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require_dependency "renalware"
# Mix this module into a Patient Query object for example in order to include the patient's
# current key pathology and enable sorting on pathology date and value fields using
# ransack's sort_link helper in the view.
#
module Renalware
module PatientPathologyScopes
def with_current_pathology
includes(:current_observation_set)
end
# Define some ransackers to make it easier to sort the table (using sort_link)
# on pathology dates and values. Note it wasn't possible just to use say
# = sort_link(.., "pathology_current_key_observation_sets.cre_observed_at", ..)
# or
# = sort_link(.., :pathology_current_key_observation_set_cre_observed_at", ..)
# as ransack wasn't happy and discarded the sort predicate.
# So here we mix in useful ransackers as short cut to use in sort_link
#
# Example usage:
# = sort_link(<url>, :cre_observed_at, "CRE date")
#
def self.extended(base)
%i(hgb ure cre urr phos pth).each do |code|
base.ransacker(code) { pathology_result_sort_predicate(code) }
base.ransacker(:"#{code}_date") { pathology_date_sort_predicate(code) }
end
%i(egfr).each do |code|
base.ransacker(code) { pathology_result_sort_predicate(code) }
end
end
def self.pathology_result_sort_predicate(column)
Arel.sql(
"cast(values -> '#{column.upcase}' ->> 'result' as float)"
)
end
def self.pathology_date_sort_predicate(column)
Arel.sql(
"cast(values -> '#{column.upcase}' ->> 'observed_at' as date)"
)
end
end
end
Version data entries
9 entries across 9 versions & 1 rubygems