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## 主要改进 - 实现 /api/status/model 接口，返回真实PDMS模型状态信息 - 使用MDB.CurrentMDB、Project.CurrentProject等AVEVA API获取真实数据 - 移除硬编码的CurrentSession、PositionInfo、PdmsSpecific等复杂结构 - 简化数据模型，只保留核心的真实数据字段 ## 技术实现 - 通过DbSession获取真实的用户名、会话开始时间和持续时间 - 通过WorldMembers()获取真实的模型元素统计 - 修复DateTime类型的null合并运算符编译错误 - 清理不使用的方法和类定义 ## API返回数据 现在返回的数据主要包含真实的PDMS信息： - ModelLoaded: MDB连接状态检查 - ProjectName: 真实的设计数据库名称 - MdsName: 真实的MDB名称 - UserName: 真实的数据库会话用户 - StartTime: 真实的会话创建时间 - TotalElements: 真实的模型元素数量统计 🤖 Generated with [Claude Code](https://claude.ai/code) Co-Authored-By: Claude <noreply@anthropic.com>
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2.7 KiB
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54 lines
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<title>DbAttribute Class</title>
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<td class="runninghead">AVEVA Database .NET Public Interface</td>
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<h1 class="dtH1">DbAttribute Class</h1>
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<p> The class has two purposes: i) Instances of the class are used to identify and pass around attributes ii) The class can be used to get meta data about an attribute. e.g. type, size, Name, pseudo or not, etc The class is valid for system attributes and UDAS. Object instances are created for all system atttributes. These instances are in DbAttributeInstance class All methods that pass in an attribute should pass a DbAttribute object rather than a string that represents the attribute </p>
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<p>For a list of all members of this type, see <a href="Aveva.Pdms.Database.DbAttributeMembers.html">DbAttribute Members</a>.</p>
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<p>
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<a href="ms-help://MS.NETFrameworkSDKv1.1/cpref/html/frlrfSystemObjectClassTopic.htm">System.Object</a>
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<br /> <b>Aveva.Pdms.Database.DbAttribute</b></p>
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<div class="syntax">
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<div>public abstract class DbAttribute<b> : <a href="ms-help://MS.NETFrameworkSDKv1.1/cpref/html/frlrfSystemIComparableClassTopic.htm">IComparable</a>, <a href="Aveva.Pdms.Utilities.Messaging.IMessage.html">IMessage</a></b></div>
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<H4 class="dtH4">Thread Safety</H4>
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<P>Public static (<b>Shared</b> in Visual Basic) members of this type are
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safe for multithreaded operations. Instance members are <b>not</b> guaranteed to be
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thread-safe.</P>
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<h4 class="dtH4">Requirements</h4>
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<b>Namespace: </b>
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<a href="Aveva.Pdms.Database.html">Aveva.Pdms.Database</a>
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<b>Assembly: </b>Aveva.Pdms.Database (in Aveva.Pdms.Database.dll)
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<h4 class="dtH4">See Also</h4>
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<p>
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<a href="Aveva.Pdms.Database.DbAttributeMembers.html">DbAttribute Members</a> | <a href="Aveva.Pdms.Database.html">Aveva.Pdms.Database Namespace</a></p>
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<div id="footer">©AVEVA Solutions Ltd 2007</div>
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