Question

我正在尝试通过jaysvcutil从现有的OData服务生成模型，并且正在获取：

[...]\node_modules\jaydata-odatajs\lib\odata\odatautils.js:385
            throw err;
            ^

TypeError: Cannot read property 'schemas' of undefined
    at Metadata.processMetadata ([...]\node_modules\jaydata-dynamic-metadata\lib\metadata.js:353:35)
    at requestData ([...]\node_modules\jaydata-dynamic-metadata\lib\metadataHandler.js:46:42)
    at [...]\node_modules\jaydata-odatajs\lib\odata\odatautils.js:382:13
    at IncomingMessage.<anonymous> ([...]\node_modules\jaydata-odatajs\lib\odata\net.js:179:21)
    at emitNone (events.js:72:20)
    at IncomingMessage.emit (events.js:166:7)
    at endReadableNT (_stream_readable.js:921:12)
    at nextTickCallbackWith2Args (node.js:442:9)
    at process._tickCallback (node.js:356:17)

我试图将域模型压缩成非常简单的东西，所以我当前的$元数据看起来像这样：

<edmx:Edmx xmlns:edmx="http://schemas.microsoft.com/ado/2007/06/edmx" Version="1.0">
    <edmx:DataServices xmlns:m="http://schemas.microsoft.com/ado/2007/08/dataservices/metadata" m:DataServiceVersion="1.0">
        <Schema xmlns:d="http://schemas.microsoft.com/ado/2007/08/dataservices" xmlns:m="http://schemas.microsoft.com/ado/2007/08/dataservices/metadata" xmlns="http://schemas.microsoft.com/ado/2007/05/edm" Namespace="data">
            <EntityType Name="Product">
                <Key>
                    <PropertyRef Name="ProductId"/>
                </Key>
                <Property Name="ProductId" Type="Edm.Int64" Nullable="false"/>
                <Property Name="ProductNo" Type="Edm.String" Nullable="true"/>
                <Property Name="LifeTime" Type="Edm.Int64" Nullable="false"/>
                <Property Name="Capacity" Type="Edm.Int64" Nullable="false"/>
                <Property Name="PackingSize" Type="Edm.Int64" Nullable="false"/>
                <Property Name="CreationTime" Type="Edm.DateTime" Nullable="false"/>
                <Property Name="ModificationTime" Type="Edm.DateTime" Nullable="false"/>
            </EntityType>
        </Schema>
        <Schema xmlns:d="http://schemas.microsoft.com/ado/2007/08/dataservices" xmlns:m="http://schemas.microsoft.com/ado/2007/08/dataservices/metadata" xmlns="http://schemas.microsoft.com/ado/2007/05/edm" Namespace="Namespace">
            <EntityContainer Name="DomainData" m:IsDefaultEntityContainer="true">
                <EntitySet Name="Product" EntityType="data.Product"/>
            </EntityContainer>
        </Schema>
    </edmx:DataServices>
</edmx:Edmx>

这是使用OData V1的现有基于WCF DataService的OData提供程序，我无法更改 - 所以请不要建议将提供程序更新为V4。

任何帮助都将不胜感激。

Answer 1

根据JayData团队的反馈：

JayData supports OData v4, as there have been multiple breaking changes in both OData and DataJS since v1.

以及

JayData 1.3.7 supports v2 and v3, but it does not support TypeScript and Angular 2.

因此，我会考虑替代方案，大概是breezejs。

jaysvcutil与TypeError失败：无法读取属性＆＃39; schemas＆＃39;未定义的

1 个答案: