forgeplus/app/queries/admins/subject_query.rb

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2020-03-09 00:40:16 +08:00
class Admins::SubjectQuery < ApplicationQuery
include CustomSortable
attr_reader :params
sort_columns :created_at, default_by: :created_at, default_direction: :desc, default_table: 'subjects'
def initialize(params)
@params = params
end
def call
subjects = Subject.all
subjects = subjects.where(id: params[:id]) if params[:id].present?
# 状态过滤
status =
case params[:status].to_s.strip
when "editing" then {status: 0}
when "applying" then {status: 2, public: [0, 1]}
when "pending" then {public: 1}
when "published" then {public: 2}
end
subjects = subjects.where(status) if status
# 创建者单位
if params[:school_id].present?
subjects = subjects.joins(user: :user_extension).where(user_extensions: { school_id: params[:school_id] })
end
# 首页展示、金课
%i[homepage_show excellent].each do |column|
if params[column].present? && params[column].to_s == 'true'
subjects = subjects.where(column => true)
end
end
# 关键字
keyword = params[:keyword].to_s.strip
if keyword
sql = 'CONCAT(lastname, firstname) LIKE :keyword OR subjects.name LIKE :keyword'
subjects = subjects.joins(:user).where(sql, keyword: "%#{keyword}%")
end
custom_sort(subjects, params[:sort_by], params[:sort_direction])
end
end