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。
一、删除文章
由于公共模型跟,文章,附件有关联,所以这里的删除次序很重要,如果先删除模型,那么文章ModelID和附件的ModelID多会变成null,所以要先先删除文章和附件再删除公共模型。
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
这个部分跟添加文章非常类似
首先在ArticleController中添加显示编辑视图的Edit
/// <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
第一行直接更新article模型。第一个参数是要更新的模型,第二个参数是更新的字段。
第二行略有不同,增加了一个前缀参数,我们看视图生成的代码 @Html.TextBoxFor(model => model.CommonModel.Title 是带有前缀CommonModel的。所以这里必须使用前缀来更新视图。
三、修改文章列表
写完文章后,就要更改文章列表代码用来删除和修改文章。
打开List视图,修改部分由2处。
1、js脚本部分
<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
我的文章列表与全部文章类似,并简化掉了部分内容那个,更加简单,直接上代码了
Article控制器中添加
/// <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。
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