[OpenSIPS-Users] redis HMGET nil value problem

Vlad Paiu vladpaiu at opensips.org
Thu May 28 15:28:11 CEST 2015


Currently, only STRING and INTEGER data types are supported - no NULL 
support in the cachedb raw interface.

Please open a GITHUB issue for this and will fix it as soon as possible.

Best Regards,

Vlad Paiu
OpenSIPS Developer

On 28.05.2015 16:21, Jayesh Nambiar wrote:
> Hi,
> I'm using cache_raw queries to get data from redis and I have a 
> problem with accessing nil values that gets returned from it.
> For eg I do the following:
> cache_raw_query("redis:myRedis HMGET one two three", "$avp(result)");
> Here the value of one is abc, two is not present in redis and three is 
> xyz. Now if I access the values, I ideally expect it to be the following:
> $(avp(result)[0]) = xyz, $(avp(result)[1]) = <null> and 
> $(avp(result)[2]) = abc.
> But since key two is not present in redis for whatever reasons, the 
> result I get back is:
> $(avp(result)[0]) = xyz
> $(avp(result)[1]) = abc
> $(avp(result)[2]) = <null>
> This actually makes my value matching go for a toss. Is there a better 
> solution to access the array that is returned back from redis or at 
> least store the value as NULL in that array element of avp. Any help 
> is greatly appreciated.
> Thanks,
> - Jayesh
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> Users at lists.opensips.org
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