Class: Gitdb::Card

Inherits:
Object
  • Object
show all
Defined in:
lib/gitdb/Card.rb

Constant Summary collapse

@@lock =

线程锁

Mutex.new
@@lock_repo =

记录申请资源的repo, 用于判断是否需要锁

[]

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(repo) ⇒ Card

Returns a new instance of Card.



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# File 'lib/gitdb/Card.rb', line 10

def initialize repo
  @repo = repo
end

Class Method Details

.exist?(repo, id) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/gitdb/Card.rb', line 14

def self::exist? repo, id
  # 检查stage而不是tree
  nil != repo.index.get(id)
end

Instance Method Details

#access(id) ⇒ Object 



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# File 'lib/gitdb/Card.rb', line 73

def access id
  @id = id
  o = @repo.head.target.tree.find do |o|
    o if o[:name] == id
  end
  # 找到名片后加载名片数据, 并返回Card实例, 否则返回nil
  if o != nil
    @content = JSON.parse @repo.lookup(o[:oid]).content, { symbolize_names: true }
    @uid = @content[:owner]
    self
  else
    nil
  end
end

#add_to_stage(id, content) ⇒ Object 



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# File 'lib/gitdb/Card.rb', line 115

def add_to_stage id, content
  oid = @repo.write content, :blob
  @repo.index.add :path => id, :oid => oid, :mode => 0100644
end

#create(uid) ⇒ Object 



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# File 'lib/gitdb/Card.rb', line 43

def create uid

  block = Proc.new {
    # 生成唯一的名片id
    while exist?(@id = Gitil::generate_code(4)) 
    end
    # 记录名片创建者id
    @uid = uid
    # 用默认格式初始化名片可读内容
    @content = format_card @id, @uid
    # 添加到暂存区
    add_to_stage @id, JSON.pretty_generate(@content)
  }

  # 如果repo中存在资源申请
  if @@lock_repo.include? @repo.workdir
    # 同步信号量
    @@lock.synchronize &block
  else
  # 否则将新的repo加入记录
    @@lock_repo << @repo.workdir
    block.call
  end
  # 使用结束后清理记录
  @@lock_repo.delete @repo.workdir
  
  # 返回Card实例
  self
end

#delete ⇒ Object 



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# File 'lib/gitdb/Card.rb', line 111

def delete
  @repo.index.remove @id
end

#exist?(id) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/gitdb/Card.rb', line 19

def exist? id
  Card::exist? @repo, id
end

#format_card(id, uid) ⇒ Object

设置名片默认格式 Notice: 每个hash的key为Symbol类型



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# File 'lib/gitdb/Card.rb', line 25

def format_card id, uid
  {
    meta: {
      id: id,
      owner: uid
    },
    firstname: '',
    lastname: '',
    mobile: [],
    phone: [],
    email: [],
    address: [],
    im: [],
    birthday: '',
    note: ''
  }
end

#getdata ⇒ Object 



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# File 'lib/gitdb/Card.rb', line 88

def getdata
  data = @content.clone
  data.delete :meta
  data
end

#getmeta ⇒ Object 



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# File 'lib/gitdb/Card.rb', line 103

def getmeta
  @content.clone[:meta]
end

#setdata(hash) ⇒ Object 



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# File 'lib/gitdb/Card.rb', line 94

def setdata hash
  h = Gitil::data_keys_of_card.map { |key| key.to_sym } & hash.keys
  h.each do |sym_key|
    @content[sym_key] = hash[sym_key]
  end
  # 每次对数据的修改会触发一次"写入暂存区"
  add_to_stage @id, JSON.pretty_generate(@content)
end

#setmeta(hash) ⇒ Object 



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# File 'lib/gitdb/Card.rb', line 107

def setmeta hash
  @content[:meta] = hash
end