When there are input elements for search criteria in frontend grid with pagination block 'page/html_pager', the search params will be lost when the user click on page n. This is because the URL links in the pager do not contain the search params. There are 3 solutions:
Do not Use POST in form
<form class="form-list" id="search_form">
Simple JS Solution
This can be fixed easily with js URLSearchParams.append() Show archive.org snapshot by appending the search params to the links:
$$('div.pager .pages ol li a').each(function(el){
let url = new URL(el.href);
$$('#search_form .field.left input, #search_form .field.left select').each(function(ele){
if(ele.value) {
url.searchParams.append(ele.name, ele.value);
el.href = url.href;
}
});
});
Complicated Server Side Solution if POST form
$searches = [];
foreach (['gender', 'criteria'] as $k) {
if ($v = $this->getRequest()->getParam($k)) {
$searches[$k] = $v;
}
}
/**
* Store search strings in session var to persist the searched collection for different pages.
*/
if ($this->getRequest()->getParam('p')) {
if (empty($searches)) {
/**
* Because reset has empty $searches, how do we know this is not a reset?
* We cannot, so the reset button must use $_SERVER['REDIRECT_URL'] to strip URL of param p.
*/
$searches = Mage::getSingleton('customer/session')->getMedSearches();
} elseif ($searches !== Mage::getSingleton('customer/session')->getMedSearches()) {
// Search has changed, so replace session var.
Mage::getSingleton('customer/session')->setMedSearches($searches);
}
} else {
// Store the search string. If reset, $searches is empty.
Mage::getSingleton('customer/session')->setMedSearches($searches);
}
if (isset($searches['gender'])) {
$collection->addFieldToFilter('gender, $searches['gender']);
}
The value of the search input element needs to be set:
<input
id="gender"
name="gender"
type="text" placeholder="Gender"
class="input-text"
value="<?php echo $this->getRequest()->getParam('gender', Mage::getSingleton('customer/session')->getMedSearches()['gender'] ?? '' ?>"
>
Posted by kiatng to OpenMage (2021-08-10 01:48)