【发布时间】：2016-04-25 23:16:14
【问题描述】：
我正在构建一个电子商务应用程序，现在正在研究 ProductAttributes。我想处理尺寸、颜色和数量属性。
示例 T恤有多种颜色和尺寸，数量不同。
Name - Color - Size - Qty
T-shirtA - Black - Small - 5pc
T-shirtA - Blue - Medium - 10pc
T-shirtA - Blue - Large - 4pc
我想处理他上面的场景。
表格
1. Product: Product_Id(pk), Name, Price, Description
2. ProductSizes: ProductSize_Id(pk), SizeName
3. ProductSizeValues: ProductSizeValue_Id(pk), ProductSize_Id(fk), Name
4. ProductColors: ProductColor_Id(pk), Name
5. ProductAttribues: ProductAttribute_Id(pk), ProductSize_Id(fk), ProductColor_Id(fk)
6. ProductAttribueValues: ProductAttributeValue_Id(pk), ProductAttribute_Id(fk), Product_Id(fk), ProductSizeValue_Id(fk), ProductColor_Id(fk), Quantity.
首先我对如何存储颜色和尺寸以及数量感到困惑，然后我安装了 OpenCart 并看到了他们的数据库架构，但我没有上面的表格。
我已将一些值直接插入数据库，一切正常。得到想要的结果。但显然我希望我的用户使用 ViewPage 存储这些详细信息。
我创建了一个 ViewModel
ProductAttributeViewModel.cs
public class ProductAttributesViewModel
{
public Product Product { get; set; }
public ProductAttribute ProductAttribute { get; set; }
public ProductAttributeValue ProductAttributeValue { get; set; }
public int ProductId { get; set; }
public string Name { get; set; }
[AllowHtml]
public string Description { get; set; }
public decimal? Price { get; set; }
public int? Quantity { get; set; }
public string Sizes { get; set; }
public int Stock { get; set; }
public int ProductColorVariantId { get; set; }
public int ProductSizeVariantId { get; set; }
public int ProductSizeVariantValueId { get; set; }
public int ProductAttributeId { get; set; }
public int ProductAttributeValueId { get; set; }
}
Contoller 我必须将数据插入到多个表中。所以他是我的控制器
[HttpPost]
[ValidateAntiForgeryToken]
public ActionResult AddProduct(ProductAttributesViewModel newRecord)
{
IEnumerable<SelectListItem> productsizevariants = db.ProductSizeVariants.Select(c => new SelectListItem
{
Value = c.ProductSizeVariantId.ToString(),
Text = c.Name
});
ViewBag.ProductSizeVariantId = productsizevariants;
IEnumerable<SelectListItem> productsizevariantsvalues = db.ProductSizeVariantValues.Select(c => new SelectListItem
{
Value = c.ProductSizeVariantValueId.ToString(),
Text = c.Name
});
ViewBag.ProductSizeVariantValueId = productsizevariantsvalues;
IEnumerable<SelectListItem> productcolorvariantsid = db.ProductColorVariants.Select(c => new SelectListItem
{
Value = c.ProductColorVariantId.ToString(),
Text = c.Name
});
ViewBag.ProductColorVariantId = productcolorvariantsid;
var product = new Product
{
Name = newRecord.Name,
Description = newRecord.Description,
Price = newRecord.Price,
};
var productattributes = new ProductAttribute
{
ProductSizeVariantId = newRecord.ProductSizeVariantId,
ProductColorVariantId = newRecord.ProductColorVariantId,
ProductId = newRecord.ProductId
};
var productattributevalues = new ProductAttributeValue
{
ProductAttributeId = newRecord.ProductAttributeId,
ProductId = newRecord.ProductId,
ProductSizeVariantId = newRecord.ProductSizeVariantId,
ProductSizeVariantValueId = newRecord.ProductSizeVariantValueId,
ProductColorVariantId = newRecord.ProductColorVariantId,
Quantity = newRecord.Stock
};
db.Products.Add(product);
db.ProductAttributes.Add(productattributes);
db.ProductAttributeValues.Add(productattributevalues);
db.SaveChanges();
return RedirectToAction("Index", "Home");
}
一切都很好。数据存储在具有外键和所有值的所有表中。现在我想添加动态文本字段以添加大小和颜色。
我将颜色和大小存储在 DB 中，并且从控制器中我将这些值传递到下拉列表中并填充它们。
查看
@model FypStore.ViewModels.ProductAttributesViewModel
@using (Html.BeginForm("AddProduct", "Store", FormMethod.Post, new { enctype = "multipart/form-data", @class = "form-horizontal col-md-12", role = "form" }))
{
<div class="form-group">
@Html.LabelFor(m => m.Name, new { @class = "col-md-2 control-label", data_val_required = "required" })
<div class="col-md-10">
@Html.TextBoxFor(m => m.Name, new { @class = "form-control" })
@Html.ValidationMessageFor(m => m.Name)
</div>
</div>
<div class="form-group">
@Html.LabelFor(m => m.Description, new { @class = "col-md-2 control-label" })
<div class="col-md-10">
@Html.TextAreaFor(m => m.Description, new { @class = "form-control" })
</div>
</div>
<div class="form-group">
<div class="row">
@*@Html.LabelFor(m => m.ProductSizeVariantId, new { @class = "col-md-2 control-label" })*@
<div class="col-md-2 control-label">
</div>
<div class="input_fields_wrap">
<button class="add_field_button">Add More Fields</button>
<div class="col-md-2">
@Html.DropDownList("ProductSizeVariantId", null, "Size", new { @class = "control-label" })
</div>
<div class="col-md-2">
@Html.DropDownList("ProductSizeVariantValueId", null, "Select Size", new { @class = "control-label" })
</div>
<div class="col-md-2">
@Html.DropDownList("ProductColorVariantId", null, "Select Color", new { @class = "control-label" })
</div>
<div class="col-md-2">
@Html.TextBoxFor(x => x.Stock, new { @placeholder = "Quantity", @class = "form-control" })
</div>
</div>
</div>
</div>
<div class="form-group">
<div class="col-md-offset-2 col-md-10">
<input type="submit" class="btn btn-default" value="Create Product" />
</div>
</div>
}
这是我想要实现的演示。
$('.multi-field-wrapper').each(function() {
var $wrapper = $('.multi-fields', this);
$(".add-field", $(this)).click(function(e) {
$('.multi-field:first-child', $wrapper).clone(true).appendTo($wrapper).find('input').placeholder('quantity').focus();
});
$('.multi-field .remove-field', $wrapper).click(function() {
if ($('.multi-field', $wrapper).length > 1)
$(this).parent('.multi-field').remove();
});
});<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<form role="form" action="/wohoo" method="POST">
<input type="text" placeholder="Name" name="name"><br />
<input type="text" placeholder="Price" name="price"><br />
<input type="text" placeholder="Description" name="description"><br />
<label>Attributes</label>
<div class="multi-field-wrapper">
<div class="multi-fields">
<div class="multi-field">
<select>
<option>Green</option>
<option>Blue</option>
<option>Black</option>
<option>Purple</option>
<option>White</option>
</select>
<select>
<option>XS</option>
<option>Small</option>
<option>Medium</option>
<option>Large</option>
<option>XL</option>
</select>
<input type="text" placeholder="quantity" name="quantity">
<button type="button" class="remove-field">Remove</button>
</div>
</div>
<button type="button" class="add-field">Add field</button>
</div>
<button type="button">Create Product</button>
</form>【问题讨论】：
标签： c# mysql asp.net asp.net-mvc