5.在MVC中使用泛型倉儲模式和工做單元來進行增刪查改
原文連接：http://www.c-sharpcorner.com/UploadFile/3d39b4/crud-operations-using-the-generic-repository-pattern-and-uni/javascript
或者：http://www.codeproject.com/Articles/814768/CRUD-Operations-Using-the-Generic-Repository-Pattecss
系列目錄：html
- Relationship in Entity Framework Using Code First Approach With Fluent API【【使用EF Code-First方式和Fluent API來探討EF中的關係】】
- Code First Migrations with Entity Framework【使用EF 作數據庫遷移】
- CRUD Operations Using Entity Framework 5.0 Code First Approach in MVC【在MVC中使用EF 5.0作增刪查改】
- CRUD Operations Using the Repository Pattern in MVC【在MVC中使用倉儲模式，來作增刪查改】
- CRUD Operations Using the Generic Repository Pattern and Unit of Work in MVC【在MVC中使用泛型倉儲模式和工做單元來作增刪查改】
- CRUD Operations Using the Generic Repository Pattern and Dependency Injection in MVC【在MVC中使用泛型倉儲模式和依賴注入，來作增刪查改】
源代碼下載：https://github.com/caofangsheng93/GenericRepositoryCURDjava
這篇文章，我將會介紹在ASP.NET MVC應用程序中使用泛型倉儲模式和工做單元。我將開發一個程序，對Book實體進行增刪查改，爲了保證這篇文章簡單，便於你們理解泛型倉儲模式和工做單元，在這篇文章中，我將只會使用一個Book實體。node
在上篇文章中「4.CRUD Operations Using the Repository Pattern in MVC【在MVC中使用倉儲模式進行增刪查改】「講到了倉儲模式，裏面咱們爲Book實體，建立了一個倉儲類，可是這個倉儲僅僅是隻能爲一個實體服務的。試想一下，若是是真正的企業級開發，咱們會有不少實體，難道，咱們要爲每個實體都建立一個倉儲類麼？？？顯然是不現實的。對於這個問題，咱們須要建立一個能夠爲全部實體公用的倉儲，因此這裏引入泛型倉儲。這樣就避免了重複編碼。jquery
下面的圖中，講到了兩個開發者，討論一個問題："是否須要建立一個新的零件或者是利用已經存在的零件？" ------若是你選擇第一種，那麼就是這篇文章講到的，"4.CRUD Operations Using the Repository Pattern in MVC【在MVC中使用倉儲模式進行增刪查改】"git
但我在這裏選擇第二種，也就是這篇文章，我將要講到的。--使用泛型倉儲模式來重用代碼，減小冗餘代碼。github
既然說到倉儲，那麼什麼是倉儲模式呢？數據庫
倉儲模式旨在數據訪問層和業務邏輯層之間建立一個抽象層。倉儲模式是數據訪問模式，旨在達到數據訪問的更鬆散的耦合性。咱們在單獨的類，或者類庫中建立數據訪問的邏輯，這就是倉儲。倉儲的職責就是和業務邏輯層進行通訊。express
在這篇文章中，我將會爲全部的實體設計一個公共的泛型倉儲，另外還有一個工做單元類。這個工做單元類，爲每一個實體建立倉儲的實例，而後倉儲實例用來作增刪查改操做。我在控制器中建立工做單元類的實例，而後依據具體的實體，建立倉儲的實例，而後就能夠使用倉儲中的方法進行每一個操做了。
下面的圖表顯示了倉儲和EF數據上下文之間的關係。在圖中，MVC控制器直接經過工做單元和倉儲進行交互，而不是直接和EF進行交互。
講到這裏，你們可能就會有疑問了,爲何要使用工做單元呢？？？
工做單元就像它的名字同樣，作某件事情。在這篇文章中，工做單元主要作的是：咱們建立工做單元的實例，而後工做單元爲咱們初始化EF數據上下文，而後每一個倉儲的實例都使用同一個數據上下文實例進行數據庫操做。所以工做單元就是，用來確保全部的倉儲實例都使用同一個數據上下文實例。
好了理論到此爲止，講的差很少了。如今咱們開始進入正題：
先看看項目的結構：
這三個項目就不用作過多介紹了吧，前面的文章已經說了不少次了...
EF.Entity類庫中，添加BaseEntity實體：
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編號 /// </summary>
public int ID { get; set; } /// <summary>
/// 添加時間 /// </summary>
public DateTime AddedDate { get; set; } /// <summary>
/// 修改時間 /// </summary>
public DateTime ModifiedDate { get; set; } /// <summary>
/// IP地址 /// </summary>
public string IP { get; set; } } }
Book實體：
using System; using System.Collections.Generic; using System.Linq; using System.Text; using System.Threading.Tasks; namespace EF.Entity { public class Book:BaseEntity { /// <summary>
/// 書名 /// </summary>
public string Title { get; set; } /// <summary>
/// 做者 /// </summary>
public string Author { get; set; } /// <summary>
/// ISBN編號 /// </summary>
public string ISBN { get; set; } /// <summary>
/// 出版時間 /// </summary>
public DateTime PublishedDate { get; set; } } }
Entity.Data類庫中BookMap類：
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() { //配置主鍵
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數據上下文類：
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);
} } }
而後啓用數據庫遷移，自動生成數據庫，這裏的步驟就省略了，由於前面的文章已經說了。
接着，在EF.Data項目中建立泛型倉儲類，裏面提供了增刪查改的方法，這個泛型的倉儲類中，有一個帶DbContext參數的構造函數，因此當咱們實例化倉儲的時候，傳遞一個數據上下文對象給倉儲，全部的實體就能夠使用同一個數據上下文對象了。咱們使用了數據上下文的SaveChange方法，可是你一樣能夠使用工做單元類的Save方法，由於這二者使用的是同一個數據上下文對象，下面是泛型的倉儲類代碼：【爲了使文章更容易理解，這裏我不建立泛型的倉儲接口】。
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 /// 泛型倉儲類 14 /// </summary>
15 /// <typeparam name="T"></typeparam>
16 public class Repository<T> where T:BaseEntity 17 { 18 /// <summary>
19 /// 數據上下文變量 20 /// </summary>
21 private readonly EFDbContext db; 22 string errorMessage = string.Empty; 23
24 #region 封裝屬性
25 /// <summary>
26 /// 實體訪問字段 27 /// </summary>
28 private IDbSet<T> entities; 29
30 /// <summary>
31 /// 封裝屬性 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 構造函數
50 public Repository(EFDbContext context) 51 { 52 this.db = context; 53 } 54 #endregion
55
56 #region 泛型方法--根據Id查找實體
57 /// <summary>
58 /// 泛型方法--根據Id查找實體 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);//把實體的狀態設置爲Added
80 this.db.SaveChanges();//保存到數據庫
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();//保存到數據庫
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 //拋出捕獲的異常
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 }
下面建立工做單元類，UnitOfWork,這個工做單元類繼承自IDisposable接口，因此它的實例將會在每一個控制器中被 釋放掉。工做單元類初始化了程序的上下文，工做單元類的核心就是Repository<T>() 類型的泛型方法，這個方法爲繼承自BaseEntity的每一個實體返回了倉儲實例。下面是工做單元類的代碼：
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; //構造函數中初始化上下文對象
} public UnitOfWork() { db = new EFDbContext(); //構造函數中初始化上下文對象
} #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;//獲取當前成員名稱
if (!repositories.ContainsKey(type))//若是repositories中不包含Name
{ var repositoryType = typeof(Repository<>);//獲取Repository<>類型
var repositoryInstance = Activator.CreateInstance(repositoryType.MakeGenericType(typeof(T)), db); repositories.Add(type, repositoryInstance); } return (Repository<T>)repositories[type]; } #endregion } }
好了，底層的代碼，寫完了，如今開始寫控制器的代碼：咱們建立一個Book控制器，進行增刪查改。
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 { //建立並實例化工做單元來
private UnitOfWork unitOfWork = new UnitOfWork(); private Repository<Book> bookRepository; public BookController() { //控制器的構造函數中，經過工做單元類的實例，來調用Repository<T>方法，實例化Book倉儲
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) //若是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爲0表示是添加
{ model.AddedDate = DateTime.Now; model.ModifiedDate = DateTime.Now; model.IP = Request.UserHostAddress;//獲取客戶端的主機地址
bookRepository.Insert(model); } else //ID不爲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 視圖代碼：
@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視圖代碼：
@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 這裏的話，在佈局頁中要添加這個塊： @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視圖：
@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視圖：
@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>
修改一下默認路由爲Book控制器，Index方法，而後運行項目》》》
後記：
用到的兩個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));
總結：使用了標準清理模式，每次操做以後，工做單元對象都被銷燬了，再次進行其餘操做的時候，又會從新建立對象的實例。
完成以後項目的結構是：
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