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试卷的更新答案

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dev_hs
SylorHuang 6 years ago
parent 177d733da1
commit 03cfa68bf3
2 changed files with 169 additions and 78 deletions
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169
app/controllers/exercise_questions_controller.rb
Unescape View File

@ -178,6 +178,7 @@ class ExerciseQuestionsController < ApplicationController
def update
ActiveRecord::Base.transaction do
begin
standard_answer_change = false
# 更新试卷题目的内容
question_options = {
:question_title => params[:question_title],
@ -227,96 +228,103 @@ class ExerciseQuestionsController < ApplicationController
if standard_answer.present?
if @exercise_question.question_type <= Exercise::JUDGMENT #选择题/判断题，标准答案为一个或多个
exercise_standard_choices = @exercise_answers_array.pluck(:exercise_choice_id) #问题以前的全部标准答案选项位置
common_standard_choices = standard_answer & exercise_standard_choices # 传入的标准答案的选项位置和以前的并集，即表示不用做更改的
old_left_standard_choices = exercise_standard_choices - common_standard_choices # 以前的差集共同的，剩余的表示需要删掉
new_left_standard_choices = standard_answer - common_standard_choices # 传入的标准答案差集共同的，剩余的表示需要新建
if old_left_standard_choices.count > 0
@exercise_answers_array.standard_by_ids(old_left_standard_choices).destroy_all
end
if new_left_standard_choices.count > 0 #新建标准答案
new_left_standard_choices.each do |s|
standard_option = {
:exercise_question_id => @exercise_question.id,
:exercise_choice_id => s.to_i #即为选择的位置参数
}
question_standard_answer = ExerciseStandardAnswer.new(standard_option)
question_standard_answer.save
if exercise_standard_choices.sort != standard_answer.sort #表示答案有更改的
standard_answer_change = true
common_standard_choices = standard_answer & exercise_standard_choices # 传入的标准答案的选项位置和以前的并集，即表示不用做更改的
old_left_standard_choices = exercise_standard_choices - common_standard_choices # 以前的差集共同的，剩余的表示需要删掉
new_left_standard_choices = standard_answer - common_standard_choices # 传入的标准答案差集共同的，剩余的表示需要新建
if old_left_standard_choices.count > 0
@exercise_answers_array.standard_by_ids(old_left_standard_choices).destroy_all
end
if new_left_standard_choices.count > 0 #新建标准答案
new_left_standard_choices.each do |s|
standard_option = {
:exercise_question_id => @exercise_question.id,
:exercise_choice_id => s.to_i #即为选择的位置参数
}
question_standard_answer = ExerciseStandardAnswer.new(standard_option)
question_standard_answer.save
end
end
if standard_answer.count > 1 && @exercise_question.question_type == Exercise::SINGLE #当标准答案数大于1，且不为多选时，修改为多选
@exercise_question.update_attribute("question_type",Exercise::MULTIPLE)
elsif standard_answer.count == 1 && @exercise_question.question_type == Exercise::MULTIPLE
@exercise_question.update_attribute("question_type",Exercise::SINGLE)
end
if standard_answer.count > 1 && @exercise_question.question_type == Exercise::SINGLE #当标准答案数大于1，且不为多选时，修改为多选
@exercise_question.update_attribute("question_type",Exercise::MULTIPLE)
elsif standard_answer.count == 1 && @exercise_question.question_type == Exercise::MULTIPLE
@exercise_question.update_attribute("question_type",Exercise::SINGLE)
end
end
elsif @exercise_question.question_type == Exercise::COMPLETION #填空题
old_ex_answer = @exercise_question.exercise_standard_answers #当前问题的全部标准答案
old_ex_answer_choice_ids = old_ex_answer.pluck(:exercise_choice_id).uniq #全部的答案数组序号
new_ex_answer_choice_ids = standard_answer.map {|a| a[:choice_id]}.uniq #新传入的答案数组序号
#删除多余的选项
if old_ex_answer_choice_ids.count > new_ex_answer_choice_ids.count #有减少的填空
delete_ex_answer_choice_ids = old_ex_answer_choice_ids - new_ex_answer_choice_ids
old_ex_answer.standard_by_ids(delete_ex_answer_choice_ids).destroy_all
end
standard_answer.each do |aa|
null_choice_id = aa[:choice_id]
null_choice_text = aa[:answer_text]
null_choice_text_count = null_choice_text.count #当前传入的答案数量
null_choice_text_count_array = (1..null_choice_text_count).to_a
old_ex_answer_choice_texts = old_ex_answer.pluck(:answer_text).uniq.sort
new_ex_answer_choice_texts = standard_answer.pluck(:answer_text).sum.uniq.sort
if old_ex_answer_choice_texts != new_ex_answer_choice_texts #填空题标准答案有更改时，才会更新标准答案
new_ex_answer_choice_ids = standard_answer.map {|a| a[:choice_id]}.uniq #新传入的答案数组序号
old_ex_answer_choice_ids = old_ex_answer.pluck(:exercise_choice_id).uniq #全部的答案数组序号
standard_answer_change = true
#删除多余的选项
if old_ex_answer_choice_ids.count > new_ex_answer_choice_ids.count #有减少的填空
delete_ex_answer_choice_ids = old_ex_answer_choice_ids - new_ex_answer_choice_ids
old_ex_answer.standard_by_ids(delete_ex_answer_choice_ids).destroy_all
end
standard_answer.each do |aa|
null_choice_id = aa[:choice_id]
null_choice_text = aa[:answer_text]
null_choice_text_count = null_choice_text.count #当前传入的答案数量
null_choice_text_count_array = (1..null_choice_text_count).to_a
ex_answer_pre = old_ex_answer.standard_by_ids(null_choice_id) #当前问题的全部答案
ex_answer_pre_count = ex_answer_pre.count
ex_answer_pre_count_array = (1..ex_answer_pre_count).to_a
ex_answer_pre = old_ex_answer.standard_by_ids(null_choice_id) #当前问题的全部答案
ex_answer_pre_count = ex_answer_pre.count
ex_answer_pre_count_array = (1..ex_answer_pre_count).to_a
if old_ex_answer_choice_ids.include?(null_choice_id) #以前的填空题答案包含有现在的填空序号
if null_choice_text_count >= ex_answer_pre_count
new_add_choice = null_choice_text_count_array - ex_answer_pre_count_array
ex_answer_pre_count_array.each do |n|
standard_option = {
:exercise_question_id => @exercise_question.id,
:exercise_choice_id => null_choice_id,
:answer_text => null_choice_text[n-1]
}
ex_answer_pre[n-1].update(standard_option)
end
if new_add_choice.count > 0 #表示有新增的
new_add_choice.each do |i|
if old_ex_answer_choice_ids.include?(null_choice_id) #以前的填空题答案包含有现在的填空序号
if null_choice_text_count >= ex_answer_pre_count
new_add_choice = null_choice_text_count_array - ex_answer_pre_count_array
ex_answer_pre_count_array.each do |n|
standard_option = {
:exercise_question_id => @exercise_question.id,
:exercise_choice_id => null_choice_id,
:answer_text => null_choice_text[i-1]
:answer_text => null_choice_text[n-1]
}
question_standard_answer = ExerciseStandardAnswer.new(standard_option)
question_standard_answer.save
ex_answer_pre[n-1].update(standard_option)
end
if new_add_choice.count > 0 #表示有新增的
new_add_choice.each do |i|
standard_option = {
:exercise_question_id => @exercise_question.id,
:exercise_choice_id => null_choice_id,
:answer_text => null_choice_text[i-1]
}
question_standard_answer = ExerciseStandardAnswer.new(standard_option)
question_standard_answer.save
end
end
else
new_delete_choice = ex_answer_pre_count_array - null_choice_text_count_array
null_choice_text.each_with_index do |n,index|
standard_option = {
:exercise_question_id => @exercise_question.id,
:exercise_choice_id => null_choice_id,
:answer_text => n
}
ex_answer_pre[index].update(standard_option)
end
if new_delete_choice.count > 0 #表示填空题的答案有删减的
new_delete_choice.each do |d|
ex_answer_pre[d-1].destroy
end
end
end
else
new_delete_choice = ex_answer_pre_count_array - null_choice_text_count_array
null_choice_text.each_with_index do |n,index|
null_choice_text.each do |n|
standard_option = {
:exercise_question_id => @exercise_question.id,
:exercise_choice_id => null_choice_id,
:answer_text => n
}
ex_answer_pre[index].update(standard_option)
end
if new_delete_choice.count > 0 #表示填空题的答案有删减的
new_delete_choice.each do |d|
ex_answer_pre[d-1].destroy
end
question_standard_answer = ExerciseStandardAnswer.new(standard_option)
question_standard_answer.save
end
end
else
null_choice_text.each do |n|
standard_option = {
:exercise_question_id => @exercise_question.id,
:exercise_choice_id => null_choice_id,
:answer_text => n
}
question_standard_answer = ExerciseStandardAnswer.new(standard_option)
question_standard_answer.save
end
end
end
end
@ -348,20 +356,27 @@ class ExerciseQuestionsController < ApplicationController
#当试卷已发布时（试卷的总状态),当标准答案修改时，如有已提交的学生，需重新计算分数.
if @exercise.exercise_status >= Exercise::PUBLISHED
if standard_answer_change && @exercise.exercise_status >= Exercise::PUBLISHED
ex_users_committed = @exercise.exercise_users.exercise_user_committed
if ex_users_committed.size > 0
ex_users_committed.each do |ex_user|
user = ex_user.user
objective_score = calculate_student_score(@exercise,user)[:total_score]
subjective_score = ex_user.subjective_score
total_score_subjective_score = subjective_score < 0.0 ? 0.0 : subjective_score
total_score = objective_score + total_score_subjective_score
ex_user.update_attributes(objective_score:objective_score,score:total_score)
update_objective_score = update_single_score(@exercise_question,ex_user.user_id,standard_answer)
if update_objective_score != 0
objective_score = ex_user.objective_score
subjective_score = ex_user.subjective_score
total_score_subjective_score = subjective_score < 0.0 ? 0.0 : subjective_score
total_score = objective_score + update_objective_score + total_score_subjective_score
ex_user.update_attributes(objective_score:objective_score,score:total_score)
end
# user = ex_user.user
# objective_score = calculate_student_score(@exercise,user)[:total_score]
end
end
normal_status(0,"试卷更新成功,因标准答案修改,需重新计算学生成绩!")
else
normal_status(0,"试卷更新成功！")
end
normal_status(0,"试卷更新成功！")
rescue Exception => e
uid_logger_error(e.message)
tip_exception("页面调用失败！")

78
app/helpers/exercises_helper.rb
Unescape View File

@ -509,7 +509,7 @@ module ExercisesHelper
end
end
user_scores = answers_content.blank? ? 0.0 : answers_content.score_reviewed.pluck(:score).sum
if user_scores > 0.0
if user_scores > 0.0
stand_answer = 1
else
stand_answer = 0
@ -535,6 +535,82 @@ module ExercisesHelper
}
end
#当单个问题的分数更新时，更新用户的总分
def update_single_score(q,user_id,standard_answer)
score1 = 0.0 #用户的新得分
origin_score = 0.0 #用户的原来该问题的得分
answers_content = q&.exercise_answers&.where(user_id: user_id) #学生的答案
if answers_content.present? #用户回答了该题，才会改分数
if q.question_type <= 2 #为选择题或判断题时
origin_score = answers_content.first.score
answer_choice_array = []
answers_content.each do |a|
answer_choice_array.push(a.exercise_choice.choice_position) #学生答案的位置
end
user_answer_content = answer_choice_array.sort
#TODO: 旧版多选题的标准答案是放在一个里面的，新版又做成了一个题有多个标准答案（exercise_choice_id存放的是标准答案的位置..）
if q.question_type == 1 && standard_answer.size == 1
standard_answer = standard_answer.first.to_s.split("").map(&:to_i)
end
if user_answer_content == standard_answer #答案一致,多选或单选才给分，答案不对不给分
if standard_answer.size > 0
q_score_1 = q.question_score
else
q_score_1 = 0.0
end
answers_content.update_all(:score => q_score_1)
score1 = q_score_1
else
answers_content.update_all(:score => -1.0)
end
elsif q.question_type == 3 #填空题
origin_score = answers_content.score_reviewed.pluck(:score).sum
standard_answer_count = standard_answer.count
if standard_answer_count > 0 #存在标准答案时才有分数
q_score_2 = (q.question_score.to_f / standard_answer_count) #每一空的得分
else
q_score_2 = 0.0
end
if q.is_ordered
answers_content.each do |u|
i_standard_answer = []
standard_answer.each do |a|
if a[:choice_id] == u.exercise_choice_id
i_standard_answer += a[:answer_text]
end
end
i_standard_answer = i_standard_answer.map(&:downcase)
if i_standard_answer.include?(u.answer_text.downcase) #该空的标准答案包含用户的答案才有分数
u.update_column('score',q_score_2)
score1 = score1 + q_score_2
else
u.update_column('score',-1.0)
score1 += 0.0
end
end
else
st_answer_text = standard_answer.pluck(:answer_text).sum.map(&:downcase)
answers_content.each do |u|
u_answer_text = u.answer_text.downcase
if st_answer_text.include?(u_answer_text) #只要标准答案包含用户的答案，就有分数。同时，下一次循环时，就会删除该标准答案。防止用户的相同答案获分
u.update_column("score",q_score_2)
score1 = score1 + q_score_2
st_answer_text.delete(u_answer_text)
else
u.update_column('score',-1.0)
score1 += 0.0
end
end
end
end
end
origin_score = origin_score < 0.0 ? 0.0 : origin_score
score1 - origin_score
end
#获取用户的相关信息
def exercise_use_info(ex_user,user_status,exercise)
course = exercise.course

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