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    copied!<p>I guess the real answer here is probably that there's no easy way to do this at the moment. I've raised a <a href="http://dev.plone.org/plone/ticket/11990" rel="nofollow">Plone bug to allow max-age to be overriden with moderateCaching</a></p> <p>So here's my solution, that works, but seems a lot of work compared to being able to override the default max age on moderate caching. I define my own caching operation, that extends plone.app.caching.operations.default.moderateCaching:</p> <pre class="lang-python prettyprint-override"><code>class CacheInApache(ModerateCaching): """ Apache won't cache a response if max-age cache control is 0. Override ModerateCaching and set it to 1 second. """ classProvides(ICachingOperationType) title = _(u"Cache in Apache") description = _(u"Moderate caching for Plone behind Apache. max-age set to 1") prefix = 'cacheInApache' maxage = 1 </code></pre> <p>Register this in configure.zcml</p> <pre class="lang-xml prettyprint-override"><code>&lt;adapter factory=".operation.CacheInApache" name="cacheInApache" /&gt; &lt;utility component=".operation.CacheInApache" name="cacheInApache" /&gt; </code></pre> <p>Then in my generic setup profile registry.xml I configure my types to use it and define its fields.</p> <pre class="lang-xml prettyprint-override"><code>&lt;record name="plone.caching.interfaces.ICacheSettings.operationMapping"&gt; &lt;value purge="False"&gt; &lt;element key="plone.resource"&gt;plone.app.caching.strongCaching&lt;/element&gt; &lt;element key="plone.stableResource"&gt;plone.app.caching.strongCaching&lt;/element&gt; &lt;element key="plone.content.itemView"&gt;cacheInApache&lt;/element&gt; &lt;element key="plone.content.feed"&gt;cacheInApache&lt;/element&gt; &lt;element key="plone.content.folderView"&gt;cacheInApache&lt;/element&gt; &lt;element key="plone.content.file"&gt;cacheInApache&lt;/element&gt; &lt;/value&gt; &lt;/record&gt; &lt;record name="cacheInApache.smaxage"&gt; &lt;field type="plone.registry.field.Int"&gt; &lt;title&gt;Shared maximum age&lt;/title&gt; &lt;description&gt;Time (in seconds) to cache the response in the caching proxy&lt;/description&gt; &lt;required&gt;False&lt;/required&gt; &lt;/field&gt; &lt;value&gt;86400&lt;/value&gt; &lt;/record&gt; &lt;record name="cacheInApache.etags"&gt; &lt;field type="plone.registry.field.Tuple"&gt; &lt;title&gt;ETags&lt;/title&gt; &lt;description&gt;A list of ETag component names to include&lt;/description&gt; &lt;value_type type="plone.registry.field.ASCIILine" /&gt; &lt;required&gt;False&lt;/required&gt; &lt;/field&gt; &lt;value&gt; &lt;/value&gt; &lt;/record&gt; &lt;record name="cacheInApache.lastModified"&gt; &lt;field type="plone.registry.field.Bool"&gt; &lt;title&gt;Last-modified validation&lt;/title&gt; &lt;description&gt;Turn on Last-Modified headers&lt;/description&gt; &lt;required&gt;False&lt;/required&gt; &lt;/field&gt; &lt;value&gt;False&lt;/value&gt; &lt;/record&gt; &lt;record name="cacheInApache.ramCache"&gt; &lt;field type="plone.registry.field.Bool"&gt; &lt;title&gt;RAM cache&lt;/title&gt; &lt;description&gt;Turn on caching in Zope memory&lt;/description&gt; &lt;required&gt;False&lt;/required&gt; &lt;/field&gt; &lt;value&gt;False&lt;/value&gt; &lt;/record&gt; &lt;record name="cacheInApache.vary"&gt; &lt;field type="plone.registry.field.ASCIILine"&gt; &lt;title&gt;Vary&lt;/title&gt; &lt;description&gt;Name(s) of HTTP headers that must match for the caching proxy to return a cached response&lt;/description&gt; &lt;required&gt;False&lt;/required&gt; &lt;/field&gt; &lt;value&gt;&lt;/value&gt; &lt;/record&gt; &lt;record name="cacheInApache.anonOnly"&gt; &lt;field type="plone.registry.field.Bool"&gt; &lt;title&gt;Only cache for anonymous users&lt;/title&gt; &lt;description&gt;Ensure logging users always get a fresh page. Note that if you are caching pages in a proxy cache, you'll still need to use a Vary response header to keep anonymous and authenticated content separate.&lt;/description&gt; &lt;required&gt;False&lt;/required&gt; &lt;/field&gt; &lt;value&gt;False&lt;/value&gt; &lt;/record&gt; </code></pre> <p>You can also define some type specific overrides.</p> <p>If anyone can suggest a simpler way to achieve this then please let me know </p>
 

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