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25 lines
1.2 KiB
Markdown
25 lines
1.2 KiB
Markdown
Caching
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=======
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Caching is used to speed up a call to [`display()`](./api-functions/api-display.md) or
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[`fetch()`](./api-functions/api-fetch.md) by saving its output to a file. If a cached
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version of the call is available, that is displayed instead of
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regenerating the output. Caching can speed things up tremendously,
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especially templates with longer computation times. Since the output of
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[`display()`](./api-functions/api-display.md) or [`fetch()`](./api-functions/api-fetch.md) is cached, one
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cache file could conceivably be made up of several template files,
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config files, etc.
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Since templates are dynamic, it is important to be careful what you are
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caching and for how long. For instance, if you are displaying the front
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page of your website that does not change its content very often, it
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might work well to cache this page for an hour or more. On the other
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hand, if you are displaying a page with a timetable containing new
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information by the minute, it would not make sense to cache this page.
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## Table of contents
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- [Setting Up Caching](./caching/caching-setting-up.md)
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- [Multiple Caches Per Page](./caching/caching-multiple-caches.md)
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- [Controlling Cacheability of Output](./caching/caching-groups.md)
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- [Custom Cache Implementation](./caching/caching-custom.md)
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