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# authorization_time： 自动授权时间
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# auto_users_trial: 自动授权
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class School < ActiveRecord::Base
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attr_accessible :name, :province, :pinyin, :city, :address, :logo_link,
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:auto_users_trial, :shool_code, :authorization_time,
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:identifier, :is_online, :video_desc, :video_name,:course_link,
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:course_name, :partner_id, :customer_id
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has_many :courses
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has_many :departments, :dependent => :destroy
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has_many :shixun_schools, :dependent => :destroy
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has_many :shixuns, :through => :shixun_schools
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# 工程认证
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has_many :users, :through => :ec_school_users
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has_many :ec_school_users, :dependent => :destroy
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has_many :ec_majors, :through => :ec_major_schools
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has_many :ec_major_schools, :dependent => :destroy
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belongs_to :partner
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belongs_to :customer
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# banner图片信息
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has_many :school_images, :dependent => :destroy
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# 视频附件
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acts_as_attachable
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scope :authorization, lambda{where(auto_users_trial: 1)}
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def to_s
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self.name.to_s
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end
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def teacher_count
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User.find_by_sql("SELECT COUNT(users.`id`) AS teacher_count FROM users LEFT JOIN user_extensions ON
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users.id=user_extensions.user_id WHERE user_extensions.`school_id` = #{self.id} AND
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user_extensions.`identity` = 0").first.try(:teacher_count)
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end
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def student_count
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User.find_by_sql("SELECT COUNT(users.`id`) AS student_count FROM users LEFT JOIN user_extensions ON
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users.id=user_extensions.user_id WHERE user_extensions.`school_id` = #{self.id} AND
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user_extensions.`identity` = 1").first.try(:student_count)
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end
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def course_count
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Course.find_by_sql("SELECT COUNT(courses.`id`) AS course_count FROM courses LEFT JOIN user_extensions ON
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courses.tea_id=user_extensions.user_id WHERE user_extensions.`school_id` = #{self.id} AND
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courses.id != 1309").first.try(:course_count)
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end
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def shixun_count
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Shixun.find_by_sql("select count(s.id) as shixun_count from users u right join shixuns s on u.id=s.user_id and
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s.status in (2, 3) inner join user_extensions ue on u.id=ue.user_id and
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ue.school_id=#{self.id}").first.try(:shixun_count)
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end
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def shixun_report_count
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StudentWork.find_by_sql("SELECT count(*) as sw_count FROM `student_works` where user_id in
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(SELECT users.id FROM users RIGHT JOIN user_extensions ON users.id=user_extensions.user_id
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WHERE user_extensions.`school_id`=#{self.id}) and work_status between 1 and 2 and
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myshixun_id !=0").first.try(:sw_count)
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end
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def statistic_url
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dep = departments.where("identifier is not null").first
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url = dep.present? ? "/colleges/#{dep.identifier}/statistics" : ""
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end
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def course_act_time
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CourseActivity.find_by_sql("SELECT max(ca.updated_at) as max_update FROM course_activities ca left join courses on ca.course_id =
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courses.id LEFT JOIN user_extensions ON courses.tea_id=user_extensions.user_id WHERE
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user_extensions.`school_id` = #{self.id}").first.try(:max_update)
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end
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end
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