Sort sub field based on sub field value - Support Fourms - Meta Box

This topic has 3 replies, 2 voices, and was last updated 2 years, 1 month ago by Anh Tran.

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February 4, 2018 at 12:35 AM #8442

Resolved alisha
Participant

Hello,
Maybe this is my last question.Well, I am trying to building a football league point table.I have used following codes to create the metabox.

https://pastebin.com/YUWXpjuj

https://prnt.sc/i9n06o

And HTML/PHP codes below.

https://pastebin.com/9K9WrvLB

HTML/PHP output is below.

https://prnt.sc/i9n0ni

Now my query is:
Is it possible to show the point table on the front side based on the sub group field as for example number of match win (id:football_team_win_stat). More number of win team will be first and so on. Of course I can build the table from back end through drag and drop option.
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February 5, 2018 at 10:57 AM #8451
Anh Tran
Keymaster
Yes, you can. After getting group value, you can sort sub-groups using a custom function, like this:
```
$group = get_post_meta( get_the_ID(), 'football_league_table_option', true );
usort( $group, function ( $a, $b ) {
    $score_a = $a['football_team_win_stat'];
    $score_b = $b['football_team_win_stat'];
    if ( $score_a == $score_b ) {
        return 0;
    }
    return ( $score_a > $score_b ) ? - 1 : 1;
} );
$counter = 0;
// other code
```
February 6, 2018 at 12:10 AM #8464

alisha
Participant

It shows following warning.
Warning: usort() expects parameter 1 to be array, string given in C:\wamp\www\wordpress\wp-content\themes\goalkick\loop\popular-post.php on line 157

February 7, 2018 at 12:05 PM #8481

Anh Tran
Keymaster

Please check the field ID in the code. I didn’t know which $prefix you used, so I use football_. Not sure if that’s right.

Anyway, do not just copy and paste the code 😉
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