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117 lines
5.0 KiB
117 lines
5.0 KiB
class ExerciseAnswersController < ApplicationController
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before_action :require_login
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before_action :get_exercise_question
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def create #每一次答案的点击，请求一次，实训题不在这里回答
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ActiveRecord::Base.transaction do
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begin
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q_type = @exercise_question.question_type #试卷的类型
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choice_id = params[:exercise_choice_id].present? ? params[:exercise_choice_id] : ""
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answer_text = params[:answer_text].present? ? params[:answer_text] : "" #为字符串
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if q_type < 4 && choice_id.blank?
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normal_status(-1,"请选择序号")
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else
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ea = @exercise_question.exercise_answers.search_answer_users("user_id",current_user.id) #试卷的当前用户的答案
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if q_type == 0 || q_type == 2 #选择题（单选）/判断题
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ea_choice = ea.search_exercise_answer("exercise_choice_id",choice_id).first
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answer_option = {
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:user_id => current_user.id,
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:exercise_question_id => @exercise_question.id,
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:exercise_choice_id => choice_id,
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:answer_text => ""
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}
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if ea_choice.present? #如果当前用户的答案存在，再次点击，即为删除
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ea_choice.destroy
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else
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if @exercise_question.exercise_standard_answers.count <= 1 #单选题的时候
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ea.first.destroy if ea.present?
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end
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ex_a = ExerciseAnswer.new(answer_option)
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ex_a.save!
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end
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elsif q_type == 1 #多选题的
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choice_ids = params[:exercise_choice_id].present? ? params[:exercise_choice_id] : []
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ea_ids = ea.pluck(:exercise_choice_id)
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common_answer_ids = choice_ids & ea_ids #已经存在的试卷选项id
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new_ids = choice_ids - common_answer_ids # 新增的id
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old_ids = ea_ids - common_answer_ids #没有选择的，则删掉
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if new_ids.size > 0
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new_ids.each do |e|
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answer_option = {
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:user_id => current_user.id,
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:exercise_question_id => @exercise_question.id,
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:exercise_choice_id => e,
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:answer_text => ""
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}
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ex_a = ExerciseAnswer.new(answer_option)
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ex_a.save!
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end
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end
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if old_ids.size > 0
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ea_answer = ea.search_answer_users("exercise_choice_id",old_ids)
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ea_answer.destroy_all
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end
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elsif q_type == 3 #填空题
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answer_option = {
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:user_id => current_user.id,
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:exercise_question_id => @exercise_question.id,
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:exercise_choice_id => choice_id,
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:answer_text => answer_text
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}
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ea_answer = ea.search_answer_users("exercise_choice_id",choice_id)
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if ea.present? && ea_answer.present?
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ea_answer.update(answer_option)
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else
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ex_new = ExerciseAnswer.new(answer_option)
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ex_new.save!
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end
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elsif q_type == 4 #简答题
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answer_option = {
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:user_id => current_user.id,
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:exercise_question_id => @exercise_question.id
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}
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if ea.present? #已经回答了的，
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ea.first.update_attribute("answer_text",answer_text)
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else
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answer_option.merge!(answer_text:answer_text)
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ex_a = ExerciseAnswer.new(answer_option)
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ex_a.save!
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end
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end
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normal_status(0,"回答成功")
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end
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rescue Exception => e
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uid_logger_error(e.message)
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tip_exception("页面调用失败！")
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raise ActiveRecord::Rollback
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end
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end
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end
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private
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def get_exercise_question
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@exercise_question = ExerciseQuestion.find_by_id(params[:exercise_question_id])
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@exercise = @exercise_question.exercise
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@course = @exercise.course
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@exercise_user = @exercise.exercise_users.exercise_commit_users(current_user.id).first #当前用户
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if @exercise_question.blank?
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normal_status(-1,"试卷问题不存在！")
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elsif @exercise.blank?
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normal_status(-1,"试卷不存在！")
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elsif @course.blank?
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normal_status(-1,"该课堂不存在！")
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elsif (@exercise_user.present? && @exercise_user.commit_status == 1) || (@exercise.end_time.present? && @exercise.end_time < Time.now) #已提交答案的/时间已结束的试卷不允许再修改
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normal_status(-1,"已提交/已结束的试卷不允许修改！")
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elsif @exercise.time > 0
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user_start_at = @exercise.exercise_users.exercise_commit_users(current_user.id).first.start_at
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exercise_time = @exercise.time.to_i
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if (user_start_at + exercise_time.minutes) < Time.now
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normal_status(-1,"限时试卷已结束！")
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end
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end
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end
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end
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