What are filters? and how many types of filters are there
in ruby
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Answer Posted / raja
Filters enable controllers to run shared pre and post
processing code for its actions.
Filter methods are macro-style, that is, they appear at the
top of your controller method, inside the class context,
before method definitions.
the below types of filters in ruby
before_filter,
after_filter,
prepend_before_filter,
prepend_after_filter,
around_filter
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