我正在使用Doctrine Annotations库(不是整个Doctrine,仅是注释),并想制作一个自定义注释类。
composer.json:
public class OrderItem
{
public string ItemID { get; set; }
public string ItemName { get; set; }
public string Quantity { get; set; }
public string Discount { get; set; }
public int Price { get; set; }
}
private OrderItem GetOrder(string itemID, string qty, string discount)
{
OrderItem orderItem = null;
{
DataView dv = BS.GetDataFromDb("where Id = " + itemID);
if(dv != null && dv.Count > 0)
{
orderItem = new OrderItem();
orderItem.ItemID = itemID;
orderItem.ItemName = dv[0]["Name"].ToString();
orderItem.Price = int.Parse(dv[0]["Price"].ToString());
orderItem.Quantity = qty;
orderItem.Discount = discount;
}
if (dv == null || dv.Count == 0)
MessageBox.Show("Wrong item no: " + itemID, "Unavailable Item No", MessageBoxButton.OK, MessageBoxImage.Error);
}
return orderItem;
}
private void btnAddOrder_Click(object sender, RoutedEventArgs e)
{
try {
string discount = (txtDiscount.Text.Trim() == string.Empty ? "0" : txtDiscount.Text.Trim());
int qty = int.Parse(txtQty.Text.Trim() == string.Empty ? "0" : txtQty.Text.Trim());
int itemNo = int.Parse(txtItemNo.Text.Trim() == string.Empty ? "0" : txtItemNo.Text.Trim());
if (qty <=0) {
MessageBox.Show("Please insert valid quantity", "Exception", MessageBoxButton.OK, MessageBoxImage.Error);
return;
}
if (itemNo <= 0) {
MessageBox.Show("Please insert valid item number", "Exception", MessageBoxButton.OK, MessageBoxImage.Error);
return;
}
OrderItem o = GetOrder(txtItemNo.Text, txtQty.Text, discount);
if(o != null)
{
grdOrderList.Items.Add(new OrderItem { ItemName = o.ItemName, Price = o.Price, Quantity = o.Quantity, Discount = o.Discount });
if (orderItems == null)
orderItems = new List<OrderItem>();
orderItems.Add(o);
txtItemNo.Text = txtQty.Text = txtDiscount.Text = string.Empty;
}
}
catch (Exception ex) {
MessageBox.Show("Error 69: "+ex.Message, "Exception", MessageBoxButton.OK, MessageBoxImage.Error);
}
}
index.php:
<StackPanel Name="YourOrder">
<StackPanel>
<TextBox Name="txtItemNo" />
<TextBox Name="txtQty" />
<TextBox Name="txtDiscount" />
<Button Name="btnAddOrder" Click="btnAddOrder_Click" Content="Add to order" ToolTip="Adds item to order" />
</StackPanel>
<DataGrid Name="grdOrderList">
<DataGrid.Columns>
<DataGridTextColumn Header="Item Name" Binding="{Binding ItemName}" MinWidth="100" IsReadOnly="True" />
<DataGridTextColumn x:Name="hdrPrice" Header="Price" Binding="{Binding Price}" MinWidth="20" IsReadOnly="True" CellStyle="{StaticResource DgcRight}" />
<DataGridTextColumn x:Name="hdrQty" Header="Qty" IsReadOnly="False" MinWidth="20" Binding="{Binding Quantity}" />
<DataGridTextColumn x:Name="hdrDiscount" Header="Discount" Binding="{Binding Discount}" MinWidth="50" CellStyle="{StaticResource DgcRight}" />
</DataGrid.Columns>
</DataGrid>
</StackPanel>
entities / MyClass.php
{
"require": {
"doctrine/annotations": "^1.6"
},
"autoload": {
"psr-4": {
"annotations\\": "annotations",
"entities\\": "entities"
}
}
}
annotations / TestAnnotation.php
<?php
require 'vendor/autoload.php';
use Doctrine\Common\Annotations\AnnotationReader;
$annotationReader = new AnnotationReader();
$reflectionClass = new ReflectionClass(entities\MyClass::class);
$classAnnotations = $annotationReader->getClassAnnotations($reflectionClass);
var_dump($classAnnotations);
它给我以下错误:
<?php
namespace entities;
use annotations\TestAnnotation;
/**
* @TestAnnotation("123")
*/
class MyClass
{
}
我在Internet上找到的唯一解决方案是使用AnnotationRegistry :: registerLoader或类似的东西,但已弃用,因此我想以另一种方式解决问题。
答案 0 :(得分:2)
一种解决注册加载程序的方法是在应用程序引导期间某个地方显式require_once
带有自定义批注的所有文件(这种方法在MongoDB ODM中已使用,但已被删除)。
在下一个主要版本中,annotations
将依赖自动加载,因此设置不需要任何代码。要使用面向未来的代码,您可以使用:
use Doctrine\Common\Annotations\AnnotationRegistry;
if (class_exists(AnnotationRegistry::class)) {
AnnotationRegistry::registerLoader('class_exists');
}
您可以显式地传递Composer的自动加载器,但是class_exists
可以正常工作,因为Composer的自动加载器已在使用中。
答案 1 :(得分:0)
我发布了一个类似的问题并自己回答了它,因为显然答案比我想象的要模糊得多,最终花了一整天的时间来追查,尽管很容易解决:
composer require “yogarine/doctrine-annotation-autoload”
composer dump-autoload
有关详细信息,请参阅 https://stackoverflow.com/a/59966965/4538469。