Using variable in Collection

MikeHarrison · Jun 5th 2019

I am trying to work out the best way to structure this page. It is the 'detail' part of a list-detail setup using Collections. The issue is I am constructing a variable based on data from the collection item, and need to then show that as part of the template. This is what I have so far:

Code

$selectedVacancy = perch_get('s');
if($selectedVacancy){
$vacancy = perch_collection('Vacancies',[
'template' => 'vacancies/vacancy_single',
'skip-template' => true,
'return-html' => true,
'filter' => 'slug',
'match' => 'eq',
'value' => $selectedVacancy
]);
// Checks for when the posting was and sets a variable
$postDate = $vacancy[0]['post_date'];
$date1 = date_create($today);
$date2 = date_create($postDate);
$diff = date_diff($date1,$date2);
$days = $diff->format("%a");
$months = $diff->format("%m");
if ($months > 0) {
$posted = 'Posted ' . $months . ' months ago';
}
elseif ($days > 0) {
$posted = 'Posted ' . $days . ' days ago';
}
else {
$posted = 'Posted today';
}
PerchSystem::set_var('posted', $posted);
echo $vacancy['html'];
}

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So in the template vacancies/vacancy_single I want to use the $posted variable (e.g. <perch:content id="posted">), but of course I can't because it is being set after the perch_collection. There is probably a simple solution to this but I can't see it! Thanks for any help.

Mike

drewm · Jun 5th 2019

I would do this in the template using a template filter.

MikeHarrison · Jun 5th 2019

Ah yes - hadn't thought of that. Thanks for the pointer Drew.

For those that come after, this is what I did in addons/templates/filters.php :

Code

class PerchTemplateFilter_timesince extends PerchTemplateFilter
{
public function filterAfterProcessing($value, $valueIsMarkup = false)
{
$postDate = $value;
$today = date('Y-m-d');
$date1 = date_create($today);
$date2 = date_create($postDate);
$diff = date_diff($date1,$date2);
$days = $diff->format("%a");
$months = $diff->format("%m");
if ($months > 0) {
$posted = 'Posted ' . $months . ' months ago';
}
elseif ($days > 0) {
$posted = 'Posted ' . $days . ' days ago';
}
else {
$posted = 'Posted today';
}
return $posted;
}
}
PerchSystem::register_template_filter('timesince', 'PerchTemplateFilter_timesince');

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Clive Walker · Jun 6th 2019

Can you put this on Github? Would be a good addition to https://github.com/clivewalker/perchology-links and I would prefer a Github URL to link to.

Using variable in Collection

MikeHarrison Jun 5th 2019

drewm Jun 5th 2019