Re: Question: How to build complicated queries?
Dave Peticolas <[EMAIL PROTECTED]> writes: > The operator for the very first term in a query is ignored. > So you choose QUERY_AND when you add the second one and you > should get what you want. Ahh, thank you. That was the key piece I was missing. Is this fact documented anywhere? Even after re-implementing it I didn't even realize that the first term's QueryOp was ignored! :) > dave -derek -- Derek Atkins, SB '93 MIT EE, SM '95 MIT Media Laboratory Member, MIT Student Information Processing Board (SIPB) URL: http://web.mit.edu/warlord/PP-ASEL-IA N1NWH [EMAIL PROTECTED]PGP key available ___ gnucash-devel mailing list [EMAIL PROTECTED] http://www.gnumatic.com/cgi-bin/mailman/listinfo/gnucash-devel
Re: Question: How to build complicated queries?
On Sun, 2002-02-03 at 14:07, Derek Atkins wrote: > Dave Peticolas <[EMAIL PROTECTED]> writes: > > > > For example, I want a query to be: > > > > > > a && (b || (c && d)) > > > > To ensure grouping in a complicated expression, it's > > best to combine two simpler queries together with > > xaccQueryMerge. So you might create the query for > > c && d, and a query for 'b', and combine them, and > > then combine the resulting query with one for 'a'. > > Ok, if I'm going to create the query for, e.g. c AND d, > what's the right way of doing that? In particular, I > only want one logic operator, but I have to supply one > with each term. Do I need to create both the 'c' and > 'd' terms with AND, or do I put 'OR c' and 'AND d', or > is there something else what I'm missing? The operator for the very first term in a query is ignored. So you choose QUERY_AND when you add the second one and you should get what you want. dave signature.asc Description: This is a digitally signed message part
Re: Question: How to build complicated queries?
Dave Peticolas <[EMAIL PROTECTED]> writes: > > For example, I want a query to be: > > > > a && (b || (c && d)) > > To ensure grouping in a complicated expression, it's > best to combine two simpler queries together with > xaccQueryMerge. So you might create the query for > c && d, and a query for 'b', and combine them, and > then combine the resulting query with one for 'a'. Ok, if I'm going to create the query for, e.g. c AND d, what's the right way of doing that? In particular, I only want one logic operator, but I have to supply one with each term. Do I need to create both the 'c' and 'd' terms with AND, or do I put 'OR c' and 'AND d', or is there something else what I'm missing? Thanks, > dave -derek -- Derek Atkins, SB '93 MIT EE, SM '95 MIT Media Laboratory Member, MIT Student Information Processing Board (SIPB) URL: http://web.mit.edu/warlord/PP-ASEL-IA N1NWH [EMAIL PROTECTED]PGP key available ___ gnucash-devel mailing list [EMAIL PROTECTED] http://www.gnumatic.com/cgi-bin/mailman/listinfo/gnucash-devel
Re: Question: How to build complicated queries?
On Sun, 2002-02-03 at 09:18, Derek Atkins wrote: > I've been reading the query documentation but I don't > understand how one is supposed to use the existing APIs > to build a "complicated" query. > > For example, I want a query to be: > > a && (b || (c && d)) > > How would one use the QUERY_AND, QUERY_OR, etc. methods and > xaccQueryAddTerm() API to build a query of this logic? > > I guess my question is: what's the API to specify the "order of > logical operations", or how does one specify parens in a logical > expression? To ensure grouping in a complicated expression, it's best to combine two simpler queries together with xaccQueryMerge. So you might create the query for c && d, and a query for 'b', and combine them, and then combine the resulting query with one for 'a'. dave signature.asc Description: This is a digitally signed message part
Question: How to build complicated queries?
I've been reading the query documentation but I don't understand how one is supposed to use the existing APIs to build a "complicated" query. For example, I want a query to be: a && (b || (c && d)) How would one use the QUERY_AND, QUERY_OR, etc. methods and xaccQueryAddTerm() API to build a query of this logic? I guess my question is: what's the API to specify the "order of logical operations", or how does one specify parens in a logical expression? Thanks, -derek -- Derek Atkins, SB '93 MIT EE, SM '95 MIT Media Laboratory Member, MIT Student Information Processing Board (SIPB) URL: http://web.mit.edu/warlord/PP-ASEL-IA N1NWH [EMAIL PROTECTED]PGP key available ___ gnucash-devel mailing list [EMAIL PROTECTED] http://www.gnumatic.com/cgi-bin/mailman/listinfo/gnucash-devel
