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educoder/app/services/exercise_user_pdf_service.rb

90 lines
3.3 KiB

6 years ago
class ExerciseUserPdfService
include ExercisesHelper
include ApplicationHelper
include StudentWorksHelper
attr_reader :exercise, :ex_user
def initialize(exercise, ex_user)
@exercise = exercise
@ex_user = ex_user
@ex_user_user = @ex_user.user
@course = @exercise.course
end
def filename
user_course = @course.course_members.find_by(user_id:@ex_user_user.id).course_group_name
exercise_user_name = user_course + "_" + exercise.exercise_name + "_" + @ex_user_user.real_name
"#{exercise_user_name.strip}.pdf"
end
def prepare_binding
load_data
binding
end
def ex_pdf
generate_pdf
end
private
def generate_pdf
file = File.open(Rails.root.join('app/templates/exercise_export/exercise_user.html.erb'))
html = ERB.new(file.read).result(prepare_binding)
kit = PDFKit.new(html)
base_css = %w(app/templates/exercise_export/exercise_export.css)
base_css.each { |css| kit.stylesheets << Rails.root.join(css) }
#-----正式需删掉
# aa = File.open(Rails.root.join("public/123.html"),"w+")
# aa.syswrite(kit.source)
#正式需删掉-------
file = Tempfile.new(filename)
kit.to_pdf(file.path)
file
end
def load_data
@exercise_questions = exercise.exercise_questions
@exercise_ques_count = @exercise_questions.count # 全部的题目数
@exercise_ques_scores = @exercise_questions.pluck(:question_score).sum
#单选题的数量及分数
exercise_single_ques = @exercise_questions.find_by_custom("question_type",0)
@exercise_single_ques_count = exercise_single_ques.all.count
@exercise_single_ques_scores = exercise_single_ques.pluck(:question_score).sum
#多选题的数量及分数
exercise_double_ques = @exercise_questions.find_by_custom("question_type",1)
@exercise_double_ques_count = exercise_double_ques.all.count
@exercise_double_ques_scores = exercise_double_ques.pluck(:question_score).sum
# 判断题数量及分数
exercise_ques_judge = @exercise_questions.find_by_custom("question_type",2)
@exercise_ques_judge_count = exercise_ques_judge.all.count
@exercise_ques_judge_scores = exercise_ques_judge.pluck(:question_score).sum
#填空题数量及分数
exercise_ques_null = @exercise_questions.find_by_custom("question_type",3)
@exercise_ques_null_count = exercise_ques_null.all.count
@exercise_ques_null_scores = exercise_ques_null.pluck(:question_score).sum
#简答题数量及分数
exercise_ques_main = @exercise_questions.find_by_custom("question_type",4)
@exercise_ques_main_count = exercise_ques_main.all.count
@exercise_ques_main_scores = exercise_ques_main.pluck(:question_score).sum
#实训题数量及分数
exercise_ques_shixun = @exercise_questions.find_by_custom("question_type",5)
@exercise_ques_shixun_count = exercise_ques_shixun.all.count
@exercise_ques_shixun_scores = exercise_ques_shixun.pluck(:question_score).sum
challenge_ids = @exercise_questions.joins(:exercise_shixun_challenges).pluck("exercise_shixun_challenges.challenge_id")
get_each_student_exercise(exercise.id,@exercise_questions,@ex_user_user.id)
@games = @exercise_user.user.games.ch_games(challenge_ids)
end
end