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class Admins::StatisticSchoolDataGrowService < ApplicationService
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include CustomSortable
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PAGE_SIZE = 20
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attr_reader :params
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sort_columns :teacher_increase_count, :student_increase_count,
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:course_increase_count, :shixun_increase_count, :uniq_active_user_count,
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:shixun_homework_count, :shixun_evaluate_count,
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default_by: :teacher_increase_count, default_direction: :desc
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def initialize(params)
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@params = params
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end
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def call
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reports = School.where(nil)
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reports = search_filter(reports)
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count = reports.count
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subquery = SchoolDailyActiveUser.select('COUNT(distinct(user_id))').joins(:school_daily_report)
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.where(date_condition_sql).where("school_id is not null and school_id = schools.id").to_sql
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reports = reports.joins("LEFT JOIN school_daily_reports sdr ON sdr.school_id = schools.id AND #{date_condition_sql}")
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reports = reports.select(
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'schools.id school_id, schools.name school_name,'\
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'SUM(teacher_increase_count) teacher_increase_count,'\
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'SUM(student_increase_count) student_increase_count,'\
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'SUM(course_increase_count) course_increase_count,'\
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'SUM(shixun_increase_count) shixun_increase_count,'\
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'SUM(shixun_homework_count) shixun_homework_count,'\
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'SUM(shixun_evaluate_count) shixun_evaluate_count,'\
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"(#{subquery}) uniq_active_user_count,"\
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'SUM(active_user_count) active_user_count').group('schools.id')
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reports = custom_sort(reports, params[:sort_by], params[:sort_direction])
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reports = reports.order('school_id asc').limit(PAGE_SIZE).offset(offset)
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[count, reports]
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end
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def grow_summary
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@_grow_summary ||= begin
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reports = School.joins("LEFT JOIN school_daily_reports sdr ON sdr.school_id = schools.id")
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.where(date_condition_sql)
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subquery = SchoolDailyActiveUser.select('COUNT(distinct user_id)')
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.joins('LEFT JOIN school_daily_reports sdr ON sdr.id = school_daily_active_users.school_daily_report_id')
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.where(date_condition_sql).to_sql
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reports = search_filter(reports)
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reports.select(
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'SUM(teacher_increase_count) teacher_increase_count,'\
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'SUM(student_increase_count) student_increase_count,'\
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'SUM(course_increase_count) course_increase_count,'\
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'SUM(shixun_increase_count) shixun_increase_count,'\
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'SUM(shixun_homework_count) shixun_homework_count,'\
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'SUM(shixun_evaluate_count) shixun_evaluate_count,'\
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"(#{subquery}) uniq_active_user_count,"\
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'SUM(active_user_count) active_user_count'
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).first
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end
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end
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private
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def search_filter(relations)
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keyword = params[:keyword].try(:to_s).try(:strip)
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if keyword.present?
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relations = relations.where("schools.name LIKE :keyword OR schools.id LIKE :keyword", keyword: "%#{keyword}%")
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end
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relations
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end
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def date_condition_sql
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date = query_date
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if date.is_a?(Range)
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"date BETWEEN '#{date.min.strftime('%Y-%m-%d')}' AND '#{date.max.strftime('%Y-%m-%d')}'"
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else
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"date = '#{date.strftime('%Y-%m-%d')}'"
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end
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end
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def query_date
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if params[:grow_begin_date].present?
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begin_time = Time.zone.parse(params[:grow_begin_date])
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end_date = if params[:grow_end_date].present?
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Time.zone.parse(params[:grow_end_date])
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end
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end_date.blank? || end_date == begin_time ? begin_time : begin_time..end_date
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else
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yesterday
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end
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end
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def yesterday
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# 每日凌晨5点为节点, 25日凌晨4点、3点、2点等等，未到更新数据时间点，看到的数据是：23日-24日的统计数据
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(Time.zone.now - 5.hours).beginning_of_day - 1.days
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end
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def offset
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(params[:page].to_i.zero? ? 0 : params[:page].to_i - 1) * PAGE_SIZE
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end
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end |
