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BIRT, MongoDB and variable which sometimes does not exist

storoge

I use BIRT Designer Version 4.5.0.v201506092134 Build and MongoDB 3.2. 
I use FindQuery for my query expression: 

<pre class="_prettyXprint _lang-js">
{
$and: [ {"creatorDeptId": {$exists: true}},
{"claimCreate" : {$exists: true}},
{"customClaimNumber" : {$exists: true}},
{ "currStatus.statusCode" : {$exists: true}},
{ "service.name" : {$exists: true}},
{"daysToDeadline" : {$exists: true}},
{"service.srguServicePassportId" : {$exists: true}},
{"service.srguDepartmentName" : {$exists: true}},
{"oktmo": { $regex: "^46" }},
{"creatorDeptId": { $regex: "mfc-" }},
{"claimCreate" : { $lte: { $date: "2016-10-07T23:59:59Z" }, $gte: { $date: "2016-10-01T00:00:00Z" } }}]

}
</pre>
In MongoDB the amount of fields in the collection's record are not fixed. 
Some of the fields for a particular record may not exist. 
I need to display in the report exactly such a field. 
Ideally, if the field exists, it is displayed, if does not exist, it is displayed whitespace. 
When you try to display this field directly BIRT reports an error.
<blockquote class="ipsBlockquote">
 
org.eclipse.birt.report.engine.api.EngineException: Column binding "Column Binding_1" has referred to a data set column "claimOperationInfo.issueOperatorFio" which does not exist. 
 at org.eclipse.birt.report.engine.executor.ExecutionContext.addException(ExecutionContext.java:1245) 
 at org.eclipse.birt.report.engine.executor.ExecutionContext.addException(ExecutionContext.java:1224) 
 at org.eclipse.birt.report.engine.executor.QueryItemExecutor.executeQuery(QueryItemExecutor.java:96) 
 at org.eclipse.birt.report.engine.executor.TableItemExecutor.execute(TableItemExecutor.java:62) 
 at org.eclipse.birt.report.engine.internal.executor.dup.SuppressDuplicateItemExecutor.execute(SuppressDuplicateItemExecutor.java:43) 
 at org.eclipse.birt.report.engine.internal.executor.wrap.WrappedReportItemExecutor.execute(WrappedReportItemExecutor.java:46) 
 at org.eclipse.birt.report.engine.internal.executor.l18n.LocalizedReportItemExecutor.execute(LocalizedReportItemExecutor.java:34) 
 at org.eclipse.birt.report.engine.layout.html.HTMLBlockStackingLM.layoutNodes(HTMLBlockStackingLM.java:65) 
 at org.eclipse.birt.report.engine.layout.html.HTMLPageLM.layout(HTMLPageLM.java:92) 
 at org.eclipse.birt.report.engine.layout.html.HTMLReportLayoutEngine.layout(HTMLReportLayoutEngine.java:100) 
 at org.eclipse.birt.report.engine.api.impl.RunAndRenderTask.doRun(RunAndRenderTask.java:181) 
 at org.eclipse.birt.report.engine.api.impl.RunAndRenderTask.run(RunAndRenderTask.java:77) 
 at org.eclipse.birt.report.service.ReportEngineService.runAndRenderReport(ReportEngineService.java:937) 
 at org.eclipse.birt.report.service.BirtViewerReportService.runAndRenderReport(BirtViewerReportService.java:973) 
 at org.eclipse.birt.report.service.actionhandler.BirtRunAndRenderActionHandler.__execute(BirtRunAndRenderActionHandler.java:76) 
 at org.eclipse.birt.report.service.actionhandler.AbstractBaseActionHandler.execute(AbstractBaseActionHandler.java:90) 
 at org.eclipse.birt.report.presentation.aggregation.layout.EngineFragment.doService(EngineFragment.java:318) 
 at org.eclipse.birt.report.presentation.aggregation.AbstractBaseFragment.service(AbstractBaseFragment.java:76) 
 at org.eclipse.birt.report.servlet.BirtEngineServlet.__doGet(BirtEngineServlet.java:116) 
 at org.eclipse.birt.report.servlet.BaseReportEngineServlet.doGet(BaseReportEngineServlet.java:185) 
 at org.eclipse.birt.report.servlet.BaseReportEngineServlet.doPost(BaseReportEngineServlet.java:224) 
 at javax.servlet.http.HttpServlet.service(HttpServlet.java:707) 
 at org.apache.axis.transport.http.AxisServletBase.service(AxisServletBase.java:327) 
 at javax.servlet.http.HttpServlet.service(HttpServlet.java:790) 
 at org.eclipse.birt.report.servlet.BaseReportEngineServlet.service(BaseReportEngineServlet.java:116) 
 at org.eclipse.equinox.http.registry.internal.ServletManager$ServletWrapper.service(ServletManager.java:180) 
 at org.eclipse.equinox.http.servlet.internal.HttpServiceRuntimeImpl$LegacyServlet.service(HttpServiceRuntimeImpl.java:1232) 
 at org.eclipse.equinox.http.servlet.internal.registration.EndpointRegistration.service(EndpointRegistration.java:153) 
 at org.eclipse.equinox.http.servlet.internal.servlet.ResponseStateHandler.processRequest(ResponseStateHandler.java:63) 
 at org.eclipse.equinox.http.servlet.internal.context.DispatchTargets.doDispatch(DispatchTargets.java:98) 
 at org.eclipse.equinox.http.servlet.internal.HttpServiceRuntimeImpl.doDispatch(HttpServiceRuntimeImpl.java:372) 
 at org.eclipse.equinox.http.servlet.internal.servlet.ProxyServlet.service(ProxyServlet.java:70) 
 at javax.servlet.http.HttpServlet.service(HttpServlet.java:790) 
 at org.eclipse.equinox.http.jetty.internal.HttpServerManager$InternalHttpServiceServlet.service(HttpServerManager.java:363) 
 at org.eclipse.jetty.servlet.ServletHolder.handle(ServletHolder.java:808) 
 at org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:587) 
 at org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:221) 
 at org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1127) 
 at org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:515) 
 at org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:185) 
 at org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1061) 
 at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:141) 
 at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:97) 
 at org.eclipse.jetty.server.Server.handle(Server.java:499) 
 at org.eclipse.jetty.server.HttpChannel.handle(HttpChannel.java:310) 
 at org.eclipse.jetty.server.HttpConnection.onFillable(HttpConnection.java:257) 
 at org.eclipse.jetty.io.AbstractConnection$2.run(AbstractConnection.java:540) 
 at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:635) 
 at org.eclipse.jetty.util.thread.QueuedThreadPool$3.run(QueuedThreadPool.java:555) 
 at java.lang.Thread.run(Unknown Source) 
Caused by: org.eclipse.birt.data.engine.core.DataException: Column binding "Column Binding_1" has referred to a data set column "claimOperationInfo.issueOperatorFio" which does not exist. 
 at org.eclipse.birt.data.engine.impl.ResultIterator.validateManualBindingExpressions(ResultIterator.java:380) 
 at org.eclipse.birt.data.engine.impl.ResultIterator.<init>(ResultIterator.java:148) 
 at org.eclipse.birt.data.engine.impl.QueryResults.getResultIterator(QueryResults.java:222) 
 at org.eclipse.birt.report.engine.data.dte.QueryResultSet.<init>(QueryResultSet.java:98) 
 at org.eclipse.birt.report.engine.data.dte.DteDataEngine.doExecuteQuery(DteDataEngine.java:168) 
 at org.eclipse.birt.report.engine.data.dte.AbstractDataEngine.execute(AbstractDataEngine.java:285) 
 at org.eclipse.birt.report.engine.executor.ExecutionContext.executeQuery(ExecutionContext.java:1947) 
 at org.eclipse.birt.report.engine.executor.QueryItemExecutor.executeQuery(QueryItemExecutor.java:80) 
 ... 47 more
</blockquote>

I have tried to use a different design for cut-off non-existent in "computed columns" or directly in expression builder. 
For example,
<pre class="_prettyXprint">
if (typeof(row["claimOperationInfo.issueOperatorFio"])!=='undefined') {row["claimOperationInfo.issueOperatorFio"]}
else {""}</pre>

or
<pre class="_prettyXprint">
new String(dataSetRow["claimOperationInfo.issueOperatorFio"]) + " "</pre>
All attempts were unsuccessful.
<blockquote class="ipsBlockquote">org.eclipse.birt.report.engine.api.EngineException: Fail to compute value for computed column "Oper". A BIRT exception occurred. See next exception for more information. There are errors evaluating script "if ( typeof(row["claimOperationInfo.issueOperatorFio"])!=='undefined') {row["claimOperationInfo.issueOperatorFio"]} else {""}": Invalid field name: claimOperationInfo.issueOperatorFio.
 
</blockquote>
 
 
How can I output in the BIRT report in the form of table fields that are not present in all records of a MongoDB collection?

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Comments

Paul Arkell

Hi, I'm dealing with the same types of issues..... report fails with 'Column binding "****" has referred to a data set column "****" which does not exist' errors within the report when there is no data returned in the dataset. 
 
Is there a solution to this problem?

Diljeet

Hi, I am also getting similar kind of error when I try to deploy my report on apache tomcat server.
Exception : org.eclipse.birt.report.engine.api.EngineException: Column binding "newstartsate" has referred to a data set column "newstartsate" which does not exist.
I have not used newstartsate column anywhere in my report. 
Below is the full stacktrace:
 
<div>

<div>

<div style="font-size:8pt;">
<div>org.eclipse.birt.report.engine.api.EngineException: Column binding "newstartsate" has referred to a data set column "newstartsate" which does not exist. 
 at org.eclipse.birt.report.engine.executor.ExecutionContext.addException(ExecutionContext.java:1239) 
 at org.eclipse.birt.report.engine.executor.ExecutionContext.addException(ExecutionContext.java:1218) 
 at org.eclipse.birt.report.engine.executor.QueryItemExecutor.executeQuery(QueryItemExecutor.java:96) 
 at org.eclipse.birt.report.engine.executor.TableItemExecutor.execute(TableItemExecutor.java:62) 
 at org.eclipse.birt.report.engine.internal.executor.wrap.WrappedReportItemExecutor.execute(WrappedReportItemExecutor.java:46) 
 at org.eclipse.birt.report.engine.internal.executor.emitter.ReportItemEmitterExecutor.execute(ReportItemEmitterExecutor.java:46) 
 at org.eclipse.birt.report.engine.internal.executor.dup.SuppressDuplicateItemExecutor.execute(SuppressDuplicateItemExecutor.java:43) 
 at org.eclipse.birt.report.engine.layout.html.HTMLBlockStackingLM.layoutNodes(HTMLBlockStackingLM.java:65) 
 at org.eclipse.birt.report.engine.layout.html.HTMLPageLM.layout(HTMLPageLM.java:92) 
 at org.eclipse.birt.report.engine.layout.html.HTMLReportLayoutEngine.layout(HTMLReportLayoutEngine.java:100) 
 at org.eclipse.birt.report.engine.presentation.ReportDocumentBuilder.build(ReportDocumentBuilder.java:258) 
 at org.eclipse.birt.report.engine.api.impl.RunTask.doRun(RunTask.java:269) 
 at org.eclipse.birt.report.engine.api.impl.RunTask.run(RunTask.java:86) 
 at org.eclipse.birt.report.service.ReportEngineService.runReport(ReportEngineService.java:1325) 
 at org.eclipse.birt.report.service.BirtViewerReportService.runReport(BirtViewerReportService.java:158) 
 at org.eclipse.birt.report.service.actionhandler.BirtRunReportActionHandler.__execute(BirtRunReportActionHandler.java:81) 
 at org.eclipse.birt.report.service.actionhandler.BirtChangeParameterActionHandler.runReport(BirtChangeParameterActionHandler.java:58) 
 at org.eclipse.birt.report.service.actionhandler.AbstractChangeParameterActionHandler.__execute(AbstractChangeParameterActionHandler.java:53) 
 at org.eclipse.birt.report.service.actionhandler.AbstractBaseActionHandler.execute(AbstractBaseActionHandler.java:90) 
 at org.eclipse.birt.report.soapengine.processor.AbstractBaseDocumentProcessor.__executeAction(AbstractBaseDocumentProcessor.java:47) 
 at org.eclipse.birt.report.soapengine.processor.AbstractBaseComponentProcessor.executeAction(AbstractBaseComponentProcessor.java:143) 
 at org.eclipse.birt.report.soapengine.processor.BirtDocumentProcessor.handleChangeParameter(BirtDocumentProcessor.java:100) 
 at sun.reflect.GeneratedMethodAccessor53.invoke(Unknown Source) 
 at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) 
 at java.lang.reflect.Method.invoke(Method.java:498) 
 at org.eclipse.birt.report.soapengine.processor.AbstractBaseComponentProcessor.process(AbstractBaseComponentProcessor.java:112) 
 at org.eclipse.birt.report.soapengine.endpoint.BirtSoapBindingImpl.getUpdatedObjects(BirtSoapBindingImpl.java:66) 
 at sun.reflect.GeneratedMethodAccessor52.invoke(Unknown Source) 
 at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) 
 at java.lang.reflect.Method.invoke(Method.java:498) 
 at org.apache.axis.providers.java.RPCProvider.invokeMethod(RPCProvider.java:397) 
 at org.apache.axis.providers.java.RPCProvider.processMessage(RPCProvider.java:186) 
 at org.apache.axis.providers.java.JavaProvider.invoke(JavaProvider.java:323) 
 at org.apache.axis.strategies.InvocationStrategy.visit(InvocationStrategy.java:32) 
 at org.apache.axis.SimpleChain.doVisiting(SimpleChain.java:118) 
 at org.apache.axis.SimpleChain.invoke(SimpleChain.java:83) 
 at org.apache.axis.handlers.soap.SOAPService.invoke(SOAPService.java:454) 
 at org.apache.axis.server.AxisServer.invoke(AxisServer.java:281) 
 at org.apache.axis.transport.http.AxisServlet.doPost(AxisServlet.java:699) 
 at org.eclipse.birt.report.servlet.BirtSoapMessageDispatcherServlet.doPost(BirtSoapMessageDispatcherServlet.java:265) 
 at javax.servlet.http.HttpServlet.service(HttpServlet.java:647) 
 at org.apache.axis.transport.http.AxisServletBase.service(AxisServletBase.java:327) 
 at javax.servlet.http.HttpServlet.service(HttpServlet.java:728) 
 at org.eclipse.birt.report.servlet.BirtSoapMessageDispatcherServlet.service(BirtSoapMessageDispatcherServlet.java:122) 
 at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:305) 
 at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210) 
 at org.eclipse.birt.report.filter.ViewerFilter.doFilter(ViewerFilter.java:68) 
 at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243) 
 at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210) 
 at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:51) 
 at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243) 
 at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210) 
 at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:222) 
 at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:123) 
 at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:502) 
 at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:171) 
 at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:100) 
 at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:953) 
 at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118) 
 at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:408) 
 at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1041) 
 at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:603) 
 at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:312) 
 at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) 
 at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) 
 at java.lang.Thread.run(Thread.java:745) 
Caused by: org.eclipse.birt.data.engine.core.DataException: Column binding "newstartsate" has referred to a data set column "newstartsate" which does not exist. 
 at org.eclipse.birt.data.engine.impl.ResultIterator.validateManualBindingExpressions(ResultIterator.java:380) 
 at org.eclipse.birt.data.engine.impl.ResultIterator.(ResultIterator.java:148) 
 at org.eclipse.birt.data.engine.impl.QueryResults.getResultIterator(QueryResults.java:215) 
 at org.eclipse.birt.report.engine.data.dte.QueryResultSet.(QueryResultSet.java:98) 
 at org.eclipse.birt.report.engine.data.dte.DteDataEngine.doExecuteQuery(DteDataEngine.java:168) 
 at org.eclipse.birt.report.engine.data.dte.DataGenerationEngine.doExecuteQuery(DataGenerationEngine.java:83) 
 at org.eclipse.birt.report.engine.data.dte.AbstractDataEngine.execute(AbstractDataEngine.java:267) 
 at org.eclipse.birt.report.engine.executor.ExecutionContext.executeQuery(ExecutionContext.java:1941) 
 at org.eclipse.birt.report.engine.executor.QueryItemExecutor.executeQuery(QueryItemExecutor.java:80) 
... 63 more</div>
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paularkell

Hopefully this will be of use...
For fields which may or may not exist, I've found that I can force a value, null or empty string into a field using $ifNull in $project. eg.
 
{$project:{
 "newFieldName":{$ifNull:["$fieldName",""]}
}
 
this results in an empty string in if the value is null or the fieldName if the value is not null.