Something inside parenthesis, not sure if it specify the end of the string,
in my case the parentheisis is at the end...
:)
Richard
On Fri, Jul 8, 2016 at 5:56 PM, Dave S <snidely....@gmail.com> wrote:
>
>
> On Friday, July 8, 2016 at 12:13:41 PM UTC-7, Richard wrote:
>>
>> Answer is yes it work just fine...
>>
>> db(db.ref_colorimeter_color.filter_parameter.belongs(['delta_a',
>> 'delta_a_b'])).select(db.ref_colorimeter_color.color,
>> orderby="substring(color, '\(([^\)]+)\)')")
>>
>> But with this :
>>
>> db.ref_colorimeter_color.color.regexp('\(([^\)]+)\)')
>>
>> It doesn't seems to work as DAL translate it into :
>>
>> SELECT ref_colorimeter_color.color
>> FROM ref_colorimeter_color
>> WHERE (ref_colorimeter_color.filter_parameter IN ('delta_a_b','delta_a'))
>> ORDER BY (ref_colorimeter_color.color ~ '\(([^\)]+)\)');
>>
>> Which don't seems to help in sorting record... I try to understand why
>> regexp get translated that way :
>>
>>
>>
>> https://github.com/web2py/pydal/blob/e1136b6e29e4dbeb878cf9718c053aa790d909b5/pydal/dialects/postgre.py#L78
>>
>> I am not sure the rational of :
>>
>> order by field_name ~ regexp
>>
>> I can find anything in postgres documentation as far as my search goes...
>>
>> Richard
>>
>>
> OT: that's one of those regexps that makes me dizzy. Trying to find
> strings that begin with a part in parentheses?
>
> /dps
>
>
>
>>
>>
>>
>> On Fri, Jul 8, 2016 at 1:04 PM, Richard <ml.richa...@gmail.com> wrote:
>>
>>> Can we do that :
>>>
>>>
>>> http://stackoverflow.com/questions/8989098/postgres-order-data-by-part-of-string
>>>
>>> ?
>>>
>>> Maybe like this ?
>>>
>>> orderby='substring(tablename.fieldname, ...)'
>>>
>>> ??
>>>
>>> Thanks
>>>
>>> Richard
>>>
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