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Code Issues Releases Wiki Activity

Add a getFresh() method to PagesLoader and improve cache detection for the get() method

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This commit is contained in:
Ryan Cramer
2021-01-29 15:04:44 -05:00
parent 45e130202b
commit 3de5d4d2a6
1 changed files with 59 additions and 4 deletions
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59
wire/core/PagesLoader.php
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@@ -569,20 +569,39 @@ class PagesLoader extends Wire {
*
*/
public function get($selector, $options = array()) {
if(empty($selector)) return $this->pages->newNullPage();
if(is_string($selector) || is_int($selector)) {
$page = $this->pages->getCache($selector);
if(is_int($selector)) {
$getCache = true;
} else if(is_string($selector) && (ctype_digit($selector) || strpos($selector, 'id=') === 0)) {
$getCache = true;
} else {
$getCache = false;
}
if($getCache) {
// if cache is possible, allow user-specified options to dictate whether cache is allowed
if(isset($options['loadOptions']) && isset($options['loadOptions']['getFromCache'])) {
$getCache = (bool) $options['loadOptions']['getFromCache'];
}
if($getCache) {
$page = $this->pages->getCache($selector); // selector is either 123 or id=123
if($page) return $page;
}
}
$defaults = array(
'findOne' => true, // find only one page
'findAll' => true, // no exclusions
'getTotal' => false, // don't count totals
'caller' => 'pages.get'
);
$options = count($options) ? array_merge($defaults, $options) : $defaults;
$page = $this->pages->find($selector, $options)->first();
if(!$page) $page = $this->pages->newNullPage();
return $page;
}
@@ -1284,6 +1303,42 @@ class PagesLoader extends Wire {
));
}
/**
* Get a fresh, non-cached copy of a Page from the database
*
* This method is the same as `$pages->get()` except that it skips over all memory caches when loading a Page.
* Meaning, if the Page is already in memory, it doesn’t use the one in memory and instead reloads from the DB.
* Nor does it place the Page it loads in any memory cache. Use this method to load a fresh copy of a page
* that you might need to compare to an existing loaded copy, or to load a copy that won’t be seen or touched
* by anything in ProcessWire other than your own code.
*
* ~~~~~
* $p1 = $pages->get(1234);
* $p2 = $pages->get($p1->path);
* $p1 === $p2; // true: same Page instance
*
* $p3 = $pages->getFresh($p1);
* $p1 === $p3; // false: same Page but different instance
* ~~~~~
*
* #pw-advanced
*
* @param Page|string|array|Selectors|int $selectorOrPage Specify Page to get copy of, selector or ID
* @param array $options Options to modify behavior
* @return Page|NullPage
* @since 3.0.172
*
*/
public function getFresh($selectorOrPage, $options = array()) {
if(!isset($options['cache'])) $options['cache'] = false;
if(!isset($options['loadOptions'])) $options['loadOptions'] = array();
if(!isset($options['caller'])) $options['caller'] = 'pages.loader.getFresh';
$options['loadOptions']['getFromCache'] = false;
if(!isset($options['loadOptions']['cache'])) $options['loadOptions']['cache'] = false;
$selector = $selectorOrPage instanceof Page ? $selectorOrPage->id : $selectorOrPage;
return $this->get($selector, $options);
}
/**
* Count and return how many pages will match the given selector string
*