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smasher



Joined: 10 Jan 2004
Posts: 229
Location: Zaprešić

PostPosted: 04.06.2005 17:49    Post subject: Next Autoindex Add user to your forum ignore list Reply with quote

ovako, mene zanima jedna stvar.
u tablici (recimo za galeriju slika) imam dva polja: id, image. Ovaj id je stavljen na auto increment, pa ima Auto indexing.
Ja hoću u php-u displayat neku sliku (recimo ID=59) a uz nju želim prikazati jednu sliku ispred ove '59' i jednu iza nje....

to bi bilo sve super kad se nebi recimo uzimalo u obzir da se neke slike nakon postavljanja ne obrišu. Pa onda mogu imati redoslijed ID slika tipa: 0,1,5,7,9,24,59,67 .....

E,sad, ispred slike '59' mi je slika sa IDjem 24 a iza je sa ID-jem 67 ... kako da ja pomoću php-a, tj. MySQL queryja doznam da je 67 sljedeći ID, a 24 prethodni ???

Neko vrijeme imao sam to riješeno sa umanjivanjem/uvećavanjem ID-ja za jedan, al to je bilo kad sam imao neprekinuti interval ID-a.... a sad to naravno nebi radilo.


pomagajte !!!

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strija



Joined: 14 Sep 2003
Posts: 473
Location: Čakovec

PostPosted: 04.06.2005 17:55    Post subject: Add user to your forum ignore list Reply with quote

Jednostavno stavi podatke koje dobijes iz querya u jedan array, da imas onda ovako otprilike:

Code:
$slika[0]['id'] = 24;
$slika[0]['slika'] = 'slika_24.jpg';

$slika[1]['id'] = 59;
$slika[1]['slika'] = 'slika_59.jpg';

$slika[2]['id'] = 67;
$slika[2]['slika'] = 'slika_67.jpg';


Ako ti jos nije jasno posalji svoj dio koda pa ti probam ovo ubaciti.

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lekke



Joined: 17 Jun 2004
Posts: 860
Location: 25th floor

PostPosted: 04.06.2005 17:56    Post subject: Add user to your forum ignore list Reply with quote

Pa, u SQLu ostavis ORDER BY id, a u PHPu se proseces poljem u koje si fetchao recorde iz baze... sto ja znam, u nekoj zdravoseljackoj petlji while (ima jos recorda) pamtis u privremenoj varijabli ime od prethodne slike u nizu, pa onda kad naletis na svoj id prikazes i tu i poslije jos jednu iza

meni se cini jednostavno

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smasher



Joined: 10 Jan 2004
Posts: 229
Location: Zaprešić

PostPosted: 04.06.2005 19:35    Post subject: Add user to your forum ignore list Reply with quote

ma da, al mislio sam ono da nemoram sad listat sve iz te tablice... mislio sam da ima neka finta sa next. iako nisam skužio za kaj je to u mysql-u.

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