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#
# Copyright (C) 2011 - present Instructure, Inc.
#
# This file is part of Canvas.
#
# Canvas is free software: you can redistribute it and/or modify it under
# the terms of the GNU Affero General Public License as published by the Free
# Software Foundation, version 3 of the License.
#
# Canvas is distributed in the hope that it will be useful, but WITHOUT ANY
# WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
# A PARTICULAR PURPOSE. See the GNU Affero General Public License for more
# details.
#
# You should have received a copy of the GNU Affero General Public License along
# with this program. If not, see <http://www.gnu.org/licenses/>.
#
require 'atom'
# @API Groups
#
# Groups serve as the data for a few different ideas in Canvas. The first is
# that they can be a community in the canvas network. The second is that they
# can be organized by students in a course, for study or communication (but not
# grading). The third is that they can be organized by teachers or account
# administrators for the purpose of projects, assignments, and grading. This
# last kind of group is always part of a group category, which adds the
# restriction that a user may only be a member of one group per category.
#
# All of these types of groups function similarly, and can be the parent
# context for many other types of functionality and interaction, such as
# collections, discussions, wikis, and shared files.
#
# @model Group
# {
# "id": "Group",
# "description": "",
# "properties": {
# "id": {
# "description": "The ID of the group.",
# "example": 17,
# "type": "integer"
# },
# "name": {
# "description": "The display name of the group.",
# "example": "Math Group 1",
# "type": "string"
# },
# "description": {
# "description": "A description of the group. This is plain text.",
# "type": "string"
# },
# "is_public": {
# "description": "Whether or not the group is public. Currently only community groups can be made public. Also, once a group has been set to public, it cannot be changed back to private.",
# "example": false,
# "type": "boolean"
# },
# "followed_by_user": {
# "description": "Whether or not the current user is following this group.",
# "example": false,
# "type": "boolean"
# },
# "join_level": {
# "description": "How people are allowed to join the group. For all groups except for community groups, the user must share the group's parent course or account. For student organized or community groups, where a user can be a member of as many or few as they want, the applicable levels are 'parent_context_auto_join', 'parent_context_request', and 'invitation_only'. For class groups, where students are divided up and should only be part of one group of the category, this value will always be 'invitation_only', and is not relevant. * If 'parent_context_auto_join', anyone can join and will be automatically accepted. * If 'parent_context_request', anyone can request to join, which must be approved by a group moderator. * If 'invitation_only', only those how have received an invitation my join the group, by accepting that invitation.",
# "example": "invitation_only",
# "type": "string",
# "allowableValues": {
# "values": [
# "parent_context_auto_join",
# "parent_context_request",
# "invitation_only"
# ]
# }
# },
# "members_count": {
# "description": "The number of members currently in the group",
# "example": 0,
# "type": "integer"
# },
# "avatar_url": {
# "description": "The url of the group's avatar",
# "example": "https://<canvas>/files/avatar_image.png",
# "type": "string"
# },
# "context_type": {
# "description": "The course or account that the group belongs to. The pattern here is that whatever the context_type is, there will be an _id field named after that type. So if instead context_type was 'account', the course_id field would be replaced by an account_id field.",
# "example": "Course",
# "type": "string"
# },
# "course_id": {
# "example": 3,
# "type": "integer"
# },
# "role": {
# "description": "Certain types of groups have special role designations. Currently, these include: 'communities', 'student_organized', and 'imported'. Regular course/account groups have a role of null.",
# "type": "string",
# "allowableValues": {
# "values": [
# "communities",
# "student_organized",
# "imported"
# ]
# }
# },
# "group_category_id": {
# "description": "The ID of the group's category.",
# "example": 4,
# "type": "integer"
# },
# "sis_group_id": {
# "description": "The SIS ID of the group. Only included if the user has permission to view SIS information.",
# "example": "group4a",
# "type": "string"
# },
# "sis_import_id": {
# "description": "The id of the SIS import if created through SIS. Only included if the user has permission to manage SIS information.",
# "example": 14,
# "type": "integer"
# },
# "storage_quota_mb": {
# "description": "the storage quota for the group, in megabytes",
# "example": 50,
# "type": "integer"
# },
# "permissions": {
# "description": "optional: the permissions the user has for the group. returned only for a single group and include[]=permissions",
# "example": {"create_discussion_topic": true, "create_announcement": true},
# "type": "object",
# "key": { "type": "string" },
# "value": { "type": "boolean" }
# }
# }
# }
#
class GroupsController < ApplicationController
before_action :get_context
before_action :require_user, :only => %w[index accept_invitation activity_stream activity_stream_summary]
include Api::V1::Attachment
include Api::V1::Group
include Api::V1::GroupCategory
SETTABLE_GROUP_ATTRIBUTES = %w(
name description join_level is_public group_category avatar_attachment
storage_quota_mb max_membership leader
).freeze
include TextHelper
def context_group_members
@group = @context
if authorized_action(@group, @current_user, :read_roster)
render :json => @group.members_json_cached
end
end
def unassigned_members
category = @context.group_categories.where(id: params[:category_id]).first
return render :json => {}, :status => :not_found unless category
page = (params[:page] || 1).to_i rescue 1
per_page = Api.per_page_for(self, default: 15, max: 100)
if category && !category.student_organized?
groups = category.groups.active
else
groups = []
end
users = @context.users_not_in_groups(groups, order: User.sortable_name_order_by_clause('users')).
paginate(page: page, per_page: per_page)
if authorized_action(@context, @current_user, :manage)
json = {
:pages => users.total_pages,
:current_page => users.current_page,
:next_page => users.next_page,
:previous_page => users.previous_page,
:total_entries => users.total_entries,
:users => users.map { |u| u.group_member_json(@context) }
}
json[:pagination_html] = render_to_string(:partial => 'user_pagination', :locals => { :users => users }) unless params[:no_html]
render :json => json
end
end
# @API List your groups
#
# Returns a list of active groups for the current user.
#
# @argument context_type [String, "Account"|"Course"]
# Only include groups that are in this type of context.
#
# @argument include[] [String, "tabs"]
# - "tabs": Include the list of tabs configured for each group. See the
# {api:TabsController#index List available tabs API} for more information.
#
# @example_request
# curl https://<canvas>/api/v1/users/self/groups?context_type=Account \
# -H 'Authorization: Bearer <token>'
#
# @returns [Group]
def index
return context_index if @context
includes = {:include => params[:include]}
groups_scope = @current_user.current_groups
respond_to do |format|
format.html do
groups_scope = groups_scope.by_name
groups_scope = groups_scope.where(:context_type => params[:context_type]) if params[:context_type]
groups_scope = groups_scope.preload(:group_category, :context)
groups = groups_scope.shard(@current_user).to_a
groups.select!{|group| group.context_type != 'Course' || group.context.grants_right?(@current_user, :read)}
# Split the groups out into those in concluded courses and those not in concluded courses
@current_groups, @previous_groups = groups.partition do |group|
group.context_type != 'Course' || !group.context.concluded?('StudentEnrollment')
end
end
format.json do
@groups = ShardedBookmarkedCollection.build(Group::Bookmarker, groups_scope) do |scope|
scope = scope.where(:context_type => params[:context_type]) if params[:context_type]
scope.preload(:group_category, :context)
end
@groups = Api.paginate(@groups, self, api_v1_current_user_groups_url)
render :json => (@groups.map { |g| group_json(g, @current_user, session,includes) })
end
end
end
# @API List the groups available in a context.
#
# Returns the list of active groups in the given context that are visible to user.
#
# @argument only_own_groups [Boolean]
# Will only include groups that the user belongs to if this is set
#
# @argument include[] [String, "tabs"]
# - "tabs": Include the list of tabs configured for each group. See the
# {api:TabsController#index List available tabs API} for more information.
#
# @example_request
# curl https://<canvas>/api/v1/courses/1/groups \
# -H 'Authorization: Bearer <token>'
#
# @returns [Group]
def context_index
return unless authorized_action(@context, @current_user, :read_roster)
@groups = all_groups = @context.groups.active
.order(GroupCategory::Bookmarker.order_by, Group::Bookmarker.order_by)
.eager_load(:group_category)
unless api_request?
if @context.is_a?(Account)
user_crumb = t('#crumbs.users', "Users")
@active_tab = "users"
@group_user_type = "user"
@allow_self_signup = false
else
user_crumb = t('#crumbs.people', "People")
@active_tab = "people"
@group_user_type = "student"
@allow_self_signup = true
if @context.grants_right? @current_user, session, :read_as_admin
js_env STUDENT_CONTEXT_CARDS_ENABLED: @domain_root_account.feature_enabled?(:student_context_cards)
end
end
add_crumb user_crumb, named_context_url(@context, :context_users_url)
add_crumb t('#crumbs.groups', "Groups"), named_context_url(@context, :context_groups_url)
end
respond_to do |format|
format.html do
@categories = @context.group_categories.order("role <> 'student_organized'", GroupCategory.best_unicode_collation_key('name'))
@user_groups = @current_user.group_memberships_for(@context) if @current_user
if @context.grants_right?(@current_user, session, :manage_groups)
categories_json = @categories.map{ |cat| group_category_json(cat, @current_user, session, include: ["progress_url", "unassigned_users_count", "groups_count"]) }
uncategorized = @context.groups.active.uncategorized.to_a
if uncategorized.present?
json = group_category_json(GroupCategory.uncategorized, @current_user, session)
json["groups"] = uncategorized.map{ |group| group_json(group, @current_user, session) }
categories_json << json
end
js_env group_categories: categories_json,
group_user_type: @group_user_type,
allow_self_signup: @allow_self_signup
if @context.is_a?(Course)
# get number of sections with students in them so we can enforce a min group size for random assignment on sections
js_env(:student_section_count => @context.enrollments.active_or_pending.where(:type => "StudentEnrollment").distinct.count(:course_section_id))
end
# since there are generally lots of users in an account, always do large roster view
@js_env[:IS_LARGE_ROSTER] ||= @context.is_a?(Account)
render :context_manage_groups
else
@groups = @user_groups = @groups & (@user_groups || [])
@available_groups = (all_groups - @user_groups).select do |group|
group.grants_right?(@current_user, :join)
end
render :context_groups
end
end
format.atom { render :xml => @groups.map { |group| group.to_atom }.to_xml }
format.json do
path = send("api_v1_#{@context.class.to_s.downcase}_user_groups_url")
if value_to_boolean(params[:only_own_groups])
all_groups = all_groups.merge(@current_user.current_groups)
end
@paginated_groups = Api.paginate(all_groups, self, path)
render :json => @paginated_groups.map { |g| group_json(g, @current_user, session, :include => Array(params[:include])) }
end
end
end
# @API Get a single group
#
# Returns the data for a single group, or a 401 if the caller doesn't have
# the rights to see it.
#
# @example_request
# curl https://<canvas>/api/v1/groups/<group_id> \
# -H 'Authorization: Bearer <token>'
#
# @argument include[] [String, "permissions", "tabs"]
# - "permissions": Include permissions the current user has
# for the group.
# - "tabs": Include the list of tabs configured for each group. See the
# {api:TabsController#index List available tabs API} for more information.
#
# @returns Group
def show
find_group
respond_to do |format|
format.html do
if @group && @group.context
add_crumb @group.context.short_name, named_context_url(@group.context, :context_url)
add_crumb @group.short_name, named_context_url(@group, :context_url)
elsif @group
add_crumb @group.short_name, named_context_url(@group, :context_url)
end
@context = @group
if @group.deleted? && @group.context
flash[:notice] = t('notices.already_deleted', "That group has been deleted")
redirect_to named_context_url(@group.context, :context_url)
return
end
@current_conferences = @group.web_conferences.active.select{|c| c.active? && c.users.include?(@current_user) } rescue []
@scheduled_conferences = @context.web_conferences.active.select{|c| c.scheduled? && c.users.include?(@current_user)} rescue []
@stream_items = @current_user.try(:cached_recent_stream_items, { :contexts => @context }) || []
if params[:join] && @group.grants_right?(@current_user, :join)
if @group.full?
flash[:error] = t('errors.group_full', 'The group is full.')
redirect_to course_groups_url(@group.context)
return
end
@group.request_user(@current_user)
if !@group.grants_right?(@current_user, session, :read)
render :membership_pending
return
else
flash[:notice] = t('notices.welcome', "Welcome to the group %{group_name}!", :group_name => @group.name)
redirect_to named_context_url(@group.context, :context_groups_url)
return
end
end
if params[:leave] && @group.grants_right?(@current_user, :leave)
membership = @group.membership_for_user(@current_user)
if membership
membership.destroy
flash[:notice] = t('notices.goodbye', "You have removed yourself from the group %{group_name}.", :group_name => @group.name)
redirect_to named_context_url(@group.context, :context_groups_url)
return
end
end
if authorized_action(@group, @current_user, :read)
set_badge_counts_for(@group, @current_user)
@home_page = @group.wiki.front_page
end
end
format.json do
if authorized_action(@group, @current_user, :read)
render :json => group_json(@group, @current_user, session, :include => Array(params[:include]))
end
end
end
end
def new
if authorized_action(@context, @current_user, :manage_groups)
@group = @context.groups.build
end
end
# @API Create a group
#
# Creates a new group. Groups created using the "/api/v1/groups/"
# endpoint will be community groups.
#
# @argument name [String]
# The name of the group
#
# @argument description [String]
# A description of the group
#
# @argument is_public [Boolean]
# whether the group is public (applies only to community groups)
#
# @argument join_level [String, "parent_context_auto_join"|"parent_context_request"|"invitation_only"]
#
# @argument storage_quota_mb [Integer]
# The allowed file storage for the group, in megabytes. This parameter is
# ignored if the caller does not have the manage_storage_quotas permission.
#
# @example_request
# curl https://<canvas>/api/v1/groups \
# -F 'name=Math Teachers' \
# -F 'description=A place to gather resources for our classes.' \
# -F 'is_public=true' \
# -F 'join_level=parent_context_auto_join' \
# -H 'Authorization: Bearer <token>'
#
# @returns Group
def create
attrs = api_request? ? params : params.require(:group)
attrs = attrs.permit(:name, :description, :join_level, :is_public, :storage_quota_mb, :max_membership)
if api_request?
if params[:group_category_id]
group_category = GroupCategory.active.find(params[:group_category_id])
return render :json => {}, :status => bad_request unless group_category
@context = group_category.context
attrs[:group_category] = group_category
return unless authorized_action(group_category.context, @current_user, :manage_groups)
else
@context = @domain_root_account
attrs[:group_category] = GroupCategory.communities_for(@context)
end
elsif params[:group]
group_category_id = params[:group].delete :group_category_id
if group_category_id && @context.grants_right?(@current_user, session, :manage_groups)
group_category = @context.group_categories.where(id: group_category_id).first
return render :json => {}, :status => :bad_request unless group_category
attrs[:group_category] = group_category
else
attrs[:group_category] = nil
end
end
attrs.delete :storage_quota_mb unless @context.grants_right? @current_user, session, :manage_storage_quotas
@group = @context.groups.temp_record(attrs.slice(*SETTABLE_GROUP_ATTRIBUTES))
if authorized_action(@group, @current_user, :create)
respond_to do |format|
if @group.save
@group.add_user(@current_user, 'accepted', true) if @group.should_add_creator?(@current_user)
@group.invitees = params[:invitees]
flash[:notice] = t('notices.create_success', 'Group was successfully created.')
format.html { redirect_to group_url(@group) }
format.json { render :json => group_json(@group, @current_user, session, {include: ['users', 'group_category', 'permissions']}) }
else
format.html { render :new }
format.json { render :json => @group.errors, :status => :bad_request }
end
end
end
end
# @API Edit a group
#
# Modifies an existing group. Note that to set an avatar image for the
# group, you must first upload the image file to the group, and the use the
# id in the response as the argument to this function. See the
# {file:file_uploads.html File Upload Documentation} for details on the file
# upload workflow.
#
# @argument name [String]
# The name of the group
#
# @argument description [String]
# A description of the group
#
# @argument is_public [Boolean]
# Whether the group is public (applies only to community groups). Currently
# you cannot set a group back to private once it has been made public.
#
# @argument join_level [String, "parent_context_auto_join"|"parent_context_request"|"invitation_only"]
#
# @argument avatar_id [Integer]
# The id of the attachment previously uploaded to the group that you would
# like to use as the avatar image for this group.
#
# @argument storage_quota_mb [Integer]
# The allowed file storage for the group, in megabytes. This parameter is
# ignored if the caller does not have the manage_storage_quotas permission.
#
# @argument members[] [String]
# An array of user ids for users you would like in the group.
# Users not in the group will be sent invitations. Existing group
# members who aren't in the list will be removed from the group.
#
# @example_request
# curl https://<canvas>/api/v1/groups/<group_id> \
# -X PUT \
# -F 'name=Algebra Teachers' \
# -F 'join_level=parent_context_request' \
# -H 'Authorization: Bearer <token>'
#
# @returns Group
def update
find_group
group_params = api_request? ? params : params.require(:group)
attrs = group_params.permit(:name, :description, :join_level, :is_public, :avatar_id, :storage_quota_mb, :max_membership,
:leader => strong_anything, :members => strong_anything)
attrs[:leader] = nil if group_params.has_key?(:leader) && !group_params[:leader].present?
if !api_request? && params[:group][:group_category_id]
group_category_id = params[:group].delete :group_category_id
group_category = @context.group_categories.where(id: group_category_id).first
return render :json => {}, :status => :bad_request unless group_category
attrs[:group_category] = group_category
end
attrs.delete :storage_quota_mb unless @group.context.grants_right? @current_user, session, :manage_storage_quotas
attrs[:avatar_attachment] = @group.active_images.where(id: attrs[:avatar_id]).first if attrs[:avatar_id]
if attrs[:leader]
membership = @group.group_memberships.where(user_id: attrs[:leader][:id]).first
return render :json => {}, :status => :bad_request unless membership
attrs[:leader] = membership.user
end
if authorized_action(@group, @current_user, :update)
respond_to do |format|
@group.transaction do
@group.update_attributes(attrs.slice(*SETTABLE_GROUP_ATTRIBUTES))
if attrs[:members]
user_ids = Api.value_to_array(attrs[:members]).map(&:to_i).uniq
if @group.context
users = @group.context.users.where(id: user_ids)
else
users = User.where(id: user_ids)
end
@memberships = @group.set_users(users)
end
end
if !@group.errors.any?
@group.users.touch_all
flash[:notice] = t('notices.update_success', 'Group was successfully updated.')
format.html { redirect_to clean_return_to(params[:return_to]) || group_url(@group) }
format.json { render :json => group_json(@group, @current_user, session, {include: ['users', 'group_category', 'permissions']}) }
else
format.html { render :edit }
format.json { render :json => @group.errors, :status => :bad_request }
end
end
end
end
# @API Delete a group
#
# Deletes a group and removes all members.
#
# @example_request
# curl https://<canvas>/api/v1/groups/<group_id> \
# -X DELETE \
# -H 'Authorization: Bearer <token>'
#
# @returns Group
def destroy
find_group
if authorized_action(@group, @current_user, :delete)
if @group.destroy
flash[:notice] = t('notices.delete_success', "Group successfully deleted")
respond_to do |format|
format.html { redirect_to(dashboard_url) }
format.json { render :json => group_json(@group, @current_user, session) }
end
else
respond_to do |format|
format.html { redirect_to(dashboard_url) }
format.json { render :json => @group.errors, :status => :bad_request }
end
end
end
end
# @API Invite others to a group
#
# @subtopic Group Memberships
#
# Sends an invitation to all supplied email addresses which will allow the
# receivers to join the group.
#
# @argument invitees[] [Required, String]
# An array of email addresses to be sent invitations.
#
# @example_request
# curl https://<canvas>/api/v1/groups/<group_id>/invite \
# -F 'invitees[]=leonard@example.com' \
# -F 'invitees[]=sheldon@example.com' \
# -H 'Authorization: Bearer <token>'
def invite
find_group
if authorized_action(@group, @current_user, :manage)
root_account = @group.context.try(:root_account) || @domain_root_account
ul = UserList.new(params[:invitees],
root_account: root_account,
search_method: :preferred,
current_user: @current_user)
@memberships = []
ul.users.each{ |u| @memberships << @group.invite_user(u) }
render :json => @memberships.map{ |gm| group_membership_json(gm, @current_user, session) }
end
end
def accept_invitation
find_group
@membership = @group.group_memberships.where(:uuid => params[:uuid]).first if @group
@membership.accept! if @membership.try(:invited?)
if @membership.try(:active?)
flash[:notice] = t('notices.welcome', "Welcome to the group %{group_name}!", :group_name => @group.name)
respond_to do |format|
format.html { redirect_to(group_url(@group)) }
format.json { render :json => group_membership_json(@membership, @current_user, session) }
end
else
flash[:notice] = t('notices.invalid_invitation', "", :group_name => @group.name)
respond_to do |format|
format.html { redirect_to(dashboard_url) }
format.json { render :json => "Unable to find associated group invitation", :status => :bad_request }
end
end
end
def add_user
@group = @context
if authorized_action(@group, @current_user, :manage)
@membership = @group.add_user(User.find(params[:user_id]))
if @membership.valid?
@group.touch
render :json => @membership
else
render :json => @membership.errors, :status => :bad_request
end
end
end
def remove_user
@group = @context
if authorized_action(@group, @current_user, :manage)
@membership = @group.group_memberships.where(user_id: params[:user_id]).first
@membership.destroy
render :json => @membership
end
end
include Api::V1::User
# @API List group's users
#
# Returns a list of users in the group.
#
# @argument search_term [String]
# The partial name or full ID of the users to match and return in the
# results list. Must be at least 3 characters.
#
# @argument include[] [String, "avatar_url"]
# - "avatar_url": Include users' avatar_urls.
#
# @example_request
# curl https://<canvas>/api/v1/groups/1/users \
# -H 'Authorization: Bearer <token>'
#
# @returns [User]
def users
return unless authorized_action(@context, @current_user, :read)
search_term = params[:search_term].presence
if search_term
users = UserSearch.for_user_in_context(search_term, @context, @current_user, session)
else
users = UserSearch.scope_for(@context, @current_user)
end
users = Api.paginate(users, self, api_v1_group_users_url)
render :json => users_json(users, @current_user, session, Array(params[:include]), @context, nil, Array(params[:exclude]))
end
def public_feed
return unless get_feed_context(:only => [:group])
feed = Atom::Feed.new do |f|
f.title = t(:feed_title, "%{course_or_account_name} Feed", :course_or_account_name => @context.full_name)
f.links << Atom::Link.new(:href => group_url(@context), :rel => 'self')
f.updated = Time.now
f.id = group_url(@context)
end
@entries = []
@entries.concat @context.calendar_events.active
@entries.concat @context.discussion_topics.active
@entries.concat @context.wiki_pages
@entries = @entries.sort_by{|e| e.updated_at}
@entries.each do |entry|
feed.entries << entry.to_atom(:context => @context)
end
respond_to do |format|
format.atom { render :plain => feed.to_xml }
end
end
# @API Upload a file
#
# Upload a file to the group.
#
# This API endpoint is the first step in uploading a file to a group.
# See the {file:file_uploads.html File Upload Documentation} for details on
# the file upload workflow.
#
# Only those with the "Manage Files" permission on a group can upload files
# to the group. By default, this is anybody participating in the
# group, or any admin over the group.
def create_file
@attachment = Attachment.new(:context => @context)
if authorized_action(@attachment, @current_user, :create)
api_attachment_preflight(@context, request, :check_quota => true)
end
end
include Api::V1::PreviewHtml
# @API Preview processed html
#
# Preview html content processed for this group
#
# @argument html [String]
# The html content to process
#
# @example_request
# curl https://<canvas>/api/v1/groups/<group_id>/preview_html \
# -F 'html=<p><badhtml></badhtml>processed html</p>' \
# -H 'Authorization: Bearer <token>'
#
# @example_response
# {
# "html": "<p>processed html</p>"
# }
def preview_html
get_context
if @context && authorized_action(@context, @current_user, :read)
render_preview_html
end
end
include Api::V1::StreamItem
# @API Group activity stream
# Returns the current user's group-specific activity stream, paginated.
#
# For full documentation, see the API documentation for the user activity
# stream, in the user api.
def activity_stream
get_context
if authorized_action(@context, @current_user, :read)
api_render_stream(contexts: [@context], paginate_url: :api_v1_group_activity_stream_url)
end
end
# @API Group activity stream summary
# Returns a summary of the current user's group-specific activity stream.
#
# For full documentation, see the API documentation for the user activity
# stream summary, in the user api.
def activity_stream_summary
get_context
if authorized_action(@context, @current_user, :read)
api_render_stream_summary([@context])
end
end
protected
def find_group
if api_request?
@group = api_find(Group.active, params[:group_id])
else
@group = @context if @context.is_a?(Group)
@group ||= api_find(@context ? @context.groups : Group, params[:id])
end
end
end