名片转家

启动服务

bundle install
bundle exec thin start

功能说明

models

1. 每个model通用属性、实例方法、类方法放在/lib/utils/data_mapper/model.rb
2. action_logger在/lib/utils/action_logger.rb定义
3. 利用DataMapp的hooks调用action_logger

ps: action_logger与model间的关联(需关联到user)/实例方法(需要logger的model都要有human_name方法)等，修改model时记得查看是否被action_logger绊到了。

TODO

[x]. WeixinRobot添加处理消息类型#video/music... []. WeixinRobot Xml自定义类处理，替换字符串处理. [x]. ReplyRobot各消息类型处理.

坑汇总

技术相关

1. jquery#bootstrapValidator

input[type=submit]的name不可以设置为name => [name conflict](!http://bootstrapvalidator.com/getting-started/#name-conflict)

2. DataMapper#自动更新字段

[dm-timestamps](!http://datamapper.org/docs/dm_more/timestamps.html)

````
  property :created_at, DateTime
  property :created_on, Date
  property :updated_at, DateTime
  property :updated_on, Date
````

3. DataMapper#保存失败

Gemfile

````
  gem "dm-validations", "~>1.2.0"
````

model

````
  require "dm-validations"
````

controller

````
  Order.raise_on_save_failure = false
  order = current_user.orders.new(order_params)
  if not order.save
    puts "Failed to save order: %s" % order.errors.inspect
  end
````

4. DataObjects::IntegrityError# column track_id not unique

只针对colun#track_id, 不知道它在DataMapper中扮演什么角色，但这个字段属性unique?是false,但创建时报上述错误。

原来的model设置逻辑:

````
class Track
  has n, :records
end
class Record
  belongs_to :track, :required => false
end

track = Track.first(id: id)
# error line
track.records.create(record_params)

# debug lines
record = track.records.first
record.class.properties.map do |property|
  [property.name, property.unique?].join("=>")
end
.join("<br>")
````

现在直接把Model名称换了(track_id自然也变了)，同样的关联逻辑，运行正常！

5. inject的使用

算不上坑,算是用法要点易忽视, 坑人的用法:

````
  hash.inject({}) do |sum, _hash|
    next if _hash[0] == "updated_at" # 坑
    sum.merge!({ _hash.first => _hash.last })
  end
````

inject每次循环的返回值赋值给sum，使用next相当于把sum置为nil，next后的循环中就会报错nil没有方法merge!

正确的用法:

````
  hash.inject({}) do |sum, _hash|
    if _hash[0] == "updated_at" # 不知道有没有更优雅的方法
      return sum
    else
      sum.merge!({ _hash.first => _hash.last })
    end
  end
  # 优雅点的用法？
  hash.grep(...).inject({}) do |sum, _hash|
      sum.merge!({ _hash.first => _hash.last })
  end
  # 但如果平行对比的话, 好像就优雅不起来了
  # one, two hash结构一致
  one.inject({}) do |diff, array|
    key, _one = array
    _two = two.fetch(key)
    if _one == _two
      return diff
    else
      sum.merge!({ key => { "one" => _one, "two" => _two }})
    end
  end
````

更新日志

1. 2014/11/09

2. Sinatra::ReplyRobot

3. 2014/11/12

4. assets#files可以使用cdn#qiniu, ENV["ASSET_CDN"] = "true"

5. assets#sass files移入assets/sass

修改coffee/sass文件后记得编译、上传至qiniu

````
  bundle exec rake cs2js:compile
  bundle exec rake cdn:qiniu
````

3. git

````
  git rm --cached remove_file_from_cached
  git reset --hard HEAD
````

3. 2014/11/14