ASP.NET MVC5+EF6+EasyUI 后台管理系统（46）-工作流设计-设计分支

系列目录

步骤设置完毕之后，就要设置好流转了，比如财务申请大于50000元（请假天数>5天）要总经理审批，否则财务审批之后就结束了。

设置分支没有任何关注点，我们把关注点都放在了用户的起草表单。所以本节如同设置字段，设置步骤一样，只需要填充好Flow_StepRule表

表结构：Flow_StepRule表主要是字段对比值，所以需要操作符，我们约定操作符为=、>、<、<=、>=、!=六种

　　　　表Flow_StepRule的主表是Flow_Step，所以跟步骤一样为主从关系的设置

我是这样设计的，先获取步骤列表，再按列表的步骤来设置分支，如图

分支具体代码如下

<table id="List"></table>
<div id="modalwindow" class="easyui-window" data-options="modal:true,closed:true,minimizable:false,shadow:false"></div>
<script type="text/javascript">
    $(function () {
        $('#List').datagrid({
            url: '@Url.Action("GetStepList")?id=@(ViewBag.FormId)',
             SetGridWidthSub(10),
            methord: 'post',
            height: SetGridHeightSub(39),
            fitColumns: true,
            sortName: 'Sort',
            sortOrder: 'asc',
            idField: 'Id',
            pageSize: 15,
            pageList: [15, 20, 30, 40, 50],
            pagination: true,
            striped: true, //奇偶行是否区分
            singleSelect: true,//单选模式
            //rownumbers: true,//行号
            columns: [[
                { field: 'StepNo', title: '步骤',  80 },
                { field: 'Id', title: '',  80, hidden: true },
                { field: 'Name', title: '步骤名称',  80, sortable: true },
                { field: 'Remark', title: '步骤说明',  280, sortable: true },
                { field: 'Sort', title: '排序',  80, sortable: true, hidden: true },
                { field: 'FormId', title: '所属表单',  80, sortable: true, hidden: true },
                { field: 'FlowRule', title: '流转规则',  80, sortable: true },
                { field: 'Action', title: '操作分支',align:'center',  80, sortable: true }
            ]]
        });
    });
    //ifram 返回
    function frameReturnByClose() {
        $("#modalwindow").window('close');
    }
    function frameReturnByReload(flag) {
        if (flag)
            $("#List").datagrid('load');
        else
            $("#List").datagrid('reload');
    }
    function frameReturnByMes(mes) {
        $.messageBox5s('提示', mes);
    }
    function SetRule(stepId)
    {
        $("#modalwindow").html("<iframe width='100%' height='100%' scrolling='no' frameborder='0'' src='/Flow/Form/StepRuleList?stepId=" + stepId + "&formId=@(ViewBag.FormId)'></iframe>");
        $("#modalwindow").window({ title: '设置分支',  620, height: 300, iconCls: 'icon-add' }).window('open');
    }
</script>

 [SupportFilter(ActionName = "Edit")]
        public ActionResult StepList(string id)
        {
            ViewBag.FormId = id;
            return View();
        }
        [HttpPost]
        [SupportFilter(ActionName = "Edit")]
        public JsonResult GetStepList(GridPager pager, string id)
        {
            List<Flow_StepModel> stepList = stepBLL.GetList(ref pager, id);
            int i = 1;
            var json = new
            {
                total = pager.totalRows,
                rows = (from r in stepList
                        select new Flow_StepModel()
                        {
                            StepNo = "第 "+(i++)+" 步",
                            Id = r.Id,
                            Name = r.Name,
                            Remark = r.Remark,
                            Sort = r.Sort,
                            FormId = r.FormId,
                            FlowRule = r.FlowRule,
                            Action = "<a href='javascript:SetRule("" + r.Id + "")'>分支(" + GetStepRuleListByStepId(r.Id).Count() + ")</a></a>"
                        }).ToArray()

            };
            return Json(json);
        }

点击操作分支按钮将弹出分支的添加和删除

分支代码如下(增删查)

@using App.Admin;
@using App.Common;
@using App.Models.Sys;
@{
    ViewBag.Title = "主页";
    Layout = "~/Views/Shared/_Index_Layout.cshtml";
    List<permModel> perm = (List<permModel>)ViewBag.Perm;
    if (perm == null)
    {
        perm = new List<permModel>();
    }
}
<table>
    <tr>
        <td>
            <table id="List"></table>
        </td>
        <td style=" 180px; vertical-align: top">
            <table style="line-height: 40px;">
                <tr>
                    <td class="tr">字段：</td>
                    <td>
                        <select id="LeftVal">
                            @foreach (var r in (List<App.Models.Flow.Flow_FormAttrModel>)ViewBag.AttrList)
                            { 
                                <option value="@r.Id">@r.Title</option>
                            }
                        </select></td>
                </tr>
                <tr>
                    <td class="tr">操作：</td>
                    <td>
                        <select id="CenterVal">
                            <option value="=">= </option>
                            <option value=">">> </option>
                            <option value="<">< </option>
                            <option value="<="><= </option>
                            <option value=">=">>= </option>
                            <option value=">=">!= </option>
                        </select></td>
                </tr>
                <tr>
                    <td class="tr">值：</td>
                    <td>
                        <input id="RightVal" type="text" style=" 80px;" /></td>
                    <tr>
                        <td class="tr">下一步：</td>
                        <td>
                            <select id="NextVal">
                                <option value="0">结束流程</option>
                                @foreach (var r in (List<App.Models.Flow.Flow_StepModel>)ViewBag.StepList)
                                { 
                                    <option value="@r.Id">@r.Name</option>
                                }
                            </select></td>
                    </tr>

                <tr><td></td>
                    <td style="line-height:0px">
                        <a id="Result" href="javascript:AddEvent('@(ViewBag.StepId)')" class="easyui-linkbutton" data-options="iconCls:'icon-add'">添加分支</a>
               
                        </td>
                </tr>
            </table>

        </td>
    </tr>
</table>
<div id="modalwindow" class="easyui-window" data-options="modal:true,closed:true,minimizable:false,shadow:false"></div>
@Html.Partial("~/Views/Shared/_Partial_AutoGrid.cshtml")
<script type="text/javascript">
    $(function () {
        $('#List').datagrid({
            url: '@Url.Action("GetStepRuleList")?stepId=@(ViewBag.StepId)',
             SetGridWidthSub(180),
            methord: 'post',
            height: SetGridHeightSub(9),
            fitColumns: true,
            sortName: 'Id',
            sortOrder: 'desc',
            idField: 'Id',
            pageSize: 115,
            pagination: false,
            striped: true, //奇偶行是否区分
            singleSelect: true,//单选模式
            //rownumbers: true,//行号
            columns: [[
                { field: 'Id', title: 'ID',  80, hidden: true },
                { field: 'Mes', title: 'Mes',  80, hidden: true },
                { field: 'StepId', title: '步骤ID',  80, sortable: true, hidden: true },
                { field: 'AttrId', title: '字段ID',  80, sortable: true, hidden: true },
                { field: 'AttrName', title: '字段',  80, sortable: true },
                { field: 'Operator', title: '操作',  80, sortable: true },
                { field: 'Result', title: '值',  80, sortable: true },
                { field: 'NextStep', title: '下一步ID',  80, sortable: true, hidden: true },
                { field: 'NextStepName', title: '下一步',  80, sortable: true },
                { field: 'Action', title: '操作',  80},
            ]]
        });
    });
    //ifram 返回
    function frameReturnByClose() {
        $("#modalwindow").window('close');
    }
    function frameReturnByReload(flag) {
        if (flag)
            $("#List").datagrid('load');
        else
            $("#List").datagrid('reload');
    }
    function frameReturnByMes(mes) {
        $.messageBox5s('提示', mes);
    }

    //添加条件
    function AddEvent(stepId) {
        var leftVal = $("#LeftVal").val();
        var leftText = $("option[value='" + leftVal + "']").html();
        var centerVal = $("#CenterVal").val();
        var rightVal = $("#RightVal").val();
        var nextVal = $("#NextVal").val();
        if (rightVal == "") {
            $.messageBox5s('提示', "值不能为空");
            return;
        }
        $.post("@Url.Action("CreateStepEvent")", { "StepId": stepId, "AttrId": leftVal, "Operator": centerVal, "Result": rightVal, "NextStep": nextVal },
           function (data) {
               if (data.type == 1) {
                   $("#List").datagrid('load');
               } else {
                   $.messageBox5s('提示', data.message);
                   return
               }
           }, "json");
    }

    function DeleteEvent(stepId) {
        $.messager.confirm('提示', '你要删除此条件吗？', function (r) {
            if (r) {
                $.post("@Url.Action("DeleteStepRule")?id=" + stepId, function (data) {
                    if (data.type == 1) {
                        $("#List").datagrid('load');
                    } else {
                        $.messageBox5s('提示', data.message);
                        return
                    }
                }, "json");
            }
        });

    }
</script>

[SupportFilter(ActionName = "Edit")]
        public ActionResult StepRuleList(string stepId,string formId)
        {
            //获取现有的步骤
            GridPager pager = new GridPager()
            {
                rows = 1000,
                page = 1,
                sort = "Id",
                order = "desc"
            };
            
            Flow_FormModel flowFormModel = m_BLL.GetById(formId);
            List<Flow_FormAttrModel>  attrList = new List<Flow_FormAttrModel>();//获取表单关联的字段
            attrList = GetAttrList(flowFormModel);
            List<Flow_StepModel> stepList = stepBLL.GetList(ref pager, formId);

            ViewBag.StepId = stepId;
            ViewBag.AttrList = attrList;
            ViewBag.StepList = stepList;
            return View();
        }
        [HttpPost]
        [SupportFilter(ActionName = "Edit")]
        public JsonResult GetStepRuleList(string stepId)
        {
            List<Flow_StepRuleModel> stepList = stepRuleBLL.GetList(stepId);
            int i =1;
            var json = new
            {
                rows = (from r in stepList
                        select new Flow_StepRuleModel()
                        {
                            Mes="分支"+(i++),
                            Id = r.Id,
                            StepId = r.StepId,
                            AttrId = r.AttrId,
                            AttrName = r.AttrName,
                            Operator = r.Operator,
                            Result = r.Result,
                            NextStep = r.NextStep,
                            NextStepName = r.NextStepName,
                            Action = "<a href='#' title='删除' class='icon-remove' onclick='DeleteEvent(""+r.Id+"")'></a>"

                        }).ToArray()

            };

            return Json(json);
        }


        [HttpPost]
        [SupportFilter(ActionName = "Edit")]
        public JsonResult CreateStepEvent(Flow_StepRuleModel model)
        {
            model.Id = ResultHelper.NewId;
            if (model != null && ModelState.IsValid)
            {

                if (stepRuleBLL.Create(ref errors, model))
                {
                    LogHandler.WriteServiceLog(GetUserId(), "Id" + model.Id + ",StepId" + model.Id, "成功", "创建", "Flow_StepRule");
                    return Json(JsonHandler.CreateMessage(1, Suggestion.InsertSucceed, model.Id));
                }
                else
                {
                    string ErrorCol = errors.Error;
                    LogHandler.WriteServiceLog(GetUserId(), "Id" + model.Id + ",StepId" + model.Id + "," + ErrorCol, "失败", "创建", "Flow_StepRule");
                    return Json(JsonHandler.CreateMessage(0, Suggestion.InsertFail + ErrorCol));
                }
            }
            else
            {
                return Json(JsonHandler.CreateMessage(0, Suggestion.InsertFail));
            }
        }


        [HttpPost]
        [SupportFilter(ActionName = "Edit")]
        public JsonResult DeleteStepRule(string id)
        {
            if (!string.IsNullOrWhiteSpace(id))
            {
                if (stepRuleBLL.Delete(ref errors, id))
                {
                    LogHandler.WriteServiceLog(GetUserId(), "Id:" + id, "成功", "删除", "Flow_StepRule");
                    return Json(JsonHandler.CreateMessage(1, Suggestion.DeleteSucceed));
                }
                else
                {
                    string ErrorCol = errors.Error;
                    LogHandler.WriteServiceLog(GetUserId(), "Id" + id + "," + ErrorCol, "失败", "删除", "Flow_StepRule");
                    return Json(JsonHandler.CreateMessage(0, Suggestion.DeleteFail + ErrorCol));
                }
            }
            else
            {
                return Json(JsonHandler.CreateMessage(0, Suggestion.DeleteFail));
            }


        }
 //获取已经添加的字段
        private List<Flow_FormAttrModel> GetAttrList(Flow_FormModel model)
        {
            List<Flow_FormAttrModel> list = new List<Flow_FormAttrModel>();
            Flow_FormAttrModel attrModel = new Flow_FormAttrModel();
            #region 处理字段
            //获得对象的类型，myClass1
            Type formType = model.GetType();
            //查找名称为"MyProperty1"的属性
            string[] arrStr = { "AttrA", "AttrB", "AttrC", "AttrD", "AttrE", "AttrF", "AttrG", "AttrH", "AttrI", "AttrJ", "AttrK"
                                  , "AttrL", "AttrM", "AttrN", "AttrO", "AttrP", "AttrQ", "AttrR", "AttrS", "AttrT", "AttrU"
                                  , "AttrV", "AttrW", "AttrX", "AttrY", "AttrZ"};
            foreach (string str in arrStr)
            {
                object o = formType.GetProperty(str).GetValue(model, null);
                if (o != null)
                {
                    //查找model类的Class对象的"str"属性的值
                    attrModel = attrBLL.GetById(o.ToString()); 
                    list.Add(attrModel);
                }
            }
            #endregion
            return list;
        }

写了这么多都是为了填充这种主从表关系的数据，目前为止都很容易消化。