Class: JsonApiFilter::FieldFilters::Pagination

Inherits:
Base
  • Object
show all
Defined in:
lib/json_api_filter/field_filters/pagination.rb

Instance Attribute Summary

Attributes inherited from Base

#association, #scope, #values

Instance Method Summary collapse

Methods inherited from Base

#initialize

Constructor Details

This class inherits a constructor from JsonApiFilter::FieldFilters::Base

Instance Method Details

#predicate ⇒ ActiveRecord_Relation

Returns:

  • (ActiveRecord_Relation) 


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# File 'lib/json_api_filter/field_filters/pagination.rb', line 6

def predicate
  page = values["page"]
  per_page = values["perPage"]
  result = scope
  unless page.nil? || per_page.nil? || per_page == "-1"
    result = result.limit(per_page.to_i)
    result = result.offset((page.to_i - 1) * per_page.to_i)
  end
  result
end