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31 lines
895 B
31 lines
895 B
6 years ago
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class Ecs::CreateMajorManagerService < ApplicationService
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Error = Class.new(StandardError)
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MAJOR_MANAGER_COUNT_LIMIT = 5 # 专业管理员数量限制
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attr_reader :major_school, :user_id
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def initialize(major_school, user_id)
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@major_school = major_school
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@user_id = user_id
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end
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def call
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raise Error, '示例专业不能添加管理员' if major_school.template_major?
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user = User.find_by(id: params[:user_id])
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raise Error, '该用户不存在' if user.blank?
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if major_school.ec_major_school_users.exists?(user_id: user.id)
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raise Error, '该用户已经是该专业的管理员了'
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end
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if major_school.ec_major_school_users.count >= MAJOR_MANAGER_COUNT_LIMIT
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raise Error, '该专业管理员数量已达上限'
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end
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major_school.ec_major_school_users.create!(user: user)
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user
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end
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end
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