如何为现有属性覆盖@AdminPresentation [Broadleaf Commerce] [英] How to override the @AdminPresentation for existing attributes [Broadleaf Commerce]

问题描述

我试图覆盖 ProductImpl 中定义的以下属性的 @AdminPresentation ：

I am trying to override the @AdminPresentation of the following attribute defined in ProductImpl:

@Column(name = "DISPLAY_TEMPLATE")
@AdminPresentation(friendlyName = "ProductImpl_Product_Display_Template",
        group = GroupName.Advanced)
protected String displayTemplate;

当前，默认情况下它显示为文本字段，因为没有提供了fieldType 属性。但是我想显示一个带有预定义值的下拉选择菜单，例如 Product 和 Plan 。到目前为止，这是我尝试过的操作：

Currently, it is displayed as a text field by default as there is no fieldType attribute provided. But I want to display a dropdown select menu with predefined values such as Product and Plan. Here is what I've tried so far:

我创建了一个实现<$ c的类 DisplayTemplateType $ c> BroadleafEnumerationType 并定义了 PLAN 和 PRODUCT 枚举。这是该类的代码：

I've created a class DisplayTemplateType that implements BroadleafEnumerationType and defined PLAN and PRODUCT enums. Here is the code of that class:

public class DisplayTemplateType implements Serializable, BroadleafEnumerationType {

    private static final long serialVersionUID = 7761108654549553693L;

    private static final Map<String, DisplayTemplateType> TYPES = new LinkedHashMap<String, DisplayTemplateType>();

    public static final DisplayTemplateType PLAN = new DisplayTemplateType("PLAN", "PLAN");
    public static final DisplayTemplateType PRODUCT = new DisplayTemplateType("PRODUCT", "PRODUCT");

    public static DisplayTemplateType getInstance(final String type) {
        return TYPES.get(type);
    }

    private String type;
    private String friendlyType;

    public DisplayTemplateType() {
        //do nothing
    }

    public DisplayTemplateType(final String type, final String friendlyType) {
        this.friendlyType = friendlyType;
        setType(type);
    }

    @Override
    public String getType() {
        return type;
    }

    @Override
    public String getFriendlyType() {
        return friendlyType;
    }

    private void setType(final String type) {
        this.type = type;
        if (!TYPES.containsKey(type)) {
            TYPES.put(type, this);
        } else {
            throw new RuntimeException("Cannot add the type: (" + type + "). It already exists as a type via " + getInstance(type).getClass().getName());
        }
    }
    // equals() and hashCode() implementation is removed for readability
}

然后在 applicationContext-admin.xml 文件中，我添加了以下覆盖属性：

Then in applicationContext-admin.xml file, I have added the following override properties:

<mo:override id="blMetadataOverrides">
        <mo:overrideItem ceilingEntity="org.broadleafcommerce.core.catalog.domain.Product">
        <mo:field name="displayTemplate">
                <mo:property name="explicitFieldType" value="BROADLEAF_ENUMERATION"/>
                <mo:property name="broadleafEnumeration" value="com.community.core.domain.DisplayTemplateType"/> 
            </mo:field>
        </mo:overrideItem>
</mo:override>

但它没有任何改变。我在这里遗漏了什么吗？

But it didn't change anything. Am I missing something here?

推荐答案

最后，尝试了很多事情之后，我想出了一种解决方法。不必使用基于XML的方法，我不得不扩展 ProductImpl 类以覆盖其属性的 @AdminPresentation 。但是对于扩展，我需要定义一个 @Entity ，因此，我需要创建一个无用的表来绑定到该实体。我知道这不是完美的方法，但是我找不到更好的解决方案。这是我的代码，以便将来有人可以从中获得帮助：

Finally, after trying many things, I came up with a workaround. Instead of going with the XML based approach, I had to extend the ProductImpl class to override @AdminPresentation of its attributes. But for extending I needed to define an @Entity and as a result, I needed to create a useless table to bind to that entity. I know this is not the perfect approach but I couldn't find any better solution for this. Here is my code, so that someone might get help from it in the future:

@Entity
@Immutable
@AdminPresentationMergeOverrides({
        @AdminPresentationMergeOverride(name = "displayTemplate", mergeEntries = {
                @AdminPresentationMergeEntry(propertyType = PropertyType.AdminPresentation.FIELDTYPE, overrideValue = "BROADLEAF_ENUMERATION"),
                @AdminPresentationMergeEntry(propertyType = PropertyType.AdminPresentation.BROADLEAFENUMERATION, overrideValue = "com.community.core.domain.DisplayTemplateType"),
                @AdminPresentationMergeEntry(propertyType = PropertyType.AdminPresentation.REQUIREDOVERRIDE, overrideValue = "REQUIRED"),
                @AdminPresentationMergeEntry(propertyType = PropertyType.AdminPresentation.DEFAULTVALUE, overrideValue = "PLAN")
        })
})
public class CustomProduct extends ProductImpl {

    private static final long serialVersionUID = -5745207984235258075L;
}

现在是这样显示的：

这篇关于如何为现有属性覆盖@AdminPresentation [Broadleaf Commerce]的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！