ASP.NET MVC5网站开发修改及删除文章（十） |
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上次做了显示文章列表，再实现修改和删除文章这部分内容就结束了，这次内容比较简单，由于做过了添加文章，修改文章非常类似，就是多了一个TryUpdateModel部分更新模型数据 。 由于公共模型和附件是一对多的关系，我们把删除公共模型和删除附件写在一起 。 在BLL的BaseRepository类中有默认的Delete方法，但这个方法中仅删除模型，不会删除外键，所以在CommonModelRepository在new一个出来封印掉默认的方法 。
public new bool Delete(Models.CommonModel commonModel, bool isSave = true)
{
if (commonModel.Attachment != null) nContext.Attachments.RemoveRange(commonModel.Attachment);
nContext.CommonModels.Remove(commonModel);
return isSave ? nContext.SaveChanges() > 0 : true;
}
这个的意思是封印掉继承的Delete方法，在新的方法中如果存在附加那么先删除附件，再删除公共模型 。那么如果我们还想调用基类的Delete方法怎么办？可以用base.Delete 。 好了，现在可以开始删除了 。 在ArticleController中添加Delete方法
/// <summary>
/// 删除
/// </summary>
/// <param name="id">文章id</param>
/// <returns></returns>
public JsonResult Delete(int id)
{
//删除附件
var _article = articleService.Find(id);
if(_article == null) return Json(false);
//附件列表
var _attachmentList = _article.CommonModel.Attachment;
var _commonModel = _article.CommonModel;
//删除文章
if (articleService.Delete(_article))
{
//删除附件文件
foreach (var _attachment in _attachmentList)
{
System.IO.File.Delete(Server.MapPath(_attachment.FileParth));
}
//删除公共模型
commonModelService.Delete(_commonModel);
return Json(true);
}
else return Json(false);
}
二、修改文章
/// <summary>
/// 修改
/// </summary>
/// <param name="id"></param>
/// <returns></returns>
public ActionResult Edit(int id)
{
return View(articleService.Find(id));
}
右键添加视图，这个跟添加类似，没什么好说的直接上代码
@section scripts{
<script type="text/javascript" src="'/Scripts/KindEditor/kindeditor-min.js"></script>
<script type="text/javascript">
//编辑框
KindEditor.ready(function (K) {
window.editor = K.create(#Content, {
height: 500px,
uploadJson: @Url.Action("Upload", "Attachment"),
fileManagerJson: @Url.Action("FileManagerJson", "Attachment", new { id = @Model.CommonModel.ModelID }),
allowFileManager: true,
formatUploadUrl: false
});
//首页图片
var editor2 = K.editor({
fileManagerJson: @Url.Action("FileManagerJson", "Attachment", new {id=@Model.CommonModel.ModelID })
});
K(#btn_picselect).click(function () {
editor2.loadPlugin(filemanager, function () {
editor2.plugin.filemanagerDialog({
viewType: VIEW,
dirName: image,
clickFn: function (url, title) {
var url;
$.ajax({
type: "post",
url: "@Url.Action("CreateThumbnail", "Attachment")",
data: { originalPicture: url },
async: false,
success: function (data) {
if (data == null) alert("生成缩略图失败！");
else {
K(#CommonModel_DefaultPicUrl).val(data);
K(#imgpreview).attr("src", data);
}
editor2.hideDialog();
}
});
}
});
});
});
});
</script>
}
@model Ninesky.Models.Article
@using (Html.BeginForm())
{ @Html.AntiForgeryToken()
<div class="form-horizontal" role="form">
<h4>添加文章</h4>
<hr />
@Html.ValidationSummary(true)
<div class="form-group">
<label class="control-label col-sm-2" for="CommonModel_CategoryID">栏目</label>
<div class="col-sm-10">
<input id="CommonModel_CategoryID" name="CommonModel.CategoryID" data-options="url:@Url.Action("JsonTree", "Category", new { model="Article" })" class="easyui-combotree" style="height: 34px; width: 280px;" value="@Model.CommonModel.CategoryID" />
@Html.ValidationMessageFor(model => model.CommonModel.CategoryID)</div>
</div>
<div class="form-group">
@Html.LabelFor(model => model.CommonModel.Title, new { @class = "control-label col-sm-2" })
<div class="col-sm-10">
@Html.TextBoxFor(model => model.CommonModel.Title, new { @class = "form-control" })
@Html.ValidationMessageFor(model => model.CommonModel.Title)</div>
</div>
<div class="form-group">
@Html.LabelFor(model => model.Author, new { @class = "control-label col-sm-2" })
<div class="col-sm-10">
@Html.TextBoxFor(model => model.Author, new { @class = "form-control" })
@Html.ValidationMessageFor(model => model.Author)
</div>
</div>
<div class="form-group">
@Html.LabelFor(model => model.Source, new { @class = "control-label col-sm-2" })
<div class="col-sm-10">
@Html.TextBoxFor(model => model.Source, new { @class = "form-control" })
@Html.ValidationMessageFor(model => model.Source)
</div>
</div>
<div class="form-group">
@Html.LabelFor(model => model.Intro, new { @class = "control-label col-sm-2" })
<div class="col-sm-10">
@Html.TextAreaFor(model => model.Intro, new { @class = "form-control" })
@Html.ValidationMessageFor(model => model.Intro)
</div>
</div>
<div class="form-group">
@Html.LabelFor(model => model.Content, new { @class = "control-label col-sm-2" })
<div class="col-sm-10">
@Html.EditorFor(model => model.Content)
@Html.ValidationMessageFor(model => model.Content)
</div>
</div>
<div class="form-group">
@Html.LabelFor(model => model.CommonModel.DefaultPicUrl, new { @class = "control-label col-sm-2" })
<div class="col-sm-10">
<img id="imgpreview" class="thumbnail" src="@Model.CommonModel.DefaultPicUrl" />
@Html.HiddenFor(model => model.CommonModel.DefaultPicUrl)
<a id="btn_picselect" class="easyui-linkbutton">选择…</a>
@Html.ValidationMessageFor(model => model.CommonModel.DefaultPicUrl)
</div>
</div>
<div class="form-group">
<div class="col-sm-offset-2 col-sm-10">
<input type="submit" value="保存" class="btn btn-default" />
</div>
</div>
</div>
}
开始做后台接受代码，在ArticleController中添加如下代码 。
[HttpPost]
[ValidateInput(false)]
[ValidateAntiForgeryToken]
public ActionResult Edit()
{
int _id = int.Parse(ControllerContext.RouteData.GetRequiredString("id"));
var article = articleService.Find(_id);
TryUpdateModel(article, new string[] { "Author", "Source", "Intro", "Content" });
TryUpdateModel(article.CommonModel, "CommonModel", new string[] { "CategoryID", "Title", "DefaultPicUrl" });
if(ModelState.IsValid)
{
if (articleService.Update(article))
{
//附件处理
InterfaceAttachmentService _attachmentService = new AttachmentService();
var _attachments = _attachmentService.FindList(article.CommonModel.ModelID, User.Identity.Name, string.Empty,true).ToList();
foreach (var _att in _attachments)
{
var _filePath = Url.Content(_att.FileParth);
if ((article.CommonModel.DefaultPicUrl != null && article.CommonModel.DefaultPicUrl.IndexOf(_filePath) >= 0) || article.Content.IndexOf(_filePath) > 0)
{
_att.ModelID = article.ModelID;
_attachmentService.Update(_att);
}
else
{
System.IO.File.Delete(Server.MapPath(_att.FileParth));
_attachmentService.Delete(_att);
}
}
return View("EditSucess", article);
}
}
return View(article);
}
详细讲解一下吧： 1、[ValidateInput(false)] 表示不验证输入内容 。因为文章内容包含html代码，防止提交失败 。 2、[ValidateAntiForgeryToken]是为了防止伪造跨站请求的，也就说只有本真的请求才能通过 。
见图中的红线部分，在试图中构造验证字符串，然后再后台验证 。 3、public ActionResult Edit() 。看这个方法没有接收任何数据，我们再方法中使用TryUpdateModel更新模型 。因为不能完全相信用户，比如如果用户构造一个CateggoryID过来，就会把文章发布到其他栏目去 。
这个是在路由中获取id参数
再看这两行，略有不同 三、修改文章列表
<script type="text/javascript">
$("#article_list").datagrid({
loadMsg: 加载中……,
pagination:true,
url: @Url.Action("JsonList","Article"),
columns: [[
{ field: ModelID, title: ID, checkbox: true },
{ field: CategoryName, title: 栏目},
{ field: Title, title: 标题},
{ field: Inputer, title: 录入, align: right },
{ field: Hits, title: 点击, align: right },
{ field: ReleaseDate, title: 发布日期, align: right, formatter: function (value, row, index) { return jsonDateFormat(value); } },
{ field: StatusString, title: 状态, width: 100, align: right }
]],
toolbar: #toolbar,
idField: ModelID,
onDblClickRow: function (rowIndex, rowData) { window.parent.addTab("修改文章", "@Url.Action("Edit","Article")/" + rowData.ModelID, "icon-page"); }
});
//查找
$("#btn_search").click(function () {
$("#article_list").datagrid(load, {
title: $("#textbox_title").val(),
input: $("#textbox_inputer").val(),
category: $("#combo_category").combotree(getValue),
fromDate: $("#datebox_fromdate").datebox(getValue),
toDate: $("#datebox_todate").datebox(getValue)
});
});
//修改事件
function eidt() {
var rows = $("#article_list").datagrid("getSelections");
if (!rows || rows.length < 1) {
$.messager.alert("提示", "请选择要修改的行!");
return;
}
else if (rows.length != 1) {
$.messager.alert("提示", "仅能选择一行!");
return;
}
else {
window.parent.addTab("修改文章", "@Url.Action("Edit","Article")/" + rows[0].ModelID, "icon-page");
}
}
//删除
function del()
{
var rows = $("#article_list").datagrid("getSelections");
if (!rows || rows.length < 1) {
$.messager.alert("提示", "未选择任何行!");
return;
}
else if (rows.length > 0) {
$.messager.confirm("确认", "您确定要删除所选行吗？", function (r) {
if (r) {
$.messager.progress();
$.each(rows, function (index, value) {
$.ajax({
type: "post",
url: "@Url.Action("Delete", "Article")",
data: { id: value.ModelID },
async: false,
success: function (data) {
}
});
});
$.messager.progress(close);
//清除选择行
rows.length = 0;
$("#article_list").datagrid(reload);
}
});
return;
}
}
</script>
增加了修改方法、删除方法，在datagrid里添加行双击进入修改视图的方法 onDblClickRow: function (rowIndex, rowData) { window.parent.addTab("修改文章", "@Url.Action("Edit","Article")/" + rowData.ModelID, "icon-page"); } 2、
四、我的文章列表
/// <summary>
/// 文章列表Json【注意权限问题，普通人员是否可以访问？】
/// </summary>
/// <param name="title">标题</param>
/// <param name="input">录入</param>
/// <param name="category">栏目</param>
/// <param name="fromDate">日期起</param>
/// <param name="toDate">日期止</param>
/// <param name="pageIndex">页码</param>
/// <param name="pageSize">每页记录</param>
/// <returns></returns>
public ActionResult JsonList(string title, string input, Nullable<int> category, Nullable<DateTime> fromDate, Nullable<DateTime> toDate, int pageIndex = 1, int pageSize = 20)
{
if (category == null) category = 0;
int _total;
var _rows = commonModelService.FindPageList(out _total, pageIndex, pageSize, "Article", title, (int)category, input, fromDate, toDate, 0).Select(
cm => new Ninesky.Web.Models.CommonModelViewModel()
{
CategoryID = cm.CategoryID,
CategoryName = cm.Category.Name,
DefaultPicUrl = cm.DefaultPicUrl,
Hits = cm.Hits,
Inputer = cm.Inputer,
Model = cm.Model,
ModelID = cm.ModelID,
ReleaseDate = cm.ReleaseDate,
Status = cm.Status,
Title = cm.Title
});
return Json(new { total = _total, rows = _rows.ToList() });
}
public ActionResult MyList()
{
return View();
}
/// <summary>
/// 我的文章列表
/// </summary>
/// <param name="title"></param>
/// <param name="fromDate"></param>
/// <param name="toDate"></param>
/// <param name="pageIndex"></param>
/// <param name="pageSize"></param>
/// <returns></returns>
public ActionResult MyJsonList(string title, Nullable<DateTime> fromDate, Nullable<DateTime> toDate, int pageIndex = 1, int pageSize = 20)
{
int _total;
var _rows = commonModelService.FindPageList(out _total, pageIndex, pageSize, "Article", title, 0, string.Empty, fromDate, toDate, 0).Select(
cm => new Ninesky.Web.Models.CommonModelViewModel()
{
CategoryID = cm.CategoryID,
CategoryName = cm.Category.Name,
DefaultPicUrl = cm.DefaultPicUrl,
Hits = cm.Hits,
Inputer = cm.Inputer,
Model = cm.Model,
ModelID = cm.ModelID,
ReleaseDate = cm.ReleaseDate,
Status = cm.Status,
Title = cm.Title
});
return Json(new { total = _total, rows = _rows.ToList() }, JsonRequestBehavior.AllowGet);
}
为MyList右键添加视图
<div id="toolbar">
<div>
<a href="#" class="easyui-linkbutton" data-options="iconCls:icon-edit,plain:true" onclick="eidt()">修改</a>
<a href="#" class="easyui-linkbutton" data-options="iconCls:icon-remove,plain:true" onclick="del()">删除</a>
<a href="#" class="easyui-linkbutton" data-options="iconCls:icon-reload,plain:true" onclick="$(#article_list).datagrid(reload);">刷新</a>
</div>
<div class="form-inline">
<label>标题</label> <input id="textbox_title" class="input-easyui" style="width:280px" />
<label>添加日期</label>
<input id="datebox_fromdate" type="datetime" class="easyui-datebox" style="width:120px" /> -
<input id="datebox_todate" type="datetime" class="easyui-datebox" style="width:120px; " />
<a href="#" id="btn_search" data-options="iconCls:icon-search" class="easyui-linkbutton">查询</a>
</div>
</div>
<table id="article_list"></table>
<script src="'/Scripts/Common.js"></script>
<script type="text/javascript">
$("#article_list").datagrid({
loadMsg: 加载中……,
pagination:true,
url: @Url.Action("MyJsonList", "Article"),
columns: [[
{ field: ModelID, title: ID, checkbox: true },
{ field: CategoryName, title: 栏目},
{ field: Title, title: 标题},
{ field: Inputer, title: 录入, align: right },
{ field: Hits, title: 点击, align: right },
{ field: ReleaseDate, title: 发布日期, align: right, formatter: function (value, row, index) { return jsonDateFormat(value); } },
{ field: StatusString, title: 状态, width: 100, align: right }
]],
toolbar: #toolbar,
idField: ModelID,
onDblClickRow: function (rowIndex, rowData) { window.parent.addTab("修改文章", "@Url.Action("Edit","Article")/" + rowData.ModelID, "icon-page"); }
});
//查找
$("#btn_search").click(function () {
$("#article_list").datagrid(load, {
title: $("#textbox_title").val(),
fromDate: $("#datebox_fromdate").datebox(getValue),
toDate: $("#datebox_todate").datebox(getValue)
});
});
//修改事件
function eidt() {
var rows = $("#article_list").datagrid("getSelections");
if (!rows || rows.length < 1) {
$.messager.alert("提示", "请选择要修改的行!");
return;
}
else if (rows.length != 1) {
$.messager.alert("提示", "仅能选择一行!");
return;
}
else {
window.parent.addTab("修改文章", "@Url.Action("Edit","Article")/" + rows[0].ModelID, "icon-page");
}
}
//删除
function del()
{
var rows = $("#article_list").datagrid("getSelections");
if (!rows || rows.length < 1) {
$.messager.alert("提示", "未选择任何行!");
return;
}
else if (rows.length > 0) {
$.messager.confirm("确认", "您确定要删除所选行吗？", function (r) {
if (r) {
$.messager.progress();
$.each(rows, function (index, value) {
$.ajax({
type: "post",
url: "@Url.Action("Delete", "Article")",
data: { id: value.ModelID },
async: false,
success: function (data) {
}
});
});
$.messager.progress(close);
//清除选择行
rows.length = 0;
$("#article_list").datagrid(reload);
}
});
return;
}
}
</script>
要注意的是删除文章时删除的次序，修改文章时TryUpdateModel的使用，希望本文对大家的学习有所帮助 。 |
