World: r4wp
[Rebol School] REBOL School
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Maxim 3-Jul-2012 [517] | the compare function should return true of false based on order of the two input arguments. |
Sujoy 3-Jul-2012 [518x2] | this works great for fields in a simple object series: sort-object-series: func [ series field ] [ sort/compare series func[a b][lesser? get in a field get in b field] ] |
am fumbling with the get in bit... | |
Maxim 3-Jul-2012 [520x2] | sf: func [a b][ a/attribs/Y1991/n > b/attribs/Y1991/n ] |
sort/compare series :sf | |
Sujoy 3-Jul-2012 [522] | that was stupid of me to miss! thanks! |
Maxim 3-Jul-2012 [523] | no, its so simple we often think that there is more to it :-) |
Sujoy 3-Jul-2012 [524x3] | :) |
can i introduce an additional complexity? what if i need to sort a hash? m: #hash! [key-a obj-a key-b obj-b] | |
sort/compare/skip series :sf 2 ?? | |
Maxim 3-Jul-2012 [527] | yep |
Sujoy 3-Jul-2012 [528] | cool! love rebol :) |
Maxim 3-Jul-2012 [529x2] | but if you need to sort with sf above (which uses obj data) then you also need to add the index within the skip. (because the obj is not the first item of the fields marked with /skip |
so it would be: sort/compare/skip/index series :sf 2 2 | |
Sujoy 3-Jul-2012 [531] | testing it now... |
Maxim 3-Jul-2012 [532x3] | doh... that's my old modified sort func... |
compare is used for the index and the func... hum. | |
I think you get blocks of fields when you use /compare with /skip | |
Sujoy 3-Jul-2012 [535x6] | >> blk: [1 [2 3] 0 [4 8] 5 [4 3]] >> sort/skip blk 1 == [0 [4 8] 1 [2 3] 5 [4 3]] |
sorry - that should read >> sort/skip blk 2 | |
ok - am failing with the test, probably because i specified the problem wrongly | |
h: #hash! [k-a object! [ name: "wonderwoman" attribs: make hash! ["1993-1994" #object! [ rebal-year: 1993 m: 160.018245 ] "1992-1993" #object! [ rebal-year: 1992 m: 104.293 ] "1991-1992" #object! [ rebal-year: 1991 m: 26.628 ]] ...and so on... | |
my keys - for both the main hash and the inner hash are strings | |
i need to sort the hash h by the m attribute of the attribs hash any ideas? would the same :sf work? | |
Maxim 3-Jul-2012 [541x3] | ok, so to get complete records, you need the /all refinement... |
>> sort/skip/compare/all [1 [2 "a"] 0 [4 "z"] 5 [4 "m"]] 2 func [a b][a/2/2 < b/2/2 ] == [1 [2 "a"] 5 [4 "m"] 0 [4 "z"]] | |
a, m, z are sorted. | |
Sujoy 3-Jul-2012 [544] | yup - that works... but would it work for the structure i posted? |
Maxim 3-Jul-2012 [545] | yes, you just need to adapt the paths you lookup. the sort func gets a pair of blocks which are the whole records, which is why I start with a /2 to get the second field, which is the block ... in your case, that would be the object |
Sujoy 3-Jul-2012 [546x3] | ok - thanks maxim trrying it now |
any luck with the new release of mod-web-api? | |
...and the json data structure? | |
Maxim 3-Jul-2012 [549] | the mod has been so heavily modified, its almost a complete rewrite. its also heavily embeded within our production environement (libs and stuff) so that making it a stand-alone mod again will take some time... some time which currently, I don't have. though note that we didin't actually add json support but greatly increased the flexibility of the i/o format conversion. |
Sujoy 3-Jul-2012 [550] | sounds great...since i'm a noob, not sure i can help, but will gladly pitch in |
Maxim 3-Jul-2012 [551x2] | we neededed to support, xml rest, SOAP and direct get/post interface to the same functions, and that is now working via a configuration, which allows you to tweak how the url is read and switch interfaces on the fly. |
I also added path support for the mod so that you can use the same domain for web and api services. | |
Sujoy 3-Jul-2012 [553x2] | wow - cool! |
any chance i can get to play with the code? | |
Maxim 3-Jul-2012 [555] | like I said , right now I can't rip it out easily because a lot of the code is shared with the code it serves (which is not part of the open source package). It wasn't built with the task of making it independent... but it can be done. It just takes time, which I currently don't have. |
Sujoy 3-Jul-2012 [556x3] | no worries - am happy to wait! |
sorry maxim - not having any luck with the sort function >> sf: func [a b][o: select a/attribs "1991-1992" m: select b/attribs "1991-1992" o/m > m/m ] >> sort/skip/compare/all comps 2 :sf ** Script Error: Invalid path value: attribs ** Near: o: select a/attribs "1991-1992" | |
help? | |
Henrik 3-Jul-2012 [559] | One of your objects does not have the 'attribs word. |
Sujoy 3-Jul-2012 [560] | this is the structure i'm using: h: #hash! [k-a object! [ name: "wonderwoman" attribs: make hash! ["1993-1994" #object! [ rebal-year: 1993 m: 160.018245 ] "1992-1993" #object! [ rebal-year: 1992 m: 104.293 ] "1991-1992" #object! [ rebal-year: 1991 m: 26.628 ] ] k-b object! [ name: "wonderwoman" attribs: make hash! ["1993-1994" #object! [ rebal-year: 1993 m: 160.018245 ] "1992-1993" #object! [ rebal-year: 1992 m: 104.293 ] "1991-1992" #object! [ rebal-year: 1991 m: 26.628 ] ] |
Henrik 3-Jul-2012 [561x2] | The first element in that has does not appear to be an object. |
that has = that hash | |
Sujoy 3-Jul-2012 [563x2] | yes - its actually a string |
shouldnt sort/skip/compare/all comps 2 :sf pick up the object? | |
Henrik 3-Jul-2012 [565x2] | I'm not sure if it's possible, but you may then need to use 4 parameters instead of 2 in the compare function. Then use the string/object pairs for comparison. |
I'm not certain that SKIP can be used with COMPARE. | |
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