当我写这个方法时,我知道它可以写得更好,但它是一个MVP。现在,我正在努力了解专家们认为的方法以及如何解决警察问题。不断学习!
以下是有问题的控制器方法:
def show
if params[:id] && numeric?(params[:id])
@job = Job.find_by(id: params[:id])
if @job
if @job.start_at
if @job.end_at && @job.end_at >= Date.today
@company = Company.find_by_id(@job.company_id)
render 'jobs/show', layout: 'nested/job/show'
else
route_expired
end
else
route_not_paid_for
end
else
route_not_found_error
end
else
route_not_found_error
end
end
反过来,这些会根据他们获得的错误类型调用一系列路线来指导用户去哪里:
private
def route_not_found_error
flash[:error] = t('flash_messages.jobs.id.not_found')
redirect_to new_job_url
end
def route_expired
flash[:error] = t('flash_messages.jobs.id.expired')
redirect_to new_job_url
end
def route_not_paid_for
flash[:error] = t('flash_messages.jobs.id.not_paid_for')
redirect_to job_payment_url(@job)
end
对于专家们,您会如何处理?我知道这必须更清洁。
答案 0 :(得分:2)
首先,我会将一些逻辑移到Job
模型
def started?
self.start_at.present?
end
def finished?
self.end_at.present?
end
def expired?
finished? && self.end_at < Date.today
end
接下来,在我看来,检查是否存在:id
以及是否为数字是不必要的,您可以在控制器中使用rescue_from
。把它们放在一起,你可以按如下方式重构节目
class JobsController < ApplicationController
rescue_from ActiveRecord::RecordNotFound, with: :route_not_found_error
def show
@job = Job.find params[:id]
route_not_paid_for unless @job.started?
route_expired if @job.expired?
@company = Compandy.find_by_id(@job.company_id)
render 'jobs/show', layout: 'nested/job/show'
end
private
...
end