danjiang (但江)

有人用过 clockwork 吗，怎么在 production 环境下启动？

danjiang — Wed, 25 May 2016 21:40:44 +0800

clockwork https://github.com/tomykaira/clockwork

服务器环境运行下面的命令都不行，报错仍是 development

bin/clockwork clock.rb -e production

bin/clockwork clock.rb RAILS_ENV=production

本地的开发环境执行下面的命令，没有任何问题

bin/clockwork clock.rb

clock.rb 文件的代码

require 'clockwork'
require_relative './config/boot'
require_relative './config/environment'

module Clockwork
    every(1.day, 'solr.indexing', :at => '02:00') { SolrIndexingJob.perform_later }
end

访问 MongoDB，替代 Mongoid 的解决方案？

danjiang — Tue, 19 Apr 2016 09:29:38 +0800

访问 MongoDB，替代 Mongoid 的解决方案？能支持 Rails 5?

Resources 访问控制

danjiang — Thu, 25 Dec 2014 11:23:40 +0800

一个学校有很多个相册，一个用户只在一个学校，如何控制用户查看相册时候是它所属的学校的相册，下面这种做法在很多地方都会重复，有没有好一点解决办法

resources :school_albums do
    resources :school_album_images, :except => :show
end

def show
    @album = SchoolAlbum.find(params[:id])
    redirect_to root_path if @album.school_id != current_user.schools.first.id
    @images = @album.school_album_images.order("time DESC")
end

好一点的解决办法

app/models/concerns/school_visible.rb

module SchoolVisible
    extend ActiveSupport::Concern

    def visible_to(user)
        raise CanCan::AccessDenied if self.school_id != user.school.id
    end
end

app/models/school_ablum.rb

class SchoolAlbum < ActiveRecord::Base
    self.table_name = "school_album"
    belongs_to :school, :foreign_key => "school_id"
    has_many :school_album_images, :foreign_key => "album_id", :dependent => :destroy

    validates :title, :presence => true, :length => { :maximum => 14 }
    include SchoolVisible
end

def show
    @album = SchoolAlbum.find(params[:id])
    @album.visible_to(current_user)
    @images = @album.school_album_images.order("time DESC")
end