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Contents
# frozen_string_literal: true
module Decidim
module Core
# A GraphQL resolver to handle `count` and `metric` queries
class MetricResolver
attr_reader :name
#
# - name: name identifier of metric
# - organization: Decidim::Organization scoping
# - filters: hash of attr - value to filter results
#
def initialize(name, organization, filters = {})
@name = name
@organization = organization
@filters = filters
@group_by = :day
@counter_field = :cumulative
end
def count
resolve.max.try(:last) || 0
end
def history
resolve
end
private
def resolve
return @records if @records
scope
filter
group
sum
@records
end
def scope
@records = Decidim::Metric
.where(metric_type: name, organization:)
end
# Only key name attributes in Decidim::Metric will be applied
def filter
@filters.each do |key, value|
next unless Decidim::Metric.column_names.include? key.to_s
@records = @records.where("#{key}": value)
end
end
def group
@records = @records
.group(group_by)
.order(Arel.sql("#{group_by} DESC").to_s)
end
def sum
@records = @records
.limit(60)
.sum(counter_field)
end
attr_reader :organization, :filters, :group_by, :counter_field
end
end
end
Version data entries
17 entries across 17 versions & 1 rubygems