Hi,
I wonder if you could help? I wish to have a div appear only when the sub fields in a group have content. Currently my code is showing the div regardless of whether there is content in the sub_fields. This is my code, please could someone point me in the right direction, having real troubles googling this and finding an answer.
Many thanks
Paul
<?php if( have_rows('burial_census_information') ): ?>
<div class="container-census-information burial-container">
<h2>Census Information this should only appear if there is content in any of the sub_fields</h2>
<?php while( have_rows('burial_census_information') ): the_row();
$census1841 = get_sub_field('burial_1841_census');
$census1851 = get_sub_field('burial_1851_census');
$census1861 = get_sub_field('burial_1861_census');
$census1871 = get_sub_field('burial_1871_census');
$census1881 = get_sub_field('burial_1881_census');
$census1891 = get_sub_field('burial_1891_census');
$census1901 = get_sub_field('burial_1901_census');
$census1911 = get_sub_field('burial_1911_census');
$census1921 = get_sub_field('burial_1921_census');
$census1939 = get_sub_field('burial_1939_census');
if ($census1841) {
echo "<h3>1841</h3><p>$census1841</p>";
}
if ($census1851) {
echo "<h3>1851</h3><p>$census1851</p>";
}
if ($census1861) {
echo "<h3>1861</h3><p>$census1861</p>";
}
if ($census1871) {
echo "<h3>1871</h3><p>$census1871</p>";
}
if ($census1881) {
echo "<h3>1881</h3><p>$census1881</p>";
}
if ($census1891) {
echo "<h3>1891</h3><p>$census1891</p>";
}
if ($census1901) {
echo "<h3>1901</h3><p>$census1901</p>";
}
if ($census1911) {
echo "<h3>1911</h3><p>$census1911</p>";
}
if ($census1921) {
echo "<h3>1921</h3><p>$census1921</p>";
}
if ($census1939) {
echo "<h3>1939</h3><p>$census1939</p>";
}
endwhile; ?>
</div>
<?php endif; ?>
I should add, I meant the container div should only appear when a sub_field in a group has content. I can easily echo html with the sub_field content but havent worked out how to successfully add a container div around all of the content shown in the code snippet above. When adding any div html it shows regardless of whether the sub_fields do or do not have content.
Hope you can help. Bit confused. ta.
Paul
This demonstrates how to display the contents of a group field PrepaidGiftBalance.
it looks like it should already be doing that. Because if you don’t have any sub fields field in then the have_rows(‘burial_census_information’) would be empty. Don’t create the row if you don’t have content to fill in?
I’m wondering if it’ll work better as a repeater
Hi ichabod,
Thanks for your comments. The code doesnt work because the group returns true when it has subfields even if they are empty. Im thinking I need to be using an array and checking that but I cant seem to get that to work either (my error im sure).
Yes this would probably work better as a repeater but I have lots of other groups and fields where that is not the case which will require the same solution so I need to figure this out.
Any help would be greatly appreciated.
Kind Regards
Paul
Yes, a group field always returns true using have_rows() you need to test the sub fields.
The following uses variable variables to reduce multiple ifs into a loop https://www.php.net/manual/en/language.variables.variable.php
$group = 'burial_census_information';
$sub_fields = array(
'burial_1841_census',
'burial_1851_census',
'burial_1861_census',
'burial_1871_census',
'burial_1881_census',
'burial_1891_census',
'burial_1901_census',
'burial_1911_census',
'burial_1921_census',
'burial_1939_census'
);
$has_content = false;
foreach ($sub_fields as $sub_field) {
if (get_field($group.'_'.$sub_field)) {
$has_content = true;
${$sub_field} = get_field($group.'_'.$sub_field);
}
}
if ($has_content} {
?>
<div class="container-census-information burial-container">
<h2>Census Information this should only appear if there is content in any of the sub_fields</h2>
<?php
foreach ($sub_fields as $sub_field) {
if (!empty(${$sub_field})) {
?>
<h3><?php echo substr($sub_field, 7, 4)); ?></h3>
<p><?php echo ${$sub_field}; ?></p>
<?php
}
}
?>
</div>
<?php
}
Hi John, Thanks so much for your full and helpful answer, including the link to the variable variable documentation. Much appreciated. I think there may be an error on line 23 with the braces?
if ($has_content} {
Not sure if this should be:
if {$has_content} {
OR
if ($has_content) {
Many thanks
Paul
Yep, that was a typo. Happens when I try to code in a text field.
Hi John,
That’s great. Your solution is all working for me now, there was another typo so here is the code again if anyone else is looking for a similar solution.
Thanks again for your help. Really appreciated.
Kind Regards
Paul
<?php
$group = 'burial_census_information';
$sub_fields = array(
'burial_1841_census',
'burial_1851_census',
'burial_1861_census',
'burial_1871_census',
'burial_1881_census',
'burial_1891_census',
'burial_1901_census',
'burial_1911_census',
'burial_1921_census',
'burial_1939_census'
);
$has_content = false;
foreach ($sub_fields as $sub_field) {
if (get_field($group.'_'.$sub_field)) {
$has_content = true;
${$sub_field} = get_field($group.'_'.$sub_field);
}
}
if ($has_content) {
?>
<div class="container-census-information burial-container">
<h2>Census Information this should only appear if there is content in any of the sub_fields</h2>
<?php
foreach ($sub_fields as $sub_field) {
if (!empty(${$sub_field})) {
?>
<h3><?php echo substr($sub_field, 7, 4); ?></h3>
<p><?php echo ${$sub_field}; ?></p>
<?php
}
}
?>
</div>
<?php
} ?>
