages -

class Video
  acts_as_kaltura_video :delegate => [:thumbnail_url, :duration],
                        # If you don't mention :setting_scope it will take
                        # configuration from config/kaltura.yml
                        :setting_scope => lambda { |v|
                          #... provide configuration hash
                        }

  # Set media entry object based on your required fields
  def as_kaltura_entry
   Kaltura::MediaEntry.new.tap do |entry|
     entry.name = title
     entry.description = description
     entry.tags = tags.map &:name
     entry.media_type = Kaltura::Constants::Media::Type::VIDEO
   end
 end
end

Video model must includes the following fields -

• kaltura_key (string)

• kaltura_syncd_at (datetime)

if you use :delegate => [kaltura web service fields] you have to add fields for each delegatable field. ie. for :delegate => [:thumbnail_url] you have to add :thumbnail_url (text) to video model.

Create video

Video.create(:title => 'My birthday video', :description => 'Great family moments', :video_file => ..)

Using delegate methods

Video.first.thumbnail_url it will check local thumbnail_url attribute if not found it will retrieve thumbnail through kaltura web service and it will run update_column :thumbnail_url, value.

acts_as_kaltura_annotation

It will sync your Annotation model with kaltura cuepoint annotation object.

Usages -

class Annotation < ActiveRecord::Base
  belongs_to  :video
  acts_as_kaltura_annotation
  def as_annotation_cuepoint
    ActsAsKaltura::Extension::KalturaAnnotation.new.tap do |cp|
      cp.cue_point_type = ActsAsKaltura::Extension::KalturaAnnotation::TYPE_ANNOTATION

      # convert to milliseconds
      cp.start_time = self.start_time.to_i * 1000
      cp.end_time = self.end_time.to_i * 1000

      cp.system_name = self.title
      cp.text = self.description
      cp.entry_id = self.video.kaltura_key
    end
  end
end

Annotation model must includes the following fields -

• cuepoint_key (String)

acts_as_kaltura_category

Sync local categories with Kaltura. You have to set existing kaltura category id to any of your parent categories. When you create sub category (you must have parent method exposed) it will automatically pushed to kaltura. Same goes for updating and deleting kaltura category. (if you destroy child category it will automatically remove kaltura category)

Usages -

class Category < ActiveRecord::Base
  belongs_to :parent, :class_name => 'Category'
  has_many :categories, :foreign_key => 'parent_id'
  has_and_belongs_to_many :videos

  acts_as_kaltura_category

  def as_kaltura_category
    Kaltura::Category.new.tap do |c|
      c.name = self.name
      if kaltura_reference_found?
        c.parent_id = self.parent.kaltura_category_key
      end
    end
  end
end

Required fields

• kaltura_category_key (String)

How to install

gem install acts_as_kaltura

Configuration

Create file under RAILS_ROOT/config/kaltura.yml. Checkout the sample

Changes

• Added kaltura_parent_categories class method

• Made kaltura_reference_found? method public