I'm using codeigniter to create a web app. I'm creating the drop down menus in the header. These are included on every page using load->view(). To populate the menus some quite complex SQL is used. The contents on the menu will change infrequently (once/twice a week), whereas the rest of the data on the page is constantly changing.
Therefore I don't want the overhead of running this SQL everytime a page is loaded. I looked at using CI caching but its on a page level. I really only want to cache a small segment.
What do you think the best approach to this is? I thought about writing this to a text file, but then you'd have to manually run the code to write this every so often.
Another good caching library I have found is from Phil Sturgeon. http://github.com/philsturgeon/codeigniter-cache
It allows caching models, libraries, or just partial caching like you describe.
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