5.在MVC中使用泛型仓储模式和工作单元来进行增删…
2018-06-22 06:03:40来源：未知 阅读 ()
原文链接：http://www.c-sharpcorner.com/UploadFile/3d39b4/crud-operations-using-the-generic-repository-pattern-and-uni/
或者：http://www.codeproject.com/Articles/814768/CRUD-Operations-Using-the-Generic-Repository-Patte
系列目录：
- Relationship in Entity Framework Using Code First Approach With Fluent API【【使用EF Code-First方式和Fluent API来探讨EF中的关系】】
- Code First Migrations with Entity Framework【使用EF 做数据库迁移】
- CRUD Operations Using Entity Framework 5.0 Code First Approach in MVC【在MVC中使用EF 5.0做增删查改】
- CRUD Operations Using the Repository Pattern in MVC【在MVC中使用仓储模式，来做增删查改】
- CRUD Operations Using the Generic Repository Pattern and Unit of Work in MVC【在MVC中使用泛型仓储模式和工作单元来做增删查改】
- CRUD Operations Using the Generic Repository Pattern and Dependency Injection in MVC【在MVC中使用泛型仓储模式和依赖注入，来做增删查改】
源代码下载：https://github.com/caofangsheng93/GenericRepositoryCURD
这篇文章，我将会介绍在ASP.NET MVC应用程序中使用泛型仓储模式和工作单元。我将开发一个程序，对Book实体进行增删查改，为了保证这篇文章简单，便于大家理解泛型仓储模式和工作单元，在这篇文章中，我将只会使用一个Book实体。
在上篇文章中“4.CRUD Operations Using the Repository Pattern in MVC【在MVC中使用仓储模式进行增删查改】“讲到了仓储模式，里面我们为Book实体，创建了一个仓储类，但是这个仓储仅仅是只能为一个实体服务的。试想一下，如果是真正的企业级开发，我们会有很多实体，难道，我们要为每一个实体都创建一个仓储类么？？？显然是不现实的。对于这个问题，我们需要创建一个可以为所有实体公用的仓储，所以这里引入泛型仓储。这样就避免了重复编码。
下面的图中，讲到了两个开发者，讨论一个问题："是否需要创建一个新的零件或者是利用已经存在的零件？" ------如果你选择第一种，那么就是这篇文章讲到的，"4.CRUD Operations Using the Repository Pattern in MVC【在MVC中使用仓储模式进行增删查改】"
但我在这里选择第二种，也就是这篇文章，我将要讲到的。--使用泛型仓储模式来重用代码，减少冗余代码。
既然说到仓储，那么什么是仓储模式呢？
仓储模式旨在数据访问层和业务逻辑层之间创建一个抽象层。仓储模式是数据访问模式，旨在达到数据访问的更松散的耦合性。我们在单独的类，或者类库中创建数据访问的逻辑，这就是仓储。仓储的职责就是和业务逻辑层进行通信。
在这篇文章中，我将会为所有的实体设计一个公共的泛型仓储，另外还有一个工作单元类。这个工作单元类，为每个实体创建仓储的实例，然后仓储实例用来做增删查改操作。我在控制器中创建工作单元类的实例，然后依据具体的实体，创建仓储的实例，然后就可以使用仓储中的方法进行每个操作了。
下面的图表显示了仓储和EF数据上下文之间的关系。在图中，MVC控制器直接通过工作单元和仓储进行交互，而不是直接和EF进行交互。
讲到这里，大家可能就会有疑问了,为什么要使用工作单元呢？？？
工作单元就像它的名字一样，做某件事情。在这篇文章中，工作单元主要做的是：我们创建工作单元的实例，然后工作单元为我们初始化EF数据上下文，然后每个仓储的实例都使用同一个数据上下文实例进行数据库操作。因此工作单元就是，用来确保所有的仓储实例都使用同一个数据上下文实例。
好了理论到此为止，讲的差不多了。现在我们开始进入正题：
先看看项目的结构：
这三个项目就不用做过多介绍了吧，前面的文章已经说了很多次了...
EF.Entity类库中，添加BaseEntity实体：
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
namespace EF.Entity
{
public abstract class BaseEntity
{
/// <summary>
/// ID编号
/// </summary>
public int ID { get; set; }
/// <summary>
/// 添加时间
/// </summary>
public DateTime AddedDate { get; set; }
/// <summary>
/// 修改时间
/// </summary>
public DateTime ModifiedDate { get; set; }
/// <summary>
/// IP地址
/// </summary>
public string IP { get; set; }
}
}
Book实体：
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
namespace EF.Entity
{
public class Book:BaseEntity
{
/// <summary>
/// 书名
/// </summary>
public string Title { get; set; }
/// <summary>
/// 作者
/// </summary>
public string Author { get; set; }
/// <summary>
/// ISBN编号
/// </summary>
public string ISBN { get; set; }
/// <summary>
/// 出版时间
/// </summary>
public DateTime PublishedDate { get; set; }
}
}
Entity.Data类库中BookMap类：
using EF.Entity;
using System;
using System.Collections.Generic;
using System.ComponentModel.DataAnnotations.Schema;
using System.Data.Entity.ModelConfiguration;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
namespace EF.Data
{
public class BookMap:EntityTypeConfiguration<Book>
{
public BookMap()
{
//配置主键
this.HasKey(s => s.ID);
//配置字段
this.Property(s => s.ID).HasDatabaseGeneratedOption(DatabaseGeneratedOption.Identity);
this.Property(s => s.Author).HasColumnType("nvarchar").HasMaxLength(50).IsRequired();
this.Property(s => s.AddedDate).IsRequired();
this.Property(s => s.IP).IsOptional();
this.Property(s => s.ISBN).HasColumnType("nvarchar").HasMaxLength(50).IsRequired();
this.Property(s => s.ModifiedDate).IsOptional();
this.Property(s => s.PublishedDate).IsRequired();
this.Property(s => s.Title).HasColumnType("nvarchar").HasMaxLength(50).IsRequired();
//配置表名
this.ToTable("Books");
}
}
}
EF数据上下文类：
using System;
using System.Collections.Generic;
using System.Data.Entity;
using System.Data.Entity.ModelConfiguration;
using System.Linq;
using System.Reflection;
using System.Text;
using System.Threading.Tasks;
namespace EF.Data
{
public class EFDbContext:DbContext
{
public EFDbContext()
: base("name=DbConnectionString")
{ }
protected override void OnModelCreating(DbModelBuilder modelBuilder)
{
var typesToRegister = Assembly.GetExecutingAssembly().GetTypes()
.Where(type => !String.IsNullOrEmpty(type.Namespace))
.Where(type => type.BaseType != null && type.BaseType.IsGenericType
&& type.BaseType.GetGenericTypeDefinition() == typeof(EntityTypeConfiguration<>));
foreach (var type in typesToRegister)
{
dynamic configurationInstance = Activator.CreateInstance(type);
modelBuilder.Configurations.Add(configurationInstance);
}
//base.OnModelCreating(modelBuilder);
}
}
}
然后启用数据库迁移，自动生成数据库，这里的步骤就省略了，因为前面的文章已经说了。
接着，在EF.Data项目中创建泛型仓储类，里面提供了增删查改的方法，这个泛型的仓储类中，有一个带DbContext参数的构造函数，所以当我们实例化仓储的时候，传递一个数据上下文对象给仓储，所有的实体就可以使用同一个数据上下文对象了。我们使用了数据上下文的SaveChange方法，但是你同样可以使用工作单元类的Save方法，因为这两者使用的是同一个数据上下文对象，下面是泛型的仓储类代码：【为了使文章更容易理解，这里我不创建泛型的仓储接口】。
1 using EF.Entity;
2 using System;
3 using System.Collections.Generic;
4 using System.Data.Entity;
5 using System.Data.Entity.Validation;
6 using System.Linq;
7 using System.Text;
8 using System.Threading.Tasks;
9
10 namespace EF.Data
11 {
12 /// <summary>
13 /// 泛型仓储类
14 /// </summary>
15 /// <typeparam name="T"></typeparam>
16 public class Repository<T> where T:BaseEntity
17 {
18 /// <summary>
19 /// 数据上下文变量
20 /// </summary>
21 private readonly EFDbContext db;
22 string errorMessage = string.Empty;
23
24 #region 封装属性
25 /// <summary>
26 /// 实体访问字段
27 /// </summary>
28 private IDbSet<T> entities;
29
30 /// <summary>
31 /// 封装属性
32 /// </summary>
33 public IDbSet<T> Entities
34 {
35 get
36 {
37 if (entities == null)
38 {
39 return entities = db.Set<T>();
40 }
41 else
42 {
43 return entities;
44 }
45 }
46 }
47 #endregion
48
49 #region 构造函数
50 public Repository(EFDbContext context)
51 {
52 this.db = context;
53 }
54 #endregion
55
56 #region 泛型方法--根据Id查找实体
57 /// <summary>
58 /// 泛型方法--根据Id查找实体
59 /// </summary>
60 /// <param name="id"></param>
61 /// <returns></returns>
62 public T GetById(int id)
63 {
64 return this.entities.Find(id);
65 }
66 #endregion
67
68 #region Insert
69 public void Insert(T entity)
70 {
71 try
72 {
73 if (entity == null)
74 {
75 throw new ArgumentNullException("entity");
76 }
77 else
78 {
79 this.Entities.Add(entity);//把实体的状态设置为Added
80 this.db.SaveChanges();//保存到数据库
81 }
82 }
83 catch (DbEntityValidationException dbEx)//DbEntityValidationException
84 {
85 foreach (var validationErrors in dbEx.EntityValidationErrors)
86 {
87 foreach (var item in validationErrors.ValidationErrors)
88 {
89 errorMessage += string.Format("Property:{0} Error:{1}", item.PropertyName, item.ErrorMessage) + Environment.NewLine;
90 }
91 }
92 throw new Exception(errorMessage, dbEx);
93 }
94 }
95 #endregion
96
97 #region Update
98 public void Update(T entity)
99 {
100 try
101 {
102 if (entity == null)
103 {
104 throw new ArgumentNullException("entity");
105 }
106 else
107 {
108 this.db.SaveChanges();//保存到数据库
109 }
110 }
111 catch (DbEntityValidationException dbEx)
112 {
113 foreach (var validationErrors in dbEx.EntityValidationErrors)
114 {
115 foreach (var error in validationErrors.ValidationErrors)
116 {
117 errorMessage += string.Format("Property:{0} Error:{1}", error.PropertyName, error.ErrorMessage) + Environment.NewLine;
118 }
119 }
120 //抛出捕获的异常
121 throw new Exception(errorMessage, dbEx);
122 }
123 }
124 #endregion
125
126 #region Delete
127 public void Delete(T entity)
128 {
129 try
130 {
131 if (entity == null)
132 {
133 throw new ArgumentException("entity");
134 }
135 else
136 {
137 this.db.Entry(entity).State = EntityState.Deleted;
138 this.db.SaveChanges();
139 }
140 }
141 catch (DbEntityValidationException dbEx)
142 {
143 foreach (var validationErrors in dbEx.EntityValidationErrors)
144 {
145 foreach (var error in validationErrors.ValidationErrors)
146 {
147 errorMessage += string.Format("Property:{0} Error:{1}", error.PropertyName, error.ErrorMessage) + Environment.NewLine;
148 }
149 }
150
151 throw new Exception(errorMessage, dbEx);
152 }
153 }
154 #endregion
155
156 #region Table
157 public virtual IQueryable<T> Table
158 {
159 get
160 {
161 return this.Entities;
162 }
163 }
164 #endregion
165
166
167 }
168 }
下面创建工作单元类，UnitOfWork,这个工作单元类继承自IDisposable接口，所以它的实例将会在每个控制器中被 释放掉。工作单元类初始化了程序的上下文，工作单元类的核心就是Repository<T>() 类型的泛型方法，这个方法为继承自BaseEntity的每个实体返回了仓储实例。下面是工作单元类的代码：
using EF.Entity;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
namespace EF.Data
{
public class UnitOfWork : IDisposable
{
private readonly EFDbContext db;
private bool disposed;
private Dictionary<string, object> repositories;
public UnitOfWork(EFDbContext context)
{
this.db = context; //构造函数中初始化上下文对象
}
public UnitOfWork()
{
db = new EFDbContext(); //构造函数中初始化上下文对象
}
#region Dispose
public void Dispose()
{
Dispose(true);
GC.SuppressFinalize(this);
}
public virtual void Dispose(bool disposing)
{
if (!disposed)
{
if (disposing)
{
db.Dispose();
}
}
disposed = true;
}
#endregion
#region Save
public void Save()
{
db.SaveChanges();
}
#endregion
#region Repository<T>()
public Repository<T> Repository<T>() where T : BaseEntity
{
if (repositories == null)
{
repositories = new Dictionary<string, object>();
}
var type = typeof(T).Name;//获取当前成员名称
if (!repositories.ContainsKey(type))//如果repositories中不包含Name
{
var repositoryType = typeof(Repository<>);//获取Repository<>类型
var repositoryInstance = Activator.CreateInstance(repositoryType.MakeGenericType(typeof(T)), db);
repositories.Add(type, repositoryInstance);
}
return (Repository<T>)repositories[type];
}
#endregion
}
}
好了，底层的代码，写完了，现在开始写控制器的代码：我们创建一个Book控制器，进行增删查改。
using EF.Data;
using EF.Entity;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.Mvc;
namespace EF.Web.Controllers
{
public class BookController : Controller
{
//创建并实例化工作单元来
private UnitOfWork unitOfWork = new UnitOfWork();
private Repository<Book> bookRepository;
public BookController()
{
//控制器的构造函数中，通过工作单元类的实例，来调用Repository<T>方法，实例化Book仓储
bookRepository = unitOfWork.Repository<Book>();
}
#region Index
public ActionResult Index()
{
IEnumerable<Book> lstBooks = bookRepository.Table.ToList();
return View(lstBooks);
}
#endregion
#region CreateEditBook
public ActionResult CreateEditBook(int? id)
{
Book model = new Book();
if (id.HasValue) //如果ID有值
{
model = bookRepository.GetById(id.Value);
return View(model);
}
else
{
return View(model);
}
}
[HttpPost]
public ActionResult CreateEditBook(Book model)
{
if (model.ID == 0)//ID为0表示是添加
{
model.AddedDate = DateTime.Now;
model.ModifiedDate = DateTime.Now;
model.IP = Request.UserHostAddress;//获取客户端的主机地址
bookRepository.Insert(model);
}
else //ID不为0,表示是修改
{
Book editModel= bookRepository.GetById(model.ID);
editModel.Author = model.Author;
editModel.ISBN = model.ISBN;
editModel.Title = model.Title;
editModel.PublishedDate = model.PublishedDate;
editModel.ModifiedDate = model.ModifiedDate;
editModel.IP = Request.UserHostAddress;
bookRepository.Update(editModel);
}
if (model.ID > 0)
{
return RedirectToAction("Index");
}
return View(model);
}
#endregion
#region DeleteBook
public ActionResult DeleteBook(int id)
{
Book model = bookRepository.GetById(id);
return View(model);
}
[HttpPost, ActionName("DeleteBook")]
public ActionResult ConfirmDeleteBook(int id)
{
Book model = bookRepository.GetById(id);
bookRepository.Delete(model);
return RedirectToAction("Index");
}
#endregion
#region DetailBook
public ActionResult DetailBook(int id)
{
Book model = bookRepository.GetById(id);
return View(model);
}
#endregion
#region Dispose
protected override void Dispose(bool disposing)
{
unitOfWork.Dispose();
base.Dispose(disposing);
}
#endregion
}
}
Index 视图代码：
@model IEnumerable<EF.Entity.Book>
<div class="book-example panel panel-primary">
<div class="panel-heading panel-head">Books Listing</div>
<div class="panel-body">
<a id="createEditBookModal" href="@Url.Action("CreateEditBook")" class="btn btn-success">
<span class="glyphicon glyphicon-plus"></span>Book
</a>
<table class="table" style="margin: 4px">
<tr>
<th>
@Html.DisplayNameFor(model => model.Title)
</th>
<th>
@Html.DisplayNameFor(model => model.Author)
</th>
<th>
@Html.DisplayNameFor(model => model.ISBN)
</th>
<th>
Action
</th>
<th></th>
</tr>
@foreach (var item in Model)
{
<tr>
<td>
@Html.DisplayFor(modelItem => item.Title)
</td>
<td>
@Html.DisplayFor(modelItem => item.Author)
</td>
<td>
@Html.DisplayFor(modelItem => item.ISBN)
</td>
<td>
@Html.ActionLink("Edit", "CreateEditBook", new { id = item.ID }, new { @class = "btn btn-success" }) |
@Html.ActionLink("Details", "DetailBook", new { id = item.ID }, new { @class = "btn btn-primary" }) |
@Html.ActionLink("Delete", "DeleteBook", new { id = item.ID }, new { @class = "btn btn-danger" })
</td>
</tr>
}
</table>
</div>
</div>
CraeteEdit视图代码：
@model EF.Entity.Book
@{
ViewBag.Title = "Create Edit Book";
}
<div class="book-example panel panel-primary">
<div class="panel-heading panel-head">Add / Edit Book</div>
<div class="panel-body">
@using (Html.BeginForm())
{
<div class="form-horizontal">
<div class="form-group">
@Html.LabelFor(model => model.Title, new { @class = "col-lg-1 control-label" })
<div class="col-lg-9">
@Html.TextBoxFor(model => model.Title, new { @class = "form-control" })
</div>
</div>
<div class="form-group">
@Html.LabelFor(model => model.ISBN, new { @class = "col-lg-1 control-label" })
<div class="col-lg-9">
@Html.TextBoxFor(model => model.ISBN, new { @class = "form-control" })
</div>
</div>
<div class="form-group">
@Html.LabelFor(model => model.Author, new { @class = "col-lg-1 control-label" })
<div class="col-lg-9">
@Html.TextBoxFor(model => model.Author, new { @class = "form-control" })
</div>
</div>
<div class="form-group">
@Html.LabelFor(model => model.Published, new { @class = "col-lg-1 control-label" })
<div class="col-lg-9">
@Html.TextBoxFor(model => model.Published, new { @class = "form-control datepicker" })
</div>
</div>
<div class="form-group">
<div class="col-lg-8"></div>
<div class="col-lg-3">
@Html.ActionLink("Back to List", "Index", null, new { @class = "btn btn-default" })
<button class="btn btn-success" id="btnSubmit" type="submit">
Submit
</button>
</div>
</div>
</div>
}
</div>
</div>
@section scripts 这里的话，在布局页中要添加这个块： @RenderSection("scripts", required: false)
{
<script src="~/Scripts/bootstrap-datepicker.js" type="text/javascript"></script>
<script src="~/Scripts/book-create-edit.js" type="text/javascript"></script>
}
DeleteBook视图：
@model EF.Entity.Book
@{
ViewBag.Title = "Delete Book";
}
<div class="book-example panel panel-primary">
<div class="panel-heading panel-head">Delete Book</div>
<div class="panel-body">
<h3>Are you sure you want to delete this?</h3>
<h1>@ViewBag.ErrorMessage</h1>
<div class="form-horizontal">
<div class="form-group">
@Html.LabelFor(model => model.Title, new { @class = "col-lg-1 control-label" })
<div class="col-lg-9">
@Html.DisplayFor(model => model.Title, new { @class = "form-control" })
</div>
</div>
<div class="form-group">
@Html.LabelFor(model => model.Author, new { @class = "col-lg-1 control-label" })
<div class="col-lg-9">
@Html.DisplayFor(model => model.Author, new { @class = "form-control" })
</div>
</div>
<div class="form-group">
@Html.LabelFor(model => model.ISBN, new { @class = "col-lg-1 control-label" })
<div class="col-lg-9">
@Html.DisplayFor(model => model.ISBN, new { @class = "form-control" })
</div>
</div>
<div class="form-group">
@Html.LabelFor(model => model.Published, new { @class = "col-lg-1 control-label" })
<div class="col-lg-9">
@Html.DisplayFor(model => model.Published, new { @class = "form-control" })
</div>
</div>
<div class="form-group">
@Html.LabelFor(model => model.AddedDate, new { @class = "col-lg-1 control-label" })
<div class="col-lg-9">
@Html.DisplayFor(model => model.AddedDate, new { @class = "form-control" })
</div>
</div>
<div class="form-group">
@Html.LabelFor(model => model.ModifiedDate, new { @class = "col-lg-1 control-label" })
<div class="col-lg-9">
@Html.DisplayFor(model => model.ModifiedDate, new { @class = "form-control" })
</div>
</div>
<div class="form-group">
@Html.LabelFor(model => model.IP, new { @class = "col-lg-1 control-label" })
<div class="col-lg-9">
@Html.DisplayFor(model => model.IP, new { @class = "form-control" })
</div>
</div>
@using (Html.BeginForm())
{
<div class="form-group">
<div class="col-lg-1"></div>
<div class="col-lg-9">
<input type="submit" value="Delete" class="btn btn-danger" />
@Html.ActionLink("Back to List", "Index", null, new { @class = "btn btn-success" })
</div>
</div>
}
</div>
</div>
</div>
Detail视图：
@model EF.Entity.Book
@{
ViewBag.Title = "Detail Book";
}
<div class="book-example panel panel-primary">
<div class="panel-heading panel-head">Book Detail</div>
<div class="panel-body">
<div class="form-horizontal">
<div class="form-group">
@Html.LabelFor(model => model.Title, new { @class = "col-lg-1 control-label" })
<div class="col-lg-9">
@Html.DisplayFor(model => model.Title, new { @class = "form-control" })
</div>
</div>
<div class="form-group">
@Html.LabelFor(model => model.Author, new { @class = "col-lg-1 control-label" })
<div class="col-lg-9">
@Html.DisplayFor(model => model.Author, new { @class = "form-control" })
</div>
</div>
<div class="form-group">
@Html.LabelFor(model => model.ISBN, new { @class = "col-lg-1 control-label" })
<div class="col-lg-9">
@Html.DisplayFor(model => model.ISBN, new { @class = "form-control" })
</div>
</div>
<div class="form-group">
@Html.LabelFor(model => model.Published, new { @class = "col-lg-1 control-label" })
<div class="col-lg-9">
@Html.DisplayFor(model => model.Published, new { @class = "form-control" })
</div>
</div>
<div class="form-group">
@Html.LabelFor(model => model.AddedDate, new { @class = "col-lg-1 control-label" })
<div class="col-lg-9">
@Html.DisplayFor(model => model.AddedDate, new { @class = "form-control" })
</div>
</div>
<div class="form-group">
@Html.LabelFor(model => model.ModifiedDate, new { @class = "col-lg-1 control-label" })
<div class="col-lg-9">
@Html.DisplayFor(model => model.ModifiedDate, new { @class = "form-control" })
</div>
</div>
<div class="form-group">
@Html.LabelFor(model => model.IP, new { @class = "col-lg-1 control-label" })
<div class="col-lg-9">
@Html.DisplayFor(model => model.IP, new { @class = "form-control" })
</div>
</div>
@using (Html.BeginForm())
{
<div class="form-group">
<div class="col-lg-1"></div>
<div class="col-lg-9">
@Html.ActionLink("Edit", "CreateEditBook", new { id = Model.ID }, new { @class = "btn btn-primary" })
@Html.ActionLink("Back to List", "Index", null, new { @class = "btn btn-success" })
</div>
</div>
}
</div>
</div>
</div>
修改一下默认路由为Book控制器，Index方法，然后运行项目》》》
后记：
用到的两个js文件
book-create-edit.js
(function ($) { function Book() { var $this = this; function initializeAddEditBook() { $('.datepicker').datepicker({ "setDate": new Date(), "autoclose": true }); } $this.init = function () { initializeAddEditBook(); } } $(function () { var self = new Book(); self.init(); }); }(jQuery))
bootstrap-datepicker.js
/* ========================================================= * bootstrap-datepicker.js * Repo: https://github.com/eternicode/bootstrap-datepicker/ * Demo: http://eternicode.github.io/bootstrap-datepicker/ * Docs: http://bootstrap-datepicker.readthedocs.org/ * Forked from http://www.eyecon.ro/bootstrap-datepicker * ========================================================= * Started by Stefan Petre; improvements by Andrew Rowls + contributors * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. * ========================================================= */ (function($, undefined){ var $window = $(window); function UTCDate(){ return new Date(Date.UTC.apply(Date, arguments)); } function UTCToday(){ var today = new Date(); return UTCDate(today.getFullYear(), today.getMonth(), today.getDate()); } function alias(method){ return function(){ return this[method].apply(this, arguments); }; } var DateArray = (function(){ var extras = { get: function(i){ return this.slice(i)[0]; }, contains: function(d){ // Array.indexOf is not cross-browser; // $.inArray doesn't work with Dates var val = d && d.valueOf(); for (var i=0, l=this.length; i < l; i++) if (this[i].valueOf() === val) return i; return -1; }, remove: function(i){ this.splice(i,1); }, replace: function(new_array){ if (!new_array) return; if (!$.isArray(new_array)) new_array = [new_array]; this.clear(); this.push.apply(this, new_array); }, clear: function(){ this.splice(0); }, copy: function(){ var a = new DateArray(); a.replace(this); return a; } }; return function(){ var a = []; a.push.apply(a, arguments); $.extend(a, extras); return a; }; })(); // Picker object var Datepicker = function(element, options){ this.dates = new DateArray(); this.viewDate = UTCToday(); this.focusDate = null; this._process_options(options); this.element = $(element); this.isInline = false; this.isInput = this.element.is('input'); this.component = this.element.is('.date') ? this.element.find('.add-on, .input-group-addon, .btn') : false; this.hasInput = this.component && this.element.find('input').length; if (this.component && this.component.length === 0) this.component = false; this.picker = $(DPGlobal.template); this._buildEvents(); this._attachEvents(); if (this.isInline){ this.picker.addClass('datepicker-inline').appendTo(this.element); } else { this.picker.addClass('datepicker-dropdown dropdown-menu'); } if (this.o.rtl){ this.picker.addClass('datepicker-rtl'); } this.viewMode = this.o.startView; if (this.o.calendarWeeks) this.picker.find('tfoot th.today') .attr('colspan', function(i, val){ return parseInt(val) + 1; }); this._allow_update = false; this.setStartDate(this._o.startDate); this.setEndDate(this._o.endDate); this.setDaysOfWeekDisabled(this.o.daysOfWeekDisabled); this.fillDow(); this.fillMonths(); this._allow_update = true; this.update(); this.showMode(); if (this.isInline){ this.show(); } }; Datepicker.prototype = { constructor: Datepicker, _process_options: function(opts){ // Store raw options for reference this._o = $.extend({}, this._o, opts); // Processed options var o = this.o = $.extend({}, this._o); // Check if "de-DE" style date is available, if not language should // fallback to 2 letter code eg "de" var lang = o.language; if (!dates[lang]){ lang = lang.split('-')[0]; if (!dates[lang]) lang = defaults.language; } o.language = lang; switch (o.startView){ case 2: case 'decade': o.startView = 2; break; case 1: case 'year': o.startView = 1; break; default: o.startView = 0; } switch (o.minViewMode){ case 1: case 'months': o.minViewMode = 1; break; case 2: case 'years': o.minViewMode = 2; break; default: o.minViewMode = 0; } o.startView = Math.max(o.startView, o.minViewMode); // true, false, or Number > 0 if (o.multidate !== true){ o.multidate = Number(o.multidate) || false; if (o.multidate !== false) o.multidate = Math.max(0, o.multidate); else o.multidate = 1; } o.multidateSeparator = String(o.multidateSeparator); o.weekStart %= 7; o.weekEnd = ((o.weekStart + 6) % 7); var format = DPGlobal.parseFormat(o.format); if (o.startDate !== -Infinity){ if (!!o.startDate){ if (o.startDate instanceof Date) o.startDate = this._local_to_utc(this._zero_time(o.startDate)); else o.startDate = DPGlobal.parseDate(o.startDate, format, o.language); } else { o.startDate = -Infinity; } } if (o.endDate !== Infinity){ if (!!o.endDate){ if (o.endDate instanceof Date) o.endDate = this._local_to_utc(this._zero_time(o.endDate)); else o.endDate = DPGlobal.parseDate(o.endDate, format, o.language); } else { o.endDate = Infinity; } } o.daysOfWeekDisabled = o.daysOfWeekDisabled||[]; if (!$.isArray(o.daysOfWeekDisabled)) o.daysOfWeekDisabled = o.daysOfWeekDisabled.split(/[,\s]*/); o.daysOfWeekDisabled = $.map(o.daysOfWeekDisabled, function(d){ return parseInt(d, 10); }); var plc = String(o.orientation).toLowerCase().split(/\s+/g), _plc = o.orientation.toLowerCase(); plc = $.grep(plc, function(word){ return (/^auto|left|right|top|bottom$/).test(word); }); o.orientation = {x: 'auto', y: 'auto'}; if (!_plc || _plc === 'auto') ; // no action else if (plc.length === 1){ switch (plc[0]){ case 'top': case 'bottom': o.orientation.y = plc[0]; break; case 'left': case 'right': o.orientation.x = plc[0]; break; } } else { _plc = $.grep(plc, function(word){ return (/^left|right$/).test(word); }); o.orientation.x = _plc[0] || 'auto'; _plc = $.grep(plc, function(word){ return (/^top|bottom$/).test(word); }); o.orientation.y = _plc[0] || 'auto'; } }, _events: [], _secondaryEvents: [], _applyEvents: function(evs){ for (var i=0, el, ch, ev; i < evs.length; i++){ el = evs[i][0]; if (evs[i].length === 2){ ch = undefined; ev = evs[i][1]; } else if (evs[i].length === 3){ ch = evs[i][1]; ev = evs[i][2]; } el.on(ev, ch); } }, _unapplyEvents: function(evs){ for (var i=0, el, ev, ch; i < evs.length; i++){ el = evs[i][0]; if (evs[i].length === 2){ ch = undefined; ev = evs[i][1]; } else if (evs[i].length === 3){ ch = evs[i][1]; ev = evs[i][2]; } el.off(ev, ch); } }, _buildEvents: function(){ if (this.isInput){ // single input this._events = [ [this.element, { focus: $.proxy(this.show, this), keyup: $.proxy(function(e){ if ($.inArray(e.keyCode, [27,37,39,38,40,32,13,9]) === -1) this.update(); }, this), keydown: $.proxy(this.keydown, this) }] ]; } else if (this.component && this.hasInput){ // component: input + button this._events = [ // For components that are not readonly, allow keyboard nav [this.element.find('input'), { focus: $.proxy(this.show, this), keyup: $.proxy(function(e){ if ($.inArray(e.keyCode, [27,37,39,38,40,32,13,9]) === -1) this.update(); }, this), keydown: $.proxy(this.keydown, this) }], [this.component, { click: $.proxy(this.show, this) }] ]; } else if (this.element.is('div')){ // inline datepicker this.isInline = true; } else { this._events = [ [this.element, { click: $.proxy(this.show, this) }] ]; } this._events.push( // Component: listen for blur on element descendants [this.element, '*', { blur: $.proxy(function(e){ this._focused_from = e.target; }, this) }], // Input: listen for blur on element [this.element, { blur: $.proxy(function(e){ this._focused_from = e.target; }, this) }] ); this._secondaryEvents = [ [this.picker, { click: $.proxy(this.click, this) }], [$(window), { resize: $.proxy(this.place, this) }], [$(document), { 'mousedown touchstart': $.proxy(function(e){ // Clicked outside the datepicker, hide it if (!( this.element.is(e.target) || this.element.find(e.target).length || this.picker.is(e.target) || this.picker.find(e.target).length )){ this.hide(); } }, this) }] ]; }, _attachEvents: function(){ this._detachEvents(); this._applyEvents(this._events); }, _detachEvents: function(){ this._unapplyEvents(this._events); }, _attachSecondaryEvents: function(){ this._detachSecondaryEvents(); this._applyEvents(this._secondaryEvents); }, _detachSecondaryEvents: function(){ this._unapplyEvents(this._secondaryEvents); }, _trigger: function(event, altdate){ var date = altdate || this.dates.get(-1), local_date = this._utc_to_local(date); this.element.trigger({ type: event, date: local_date, dates: $.map(this.dates, this._utc_to_local), format: $.proxy(function(ix, format){ if (arguments.length === 0){ ix = this.dates.length - 1; format = this.o.format; } else if (typeof ix === 'string'){ format = ix; ix = this.dates.length - 1; } format = format || this.o.format; var date = this.dates.get(ix); return DPGlobal.formatDate(date, format, this.o.language); }, this) }); }, show: function(){ if (!this.isInline) this.picker.appendTo('body'); this.picker.show(); this.place(); this._attachSecondaryEvents(); this._trigger('show'); }, hide: function(){ if (this.isInline) return; if (!this.picker.is(':visible')) return; this.focusDate = null; this.picker.hide().detach(); this._detachSecondaryEvents(); this.viewMode = this.o.startView; this.showMode(); if ( this.o.forceParse && ( this.isInput && this.element.val() || this.hasInput && this.element.find('input').val() ) ) this.setValue(); this._trigger('hide'); }, remove: function(){ this.hide(); this._detachEvents(); this._detachSecondaryEvents(); this.picker.remove(); delete this.element.data().datepicker; if (!this.isInput){ delete this.element.data().date; } }, _utc_to_local: function(utc){ return utc && new Date(utc.getTime() + (utc.getTimezoneOffset()*60000)); }, _local_to_utc: function(local){ return local && new Date(local.getTime() - (local.getTimezoneOffset()*60000)); }, _zero_time: function(local){ return local && new Date(local.getFullYear(), local.getMonth(), local.getDate()); }, _zero_utc_time: function(utc){ return utc && new Date(Date.UTC(utc.getUTCFullYear(), utc.getUTCMonth(), utc.getUTCDate())); }, getDates: function(){ return $.map(this.dates, this._utc_to_local); }, getUTCDates: function(){ return $.map(this.dates, function(d){ return new Date(d); }); }, getDate: function(){ return this._utc_to_local(this.getUTCDate()); }, getUTCDate: function(){ return new Date(this.dates.get(-1)); }, setDates: function(){ var args = $.isArray(arguments[0]) ? arguments[0] : arguments; this.update.apply(this, args); this._trigger('changeDate'); this.setValue(); }, setUTCDates: function(){ var args = $.isArray(arguments[0]) ? arguments[0] : arguments; this.update.apply(this, $.map(args, this._utc_to_local)); this._trigger('changeDate'); this.setValue(); }, setDate: alias('setDates'), setUTCDate: alias('setUTCDates'), setValue: function(){ var formatted = this.getFormattedDate(); if (!this.isInput){ if (this.component){ this.element.find('input').val(formatted).change(); } } else { this.element.val(formatted).change(); } }, getFormattedDate: function(format){ if (format === undefined) format = this.o.format; var lang = this.o.language; return $.map(this.dates, function(d){ return DPGlobal.formatDate(d, format, lang); }).join(this.o.multidateSeparator); }, setStartDate: function(startDate){ this._process_options({startDate: startDate}); this.update(); this.updateNavArrows(); }, setEndDate: function(endDate){ this._process_options({endDate: endDate}); this.update(); this.updateNavArrows(); }, setDaysOfWeekDisabled: function(daysOfWeekDisabled){ this._process_options({daysOfWeekDisabled: daysOfWeekDisabled}); this.update(); this.updateNavArrows(); }, place: function(){ if (this.isInline) return; var calendarWidth = this.picker.outerWidth(), calendarHeight = this.picker.outerHeight(), visualPadding = 10, windowWidth = $window.width(), windowHeight = $window.height(), scrollTop = $window.scrollTop(); var zIndex = parseInt(this.element.parents().filter(function(){ return $(this).css('z-index') !== 'auto'; }).first().css('z-index')) + 10; var offset = this.component ? this.component.parent().offset() : this.element.offset(); var height = this.component ? this.component.outerHeight(true) : this.element.outerHeight(false); var width = this.component ? this.component.outerWidth(true) : this.element.outerWidth(false); var left = offset.left, top = offset.top; this.picker.removeClass( 'datepicker-orient-top datepicker-orient-bottom '+ 'datepicker-orient-right datepicker-orient-left' ); if (this.o.orientation.x !== 'auto'){ this.picker.addClass('datepicker-orient-' + this.o.orientation.x); if (this.o.orientation.x === 'right') left -= calendarWidth - width; } // auto x orientation is best-placement: if it crosses a window // edge, fudge it sideways else { // Default to left this.picker.addClass('datepicker-orient-left'); if (offset.left < 0) left -= offset.left - visualPadding; else if (offset.left + calendarWidth > windowWidth) left = windowWidth - calendarWidth - visualPadding; } // auto y orientation is best-situation: top or bottom, no fudging, // decision based on which shows more of the calendar var yorient = this.o.orientation.y, top_overflow, bottom_overflow; if (yorient === 'auto'){ top_overflow = -scrollTop + offset.top - calendarHeight; bottom_overflow = scrollTop + windowHeight - (offset.top + height + calendarHeight); if (Math.max(top_overflow, bottom_overflow) === bottom_overflow) yorient = 'top'; else yorient = 'bottom'; } this.picker.addClass('datepicker-orient-' + yorient); if (yorient === 'top') top += height; else top -= calendarHeight + parseInt(this.picker.css('padding-top')); this.picker.css({ top: top, left: left, zIndex: zIndex }); }, _allow_update: true, update: function(){ if (!this._allow_update) return; var oldDates = this.dates.copy(), dates = [], fromArgs = false; if (arguments.length){ $.each(arguments, $.proxy(function(i, date){ if (date instanceof Date) date = this._local_to_utc(date); dates.push(date); }, this)); fromArgs = true; } else { dates = this.isInput ? this.element.val() : this.element.data('date') || this.element.find('input').val(); if (dates && this.o.multidate) dates = dates.split(this.o.multidateSeparator); else dates = [dates]; delete this.element.data().date; } dates = $.map(dates, $.proxy(function(date){ return DPGlobal.parseDate(date, this.o.format, this.o.language); }, this)); dates = $.grep(dates, $.proxy(function(date){ return ( date < this.o.startDate || date > this.o.endDate || !date ); }, this), true); this.dates.replace(dates); if (this.dates.length) this.viewDate = new Date(this.dates.get(-1)); else if (this.viewDate < this.o.startDate) this.viewDate = new Date(this.o.startDate); else if (this.viewDate > this.o.endDate) this.viewDate = new Date(this.o.endDate); if (fromArgs){ // setting date by clicking this.setValue(); } else if (dates.length){ // setting date by typing if (String(oldDates) !== String(this.dates)) this._trigger('changeDate'); } if (!this.dates.length && oldDates.length) this._trigger('clearDate'); this.fill(); }, fillDow: function(){ var dowCnt = this.o.weekStart, html = '<tr>'; if (this.o.calendarWeeks){ var cell = '<th class="cw"> </th>'; html += cell; this.picker.find('.datepicker-days thead tr:first-child').prepend(cell); } while (dowCnt < this.o.weekStart + 7){ html += '<th class="dow">'+dates[this.o.language].daysMin[(dowCnt++)%7]+'</th>'; } html += '</tr>'; this.picker.find('.datepicker-days thead').append(html); }, fillMonths: function(){ var html = '', i = 0; while (i < 12){ html += '<span class="month">'+dates[this.o.language].monthsShort[i++]+'</span>'; } this.picker.find('.datepicker-months td').html(html); }, setRange: function(range){ if (!range || !range.length) delete this.range; else this.range = $.map(range, function(d){ return d.valueOf(); }); this.fill(); }, getClassNames: function(date){ var cls = [], year = this.viewDate.getUTCFullYear(), month = this.viewDate.getUTCMonth(), today = new Date(); if (date.getUTCFullYear() < year || (date.getUTCFullYear() === year && date.getUTCMonth() < month)){ cls.push('old'); } else if (date.getUTCFullYear() > year || (date.getUTCFullYear() === year && date.getUTCMonth() > month)){ cls.push('new'); } if (this.focusDate && date.valueOf() === this.focusDate.valueOf()) cls.push('focused'); // Compare internal UTC date with local today, not UTC today if (this.o.todayHighlight && date.getUTCFullYear() === today.getFullYear() && date.getUTCMonth() === today.getMonth() && date.getUTCDate() === today.getDate()){ cls.push('today'); } if (this.dates.contains(date) !== -1) cls.push('active'); if (date.valueOf() < this.o.startDate || date.valueOf() > this.o.endDate || $.inArray(date.getUTCDay(), this.o.daysOfWeekDisabled) !== -1){ cls.push('disabled'); } if (this.range){ if (date > this.range[0] && date < this.range[this.range.length-1]){ cls.push('range'); } if ($.inArray(date.valueOf(), this.range) !== -1){ cls.push('selected'); } } return cls; }, fill: function(){ var d = new Date(this.viewDate), year = d.getUTCFullYear(), month = d.getUTCMonth(), startYear = this.o.startDate !== -Infinity ? this.o.startDate.getUTCFullYear() : -Infinity, startMonth = this.o.startDate !== -Infinity ? this.o.startDate.getUTCMonth() : -Infinity, endYear = this.o.endDate !== Infinity ? this.o.endDate.getUTCFullYear() : Infinity, endMonth = this.o.endDate !== Infinity ? this.o.endDate.getUTCMonth() : Infinity, todaytxt = dates[this.o.language].today || dates['en'].today || '', cleartxt = dates[this.o.language].clear || dates['en'].clear || '', tooltip; this.picker.find('.datepicker-days thead th.datepicker-switch') .text(dates[this.o.language].months[month]+' '+year); this.picker.find('tfoot th.today') .text(todaytxt) .toggle(this.o.todayBtn !== false); this.picker.find('tfoot th.clear') .text(cleartxt) .toggle(this.o.clearBtn !== false); this.updateNavArrows(); this.fillMonths(); var prevMonth = UTCDate(year, month-1, 28), day = DPGlobal.getDaysInMonth(prevMonth.getUTCFullYear(), prevMonth.getUTCMonth()); prevMonth.setUTCDate(day); prevMonth.setUTCDate(day - (prevMonth.getUTCDay() - this.o.weekStart + 7)%7); var nextMonth = new Date(prevMonth); nextMonth.setUTCDate(nextMonth.getUTCDate() + 42); nextMonth = nextMonth.valueOf(); var html = []; var clsName; while (prevMonth.valueOf() < nextMonth){ if (prevMonth.getUTCDay() === this.o.weekStart){ html.push('<tr>'); if (this.o.calendarWeeks){ // ISO 8601: First week contains first thursday. // ISO also states week starts on Monday, but we can be more abstract here. var // Start of current week: based on weekstart/current date ws = new Date(+prevMonth + (this.o.weekStart - prevMonth.getUTCDay() - 7) % 7 * 864e5), // Thursday of this week th = new Date(Number(ws) + (7 + 4 - ws.getUTCDay()) % 7 * 864e5), // First Thursday of year, year from thursday yth = new Date(Number(yth = UTCDate(th.getUTCFullYear(), 0, 1)) + (7 + 4 - yth.getUTCDay())%7*864e5), // Calendar week: ms between thursdays, div ms per day, div 7 days calWeek = (th - yth) / 864e5 / 7 + 1; html.push('<td class="cw">'+ calWeek +'</td>'); } } clsName = this.getClassNames(prevMonth); clsName.push('day'); if (this.o.beforeShowDay !== $.noop){ var before = this.o.beforeShowDay(this._utc_to_local(prevMonth)); if (before === undefined) before = {}; else if (typeof(before) === 'boolean') before = {enabled: before}; else if (typeof(before) === 'string') before = {classes: before}; if (before.enabled === false) clsName.push('disabled'); if (before.classes) clsName = clsName.concat(before.classes.split(/\s+/)); if (before.tooltip) tooltip = before.tooltip; } clsName = $.unique(clsName); html.push('<td class="'+clsName.join(' ')+'"' + (tooltip ? ' title="'+tooltip+'"' : '') + '>'+prevMonth.getUTCDate() + '</td>'); if (prevMonth.getUTCDay() === this.o.weekEnd){ html.push('</tr>'); } prevMonth.setUTCDate(prevMonth.getUTCDate()+1); } this.picker.find('.datepicker-days tbody').empty().append(html.join('')); var months = this.picker.find('.datepicker-months') .find('th:eq(1)') .text(year) .end() .find('span').removeClass('active'); $.each(this.dates, function(i, d){ if (d.getUTCFullYear() === year) months.eq(d.getUTCMonth()).addClass('active'); }); if (year < startYear || year > endYear){ months.addClass('disabled'); } if (year === startYear){ months.slice(0, startMonth).addClass('disabled'); } if (year === endYear){ months.slice(endMonth+1).addClass('disabled'); } html = ''; year = parseInt(year/10, 10) * 10; var yearCont = this.picker.find('.datepicker-years') .find('th:eq(1)') .text(year + '-' + (year + 9)) .end() .find('td'); year -= 1; var years = $.map(this.dates, function(d){ return d.getUTCFullYear(); }), classes; for (var i = -1; i < 11; i++){ classes = ['year']; if (i === -1) classes.push('old'); else if (i === 10) classes.push('new'); if ($.inArray(year, years) !== -1) classes.push('active'); if (year < startYear || year > endYear) classes.push('disabled'); html += '<span class="' + classes.join(' ') + '">'+year+'</span>'; year += 1; } yearCont.html(html); }, updateNavArrows: function(){ if (!this._allow_update) return; var d = new Date(this.viewDate), year = d.getUTCFullYear(), month = d.getUTCMonth(); switch (this.viewMode){ case 0: if (this.o.startDate !== -Infinity && year <= this.o.startDate.getUTCFullYear() && month <= this.o.startDate.getUTCMonth()){ this.picker.find('.prev').css({visibility: 'hidden'}); } else { this.picker.find('.prev').css({visibility: 'visible'}); } if (this.o.endDate !== Infinity && year >= this.o.endDate.getUTCFullYear() && month >= this.o.endDate.getUTCMonth()){ this.picker.find('.next').css({visibility: 'hidden'}); } else { this.picker.find('.next').css({visibility: 'visible'}); } break; case 1: case 2: if (this.o.startDate !== -Infinity && year <= this.o.startDate.getUTCFullYear()){ this.picker.find('.prev').css({visibility: 'hidden'}); } else { this.picker.find('.prev').css({visibility: 'visible'}); } if (this.o.endDate !== Infinity && year >= this.o.endDate.getUTCFullYear()){ this.picker.find('.next').css({visibility: 'hidden'}); } else { this.picker.find('.next').css({visibility: 'visible'}); } break; } }, click: function(e){ e.preventDefault(); var target = $(e.target).closest('span, td, th'), year, month, day; if (target.length === 1){ switch (target[0].nodeName.toLowerCase()){ case 'th': switch (target[0].className){ case 'datepicker-switch': this.showMode(1); break; case 'prev': case 'next': var dir = DPGlobal.modes[this.viewMode].navStep * (target[0].className === 'prev' ? -1 : 1); switch (this.viewMode){ case 0: this.viewDate = this.moveMonth(this.viewDate, dir); this._trigger('changeMonth', this.viewDate); break; case 1: case 2: this.viewDate = this.moveYear(this.viewDate, dir); if (this.viewMode === 1) this._trigger('changeYear', this.viewDate); break; } this.fill(); break; case 'today': var date = new Date(); date = UTCDate(date.getFullYear(), date.getMonth(), date.getDate(), 0, 0, 0); this.showMode(-2); var which = this.o.todayBtn === 'linked' ? null : 'view'; this._setDate(date, which); break; case 'clear': var element; if (this.isInput) element = this.element; else if (this.component) element = this.element.find('input'); if (element) element.val("").change(); this.update(); this._trigger('changeDate'); if (this.o.autoclose) this.hide(); break; } break; case 'span': if (!target.is('.disabled')){ this.viewDate.setUTCDate(1); if (target.is('.month')){ day = 1; month = target.parent().find('span').index(target); year = this.viewDate.getUTCFullYear(); this.viewDate.setUTCMonth(month); this._trigger('changeMonth', this.viewDate); if (this.o.minViewMode === 1){ this._setDate(UTCDate(year, month, day)); } } else { day = 1; month = 0; year = parseInt(target.text(), 10)||0; this.viewDate.setUTCFullYear(year); this._trigger('changeYear', this.viewDate); if (this.o.minViewMode === 2){ this._setDate(UTCDate(year, month, day)); } } this.showMode(-1); this.fill(); } break; case 'td': if (target.is('.day') && !target.is('.disabled')){ day = parseInt(target.text(), 10)||1; year = this.viewDate.getUTCFullYear(); month = this.viewDate.getUTCMonth(); if (target.is('.old')){ if (month === 0){ month = 11; year -= 1; } else { month -= 1; } } else if (target.is('.new')){ if (month === 11){ month = 0; year += 1; } else { month += 1; } } this._setDate(UTCDate(year, month, day)); } break; } } if (this.picker.is(':visible') && this._focused_from){ $(this._focused_from).focus(); } delete this._focused_from; }, _toggle_multidate: function(date){ var ix = this.dates.contains(date); if (!date){ this.dates.clear(); } else if (ix !== -1){ this.dates.remove(ix); } else { this.dates.push(date); } if (typeof this.o.multidate === 'number') while (this.dates.length > this.o.multidate) this.dates.remove(0); }, _setDate: function(date, which){ if (!which || which === 'date') this._toggle_multidate(date && new Date(date)); if (!which || which === 'view') this.viewDate = date && new Date(date); this.fill(); this.setValue(); this._trigger('changeDate'); var element; if (this.isInput){ element = this.element; } else if (this.component){ element = this.element.find('input'); } if (element){ element.change(); } if (this.o.autoclose && (!which || which === 'date')){ this.hide(); } }, moveMonth: function(date, dir){ if (!date) return undefined; if (!dir) return date; var new_date = new Date(date.valueOf()), day = new_date.getUTCDate(), month = new_date.getUTCMonth(), mag = Math.abs(dir), new_month, test; dir = dir > 0 ? 1 : -1; if (mag === 1){ test = dir === -1 // If going back one month, make sure month is not current month // (eg, Mar 31 -> Feb 31 == Feb 28, not Mar 02) ? function(){ return new_date.getUTCMonth() === month; } // If going forward one month, make sure month is as expected // (eg, Jan 31 -> Feb 31 == Feb 28, not Mar 02) : function(){ return new_date.getUTCMonth() !== new_month; }; new_month = month + dir; new_date.setUTCMonth(new_month); // Dec -> Jan (12) or Jan -> Dec (-1) -- limit expected date to 0-11 if (new_month < 0 || new_month > 11) new_month = (new_month + 12) % 12; } else { // For magnitudes >1, move one month at a time... for (var i=0; i < mag; i++) // ...which might decrease the day (eg, Jan 31 to Feb 28, etc)... new_date = this.moveMonth(new_date, dir); // ...then reset the day, keeping it in the new month new_month = new_date.getUTCMonth(); new_date.setUTCDate(day); test = function(){ return new_month !== new_date.getUTCMonth(); }; } // Common date-resetting loop -- if date is beyond end of month, make it // end of month while (test()){ new_date.setUTCDate(--day); new_date.setUTCMonth(new_month); } return new_date; }, moveYear: function(date, dir){ return this.moveMonth(date, dir*12); }, dateWithinRange: function(date){ return date >= this.o.startDate && date <= this.o.endDate; }, keydown: function(e){ if (this.picker.is(':not(:visible)')){ if (e.keyCode === 27) // allow escape to hide and re-show picker this.show(); return; } var dateChanged = false, dir, newDate, newViewDate, focusDate = this.focusDate || this.viewDate; switch (e.keyCode){ case 27: // escape if (this.focusDate){ this.focusDate = null; this.viewDate = this.dates.get(-1) || this.viewDate; this.fill(); } else this.hide(); e.preventDefault(); break; case 37: // left case 39: // right if (!this.o.keyboardNavigation) break; dir = e.keyCode === 37 ? -1 : 1; if (e.ctrlKey){ newDate = this.moveYear(this.dates.get(-1) || UTCToday(), dir); newViewDate = this.moveYear(focusDate, dir); this._trigger('changeYear', this.viewDate); } else if (e.shiftKey){ newDate = this.moveMonth(this.dates.get(-1) || UTCToday(), dir); newViewDate = this.moveMonth(focusDate, dir); this._trigger('changeMonth', this.viewDate); } else { newDate = new Date(this.dates.get(-1) || UTCToday()); newDate.setUTCDate(newDate.getUTCDate() + dir); newViewDate = new Date(focusDate); newViewDate.setUTCDate(focusDate.getUTCDate() + dir); } if (this.dateWithinRange(newDate)){ this.focusDate = this.viewDate = newViewDate; this.setValue(); this.fill(); e.preventDefault(); } break; case 38: // up case 40: // down if (!this.o.keyboardNavigation) break; dir = e.keyCode === 38 ? -1 : 1; if (e.ctrlKey){ newDate = this.moveYear(this.dates.get(-1) || UTCToday(), dir); newViewDate = this.moveYear(focusDate, dir); this._trigger('changeYear', this.viewDate); } else if (e.shiftKey){ newDate = this.moveMonth(this.dates.get(-1) || UTCToday(), dir); newViewDate = this.moveMonth(focusDate, dir); this._trigger('changeMonth', this.viewDate); } else { newDate = new Date(this.dates.get(-1) || UTCToday()); newDate.setUTCDate(newDate.getUTCDate() + dir * 7); newViewDate = new Date(focusDate); newViewDate.setUTCDate(focusDate.getUTCDate() + dir * 7); } if (this.dateWithinRange(newDate)){ this.focusDate = this.viewDate = newViewDate; this.setValue(); this.fill(); e.preventDefault(); } break; case 32: // spacebar // Spacebar is used in manually typing dates in some formats. // As such, its behavior should not be hijacked. break; case 13: // enter focusDate = this.focusDate || this.dates.get(-1) || this.viewDate; this._toggle_multidate(focusDate); dateChanged = true; this.focusDate = null; this.viewDate = this.dates.get(-1) || this.viewDate; this.setValue(); this.fill(); if (this.picker.is(':visible')){ e.preventDefault(); if (this.o.autoclose) this.hide(); } break; case 9: // tab this.focusDate = null; this.viewDate = this.dates.get(-1) || this.viewDate; this.fill(); this.hide(); break; } if (dateChanged){ if (this.dates.length) this._trigger('changeDate'); else this._trigger('clearDate'); var element; if (this.isInput){ element = this.element; } else if (this.component){ element = this.element.find('input'); } if (element){ element.change(); } } }, showMode: function(dir){ if (dir){ this.viewMode = Math.max(this.o.minViewMode, Math.min(2, this.viewMode + dir)); } this.picker .find('>div') .hide() .filter('.datepicker-'+DPGlobal.modes[this.viewMode].clsName) .css('display', 'block'); this.updateNavArrows(); } }; var DateRangePicker = function(element, options){ this.element = $(element); this.inputs = $.map(options.inputs, function(i){ return i.jquery ? i[0] : i; }); delete options.inputs; $(this.inputs) .datepicker(options) .bind('changeDate', $.proxy(this.dateUpdated, this)); this.pickers = $.map(this.inputs, function(i){ return $(i).data('datepicker'); }); this.updateDates(); }; DateRangePicker.prototype = { updateDates: function(){ this.dates = $.map(this.pickers, function(i){ return i.getUTCDate(); }); this.updateRanges(); }, updateRanges: function(){ var range = $.map(this.dates, function(d){ return d.valueOf(); }); $.each(this.pickers, function(i, p){ p.setRange(range); }); }, dateUpdated: function(e){ // `this.updating` is a workaround for preventing infinite recursion // between `changeDate` triggering and `setUTCDate` calling. Until // there is a better mechanism. if (this.updating) return; this.updating = true; var dp = $(e.target).data('datepicker'), new_date = dp.getUTCDate(), i = $.inArray(e.target, this.inputs), l = this.inputs.length; if (i === -1) return; $.each(this.pickers, function(i, p){ if (!p.getUTCDate()) p.setUTCDate(new_date); }); if (new_date < this.dates[i]){ // Date being moved earlier/left while (i >= 0 && new_date < this.dates[i]){ this.pickers[i--].setUTCDate(new_date); } } else if (new_date > this.dates[i]){ // Date being moved later/right while (i < l && new_date > this.dates[i]){ this.pickers[i++].setUTCDate(new_date); } } this.updateDates(); delete this.updating; }, remove: function(){ $.map(this.pickers, function(p){ p.remove(); }); delete this.element.data().datepicker; } }; function opts_from_el(el, prefix){ // Derive options from element data-attrs var data = $(el).data(), out = {}, inkey, replace = new RegExp('^' + prefix.toLowerCase() + '([A-Z])'); prefix = new RegExp('^' + prefix.toLowerCase()); function re_lower(_,a){ return a.toLowerCase(); } for (var key in data) if (prefix.test(key)){ inkey = key.replace(replace, re_lower); out[inkey] = data[key]; } return out; } function opts_from_locale(lang){ // Derive options from locale plugins var out = {}; // Check if "de-DE" style date is available, if not language should // fallback to 2 letter code eg "de" if (!dates[lang]){ lang = lang.split('-')[0]; if (!dates[lang]) return; } var d = dates[lang]; $.each(locale_opts, function(i,k){ if (k in d) out[k] = d[k]; }); return out; } var old = $.fn.datepicker; $.fn.datepicker = function(option){ var args = Array.apply(null, arguments); args.shift(); var internal_return; this.each(function(){ var $this = $(this), data = $this.data('datepicker'), options = typeof option === 'object' && option; if (!data){ var elopts = opts_from_el(this, 'date'), // Preliminary otions xopts = $.extend({}, defaults, elopts, options), locopts = opts_from_locale(xopts.language), // Options priority: js args, data-attrs, locales, defaults opts = $.extend({}, defaults, locopts, elopts, options); if ($this.is('.input-daterange') || opts.inputs){ var ropts = { inputs: opts.inputs || $this.find('input').toArray() }; $this.data('datepicker', (data = new DateRangePicker(this, $.extend(opts, ropts)))); } else { $this.data('datepicker', (data = new Datepicker(this, opts))); } } if (typeof option === 'string' && typeof data[option] === 'function'){ internal_return = data[option].apply(data, args); if (internal_return !== undefined) return false; } }); if (internal_return !== undefined) return internal_return; else return this; }; var defaults = $.fn.datepicker.defaults = { autoclose: false, beforeShowDay: $.noop, calendarWeeks: false, clearBtn: false, daysOfWeekDisabled: [], endDate: Infinity, forceParse: true, format: 'mm/dd/yyyy', keyboardNavigation: true, language: 'en', minViewMode: 0, multidate: false, multidateSeparator: ',', orientation: "auto", rtl: false, startDate: -Infinity, startView: 0, todayBtn: false, todayHighlight: false, weekStart: 0 }; var locale_opts = $.fn.datepicker.locale_opts = [ 'format', 'rtl', 'weekStart' ]; $.fn.datepicker.Constructor = Datepicker; var dates = $.fn.datepicker.dates = { en: { days: ["Sunday", "Monday", "Tuesday", "Wednesday", "Thursday", "Friday", "Saturday", "Sunday"], daysShort: ["Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat", "Sun"], daysMin: ["Su", "Mo", "Tu", "We", "Th", "Fr", "Sa", "Su"], months: ["January", "February", "March", "April", "May", "June", "July", "August", "September", "October", "November", "December"], monthsShort: ["Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec"], today: "Today", clear: "Clear" } }; var DPGlobal = { modes: [ { clsName: 'days', navFnc: 'Month', navStep: 1 }, { clsName: 'months', navFnc: 'FullYear', navStep: 1 }, { clsName: 'years', navFnc: 'FullYear', navStep: 10 }], isLeapYear: function(year){ return (((year % 4 === 0) && (year % 100 !== 0)) || (year % 400 === 0)); }, getDaysInMonth: function(year, month){ return [31, (DPGlobal.isLeapYear(year) ? 29 : 28), 31, 30, 31, 30, 31, 31, 30, 31, 30, 31][month]; }, validParts: /dd?|DD?|mm?|MM?|yy(?:yy)?/g, nonpunctuation: /[^ -\/:-@\[\u3400-\u9fff-`{-~\t\n\r]+/g, parseFormat: function(format){ // IE treats \0 as a string end in inputs (truncating the value), // so it's a bad format delimiter, anyway var separators = format.replace(this.validParts, '\0').split('\0'), parts = format.match(this.validParts); if (!separators || !separators.length || !parts || parts.length === 0){ throw new Error("Invalid date format."); } return {separators: separators, parts: parts}; }, parseDate: function(date, format, language){ if (!date) return undefined; if (date instanceof Date) return date; if (typeof format === 'string') format = DPGlobal.parseFormat(format); var part_re = /([\-+]\d+)([dmwy])/, parts = date.match(/([\-+]\d+)([dmwy])/g), part, dir, i; if (/^[\-+]\d+[dmwy]([\s,]+[\-+]\d+[dmwy])*$/.test(date)){ date = new Date(); for (i=0; i < parts.length; i++){ part = part_re.exec(parts[i]); dir = parseInt(part[1]); switch (part[2]){ case 'd': date.setUTCDate(date.getUTCDate() + dir); break; case 'm': date = Datepicker.prototype.moveMonth.call(Datepicker.prototype, date, dir); break; case 'w': date.setUTCDate(date.getUTCDate() + dir * 7); break; case 'y': date = Datepicker.prototype.moveYear.call(Datepicker.prototype, date, dir); break; } } return UTCDate(date.getUTCFullYear(), date.getUTCMonth(), date.getUTCDate(), 0, 0, 0); } parts = date && date.match(this.nonpunctuation) || []; date = new Date(); var parsed = {}, setters_order = ['yyyy', 'yy', 'M', 'MM', 'm', 'mm', 'd', 'dd'], setters_map = { yyyy: function(d,v){ return d.setUTCFullYear(v); }, yy: function(d,v){ return d.setUTCFullYear(2000+v); }, m: function(d,v){ if (isNaN(d)) return d; v -= 1; while (v < 0) v += 12; v %= 12; d.setUTCMonth(v); while (d.getUTCMonth() !== v) d.setUTCDate(d.getUTCDate()-1); return d; }, d: function(d,v){ return d.setUTCDate(v); } }, val, filtered; setters_map['M'] = setters_map['MM'] = setters_map['mm'] = setters_map['m']; setters_map['dd'] = setters_map['d']; date = UTCDate(date.getFullYear(), date.getMonth(), date.getDate(), 0, 0, 0); var fparts = format.parts.slice(); // Remove noop parts if (parts.length !== fparts.length){ fparts = $(fparts).filter(function(i,p){ return $.inArray(p, setters_order) !== -1; }).toArray(); } // Process remainder function match_part(){ var m = this.slice(0, parts[i].length), p = parts[i].slice(0, m.length); return m === p; } if (parts.length === fparts.length){ var cnt; for (i=0, cnt = fparts.length; i < cnt; i++){ val = parseInt(parts[i], 10); part = fparts[i]; if (isNaN(val)){ switch (part){ case 'MM': filtered = $(dates[language].months).filter(match_part); val = $.inArray(filtered[0], dates[language].months) + 1; break; case 'M': filtered = $(dates[language].monthsShort).filter(match_part); val = $.inArray(filtered[0], dates[language].monthsShort) + 1; break; } } parsed[part] = val; } var _date, s; for (i=0; i < setters_order.length; i++){ s = setters_order[i]; if (s in parsed && !isNaN(parsed[s])){ _date = new Date(date); setters_map[s](_date, parsed[s]); if (!isNaN(_date)) date = _date; } } } return date; }, formatDate: function(date, format, language){ if (!date) return ''; if (typeof format === 'string') format = DPGlobal.parseFormat(format); var val = { d: date.getUTCDate(), D: dates[language].daysShort[date.getUTCDay()], DD: dates[language].days[date.getUTCDay()], m: date.getUTCMonth() + 1, M: dates[language].monthsShort[date.getUTCMonth()], MM: dates[language].months[date.getUTCMonth()], yy: date.getUTCFullYear().toString().substring(2), yyyy: date.getUTCFullYear() }; val.dd = (val.d < 10 ? '0' : '') + val.d; val.mm = (val.m < 10 ? '0' : '') + val.m; date = []; var seps = $.extend([], format.separators); for (var i=0, cnt = format.parts.length; i <= cnt; i++){ if (seps.length) date.push(seps.shift()); date.push(val[format.parts[i]]); } return date.join(''); }, headTemplate: '<thead>'+ '<tr>'+ '<th class="prev">«</th>'+ '<th colspan="5" class="datepicker-switch"></th>'+ '<th class="next">»</th>'+ '</tr>'+ '</thead>', contTemplate: '<tbody><tr><td colspan="7"></td></tr></tbody>', footTemplate: '<tfoot>'+ '<tr>'+ '<th colspan="7" class="today"></th>'+ '</tr>'+ '<tr>'+ '<th colspan="7" class="clear"></th>'+ '</tr>'+ '</tfoot>' }; DPGlobal.template = '<div class="datepicker">'+ '<div class="datepicker-days">'+ '<table class=" table-condensed">'+ DPGlobal.headTemplate+ '<tbody></tbody>'+ DPGlobal.footTemplate+ '</table>'+ '</div>'+ '<div class="datepicker-months">'+ '<table class="table-condensed">'+ DPGlobal.headTemplate+ DPGlobal.contTemplate+ DPGlobal.footTemplate+ '</table>'+ '</div>'+ '<div class="datepicker-years">'+ '<table class="table-condensed">'+ DPGlobal.headTemplate+ DPGlobal.contTemplate+ DPGlobal.footTemplate+ '</table>'+ '</div>'+ '</div>'; $.fn.datepicker.DPGlobal = DPGlobal; /* DATEPICKER NO CONFLICT * =================== */ $.fn.datepicker.noConflict = function(){ $.fn.datepicker = old; return this; }; /* DATEPICKER DATA-API * ================== */ $(document).on( 'focus.datepicker.data-api click.datepicker.data-api', '[data-provide="datepicker"]', function(e){ var $this = $(this); if ($this.data('datepicker')) return; e.preventDefault(); // component click requires us to explicitly show it $this.datepicker('show'); } ); $(function(){ $('[data-provide="datepicker-inline"]').datepicker(); }); }(window.jQuery));
总结：使用了标准清理模式，每次操作之后，工作单元对象都被销毁了，再次进行其他操作的时候，又会重新创建对象的实例。
完成之后项目的结构是：
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