MappingGet

Get data from incoming message

get(mpath)

Get 1 field from the incoming message; mpath specifies which field to get. Returns: string or, if field not found, None

#get the message date from an edifact invoice:
inn.get({'BOTSID':'UNH'},{'BOTSID':'DTM','C507.2005':'137','C507.2380':None}) 

Explanation: get field C507.2380 from DTM-record if field C507.2005 is '137', DTM-record nested under UNH-record.
The field to retrieve is specified as None.

getnozero(mpath)

Like get(), but: return a numeric string not equal to '0', otherwise None.
Eg useful in fixed records, where a numeric field is often initialized with zero's.

getloop(mpath)

For looping over repeated records or record groups.
Typical use: loop over article lines in an order.
Returns an object usable with get(); see example.

#loop over lines in edifact order:
for lin in inn.getloop({'BOTSID':'UNH'},{'BOTSID':'LIN'}):
    linenumber = lin.get({'BOTSID':'LIN','1082':None})
    articlenumber = lin.get({'BOTSID':'LIN','C212.7140':None})
    quantity = lin.get({'BOTSID':'LIN'},{'BOTSID':'QTY','C186.6063':'21','C186.6060':None})