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dynamic data

Thread began 2/11/2015 4:14 pm by Kumel | Last modified 2/18/2015 4:56 pm by Kumel | 610 views | 6 replies

Kumel

dynamic data

Site is about displaying artworks.
Tables are artwork & artist.
Artwork stores artist id to identify artist name & etc.

So for an example for demonstration i will use following data:
ARTIST TABLE id: 1,2,3,4,5,6 (only artist id)
ARTWORK TABLE id: 7,8,9,10 (artwork id)



So lets say i m on artwork.php where all 7,8,9,10 are displayed. when viewing one on artwork-details.php ex: id=7, then there are next & prev buttons which links to next artwork id or prev like id=8(next) or id=10(prev).

for next id a href is :

<a class="portfolio-next" href="artwork-details.php?id=<?php echo $totalRows_rsnextid == 0 ? $row_rsminmaxid['MinID']:(isset($_GET['id'])?$row_rsnextid['id']:1);?>">


for prev id a href is:

<a class="portfolio-prev" href="artwork-details.php?id=<?php echo $totalRows_rspreviousid == 0 ? $row_rsminmaxid['MaxID']:(isset($_GET['id'])?$row_rspreviousid['id']:1);?>">



so rsnextid, rsminmaxid, rspreviousid are:

$currentid_rsnextid = "-1";
if (isset($_GET['id'])) {
$currentid_rsnextid = $_GET['id'];
}
mysql_select_db($database_con1, $con1);
$query_rsnextid = sprintf("SELECT id FROM artworks WHERE id > %s ORDER BY id ASC LIMIT 1", GetSQLValueString($currentid_rsnextid, "int"));
$rsnextid = mysql_query($query_rsnextid, $con1) or die(mysql_error());
$row_rsnextid = mysql_fetch_assoc($rsnextid);
$totalRows_rsnextid = mysql_num_rows($rsnextid);

$currentid_rspreviousid = "-1";
if (isset($_GET['id'])) {
$currentid_rspreviousid = $_GET['id'];
}
mysql_select_db($database_con1, $con1);
$query_rspreviousid = sprintf("SELECT id FROM artworks WHERE id < %s ORDER BY id DESC LIMIT 1", GetSQLValueString($currentid_rsnextid, "int"));
$rspreviousid = mysql_query($query_rspreviousid, $con1) or die(mysql_error());
$row_rspreviousid = mysql_fetch_assoc($rspreviousid);
$totalRows_rspreviousid = mysql_num_rows($rspreviousid);

mysql_select_db($database_con1, $con1);
$query_rsminmaxid = "SELECT min(id) AS MinID, max(id) AS MaxID FROM artworks";
$rsminmaxid = mysql_query($query_rsminmaxid, $con1) or die(mysql_error());
$row_rsminmaxid = mysql_fetch_assoc($rsminmaxid);
$totalRows_rsminmaxid = mysql_num_rows($rsminmaxid);



Now as said artwork-detail page works fine, but i got a challenge at some other page.
ie artist-details.php

artist.php page displays all artists ie. ID= 1,2,3,4,5,6.

Now lets say i choose id=1 (Artist id) from artist.php page then his/her artworks linked are shown at artist-details.php (7,9,10 artwork id). then lets say person clicks on any artwork(artwork id 7) which view fine, now when clicking next or prev it take to direct next(artworkid=8 in which above example it must be 9) same with prev. so i m not sure how its done. i guess this can be helpful for me to next time use it for other things as well.

So how can this be made?
When viewing a artwork-details link is like : artwork-details.php?id=7
so i guess it must be like artwork-details.php?id=7?artistid=1
not sure how to do it.

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