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我正在創建一個系統，用戶能夠創建新任務來完成，每個任務都有多個步驟。這一切都是通過一個輸入表單完成的，頂部有輸入任務詳細信息（名稱，說明等）的部分，以及下面輸入每個步驟的名稱和說明的部分。可以使用按鈕添加步驟，該按鈕在點擊時通過ajax創建一組新的控件，從而允許用戶根據需要製作多個步驟。MySQL查詢結果最終影響了錯誤的表
當模型被傳回（它們存儲在一個列表中）時，控制器正確地拾取輸入，但是在我的代碼的某處，我遇到了問題，因爲不是在步驟表中創建一個新步驟我的數據庫，創建一個重複的任務。所以我最終得到（1 +步數）創建的任務並且沒有步驟。
我希望對人們有意義。我正在使用MySQL和我寫的處理存儲過程的自定義MySQL分類。我對c＃，.NET框架和MVC模型非常陌生，所以我可能構建我的代碼都是錯誤的，並且可能會以艱難的方式做事，但是在這裏。
這裏是我的代碼：使用
public class StoredProcService
{
private MySqlConnection Connect;
private MySqlCommand CMD;
public List<Object> Results { get; private set; }
public StoredProcService(string name, params MySqlParameter[] args)
{
QuerySetup(name);
foreach (var item in args)
{
AddParam(item);
}
DoQuery();
}
public StoredProcService(string name)
{
QuerySetup(name);
}
//used by all constructors
private void QuerySetup(string name)
{
Connect = new MySqlConnection(ConfigurationManager.ConnectionStrings[<my actual connetion string is here>].ConnectionString);
CMD = new MySqlCommand(name, Connect);
CMD.CommandType = CommandType.StoredProcedure;
}
public void AddParam(MySqlParameter p,object pval)
{
CMD.Parameters.Add(p).Value = pval;
}
public void AddParam(MySqlParameter p)
{
CMD.Parameters.Add(p);
}
public void DoQuery()
{
Results = new List<Object>();
MySqlDataReader myReader;
Connect.Open();
myReader = CMD.ExecuteReader();
int count = 0;
while (myReader.Read())
{
Results.Add(myReader.GetValue(count));
count++;
}
myReader.Close();
Connect.Close();
}
}
型號：
控制器：
[HttpPost]
public ActionResult Index(TaskCreateModel i)
{
if (!ModelState.IsValid)
{
ModelState.AddModelError("", "Please fill the required fields. All tasks require at least 1 step.");
return View(i);
}
//write task to the database
var proc = new StoredProcService("create_task");
proc.AddParam(new MySqlParameter("Name", MySqlDbType.VarChar),i.Name);
proc.AddParam(new MySqlParameter("Description", MySqlDbType.VarChar),i.Description);
proc.AddParam(new MySqlParameter("Value", MySqlDbType.Float),i.Value);
proc.DoQuery();
foreach (var item in i.Steps)
{
//add steps
var proc_steps = new StoredProcService("create_task_step");
proc_steps.AddParam(new MySqlParameter("Name", MySqlDbType.VarChar), item.Name);
proc_steps.AddParam(new MySqlParameter("Description", MySqlDbType.VarChar), item.Description);
proc_steps.AddParam(new MySqlParameter("taskID", MySqlDbType.Int32), proc.Results.ElementAt(0));
proc.DoQuery();
}
return View();
}
存儲過程服務
public class TaskCreateModel
{
[Required]
[Display(Name = "Task Name")]
public string Name { get; set; }
[Display(Name = "Task Description")]
public string Description { get; set; }
[Required]
[Display(Name = "Task Value")]
[DisplayFormat(DataFormatString = "${0:F2}")]
public float Value { get; set; }
[Required]
public List<StepCreateModel> Steps { get; set; }
}
public class StepCreateModel
{
[Required]
[Display(Name = "Step Name")]
public string Name { get; set; }
[Required]
[Display(Name = "Description")]
public string Description { get; set; }
}
瀏覽：
@model ExampleProject.Models.TaskCreateModel
@{
ViewBag.Title = "Create Task";
}
<h2>@ViewBag.Title</h2>
@using (Html.BeginForm("index", "CreateTask"))
{
@Html.ValidationSummary(true)
<fieldset>
<legend>
Please enter task details below:
</legend>
@Html.Partial("_CreateTaskPartial")
<input type="submit" value="Create Task" />
</fieldset>
<fieldset>
<legend>
Steps
</legend>
<div id="editorRows">
</div>
@Ajax.ActionLink("Add Step","BlankEditorRow", new AjaxOptions{ InsertionMode= System.Web.Mvc.Ajax.InsertionMode.InsertAfter,
HttpMethod="Get", UpdateTargetId="editorRows"})
@Html.EditorFor(x => x.Steps)
</fieldset>
}
這是（我還沒有張貼一個由AJAX調用，因爲我的AJAX正常工作）呼籲在前面視圖的局部視圖
@model ExampleProject.Models.TaskCreateModel
<ul>
<li>
@Html.LabelFor(m => m.Name)
@Html.TextBoxFor(m => m.Name)
@Html.ValidationMessageFor(m => m.Name)
</li>
<li>
@Html.LabelFor(m => m.Description)
@Html.TextBoxFor(m => m.Description)
@Html.ValidationMessageFor(m => m.Description)
</li>
<li>
@Html.LabelFor(m => m.Value)
@Html.TextBoxFor(m => m.Value)
@Html.ValidationMessageFor(m => m.Value)
</li>
</ul>
存儲過程：
DELIMITER $$
CREATE DEFINER=`<me>`@`localhost` PROCEDURE `create_task`(in name VARCHAR(128), in description VARCHAR(255), in value FLOAT)
BEGIN
INSERT INTO tasks (Name,Description,Value)
VALUES (name,description,value);
SELECT LAST_INSERT_ID() as TaskID;
END
CREATE DEFINER=`<me>`@`localhost` PROCEDURE `create_task_step`(in Name varchar(128), in Description VARCHAR(255), in TaskID INT)
BEGIN
INSERT INTO steps (name,description,taskID)
VALUES (Name, Description, TaskID);
SELECT LAST_INSERT_ID() as StepID;
END