75 lines
2.0 KiB
Ruby
75 lines
2.0 KiB
Ruby
#
|
|
# Copyright (C) 2011 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/>.
|
|
#
|
|
|
|
# This is used for the GradebookImporter
|
|
require 'csv'
|
|
require 'ostruct'
|
|
|
|
class CSVParser
|
|
|
|
attr_reader :contents
|
|
|
|
# Not using opts, but to keep a standard API, I accept it and ignore it.
|
|
def initialize(contents, opts={})
|
|
@contents = contents
|
|
end
|
|
|
|
def gradebook
|
|
return @gradebook if @gradebook
|
|
@gradebook = blank_gradebook
|
|
trimmed_contents.each_with_index do |row,i|
|
|
row.each_with_index do |cell,j|
|
|
@gradebook[i][j].value = cell
|
|
end
|
|
end
|
|
@gradebook
|
|
end
|
|
|
|
# For a generic API, run is used to return a gradebook.
|
|
alias :run :gradebook
|
|
|
|
private
|
|
# Get n columns
|
|
def blank_row(n)
|
|
Array.new(n) {OpenStruct.new}
|
|
end
|
|
|
|
# Get n columns and m rows
|
|
def blank_gradebook
|
|
Array.new(num_rows) {blank_row(num_cols)}
|
|
end
|
|
|
|
# Slurps up the contents and converts them with CSV, returning an array of arrays.
|
|
def raw_contents
|
|
@raw_contents ||= CSV.parse( contents, :converters => :numeric )
|
|
end
|
|
|
|
# Deletes the notes row
|
|
def trimmed_contents
|
|
return @trimmed_contents if @trimmed_contents
|
|
@trimmed_contents = raw_contents.dup
|
|
@trimmed_contents.delete_at(1)
|
|
@trimmed_contents.each {|row| row.delete_at(1)}
|
|
@trimmed_contents
|
|
end
|
|
|
|
def num_rows; trimmed_contents.size end
|
|
def num_cols; trimmed_contents.first.size end
|
|
|
|
end
|