Duplicate units

mogikanin[CodePlex]
When HD saving series, it also save units for OffsetType.
HD checks that unit exists in the local database by all unit's fields: UnitsName, UnitsType and UnitsAbbreviation.

But xml with datavalues contains just UnitsAbbreviation and UnitsName:
e.g.

ltoffset offsetTypeID=quot28quotgt
ltoffsetDescriptiongtBelow ground surfacelt/offsetDescriptiongt
ltunits unitsAbbreviation=quotcmquot unitsCode=quot47quotgtcentimeterlt/unitsgt

lt/offsetgt

So, after save series, in Units table there are 2 same units:
UnintsName | UnitsType | UnitsAbbreviation|
centimeter Length cm
centimeter unknown cm

I think, need check that unit exists in the database only by 2 fields: UnintsName and UnitsAbbreviation

P.S. I tested this on quotDry Creek Experimental Watershedquot and keyword quotSoil Moisturequot.

Start at the HD series-saving flow and inspect how the Units table matches units when XML data values provide only UnitsAbbreviation and UnitsName. Reproduce with the Dry Creek Experimental Watershed dataset and “Soil Moisture” keyword; done means saving the series does not create duplicate centimeter rows with different UnitsType values.

Written by the indexing model from the issue text.