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98 lines
2.5 KiB
98 lines
2.5 KiB
class Users::ShixunService
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attr_reader :user, :params
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def initialize(user, params)
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@user = user
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@params = params
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end
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def call
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shixuns = category_scope_shixuns
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shixuns = user_policy_filter(shixuns)
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custom_order(shixuns, params[:sort_by], params[:sort_direction])
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end
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private
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def category_scope_shixuns
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case params[:category]
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when 'study' then
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user.study_shixuns
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when 'manage' then
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user.shixuns
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else
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ids = user.study_shixuns.pluck(:id) + user.shixuns.pluck(:id)
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Shixun.where(id: ids)
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end
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end
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def status_filter(relations)
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case params[:category]
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when 'study' then
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study_shixun_status_filter(relations)
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when 'manage' then
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manage_shixun_status_filter(relations)
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else
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relations
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end
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end
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def user_policy_filter(relations)
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# 只有自己或者管理员才有过滤筛选及查看全部状态下实训功能
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if self_or_admin?
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relations = relations.where.not(status: -1)
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status_filter(relations)
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else
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relations.where(status: [2, 3], hidden: false)
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end
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end
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def self_or_admin?
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User.current.id == user.id || User.current.admin?
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end
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def study_shixun_status_filter(relations)
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status = case params[:status]
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when 'passed' then 1
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when 'processing' then 0
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end
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relations.where(myshixuns: { status: status }) if status
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relations
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end
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def manage_shixun_status_filter(relations)
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status = case params[:status]
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when 'editing' then 0
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when 'applying' then 1
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when 'published' then 2
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when 'closed' then 3
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end
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relations = relations.where(status: status) if status
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relations
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end
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def custom_order(relations, sort_by, sort_direction)
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sort_by = sort_by&.downcase
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sort_direction = sort_direction&.downcase
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if sort_direction.blank? || !%w(desc asc).include?(sort_direction)
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sort_direction = 'desc'
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end
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if sort_by == 'language'
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return relations.left_joins(:tag_repertoires).order("tag_repertoires.name #{sort_direction}")
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end
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case params[:category]
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when 'study' then
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relations.order("myshixuns.updated_at #{sort_direction}")
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when 'manage' then
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relations.order("shixuns.updated_at #{sort_direction}")
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else
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relations.order("shixuns.created_at #{sort_direction}")
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end
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end
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end
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