How to create a view for all Service Requests that are not approved by reviewer

Question

Hallo,
I want to create a view in the Service Requests library that shows all SRs that are not approved. How to configure condition that says: if a SR has related Review Activity which is In Progress, show that SRs?
I couldn't find this when creating the view. Thank you.

Answer 1

So here's the first problem with that: Which review activity? a SR can contain multiple RAs, so how do we decide if an arbitrary SR is approved or not? 
As to the specific language you use (Any child RA is In Progress) you might want to look at the criteria from the default Change approval view, which does something similar: 
<QueryCriteria Adapter="omsdk://Adapters/Criteria" xmlns="http://tempuri.org/Criteria.xsd">
<Criteria>
<FreeformCriteria>
<Freeform>
<Criteria xmlns="http://Microsoft.EnterpriseManagement.Core.Criteria/">
<Expression>
<And>
<Expression>
<SimpleExpression>
<ValueExpressionLeft>
<Property>$Context/Path[Relationship='CoreActivity!System.WorkItemContainsActivity' TypeConstraint='CoreActivity!System.WorkItem.Activity.ReviewActivity']/Property[Type='CoreActivity!System.WorkItem.Activity']/Status$</Property>
</ValueExpressionLeft>
<Operator>Equal</Operator>
<ValueExpressionRight>
<Value>$MPElement[Name="CoreActivity!ActivityStatusEnum.Active"]$</Value>
</ValueExpressionRight>
</SimpleExpression>
</Expression>
<Expression>
<SimpleExpression>
<ValueExpressionLeft>
<Property>$Context/Property[Type='CoreChange!System.WorkItem.ChangeRequest']/Status$</Property>
</ValueExpressionLeft>
<Operator>Equal</Operator>
<ValueExpressionRight>
<Value>$MPElement[Name="CoreChange!ChangeStatusEnum.InProgress"]$</Value>
</ValueExpressionRight>
</SimpleExpression>
</Expression>
</And>
</Expression>
</Criteria>
</Freeform>
</FreeformCriteria>
</Criteria>
</QueryCriteria>
This is a simple AND criteria with two componets. one looking for a Review Activity (TypeConstraint='CoreActivity!System.WorkItem.Activity.ReviewActivity') which is related to the targetting CR by Contains Activity ($Context/Path[Relationship='CoreActivity!System.WorkItemContainsActivity';
Context in this... context means the CR targeted by the view) where it's status (/Property[Type='CoreActivity!System.WorkItem.Activity']/Status$) is In Progress ($MPElement[Name="CoreActivity!ActivityStatusEnum.Active"]$). The other is filtering
for the target change request's status ( $Context/Property[Type='CoreChange!System.WorkItem.ChangeRequest']/Status$) is In Progress ($MPElement[Name="CoreChange!ChangeStatusEnum.InProgress"]$). 
You could convert the second criteria to point to SRs and SR status values, and then use the similar text for the first criteria. i'd recommend
Anton's Advanced View Editor (or
the free version) to do the criteria adjustment.