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Versions: 16
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Stored size: 1.05 KB
Contents
module Gaku
class StudentSelection
attr_accessor :user
def initialize(user)
@user = user
end
def all
$redis.lrange(user_selection, 0, -1)
end
def remove_all
$redis.del(user_selection)
self.students
end
def add(student)
$redis.rpush(user_selection, student.id)
self.students
end
def remove(student)
$redis.lrem(user_selection, 0, student.id)
self.students
end
def collection(students)
new_students = not_added_students(students)
$redis.rpush(user_selection, new_students) unless new_students.blank?
self.students
end
def remove_collection(students)
students.each do |student|
$redis.lrem(user_selection, 0, student.id)
end
self.students
end
def students
Student.where(id: all)
end
private
def user_selection
%Q(user:#{user.id}:student_selection)
end
def not_added_students(students)
students.reject { |student| all.include?(student.id) }.map(&:id)
end
end
end
Version data entries
16 entries across 16 versions & 2 rubygems