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class PollBankQuestionsController < ApplicationController
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before_action :require_login, :check_auth #用户需登陆
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before_action :get_poll, only:[:create] #获取试卷
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before_action :get_poll_question, except: [:create] #获取试卷的问题及试卷
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before_action :bank_admin #是否为老师
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before_action :validates_params, only: [:create, :update] #传入参数的验证
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def create
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ActiveRecord::Base.transaction do
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begin
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poll_options = {
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:question_title => params[:question_title],
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:question_type => params[:question_type],
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:is_necessary => params[:is_necessary].to_i,
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:question_number => @poll.exercise_bank_questions.count + 1,
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:max_choices => params[:max_choices] || nil,
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:min_choices => params[:min_choices] || nil
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}
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@poll_question = @poll.exercise_bank_questions.new(poll_options)
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if params[:insert_id].present? #插入问题时，那么从插入的这个id以后的question_num都将要+1
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insert_poll = @poll.exercise_bank_questions.find_by(id: params[:insert_id])
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if insert_poll.present? #如果该问题存在的话，意思是如果是第一题，那么就不存在插入
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ques_num = insert_poll.question_number.to_i
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@poll_question.question_number = ques_num + 1 #更新了问题的位置
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@poll.exercise_bank_questions.insert_question_ex(ques_num).update_all("question_number = question_number + 1")
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end
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end
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if @poll_question.save!
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if params[:question_type] != 3
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p_answer = params[:question_answers]
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p_other_answer = params[:question_other_answer]
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# 新增选择题答案选择的选项
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(1..p_answer.count).each do |i|
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answer = p_answer[i-1] # 传入的答案的内容
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question_option = {
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:choice_position => i,
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:choice_text => answer
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}
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poll_answers = @poll_question.exercise_bank_choices.new question_option
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poll_answers.save
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end
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# 新增答案的其他选项
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if p_other_answer
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question_option = {
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:choice_position => p_answer.count + 1,
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:choice_text => ''
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}
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poll_answers = @poll_question.exercise_bank_choices.new question_option
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poll_answers.save
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end
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end
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end
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normal_status("创建成功")
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rescue Exception => e
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uid_logger_error(e.message)
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tip_exception("问卷的问题创建失败！")
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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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def update
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ActiveRecord::Base.transaction do
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begin
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if @poll_question.question_type < 3 #当为单选题或多选题时
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p_answer = params[:question_answers]
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p_other_answer = params[:question_other_answer]
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p_answer_count = p_answer.count
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@poll_question.exercise_bank_choices.each do |an|
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if (p_answer_count < @poll_current_answers) && (p_answer_count..@poll_current_answers).to_a.include?(an.choice_position)
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an.destroy
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end
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end
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(1..p_answer_count).each do |i|
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answer = @poll_question.exercise_bank_choices.find_by_custom("choice_position",i).first
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if answer # 判断该位置的answer是否存在，存在则更新.不存在则跳到下一步
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answer.choice_text = p_answer[i-1]
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answer.choice_position = i
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answer.save
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else
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answer_options = {
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:choice_position => i,
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:choice_text => p_answer[i-1]
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}
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@poll_question.exercise_bank_choices.new answer_options
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end
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end
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if p_other_answer #判断答案的其他选项是否存在
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other_answer = @poll_question.exercise_bank_choices.find_by_custom("choice_text","").first
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if other_answer.blank?
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question_option = {
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:choice_position => p_answer_count + 1,
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:choice_text => ''
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}
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@poll_question.exercise_bank_choices.new question_option
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else
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other_answer.choice_position = p_answer_count + 1
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other_answer.save
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end
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end
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end
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@poll_question.update_attributes(poll_questions_params)
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normal_status("问卷更新成功")
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rescue Exception => e
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uid_logger_error(e.message)
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tip_exception("更新失败")
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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 bank_admin
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tip_exception(403, "无权限") unless @bank.user_id == current_user.id || current_user.admin?
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end
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def get_poll
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@poll = ExerciseBank.find_by!(id: params[:exercise_bank_id])
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end
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def get_poll_question
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@poll_question = ExerciseBankQuestion.find_by!(id: params[:id])
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@poll = @poll_question.exercise_bank
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end
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def poll_questions_params
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params.require(:poll_question).permit(:question_title,:question_type,:is_necessary,:question_number,:max_choices,:min_choices)
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end
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def validates_params
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normal_status(-1, "问题标题不能为空！") if params[:question_title].blank?
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normal_status(-1, "是否要求必答的值不能为空！") if params[:is_necessary].blank?
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normal_status(-1, "问题类型不能为空！") if params[:question_type].blank?
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if params[:min_choices].present? && params[:max_choices].present? && (params[:min_choices].to_i > params[:max_choices].to_i)
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normal_status(-1, "最小可选不能大于最大可选！")
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elsif params[:question_answers].present? && (params[:max_choices].to_i > params[:question_answers].count)
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normal_status(-1, "选择题的最大可选项不能大于答案数！")
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elsif [1,3].include?(params[:question_type]) && (params[:max_choices].to_i > 0 || params[:min_choices].to_i > 0)
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normal_status(-1, "单选题或主观题不能有最大或最小选择数！")
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elsif params[:question_type] == 3 && (params[:question_answers] || params[:question_other_answer])
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normal_status(-1, "主观问题不需要可选答案！")
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elsif params[:question_type] != 3
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if params[:question_answers].present? && params[:question_answers].include?("")
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normal_status(-1, "选择题不能有空值！")
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elsif params[:question_other_answer].present? && params[:question_other_answer].length > 0
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normal_status(-1, "其他选项不能有值！")
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elsif params[:question_type] == 1 && params[:question_answers].count < 2
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normal_status(-1, "单选题选项不能小于2！")
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elsif params[:question_type] == 2 && params[:question_answers].count < 3
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normal_status(-1, "多选题选项不能小于3！")
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end
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end
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end
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end
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