Hi,

adding to that, working with arrays in Kamailio is not really simple. If in your database you have the following values:

key1 => value1 key1 => value2 key1 => value3

and have set those rows with an array type, the htable will look like this after startup:

$sht(htableName=>key1[0]) == "value1" $sht(htableName=>key1[1]) == "value2" $sht(htableName=>key1[2]) == "value3" $sht(htableName=>key1::size) == 3

Now you can use the size helper variable and iterate over those array entries. So far so good. The bad comes when manipulating those entries. Suppose you want to delete value2 from your htable. After you did that, the key1[1] entry will just be missing, you'll have a hole in your numbering, and the size counter will still be at three. And if you then want to add another entry to the htable, you will have to find out the next free key number (3) yourself, and you will have to incement the size helper variable manually.

And to make it worse, when writing back the htable on shutdown, those array type rows in database will end up as regular entries having key1[0] etc as key. The size helper row will be written into database, too.

So my recommendation would be to use the array stuff only on readonly htables, but never on htables you manipulate inside Kamailio. There's just too much that you have to think about.

Best Regards, Sebastian

On Wed, Aug 30, 2017 at 9:04 PM, Daniel-Constantin Mierla miconda@gmail.com wrote:

Hello,

can you try with a single value column?

The array type is something that was supposed to help keeping keys simpler in database, but the key is concatenated with the index, is not really an array.

Cheers, Daniel

On 30.08.17 20:06, George Diamantopoulos wrote:

Hello all, I'm becoming a regular here now, aren't I?

So I have this table in mysql: +----------+----------+--------+-----------+---------+ | key_name | key_type | value1 | value2 | value3 | +----------+----------+--------+--------+--------+ | key1 | 1 | valueA | valueF | valueK | | key1 | 1 | valueB | valueG | valueL | | key1 | 1 | valueC | valueH | valueM | | key2 | 1 | valueD | valueI | valueN | | key2 | 1 | valueE | valueJ | valueO |

I was hoping I could have all this information available in an sht, where for example:

$sht(a=>$key1[0]), $sht(a=>$key1[1]), etc

would return:

"valueA,valueF,valueK", "valueB,valueG,valueL" etc

but I can't figure out how to setup htable to import this data on restart. I have tried various combinations of module parameters such as:

modparam("htable", "htable", 'my_htable=>size=8;autoexpire=86400;dbtable=my_table;cols="key_name,value1,value2,value3";'

I'm either getting errors, or dumping htable will only show one of the value sets (key_type is not set to array).

Does anyone have a working config to share? Thanks!

George

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