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HI i have a field in database whose value is null = true but i need to update it timely with the integers .I am running this script on terminal 

getW =  get_HomeTeam_myworld.w  
getL =  get_HomeTeam_myworld.l  
if winloss == "w":
    getW = getW + 1 
    #getW.save()
    print getW

but it gives the following error

unsupported operand type(s) for +: 'NoneType' and 'int'

please suggest where i am doing mistake.

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3 Answers

up vote 4 down vote accepted

It seems like getW value is None. Add some check:

if winloss == "w":
    getW = getW + 1 if getW else 1
    #getW.save()
    print getW
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up vote 0 down vote

ok i fix it actuality we need to save the object 

get_HomeTeam_myworld.(save)
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tis is right can you also please tell me how can i save this update this value in db

this is the whole process

get_HomeTeam_myworld = myworld.objects.get(team_id=gethome_teamID)
    get_HomeTeam_myworld = myworld.objects.get(team_id=getaway_teamID)
    getW =  get_HomeTeam_myworld.w  
    getL =  get_HomeTeam_myworld.l  
    if winloss == "w":
        getW = getW + 1 if getW else 1
        getW.save() 
        print getW

it gives me the following error 

'int' object has no attribute 'save'
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get_HomeTeam_myworld.save() instead of getW.save() – Andrey Nelubin Aug 6 at 9:28
it doesnot throw any error but nothing is updated in db – Rohit Goel Aug 6 at 9:38
What prints myworld.objects.get(team_id=gethome_teamID).w after save? – Andrey Nelubin Aug 6 at 12:17
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