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Contents
# See Pagy::Backend API documentation: https://ddnexus.github.io/pagy/api/backend
# frozen_string_literal: true
class Pagy
# Defines a few generic methods to paginate an ORM collection out of the box,
# or any collection by overriding pagy_get_items and/or pagy_get_vars in your controller
# See also the extras if you need specialized methods to paginate Arrays or other collections
module Backend
private # the whole module is private so no problem with including it in a controller
# Return Pagy object and items
def pagy(collection, vars={})
pagy = Pagy.new(pagy_get_vars(collection, vars))
[ pagy, pagy_get_items(collection, pagy) ]
end
# Sub-method called only by #pagy: here for easy customization of variables by overriding
def pagy_get_vars(collection, vars)
pagy_set_items_from_params(vars) if defined?(UseItemsExtra)
vars[:count] ||= (c = collection.count(:all)).is_a?(Hash) ? c.size : c
vars[:page] ||= params[ vars[:page_param] || VARS[:page_param] ]
vars
end
# Sub-method called only by #pagy: here for easy customization of record-extraction by overriding
def pagy_get_items(collection, pagy)
# This should work with ActiveRecord, Sequel, Mongoid...
collection.offset(pagy.offset).limit(pagy.items)
end
end
end
Version data entries
16 entries across 16 versions & 2 rubygems