SimpleTemplateCachingSiteConfigExtension::update_cache_key() - Code Metrics - Inspection of "FIX: enhanced cms experience" - sunnysideup/silverstripe-simple-template-caching - Measure and Improve Code Quality continuously with Scrutinizer

Passed

Push — master ( 7d4e8a...625645 )

by Nicolaas

created 2025-02-01 22:57 UTC

update_cache_key() B

↳ Parent: SimpleTemplateCachingSiteConfigExtension

Complexity

Conditions	7
Paths	10

Size

Total Lines	38
Code Lines	24

Duplication

Lines	0
Ratio	0 %

Importance

Changes	6
Bugs	0	Features	0

Metric	Value
cc	7
eloc	24
c	6
b	0
f	0
nc	10
nop	1
dl	0
loc	38
rs	8.6026

<?php

namespace Sunnysideup\SimpleTemplateCaching\Extensions;

use Exception;
use Page;
filter:
    dependency_paths: ["lib/*"]
use SilverStripe\CMS\Model\SiteTree;
use SilverStripe\Control\Controller;
use SilverStripe\Control\Director;
use SilverStripe\Core\Injector\Injector;
use SilverStripe\Forms\CheckboxField;
use SilverStripe\Forms\FieldList;
use SilverStripe\Forms\GridField\GridField;
use SilverStripe\Forms\GridField\GridFieldConfig_RecordViewer;
use SilverStripe\Forms\NumericField;
use SilverStripe\Forms\ReadonlyField;
use SilverStripe\Core\Extension;
use SilverStripe\Forms\HeaderField;
use SilverStripe\ORM\DB;
use SilverStripe\ORM\FieldType\DBDatetime;
use SilverStripe\SiteConfig\SiteConfig;
use Sunnysideup\SimpleTemplateCaching\Model\ObjectsUpdated;

/**
 * Class \Sunnysideup\SimpleTemplateCaching\Extensions\SimpleTemplateCachingSiteConfigExtension.
 *
 * @property SiteConfig|SimpleTemplateCachingSiteConfigExtension $owner
 * @property bool $HasCaching
 * @property int $PublicCacheDurationInSeconds
 * @property bool $RecordCacheUpdates
 * @property string $CacheKeyLastEdited
 * @property string $ClassNameLastEdited
 */
class SimpleTemplateCachingSiteConfigExtension extends Extension
{
    private const MAX_OBJECTS_UPDATED = 1000;

    private static string $image_cache_directive = '
<IfModule mod_headers.c>
  <FilesMatch "\.(jpg|jpeg|png|gif|webp|svg|avif)$">
    Header set Cache-Control "public, max-age=86400"
  </FilesMatch>
</IfModule>
    ';

    private static string $css_and_js_cache_directive = '
<IfModule mod_headers.c>
  <FilesMatch "\.(js|css)$">
    Header set Cache-Control "public, max-age=86400"
  </FilesMatch>
</IfModule>
    ';

    private static $db = [
        'HasCaching' => 'Boolean(1)',
        'HasPartialCaching' => 'Boolean(1)',
        'HasResourceCaching' => 'Boolean(1)',
        'PublicCacheDurationInSeconds' => 'Int',
        'RecordCacheUpdates' => 'Boolean(0)',
        'CacheKeyLastEdited' => 'DBDatetime',
        'ClassNameLastEdited' => 'Varchar(200)',
    ];

    public function updateCMSFields(FieldList $fields)
    {
        $owner = $this->getOwner();
        $name = '[none]';
        if (class_exists((string) $owner->ClassNameLastEdited)) {
            $name = Injector::inst()->get($owner->ClassNameLastEdited)->i18n_singular_name();
        }

        // page caching
        $fields->addFieldsToTab(
            'Root.Caching',
            [
                HeaderField::create('FullPageCachingHeader', 'Full Page Caching'),
                CheckboxField::create('HasCaching', 'Allow caching of entire pages?')
                    ->setDescription(
                        'You will also need to set up the cache time below for it to be enabled.
                        You can set a default time below, but you can also set the time for individual pages.'
                    ),
            ]
        );
        if ($owner->HasCaching) {
            $fields->addFieldsToTab(
                'Root.Caching',
                [
                    NumericField::create('PublicCacheDurationInSeconds', 'Cache time for ALL pages')
                        ->setDescription(
                            'USE WITH CARE - This will apply caching to ALL pages on the site.
                            Time is in seconds (e.g. 600 = 10 minutes).
                            Cache time on individual pages will override this value set here.
                            The total number of pages on the site with an individual caching time is: ' . Page::get()->filter('PublicCacheDurationInSeconds:GreaterThan', 0)->count()
                        ),
                ]
            );
        }

        //partial caching
        $fields->addFieldsToTab(
            'Root.Caching',
            [
                HeaderField::create('PartialCachingHeader', 'Partial Caching'),
                CheckboxField::create('HasPartialCaching', 'Allow partial template caching?')
                    ->setDescription(
                        'This should usually be turned on unless you want to make sure no templates are cached in any part at all.'
                    ),
            ]
        );
        if ($owner->HasPartialCaching) {
            $fields->addFieldsToTab(
                'Root.Caching',
                [
                    CheckboxField::create('RecordCacheUpdates', 'Keep a record of what is being changed?')
                        ->setDescription(
                            'To work out when the cache is being cleared,
                            you can keep a record of the last ' . self::MAX_OBJECTS_UPDATED . ' records changed.
                            Only turn this on temporarily for tuning purposes.'
                        ),
                ]
            );
            if ($this->getOwner()->RecordCacheUpdates) {
                $fields->addFieldsToTab(
                    'Root.Caching',
                    [

                        ReadonlyField::create('CacheKeyLastEditedNice', 'Last database change', $owner->dbObject('CacheKeyLastEdited')->ago())
                            ->setDescription(
                                'The frontend template cache will be invalidated every time this value changes.
                                                The value changes every time anything is changed in the database.'
                            ),
                        ReadonlyField::create('ClassNameLastEditedNice', 'Last record updated', $name)
                            ->setDescription('The last record to invalidate the cache.'),

                        GridField::create(
                            'ObjectsUpdated',
                            'Last ' . self::MAX_OBJECTS_UPDATED . ' records updated',
                            ObjectsUpdated::get()->limit(self::MAX_OBJECTS_UPDATED),
                            GridFieldConfig_RecordViewer::create()
                        )
                            ->setDescription(
                                '
                                This is a list of the last ' . self::MAX_OBJECTS_UPDATED . ' records updated.
                                It is used to track changes to the database.
                                It includes: ' . ObjectsUpdated::classes_edited()
                            ),
                    ]
                );
            }
        }
        // resource caching
        $fields->addFieldsToTab(
            'Root.Caching',
            [
                HeaderField::create('ResourceCachingHeader', 'Resource Caching'),
                CheckboxField::create('HasResourceCaching', 'Allow caching of resources (e.g. images, styles, etc.). ')
                    ->setDescription(
                        'This will add cache control headers to your .htaccess file for images, styles, and scripts.
                        This will help with performance, but once cached, a cache can not be cleared without changing the file name.'
                    ),
            ]
        );
    }

    public static function site_cache_key(): string
    {
        $obj = SiteConfig::current_site_config();
        if ($obj->HasPartialCaching) {
            return 'ts_' . strtotime((string) $obj->CacheKeyLastEdited);
        }

        return 'ts_' . time();
    }

    public static function update_cache_key(?string $className = '')
    {
        // important - avoid endless loop!
        if (SiteConfig::get()->exists()) {
            $howOldIsIt = DB::query('SELECT Created FROM SiteConfig LIMIT 1')->value();
            if ($howOldIsIt && strtotime((string) $howOldIsIt) > strtotime('-5 minutes')) {
                return;
            }
        } else {
            return;
        }
        try {
            $obj = SiteConfig::current_site_config();
            if ($obj->HasPartialCaching) {
                DB::query('
                    UPDATE "SiteConfig"
                    SET
                        "CacheKeyLastEdited" = \'' . DBDatetime::now()->Rfc2822() . '\',
                        "ClassNameLastEdited" = \'' . addslashes((string) $className) . '\'
                    WHERE ID = ' . $obj->ID . '
                    LIMIT 1
                ;');
                if ($obj->RecordCacheUpdates) {
                    $recordId = Injector::inst()
                        ->create(ObjectsUpdated::class, ['ClassNameLastEdited' => $className])
                        ->write();
                    DB::query('DELETE FROM "ObjectsUpdated" WHERE "ID" < ' . (int) ($recordId - self::MAX_OBJECTS_UPDATED));
                }
            } else {
                DB::query('TRUNCATE "ObjectsUpdated";');
            }
        } catch (Exception $e) {
            DB::query('
                UPDATE "SiteConfig"
                SET
                    "CacheKeyLastEdited" = \'' . DBDatetime::now()->Rfc2822() . '\',
                    "ClassNameLastEdited" = \'ERROR\'
                WHERE ID = ' . $obj->ID . '
                LIMIT 1
        ;');
        }
    }

    public function requireDefaultRecords()
    {
        $currentSiteConfig = SiteConfig::current_site_config();
        if ((int) SiteConfig::get()->count() > 100) {
            if ($currentSiteConfig) {

                DB::alteration_message('Deleting all SiteConfig records except for the current one.', 'deleted');
                DB::query('DELETE FROM "SiteConfig" WHERE ID <> ' . $currentSiteConfig->ID);
            }
        }
        foreach (
            [
                'IMAGE_CACHE_DIRECTIVE' => $currentSiteConfig->config()->get('image_cache_directive'),
                'CSS_JS_CACHE_DIRECTIVE' => $currentSiteConfig->config()->get('css_and_js_cache_directive'),
            ] as $key => $value
        ) {
            if (! $currentSiteConfig->HasResourceCaching) {
                $value = '';
            }
            $this->updateHtaccess($key, $value);
        }
    }

    protected function updateHtaccess(string $code, string $toAdd)
    {
        $htaccessPath = Controller::join_links(Director::publicFolder(), '.htaccess');
        $htaccessContent = file_get_contents($htaccessPath);
        $originalContent = $htaccessContent;

        // Define start and end comments
        $startComment = PHP_EOL . "# auto add start " . $code . PHP_EOL;
        $endComment = PHP_EOL . "# auto add end " . $code . PHP_EOL;

        // Full content to replace or add
        $toAddFull = $startComment . $toAdd . $endComment;

        // Check if the section already exists
        $pattern = "/" . preg_quote($startComment, '/') . ".*?" . preg_quote($endComment, '/') . "/s";
        if (preg_match($pattern, $htaccessContent)) {
            // Replace existing content between the start and end comments
            $htaccessContent = preg_replace($pattern, $toAddFull, $htaccessContent);
        } else {
            // Prepend the new content if not found
            $htaccessContent = $toAddFull . $htaccessContent;
        }
        if ($originalContent !== $htaccessContent) {
            // Save the updated .htaccess file
            DB::alteration_message('Updating .htaccess file with ' . $code . ' cache directive', 'created');
            file_put_contents($htaccessPath, $htaccessContent);
        }
    }
}


1			<?php
2
3			namespace Sunnysideup\SimpleTemplateCaching\Extensions;
4
5			use Exception;
6			use Page;
			0 ignored issues – show Bug introduced 2025-02-01 23:02 UTC by Report Bug Copy Issue Report The type `Page` was not found. Maybe you did not declare it correctly or list all dependencies? The issue could also be caused by a filter entry in the build configuration. If the path has been excluded in your configuration, e.g. `excluded_paths: ["lib/"]`, you can move it to the dependency path list as follows: filter: dependency_paths: ["lib/"] For further information see https://scrutinizer-ci.com/docs/tools/php/php-scrutinizer/#list-dependency-paths Loading history...
7			use SilverStripe\CMS\Model\SiteTree;
8			use SilverStripe\Control\Controller;
9			use SilverStripe\Control\Director;
10			use SilverStripe\Core\Injector\Injector;
11			use SilverStripe\Forms\CheckboxField;
12			use SilverStripe\Forms\FieldList;
13			use SilverStripe\Forms\GridField\GridField;
14			use SilverStripe\Forms\GridField\GridFieldConfig_RecordViewer;
15			use SilverStripe\Forms\NumericField;
16			use SilverStripe\Forms\ReadonlyField;
17			use SilverStripe\Core\Extension;
18			use SilverStripe\Forms\HeaderField;
19			use SilverStripe\ORM\DB;
20			use SilverStripe\ORM\FieldType\DBDatetime;
21			use SilverStripe\SiteConfig\SiteConfig;
22			use Sunnysideup\SimpleTemplateCaching\Model\ObjectsUpdated;
23
24			/**
25			* Class \Sunnysideup\SimpleTemplateCaching\Extensions\SimpleTemplateCachingSiteConfigExtension.
26			*
27			* @property SiteConfig\|SimpleTemplateCachingSiteConfigExtension $owner
28			* @property bool $HasCaching
29			* @property int $PublicCacheDurationInSeconds
30			* @property bool $RecordCacheUpdates
31			* @property string $CacheKeyLastEdited
32			* @property string $ClassNameLastEdited
33			*/
34			class SimpleTemplateCachingSiteConfigExtension extends Extension
35			{
36			private const MAX_OBJECTS_UPDATED = 1000;
37
38			private static string $image_cache_directive = '
39			<IfModule mod_headers.c>
40			<FilesMatch "\.(jpg\|jpeg\|png\|gif\|webp\|svg\|avif)$">
41			Header set Cache-Control "public, max-age=86400"
42			</FilesMatch>
43			</IfModule>
44			';
45
46			private static string $css_and_js_cache_directive = '
47			<IfModule mod_headers.c>
48			<FilesMatch "\.(js\|css)$">
49			Header set Cache-Control "public, max-age=86400"
50			</FilesMatch>
51			</IfModule>
52			';
53
54			private static $db = [
55			'HasCaching' => 'Boolean(1)',
56			'HasPartialCaching' => 'Boolean(1)',
57			'HasResourceCaching' => 'Boolean(1)',
58			'PublicCacheDurationInSeconds' => 'Int',
59			'RecordCacheUpdates' => 'Boolean(0)',
60			'CacheKeyLastEdited' => 'DBDatetime',
61			'ClassNameLastEdited' => 'Varchar(200)',
62			];
63
64			public function updateCMSFields(FieldList $fields)
65			{
66			$owner = $this->getOwner();
67			$name = '[none]';
68			if (class_exists((string) $owner->ClassNameLastEdited)) {
69			$name = Injector::inst()->get($owner->ClassNameLastEdited)->i18n_singular_name();
70			}
71
72			// page caching
73			$fields->addFieldsToTab(
74			'Root.Caching',
75			[
76			HeaderField::create('FullPageCachingHeader', 'Full Page Caching'),
77			CheckboxField::create('HasCaching', 'Allow caching of entire pages?')
78			->setDescription(
79			'You will also need to set up the cache time below for it to be enabled.
80			You can set a default time below, but you can also set the time for individual pages.'
81			),
82			]
83			);
84			if ($owner->HasCaching) {
85			$fields->addFieldsToTab(
86			'Root.Caching',
87			[
88			NumericField::create('PublicCacheDurationInSeconds', 'Cache time for ALL pages')
89			->setDescription(
90			'USE WITH CARE - This will apply caching to ALL pages on the site.
91			Time is in seconds (e.g. 600 = 10 minutes).
92			Cache time on individual pages will override this value set here.
93			The total number of pages on the site with an individual caching time is: ' . Page::get()->filter('PublicCacheDurationInSeconds:GreaterThan', 0)->count()
94			),
95			]
96			);
97			}
98
99			//partial caching
100			$fields->addFieldsToTab(
101			'Root.Caching',
102			[
103			HeaderField::create('PartialCachingHeader', 'Partial Caching'),
104			CheckboxField::create('HasPartialCaching', 'Allow partial template caching?')
105			->setDescription(
106			'This should usually be turned on unless you want to make sure no templates are cached in any part at all.'
107			),
108			]
109			);
110			if ($owner->HasPartialCaching) {
111			$fields->addFieldsToTab(
112			'Root.Caching',
113			[
114			CheckboxField::create('RecordCacheUpdates', 'Keep a record of what is being changed?')
115			->setDescription(
116			'To work out when the cache is being cleared,
117			you can keep a record of the last ' . self::MAX_OBJECTS_UPDATED . ' records changed.
118			Only turn this on temporarily for tuning purposes.'
119			),
120			]
121			);
122			if ($this->getOwner()->RecordCacheUpdates) {
123			$fields->addFieldsToTab(
124			'Root.Caching',
125			[
126
127			ReadonlyField::create('CacheKeyLastEditedNice', 'Last database change', $owner->dbObject('CacheKeyLastEdited')->ago())
128			->setDescription(
129			'The frontend template cache will be invalidated every time this value changes.
130			The value changes every time anything is changed in the database.'
131			),
132			ReadonlyField::create('ClassNameLastEditedNice', 'Last record updated', $name)
133			->setDescription('The last record to invalidate the cache.'),
134
135			GridField::create(
136			'ObjectsUpdated',
137			'Last ' . self::MAX_OBJECTS_UPDATED . ' records updated',
138			ObjectsUpdated::get()->limit(self::MAX_OBJECTS_UPDATED),
139			GridFieldConfig_RecordViewer::create()
140			)
141			->setDescription(
142			'
143			This is a list of the last ' . self::MAX_OBJECTS_UPDATED . ' records updated.
144			It is used to track changes to the database.
145			It includes: ' . ObjectsUpdated::classes_edited()
146			),
147			]
148			);
149			}
150			}
151			// resource caching
152			$fields->addFieldsToTab(
153			'Root.Caching',
154			[
155			HeaderField::create('ResourceCachingHeader', 'Resource Caching'),
156			CheckboxField::create('HasResourceCaching', 'Allow caching of resources (e.g. images, styles, etc.). ')
157			->setDescription(
158			'This will add cache control headers to your .htaccess file for images, styles, and scripts.
159			This will help with performance, but once cached, a cache can not be cleared without changing the file name.'
160			),
161			]
162			);
163			}
164
165			public static function site_cache_key(): string
166			{
167			$obj = SiteConfig::current_site_config();
168			if ($obj->HasPartialCaching) {
169			return 'ts_' . strtotime((string) $obj->CacheKeyLastEdited);
170			}
171
172			return 'ts_' . time();
173			}
174
175			public static function update_cache_key(?string $className = '')
176			{
177			// important - avoid endless loop!
178			if (SiteConfig::get()->exists()) {
179			$howOldIsIt = DB::query('SELECT Created FROM SiteConfig LIMIT 1')->value();
180			if ($howOldIsIt && strtotime((string) $howOldIsIt) > strtotime('-5 minutes')) {
181			return;
182			}
183			} else {
184			return;
185			}
186			try {
187			$obj = SiteConfig::current_site_config();
188			if ($obj->HasPartialCaching) {
189			DB::query('
190			UPDATE "SiteConfig"
191			SET
192			"CacheKeyLastEdited" = \'' . DBDatetime::now()->Rfc2822() . '\',
193			"ClassNameLastEdited" = \'' . addslashes((string) $className) . '\'
194			WHERE ID = ' . $obj->ID . '
195			LIMIT 1
196			;');
197			if ($obj->RecordCacheUpdates) {
198			$recordId = Injector::inst()
199			->create(ObjectsUpdated::class, ['ClassNameLastEdited' => $className])
200			->write();
201			DB::query('DELETE FROM "ObjectsUpdated" WHERE "ID" < ' . (int) ($recordId - self::MAX_OBJECTS_UPDATED));
202			}
203			} else {
204			DB::query('TRUNCATE "ObjectsUpdated";');
205			}
206			} catch (Exception $e) {
207			DB::query('
208			UPDATE "SiteConfig"
209			SET
210			"CacheKeyLastEdited" = \'' . DBDatetime::now()->Rfc2822() . '\',
211			"ClassNameLastEdited" = \'ERROR\'
212			WHERE ID = ' . $obj->ID . '
213			LIMIT 1
214			;');
215			}
216			}
217
218			public function requireDefaultRecords()
219			{
220			$currentSiteConfig = SiteConfig::current_site_config();
221			if ((int) SiteConfig::get()->count() > 100) {
222			if ($currentSiteConfig) {
			0 ignored issues – show introduced 2023-10-25 03:03 UTC by Report Bug Copy Issue Report `$currentSiteConfig` is of type `SilverStripe\SiteConfig\SiteConfig`, thus it always evaluated to `true`. Loading history...
223			DB::alteration_message('Deleting all SiteConfig records except for the current one.', 'deleted');
224			DB::query('DELETE FROM "SiteConfig" WHERE ID <> ' . $currentSiteConfig->ID);
225			}
226			}
227			foreach (
228			[
229			'IMAGE_CACHE_DIRECTIVE' => $currentSiteConfig->config()->get('image_cache_directive'),
230			'CSS_JS_CACHE_DIRECTIVE' => $currentSiteConfig->config()->get('css_and_js_cache_directive'),
231			] as $key => $value
232			) {
233			if (! $currentSiteConfig->HasResourceCaching) {
234			$value = '';
235			}
236			$this->updateHtaccess($key, $value);
237			}
238			}
239
240			protected function updateHtaccess(string $code, string $toAdd)
241			{
242			$htaccessPath = Controller::join_links(Director::publicFolder(), '.htaccess');
243			$htaccessContent = file_get_contents($htaccessPath);
244			$originalContent = $htaccessContent;
245
246			// Define start and end comments
247			$startComment = PHP_EOL . "# auto add start " . $code . PHP_EOL;
248			$endComment = PHP_EOL . "# auto add end " . $code . PHP_EOL;
249
250			// Full content to replace or add
251			$toAddFull = $startComment . $toAdd . $endComment;
252
253			// Check if the section already exists
254			$pattern = "/" . preg_quote($startComment, '/') . ".*?" . preg_quote($endComment, '/') . "/s";
255			if (preg_match($pattern, $htaccessContent)) {
256			// Replace existing content between the start and end comments
257			$htaccessContent = preg_replace($pattern, $toAddFull, $htaccessContent);
258			} else {
259			// Prepend the new content if not found
260			$htaccessContent = $toAddFull . $htaccessContent;
261			}
262			if ($originalContent !== $htaccessContent) {
263			// Save the updated .htaccess file
264			DB::alteration_message('Updating .htaccess file with ' . $code . ' cache directive', 'created');
265			file_put_contents($htaccessPath, $htaccessContent);
266			}
267			}
268			}
269

sunnysideup / silverstripe-simple-template-caching

Push — master ( 7d4e8a...625645 )

update_cache_key() B

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