| Key: |
NH-1393
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| Type: |
New Feature
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| Status: |
Closed
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| Resolution: |
Fixed
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| Priority: |
Minor
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| Assignee: |
Unassigned
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| Reporter: |
Tuna Toksoz
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| Votes: |
0
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| Watchers: |
0
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If you were logged in you would be able to see more operations.
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NHibernate
Created: 19/Jul/08 06:19 AM
Updated: 17/Sep/08 08:37 PM
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| Component/s: |
Core
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| Affects Version/s: |
2.0.0.Beta2
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| Fix Version/s: |
2.1.0.Alpha1
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In order to provide better use of projections, we need to provide Aggregate Projections on Projections.
An example is select max(UnitPrice*Quantity) from Table t
It is trivial to do so.
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Description
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In order to provide better use of projections, we need to provide Aggregate Projections on Projections.
An example is select max(UnitPrice*Quantity) from Table t
It is trivial to do so. |
Show » |
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Ability to use Aggregate Projections on Projections
It also fixes the bug in calculating the average.
For example,
if we have data
1,2,3,4 and take the average the result will be 2 because they are integers, but I believe it should be 2.5.
In order to achieve this, I've changed the constructor of AvgProjection like this
public class AvgProjection : AggregateProjection
{
public AvgProjection(String propertyName)
- : base("avg", propertyName)
+ : this(Projections.Property(propertyName))
{
}
+ public AvgProjection(IProjection projection)
+ : base("avg",Projections.Cast(NHibernateUtil.Double,projection))
+ {
+ }
I am not sure if this brings problem though.