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InterviewSolution
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What Are Filters? And How Many Types Of Filters Are There In Ruby ? |
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Answer» Filters are methods that are run before, after or "around" a CONTROLLER action. Filters are inherited, so if you set a filter on ApplicationController, it will be run on EVERY controller in your application. Filter can take ONE of three FORMS: method reference (symbol), external class, or INLINE method (proc). after_filter append_after_filter append_around_filter append_before_filter around_filter before_filter filter_chain prepend_after_filter prepend_around_filter prepend_before_filter skip_after_filter skip_before_filter skip_filterFilters are methods that are run before, after or "around" a controller action. Filters are inherited, so if you set a filter on ApplicationController, it will be run on every controller in your application. Filter can take one of three forms: method reference (symbol), external class, or inline method (proc). |
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