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Contents
# See the Pagy documentation: https://ddnexus.github.io/pagy/extras/countless
# frozen_string_literal: true
require 'pagy/countless'
class Pagy # :nodoc:
DEFAULT[:countless_minimal] = false
# Paginate without the need of any count, saving one query per rendering
module CountlessExtra
private
# Return Pagy object and items
def pagy_countless(collection, vars = {})
pagy = Countless.new(pagy_countless_get_vars(collection, vars))
[pagy, pagy_countless_get_items(collection, pagy)]
end
# Sub-method called only by #pagy_countless: here for easy customization of variables by overriding
def pagy_countless_get_vars(_collection, vars)
pagy_set_items_from_params(vars) if defined?(ItemsExtra)
vars[:page] ||= params[vars[:page_param] || DEFAULT[:page_param]]
vars
end
# Sub-method called only by #pagy_countless: here for easy customization of record-extraction by overriding
# You may need to override this method for collections without offset|limit
def pagy_countless_get_items(collection, pagy)
return collection.offset(pagy.offset).limit(pagy.items) if pagy.vars[:countless_minimal]
fetched = collection.offset(pagy.offset).limit(pagy.items + 1).to_a # eager load items + 1
pagy.finalize(fetched.size) # finalize the pagy object
fetched[0, pagy.items] # ignore eventual extra item
end
end
Backend.prepend CountlessExtra
end
Version data entries
36 entries across 36 versions & 1 rubygems