forgeplus/app/queries/admins/course_query.rb

44 lines
1.2 KiB
Ruby

class Admins::CourseQuery < ApplicationQuery
include CustomSortable
attr_reader :params
sort_columns :created_at, default_by: :created_at, default_direction: :desc, default_table: 'courses'
def initialize(params)
@params = params
end
def call
courses = Course.all
courses = courses.where(id: params[:id]) if params[:id].present?
# 状态过滤
status =
case params[:status].to_s.strip
when 'processing' then 0
when 'ended' then 1
end
courses = courses.where(is_end: status) if status
# 单位
if params[:school_id].present?
courses = courses.where(school_id: params[:school_id])
end
# 首页展示
if params[:homepage_show].present? && params[:homepage_show].to_s == 'true'
courses = courses.where(homepage_show: true)
end
# 关键字
keyword = params[:keyword].to_s.strip
if keyword
sql = 'CONCAT(lastname, firstname) LIKE :keyword OR courses.name LIKE :keyword OR course_lists.name LIKE :keyword'
courses = courses.joins(:teacher, :course_list).where(sql, keyword: "%#{keyword}%")
end
custom_sort(courses, params[:sort_by], params[:sort_direction])
end
end