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educoder/app/services/export_exercises_service.rb

36 lines
1.0 KiB

class ExportExercisesService
include ExercisesHelper
include StudentWorksHelper
attr_reader :exercise, :ex_users, :request_url
def initialize(exercise, ex_users, request_url)
@exercise = exercise
@ex_users = ex_users
@request_url = request_url
end
def filename
exercise_export_name = "#{exercise.user.real_name}_#{exercise.exercise_name}_#{Time.now.strftime('%Y%m%d_%H%M%S')}"
"#{exercise_export_name.strip}.zip"
end
def ex_zip
zip_file = Tempfile.new(filename)
pdfs = []
Zip::File.open(zip_file.path, Zip::File::CREATE) do |zip|
ex_users.each do |ex_user|
export = ExerciseUserPdfService.new(exercise, ex_user,@request_url)
pdf = export.ex_pdf
pdfs << pdf
begin
zip.add(export.filename, pdf.path)
rescue => ex
Rails.logger.error(ex.message)
zip.get_output_stream('FILE_NOTICE.txt'){|os| os.write("文件重复:#{export.filename}") }
end
end
zip_file
end
end
end