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class Shixun < ApplicationRecord
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# status: 0：编辑 1：申请发布 2：正式发布 3：关闭 -1：软删除
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has_many :challenges, dependent: :destroy
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has_many :myshixuns, :dependent => :destroy
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has_many :shixun_members, dependent: :destroy
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has_many :users, through: :shixun_members
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has_many :discusses, as: :dis, dependent: :destroy
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has_many :evaluate_records, dependent: :destroy
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has_many :shixun_mirror_repositories
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has_many :mirror_repositories, through: :shixun_mirror_repositories
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has_many :shixun_schools, :dependent => :destroy
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has_many :schools, :through => :shixun_schools
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has_many :shixun_tag_repertoires, dependent: :destroy
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has_many :tag_repertoires, through: :shixun_tag_repertoires
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has_one :first_shixun_tag_repertoire, class_name: 'ShixunTagRepertoire'
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has_one :first_tag_repertoire, through: :first_shixun_tag_repertoire, source: :tag_repertoire
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#实训的关卡
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has_many :exercise_shixun_challenges, :dependent => :destroy
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has_many :exercise_bank_shixun_challenges, :dependent => :destroy
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# 注意：这个地方是一张关联表，关联三张表（多对多关系）
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has_many :stage_shixuns, dependent: :destroy
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has_many :stages, through: :stage_shixuns
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has_many :subjects, through: :stage_shixuns
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has_one :shixun_info, dependent: :destroy
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belongs_to :user
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# 实训服务配置
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has_many :shixun_service_configs, :dependent => :destroy
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scope :search_by_name, ->(keyword) { where("name like ? or description like ? ",
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"%#{keyword}%", "%#{keyword}%") }
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#scope :include_user, ->(user_id) { where(id: Myshixun.where(user_id: user_id).pluck(:shixun_id))}
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scope :filter_tag, ->(tag_level, tag_id) {
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case tag_level
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when 1 #大类
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where(id: Repertoire.find(tag_id).tag_repertoires.joins(:shixun_tag_repertoires).pluck("shixun_tag_repertoires.shixun_id"))
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when 2 #子类
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where(id: SubRepertoire.find(tag_id).tag_repertoires.joins(:shixun_tag_repertoires).pluck("shixun_tag_repertoires.shixun_id"))
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when 3 #tag
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where(id: TagRepertoire.find(tag_id).shixun_tag_repertoires.pluck(:shixun_id))
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end
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}
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scope :visible, -> { where("status != -1") }
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scope :published, lambda{ where(status: 2) }
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scope :unhidden, lambda{ where(hidden: 0, status: 2) }
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scope :field_for_recommend, lambda{ select([:id, :name, :identifier, :myshixuns_count]) }
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scope :find_by_ids,lambda{|k| where(id:k)}
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# REDO:
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def propaedeutics
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shixun_info.try(:propaedeutics)
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end
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def description
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shixun_info.try(:description)
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end
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def evaluate_script
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shixun_info.try(:evaluate_script)
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end
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# 实训用户tag
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def user_tags_name(user = User.current)
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challenge_ids = challenges.pluck(:id)
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user_challenge_ids = user.games.where(challenge_id: challenge_ids, status: 2).pluck(:challenge_id)
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ChallengeTag.where(challenge_id: user_challenge_ids).pluck(:name).uniq
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end
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# 实训关卡tag
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def challenge_tags_name
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ChallengeTag.where(challenge_id: challenges.pluck(:id)).pluck(:name).uniq
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end
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def repo_path
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"#{repo_name}.git"
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end
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# 实训对应的镜像主类别名（已选）
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def main_mirror_name
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mirror_repositories.published_main_mirror.first.try(:type_name) || ""
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end
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def main_mirror_id
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mirror_repositories.published_main_mirror.first.try(:id) || -1
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end
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# 实训对应的镜像小类别名（已选）
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def small_mirror_name
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mirror_repositories.published_small_mirror.map(&:type_name)
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end
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def small_mirror_id
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mirror_repositories.published_small_mirror.map(&:id)
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end
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# 实训镜像名
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def mirror_name
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names = mirror_repositories.map(&:type_name)
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names.blank? ? '' : names
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end
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def script_tag
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return unless mirror_script_id
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MirrorScript.find_by_id(mirror_script_id)
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end
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def standrad_script
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mirrors_id = mirror_repositories.map(&:id)
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mirror_scripts = MirrorScript.where(mirror_repository_id: mirrors_id)
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mirror_scripts.map { |ms| { scptname: ms.script_type, id: ms.id } }
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end
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def owner
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User.find(self.user_id)
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end
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def is_published?
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status > 1
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end
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# 当前用户开启的实训
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def current_myshixun(user_id)
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myshixuns.find_by(user_id: user_id)
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end
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# 实训技术平台
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def show_shixun_mirror
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mirror_repositories.map(&:type_name).join(';')
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end
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# 实训评分 cnt-评分次数 sum-总评分
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def shixun_preference
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game_star_info = Game.find_by_sql("select g.star from
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(games g left join (myshixuns m join shixuns s on s.id = m.shixun_id) on m.id = g.myshixun_id)
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where g.star != 0 and s.id = #{self.id}")
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if game_star_info.present?
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cnt = game_star_info.count
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sum = game_star_info.sum(&:star).to_f
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(sum / cnt.to_f).round(1)
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else
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5.0
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end
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end
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# 实训评分信息
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# return [实训评分， 5星评分比例， 4星评分比例， 3星评分比例， 2星评分比例， 1星评分比例]
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def shixun_preference_info
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game_star_info = Game.find_by_sql("select g.star from
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(games g left join (myshixuns m join shixuns s on s.id = m.shixun_id) on m.id = g.myshixun_id)
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where g.star != 0 and s.id = #{self.id}")
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star_info = []
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if game_star_info.present?
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5.downto(1) do |i|
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star_info << ((game_star_info.select{|s| s.star == i}.count / game_star_info.count.to_f) * 100).round
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end
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sum = star_info.sum
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max = star_info.max
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# 四舍五入引起5星比例超过100%， 将最大的比例的评分做出调整
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if sum > 100
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star_info = star_info.map{|s| s == max ? s - 1 : s}
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elsif sum < 100
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star_info = star_info.map{|s| s == max ? s + 1 : s}
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end
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cnt = game_star_info.count
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sum = game_star_info.sum(&:star)
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star_info.unshift((sum / cnt.to_f).round(1))
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else
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star_info = [5.0, 100, 0, 0, 0, 0]
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end
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star_info
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end
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# 实训关卡的总分(由于大部分是实践题,因此没关联查choose表)
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# 提前加载问题：由于选择题比较少，所以几乎不会触发选择题的查询，所以没必要提前载入choose_score
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def all_score
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sum = 0
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challenges.each do |challenge|
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sum += challenge.st == 0 ? challenge.score : challenge.choose_score
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end
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sum
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end
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### fork 数量
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def fork_count
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self.class.where(fork_from: id).count
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end
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# 学员等级
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def shixun_trainee
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case trainee
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when 1 then '初级学员'
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when 2 then '中级学员'
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when 3 then '高级学员'
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when 4 then '顶级学员'
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else ''
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end
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end
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def shixun_level
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case trainee
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when 1 then '初级'
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when 2 then '中级'
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when 3 then '高级'
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when 4 then '顶级'
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else ''
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end
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end
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# 纯选择提类型
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def is_choice_type?
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challenges_count == challenges.where(st: 1).count
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end
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# 实训受用学校个数
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def school_count
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UserExtension.find_by_sql("select count(distinct ue.school_id) school_count from user_extensions ue right join myshixuns
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on ue.user_id = myshixuns.user_id where myshixuns.shixun_id = #{self.id}").first.try(:school_count).to_i
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end
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def has_manager?(user)
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return true if user.admin?
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shixun_members.where(role: [1, 2]).exists?(user_id: user.id)
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end
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def finished_challenges_count(user)
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Game.joins(:myshixun).where(user_id: user.id, status: 2, myshixuns: { shixun_id: id }).count
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end
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end
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