vb.org Archive - how to UPDATE multiple inputs

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- - how to UPDATE multiple inputs (https://vborg.vbsupport.ru/showthread.php?t=57301)

cinq	09-22-2003 01:50 AM

how to UPDATE multiple inputs

I wish to display order of certain categories for eg.

Cat 1 , order : 1
Cat 2 , order : 2

( Runs thru the catorder table to display category names in ASC order of catorders. )

The orders are displayed as input boxes, which can be changed in value , say to reverse the order, i will put 2 in Cat 1's order input box and vice versa.

At the end of the form, i will click on a Submit button and the categories will have their orders updated accordingly ( i have a table column for Category order )

How should i go about doing this ?

Thanks for any help rendered. :D

Velocd

09-22-2003 02:24 PM

PHP Code:


		
			
$fetch_cats = $DB_site->query("SELECT id,title,order FROM `categories` ORDER BY order DESC");



while ($category = $DB_site->fetch_array($fetch_cats))

{

  echo $category['title'] . '&nbsp;&nbsp;&nbsp;';

  echo '<input type="text" name="cat_order['.$category['id'].']" value="'.$category['order'].'" />';

}

Then the POST process portion:

PHP Code:


		
			
$fetch_cats = $DB_site->query("SELECT id,title,order FROM `categories`");



while ($category = $DB_site->fetch_array($fetch_cats))

{

    $DB_site->query("UPDATE `categories` SET order=$_POST[cat_order][$category[id]] WHERE id=$category[id]");

}

This should work. You might get a parse error or two since I compiled this very quickly, but it shouldn't be hard to work around.

filburt1

09-22-2003 02:36 PM

Quote:

Originally Posted by Velocd

PHP Code:


		
			
$fetch_cats = $DB_site->query("SELECT id,title,order FROM `categories` ORDER BY order DESC");



while ($category = $DB_site->fetch_array($fetch_cats))

{

  echo $category['title'] . '&nbsp;&nbsp;&nbsp;';

  echo '<input type="text" name="cat_order['.$category['id'].']" value="'.$category['order'].'" />';

}

Then the POST process portion:

PHP Code:


		
			
$fetch_cats = $DB_site->query("SELECT id,title,order FROM `categories`");



while ($category = $DB_site->fetch_array($fetch_cats))

{

    $DB_site->query("UPDATE `categories` SET order=$_POST[cat_order][$category[id]] WHERE id=$category[id]");

}

This should work. You might get a parse error or two since I compiled this very quickly, but it shouldn't be hard to work around.

Very bad idea to query in a loop...

Dean C

09-22-2003 03:31 PM

Then how would we get round this one?

Velocd

09-22-2003 05:40 PM

There aren't many fast ways around it.

The method I provided is the exact vBulletin uses to update the order of forums in the Admin Cp:

PHP Code:


		
			
// ###################### Start do order #######################

if ($_POST['do'] == 'doorder')

{

    globalize($_POST, array('order'));



    if (is_array($order))

    {

        $forums = $DB_site->query("SELECT forumid,displayorder FROM " . TABLE_PREFIX . "forum");

        while ($forum = $DB_site->fetch_array($forums))

        {

            $displayorder = intval($order["$forum[forumid]"]);

            if ($forum['displayorder'] != $displayorder)

            {

                $DB_site->query("

                    UPDATE " . TABLE_PREFIX . "forum

                    SET displayorder = $displayorder

                    WHERE forumid = $forum[forumid]

                ");

            }

        }

    }



    build_forum_permissions();



    define('CP_REDIRECT', 'forum.php?do=modify');

    print_stop_message('saved_display_order_successfully');

}

The only main difference is this:

PHP Code:


		
			
            $displayorder = intval($order["$forum[forumid]"]);

            if ($forum['displayorder'] != $displayorder)

Which is a check to ensure that it's not quering and updating a row when it has yet to be modified.

You could probably apply the same to the code above.

Dean C

10-06-2003 06:15 PM

I feel ashamed to be bumping a reasonably old thread but i'm ecountering a similar issue at the moment. I want to update multiple rows in a database with one query. Any solution?

Admin

10-07-2003 12:15 PM

Supposedly this might work:

Code:

UPDATE table SET order = IF(id = 1, 1, IF(id = 2, 2, 3)) WHERE id IN (1, 2, 3);

But I doubt it.

TECK	10-17-2003 12:59 AM

Quote:

Originally Posted by Chen

Supposedly this might work:

Code:

UPDATE table SET order = IF(id = 1, 1, IF(id = 2, 2, 3)) WHERE id IN (1, 2, 3);

But I doubt it.

Whoot? You are still alive? :D

cinq	10-17-2003 02:26 AM

Quote:

Originally Posted by TECK

Whoot? You are still alive? :D

:D

Will try some of the code provided here, thanks guys :)

Dean C

10-17-2003 09:10 AM

Quote:

Originally Posted by TECK

Whoot? You are still alive? :D

He's around all the time in the vBulletin.org chat TECK :)

Btw cinq - the best way I found of doing this was via vb3's method which VelocD highlighted :)

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