socialforge/app/helpers/exercise_helper.rb

152 lines
3.6 KiB
Ruby
Raw Blame History

This file contains ambiguous Unicode characters

This file contains Unicode characters that might be confused with other characters. If you think that this is intentional, you can safely ignore this warning. Use the Escape button to reveal them.

# encoding: utf-8
module ExerciseHelper
# 单选
def sigle_selection_standard_answer(params)
size = params.ord - 96
if size > 0 # 小写字母答案
answer = params.ord - 96
else
answer = params.ord - 64
end
end
# 多选
def multiselect_standard_answer(params)
size = params.ord - 96
answer = []
if size > 0 # 小写字母答案
for i in 0..(params.length-1)
answer << (params[i].ord - 96).to_s
end
else
for i in 0..(params.length-1)
answer << (params[i].ord - 64)
end
end
answer = answer.sort
answer.join("")
end
#
def fill_standart_answer(params, standart_answer)
params.each do |param|
standart_answer.answer_text = param.value
standart_answer.save
end
end
# 获取多选的得分
def get_mulscore(question, user)
ecs = ExerciseAnswer.where("user_id =? and exercise_question_id =?", user.id, question.id)
arr = []
ecs.each do |ec|
arr << ec.exercise_choice.choice_position
end
arr.sort
arr = arr.join("")
end
# 判断用户是否已经提交了问卷
# status 为0的时候是用户点击试卷。为1表示用户已经提交
def has_commit_exercise?(exercise_id, user_id)
pu = ExerciseUser.where("exercise_id=? and user_id=? and status=?",exercise_id, user_id, true)
if pu.empty?
false
else
true
end
end
# 判断学生是否点击过问卷点击则为他保存一个记录记录start_at
def has_click_exercise?(exercise_id, user_id)
pu = ExerciseUser.where("exercise_id=? and user_id=? and status=?",exercise_id, user_id, false)
if pu.empty?
false
else
true
end
end
def convert_to_char(str)
result = ""
length = str.length
unless str.nil?
if length === 1
result += (str.to_i + 64).chr
return result
elsif length > 1
for i in 0...length
result += (str[i].to_i + 64).chr
end
return result
end
end
return result
end
def get_current_score exercise
score = 0
unless exercise.nil?
exercise.exercise_questions.each do |exercise_question|
unless exercise_question.question_score.nil?
score += exercise_question.question_score
end
end
return score
end
return score
end
def answer_be_selected?(answer,user)
pv = answer.exercise_answers.where("#{ExerciseAnswer.table_name}.user_id = #{user.id} ")
if !pv.nil? && pv.count > 0
true
else
false
end
end
#获取未完成的题目
def get_uncomplete_question exercise,user
all_questions = exercise.exercise_questions
uncomplete_question = []
all_questions.each do |question|
answers = get_user_answer(question, user)
if answers.empty?
uncomplete_question << question
end
end
uncomplete_question
end
#获取文本题答案
def get_anwser_vote_text(question_id,user_id)
pv = ExerciseAnswer.find_by_exercise_question_id_and_user_id(question_id,user_id)
if pv.nil?
''
else
pv.answer_text
end
end
# 获取当前学生回答问题的答案
def get_user_answer(question,user)
user_answer = question.exercise_answers.where("#{ExerciseAnswer.table_name}.user_id = #{user.id}")
user_answer
end
# 获取问题的标准答案
def get_user_standard_answer(question,user)
if question.question_type == 3
standard_answer =[]
question.exercise_standard_answers.each do |answer|
standard_answer << answer.answer_text
end
else
standard_answer = question.exercise_standard_answers
end
standard_answer
end
end