class Decidim::Meetings::AttendingOrganizationsListCell

cell(“decidim/participating_organizations_list”, meeting)
Example:
organizations of a meeting.
This cell renders the list of public participanting

def public_participants

Returns an Array of presented UserGroups

Finds the public organizations (as user groups) of meeting 
def public_participants
  @public_participants ||= user_groups.map { |user_group| present(user_group) }
end

def user_group_ids 

def user_group_ids
  model.user_group_registrations.user_group_ids
end

def user_groups 

def user_groups
  Decidim::UserGroup.where(id: user_group_ids)
end