canvas-lms/app/controllers/grading_periods_controller.rb

330 lines
10 KiB
Ruby

#
# Copyright (C) 2014 - 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/>.
#
# @API Grading Periods
# @beta
# Manage grading periods
#
# @model GradingPeriod
# {
# "id": "GradingPeriod",
# "required": ["id", "start_date", "end_date"],
# "properties": {
# "id": {
# "description": "The unique identifier for the grading period.",
# "example": 1023,
# "type": "integer"
# },
# "title": {
# "description": "The title for the grading period.",
# "example": "First Block",
# "type": "string"
# },
# "start_date": {
# "description": "The start date of the grading period.",
# "example": "2014-01-07T15:04:00Z",
# "type": "string",
# "format": "date-time"
# },
# "end_date": {
# "description": "The end date of the grading period.",
# "example": "2014-05-07T17:07:00Z",
# "type": "string",
# "format": "date-time"
# },
# "close_date": {
# "description": "Grades can only be changed before the close date of the grading period.",
# "example": "2014-06-07T17:07:00Z",
# "type": "string",
# "format": "date-time"
# },
# "weight": {
# "description": "A weight value that contributes to the overall weight of a grading period set which is used to calculate how much assignments in this period contribute to the total grade",
# "type": "integer",
# "example": "33.33"
# }
# }
# }
#
class GradingPeriodsController < ApplicationController
before_action :require_user
before_action :get_context
# @API List grading periods
# @beta
#
# Returns the list of grading periods for the current course.
#
# @example_response
# {
# "grading_periods": [GradingPeriod]
# }
#
def index
if authorized_action(@context, @current_user, :read)
if @context.is_a? Account
grading_periods = @context.grading_periods.active.order(:start_date)
read_only = false
else
grading_periods = GradingPeriod.for(@context).order(:start_date)
read_only = grading_periods.present? && grading_periods.first.grading_period_group.account_id.present?
end
paginated_grading_periods, meta = paginate_for(grading_periods)
respond_to do |format|
format.json do
render json: serialize_json_api(paginated_grading_periods, meta)
.merge(index_permissions)
.merge(grading_periods_read_only: read_only)
end
end
end
end
# @API Get a single grading period
# @beta
#
# Returns the grading period with the given id
#
# @example_response
# {
# "grading_periods": [GradingPeriod]
# }
#
def show
if authorized_action(grading_period, @current_user, :read)
respond_to do |format|
format.json { render json: serialize_json_api(grading_period) }
end
end
end
# @API Update a single grading period
# @beta
#
# Update an existing grading period.
#
# @argument grading_periods[][start_date] [Required, Date]
# The date the grading period starts.
#
# @argument grading_periods[][end_date] [Required, Date]
#
# @argument grading_periods[][weight] [Float]
# A weight value that contributes to the overall weight of a grading period set which is used to calculate how much assignments in this period contribute to the total grade
#
# @example_response
# {
# "grading_periods": [GradingPeriod]
# }
#
def update
grading_period_params = params.require(:grading_periods).first.permit(:weight, :start_date, :end_date, :close_date, :title)
if authorized_action(grading_period(inherit: false), @current_user, :update)
respond_to do |format|
if grading_period(inherit: false).update_attributes(grading_period_params)
format.json { render json: serialize_json_api(grading_period(inherit: false)) }
else
format.json do
render json: grading_period(inherit: false).errors, status: :unprocessable_entity
end
end
end
end
end
# @API Delete a grading period
# @beta
#
# <b>204 No Content</b> response code is returned if the deletion was
# successful.
def destroy
if authorized_action(grading_period(inherit: false), @current_user, :delete)
grading_period(inherit: false).destroy
respond_to do |format|
format.json { head :no_content }
end
end
end
def batch_update
if authorized_action(@context, @current_user, :manage_grades)
method("#{@context.class.to_s.downcase}_batch_update").call
end
end
private
def grading_period(inherit: true)
@grading_period ||= begin
grading_period = GradingPeriod.for(@context, inherit: inherit).find_by(id: params[:id])
fail ActionController::RoutingError.new('Not Found') if grading_period.blank?
grading_period
end
end
def account_batch_update
grading_period_group = GradingPeriodGroup.active.find(params.fetch(:set_id))
periods = find_or_build_periods(params.require(:grading_periods), grading_period_group)
unless batch_update_rights?(periods)
return render_unauthorized_action
end
grading_period_group.grading_periods.transaction do
errors = no_overlapping_for_new_periods_validation_errors(periods)
.concat(validation_errors(periods))
respond_to do |format|
if errors.present?
format.json do
render json: {errors: errors}, status: :unprocessable_entity
end
else
periods.each(&:save!)
format.json do
render json: unpaginated_json_api(periods)
end
end
end
end
end
def course_batch_update
grading_period_group = @context.grading_period_groups.active.first_or_create
periods = find_or_build_periods(params[:grading_periods], grading_period_group)
unless batch_update_rights?(periods)
return render_unauthorized_action
end
unless can_batch_update_in_context?(periods)
return render_unauthorized_action
end
@context.grading_periods.transaction do
errors = no_overlapping_for_new_periods_validation_errors(periods)
.concat(validation_errors(periods))
respond_to do |format|
if errors.present?
format.json do
render json: {errors: errors}, status: :unprocessable_entity
end
else
periods.each(&:save!)
paginated_periods, meta = paginate_for(periods)
format.json do
render json: serialize_json_api(paginated_periods, meta)
end
end
end
end
end
def get_context
return super unless params[:set_id].present?
set_subquery = GradingPeriodGroup.active.select(:account_id).where(id: params[:set_id])
@context = Account.active.where(id: set_subquery).take
render json: {message: t('Page not found')}, status: :not_found unless @context
end
# model level validations
def validation_errors(periods)
periods.select(&:invalid?).map(&:errors)
end
# validate no overlapping check on newly built collection
def no_overlapping_for_new_periods_validation_errors(periods)
sorted_periods = periods.sort_by(&:start_date)
sorted_periods.each_cons(2) do |first_period, second_period|
# skip not_overlapping model validation in model level
first_period.skip_not_overlapping_validator
second_period.skip_not_overlapping_validator
if second_period.start_date.change(sec: 0) < first_period.end_date.change(sec: 0)
second_period.errors.add(:start_date, 'Start Date overlaps with another period')
end
end
sorted_periods.select { |period| period.errors.present? }.map(&:errors)
end
def find_or_build_periods(periods_params, grading_period_group)
periods_params.map do |period_params|
if period_params[:id].present?
period = grading_period_group.grading_periods.active.find(period_params[:id])
else
period = grading_period_group.grading_periods.build
end
period.assign_attributes(period_params.permit(:weight, :start_date, :end_date, :close_date, :title))
period
end
end
def batch_update_rights?(periods)
new_periods, existing_periods = periods.partition(&:new_record?)
current_user_can_create?(new_periods) &&
current_user_can_update?(existing_periods)
end
def current_user_can_create?(periods)
periods.all? { |p| p.grants_right?(@current_user, :create) }
end
def current_user_can_update?(periods)
periods.all? { |p| p.grants_right?(@current_user, :update) }
end
def can_batch_update_in_context?(periods)
periods.empty? || periods.first.grading_period_group.account_id.blank?
end
def paginate_for(grading_periods)
paginated_grading_periods, meta = Api.jsonapi_paginate(grading_periods, self, named_context_url(@context, :api_v1_context_grading_periods_url))
meta[:primaryCollection] = 'grading_periods'
[paginated_grading_periods, meta]
end
def unpaginated_json_api(grading_periods)
grading_periods = Array.wrap(grading_periods)
Canvas::APIArraySerializer.new(grading_periods, {
each_serializer: GradingPeriodSerializer,
controller: self,
root: :grading_periods,
scope: @current_user,
include_root: false
}).as_json
end
def serialize_json_api(grading_periods, meta = {})
grading_periods = Array.wrap(grading_periods)
Canvas::APIArraySerializer.new(grading_periods, {
each_serializer: GradingPeriodSerializer,
controller: self,
root: :grading_periods,
meta: meta,
scope: @current_user,
include_root: false
}).as_json
end
def index_permissions
can_create_grading_periods = @context.is_a?(Account) &&
@context.root_account? && @context.grants_right?(@current_user, :manage)
{can_create_grading_periods: can_create_grading_periods}.as_json
end
end