Title: Purgely
Author: Zack Tollman
Published: <strong>11 januari 2016</strong>
Last modified: 15 juni 2016

---

Sök tillägg

Det här tillägget **har inte testats med någon av de 3 senaste huvudversionerna 
av WordPress**. Det kanske inte längre underhålls och kan ha kompatibilitetsproblem
när det används tillsammans med nyare versioner av WordPress.

![](https://s.w.org/plugins/geopattern-icon/purgely.svg)

# Purgely

 Av [Zack Tollman](https://profiles.wordpress.org/tollmanz/)

[Ladda ner](https://downloads.wordpress.org/plugin/purgely.1.0.1.zip)

 * [Detaljer](https://sv.wordpress.org/plugins/purgely/#description)
 * [Recensioner](https://sv.wordpress.org/plugins/purgely/#reviews)
 *  [Installation](https://sv.wordpress.org/plugins/purgely/#installation)
 * [Utveckling](https://sv.wordpress.org/plugins/purgely/#developers)

 [Support](https://wordpress.org/support/plugin/purgely/)

## Beskrivning

Purgely manages caching behavior for WordPress sites using Fastly as an edge caching
solution. The plugin exposes useful
 APIs to help control how pages on your site
are cached, as well as provides sane defaults to make this a plug and play solution
for Fastly cache management.

The plugin handles the following:

 * Sets the `Surrogate-Control` header to control the expiration time for pages
 * Sets the `stale-while-revalidate` and `stale-if-error` `Cache-Control` directives
   for managing these special Fastly
    behaviors
 * Set groups of `Surrogate-Keys` for all pages to provide purging across multiple
   pages with one command
 * Provides invalidation of posts and related posts on save

Each of these items have sane defaults with ways to override them and configure 
them to your liking.

Additionally, the plugin exposes a WP CLI command to provide more flexible purging
options.

## Installation

### Manual installation

 1. Upload the plugin directory to `/wp-content/plugins/`
 2. Activate the plugin through the ’Plugins’ menu in WordPress

### WP CLI installation

 1. Run `wp plugin install --activate purgely`

### Konfiguration

Purgely provides a number of constants that can be used to control the behavior 
of the plugin and Fastly’s cache. Users
 who wish to change these values should 
define the constants in `wp-config.php`.

After installing, you should define `PURGELY_FASTLY_KEY` and `PURGELY_FASTLY_SERVICE_ID`
in `wp-config.php`. The plugin will work without them; however, you will not be 
able to purge by surrogate key or purge all without configuring these options. To
define them copy the following code to your `wp-config.php` file, update the key
to use your key, and the service ID to match the fastly service you’re using:

    ```
    `
    ```

define( ’PURGELY_FASTLY_KEY’, ’39c4820390d8f050giweda50268c7583′ );
 define( ’PURGELY_FASTLY_SERVICE_ID’,’
abcdefghijklmn1234567890’ ); `

Configuring other constants is similarly done by defining the constant in `wp-config.
php`. All constants are explained
 below.

**PURGELY_API_ENDPOINT**

Defines the API endpoint for Fastly. This should not usually need to be changed,
but is added in the event that Fastly
 decides to use a different API endpoint, 
or if there is a need for a user to have a special endpoint.

_default: (string) ”_

**PURGELY_ALLOW_PURGE_ALL**

Determines whether or not the plugin can issue a purge all request. Purge all can
have dire consequences for a website.
 As such, this behavior is disabled by default.
If can be turned on by setting this value to `true`.

_default: (bool) false_

**PURGELY_ENABLE_STALE_WHILE_REVALIDATE**

Determines whether or not the plugin sets the `stale-while-revalidate` directive
for the `Cache-Control` header. Setting
 this value to `false` will turn off the`
stale-while-revalidate` behavior. Note that you can manually control this behavior
via the functions exposed in the plugin regardless of this configuration option.
This option only controls the default plugin behavior.

_default: (bool) true_

**PURGELY_STALE_WHILE_REVALIDATE_TTL**

Sets the TTL for the `stale-while-revalidate` directive in seconds. The value instructs
Fastly to continue serving stale
 content while new content is generated for the
duration of the value that is set.

_default: (int) 86400_

**PURGELY_ENABLE_STALE_IF_ERROR**

Determines whether or not the plugin sets the `stale-if-error` directive for the`
Cache-Control` header. Setting
 this value to `false` will turn off the `stale-if-
error` behavior. Note that you can manually control this behavior via the functions
exposed in the plugin regardless of this configuration option. This option only 
controls the default plugin behavior.

_default: (bool) true_

**PURGELY_STALE_IF_ERROR_TTL**

Sets the TTL for the `stale-if-error` directive in seconds. The value instructs 
Fastly to continue serving stale
 content while the origin site is serving an error
for the duration of the value that is set.

_default: (int) 86400_

**PURGELY_SURROGATE_CONTROL_TTL**

Sets the TTL for the `Surrogate-Control` header in seconds. This value is the default
TTL for all pages on your site,
 unless it is cached within the app. Changing this
value changes the value for the whole site.

_default: (int) 300_

## Recensioner

![](https://secure.gravatar.com/avatar/778914d549e545a18f92dec2a5db45137baead95b17e472738a56c42a1627a21?
s=60&d=retro&r=g)

### 󠀁[Excellent cache handling](https://wordpress.org/support/topic/excellent-cache-handling/)󠁿

 [eightbits](https://profiles.wordpress.org/eightbits/) 3 september 2016

Sets surrogate keys based on all posts. Saved me a lot of time.

 [ Läs 1 betyg ](https://wordpress.org/support/plugin/purgely/reviews/)

## Bidragsgivare och utvecklare

”Purgely” är programvara med öppen källkod. Följande personer har bidragit till 
detta tillägg.

Bidragande personer

 *   [ Zack Tollman ](https://profiles.wordpress.org/tollmanz/)

[Översätt ”Purgely” till ditt språk.](https://translate.wordpress.org/projects/wp-plugins/purgely)

### Intresserad av programutveckling?

[Läs programkoden](https://plugins.trac.wordpress.org/browser/purgely/), kika på
[SVN-filförvaret](https://plugins.svn.wordpress.org/purgely/) eller prenumerera 
på [utvecklarloggen](https://plugins.trac.wordpress.org/log/purgely/) via [RSS](https://plugins.trac.wordpress.org/log/purgely/?limit=100&mode=stop_on_copy&format=rss).

## Ändringslogg

#### 1.0.1

 * Update key saniziation to allow all capital letters, not just A-B.

#### 1.0.0

 * Initial release.

## Meta

 *  Version **1.0.1**
 *  Senast uppdaterat **10 år sedan**
 *  Aktiva installationer **10+**
 *  WordPress-version ** 4.2.0 eller senare **
 *  Testat upp till **4.3.34**
 *  Språk
 * [English (US)](https://wordpress.org/plugins/purgely/)
 * Etiketter
 * [cache invalidation](https://sv.wordpress.org/plugins/tags/cache-invalidation/)
   [caching](https://sv.wordpress.org/plugins/tags/caching/)[fastly](https://sv.wordpress.org/plugins/tags/fastly/)
   [page cache](https://sv.wordpress.org/plugins/tags/page-cache/)
 *  [Avancerad vy](https://sv.wordpress.org/plugins/purgely/advanced/)

## Betyg

 5 av 5 stjärnor.

 *  [  1 5-stjärnig recension     ](https://wordpress.org/support/plugin/purgely/reviews/?filter=5)
 *  [  0 4-stjärniga recensioner     ](https://wordpress.org/support/plugin/purgely/reviews/?filter=4)
 *  [  0 3-stjärniga recensioner     ](https://wordpress.org/support/plugin/purgely/reviews/?filter=3)
 *  [  0 2-stjärniga recensioner     ](https://wordpress.org/support/plugin/purgely/reviews/?filter=2)
 *  [  0 1-stjärniga recensioner     ](https://wordpress.org/support/plugin/purgely/reviews/?filter=1)

[Your review](https://wordpress.org/support/plugin/purgely/reviews/#new-post)

[Se alla recensioner](https://wordpress.org/support/plugin/purgely/reviews/)

## Bidragande personer

 *   [ Zack Tollman ](https://profiles.wordpress.org/tollmanz/)

## Support

Har du något att säga? Behöver du hjälp?

 [Visa supportforum](https://wordpress.org/support/plugin/purgely/)