diff --git a/app/models/fileset.rb b/app/models/fileset.rb
index e840ca5..686754a 100644
--- a/app/models/fileset.rb
+++ b/app/models/fileset.rb
@@ -1,88 +1,98 @@
+# Fileset model is the application representation of Bacula's Fileset.
+# It has references to a host and job templates.
 class Fileset < ActiveRecord::Base
   serialize :exclude_directions
   serialize :include_directions, JSON
 
   attr_accessor :include_files
 
   belongs_to :host
   has_many :job_templates
 
   validates :name, presence: true, uniqueness: { scope: :host }
   validate :has_included_files, on: :create
   validates_with NameValidator
 
   before_save :sanitize_exclude_directions, :sanitize_include_directions
 
   DEFAULT_EXCLUDED = %w{/var/lib/bacula /proc /tmp /.journal /.fsck /bacula}
   DEFAULT_INCLUDE_OPTIONS = { signature: :SHA1, compression: :GZIP }
   DEFAULT_INCLUDE_FILE_LIST = ['/']
 
+  # Constructs an array where each element is a line for the Fileset's bacula config
+  #
+  # @return [Array]
   def to_bacula_config_array
     ['FileSet {'] +
       ["  Name = \"#{name_for_config}\""] +
       include_directions_to_config_array +
       exclude_directions_to_config_array +
       ['}']
   end
 
+  # Generates a name that will be used for the configuration file.
+  # It is the name that will be sent to Bacula through the configuration
+  # files.
+  #
+  # @return [String]
   def name_for_config
     [host.name, name].join(' ')
   end
 
   private
 
   def has_included_files
     if include_files.blank? || include_files.all?(&:blank?)
       errors.add(:include_files, :cant_be_blank)
     end
   end
 
   def sanitize_include_directions
     files = include_files.compact.uniq.keep_if(&:present?)
     return false if files.blank?
 
     self.include_directions = { options: DEFAULT_INCLUDE_OPTIONS, file: files }
   end
 
   def sanitize_exclude_directions
     self.exclude_directions = exclude_directions.keep_if(&:present?).uniq rescue nil
   end
 
   def exclude_directions_to_config_array
     return [] if exclude_directions.empty?
     ['  Exclude {'] +
       exclude_directions.map { |x| "    File = \"#{x}\"" } +
       ['  }']
   end
 
   def include_directions_to_config_array
     return [] if include_directions.blank?
     ["  Include {"] +
       included_options +
       included_files +
       ['  }']
   end
 
   def included_options
     formatted = ["    Options {"]
     options = include_directions.deep_symbolize_keys[:options].
       reverse_merge(DEFAULT_INCLUDE_OPTIONS)
     options.each do |k,v|
       if not [:wildfile].include? k
         formatted <<  "      #{k} = #{v}"
       else
         formatted << v.map { |f| "      #{k} = \"#{f}\"" }
       end
     end
     formatted << "    }"
     formatted
   end
 
   def included_files
     include_directions['file'].map { |f| "    File = #{f}" }
   end
 
   def included_wildfile
     include_directions['wildfile'].map { |f| "   wildfile = \"#{f}\"" }.join("\n")
   end
 end