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mastodon/app/lib/admin/metrics/measure/instance_followers_measure.rb

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# frozen_string_literal: true
class Admin::Metrics::Measure::InstanceFollowersMeasure < Admin::Metrics::Measure::BaseMeasure
include Admin::Metrics::Measure::QueryHelper
def self.with_params?
true
end
def key
'instance_followers'
end
def total_in_time_range?
false
end
protected
def perform_total_query
domain = params[:domain]
domain = Instance.by_domain_and_subdomains(params[:domain]).select(:domain) if params[:include_subdomains]
Follow.joins(:account).merge(Account.where(domain: domain)).count
end
def perform_previous_total_query
nil
end
def sql_array
[sql_query_string, { start_at: @start_at, end_at: @end_at, domain: params[:domain] }]
end
def sql_query_string
<<~SQL.squish
SELECT axis.*, (
WITH new_followers AS (
SELECT follows.id
FROM follows
INNER JOIN accounts ON follows.account_id = accounts.id
WHERE date_trunc('day', follows.created_at)::date = axis.period
AND #{account_domain_sql(params[:include_subdomains])}
)
SELECT count(*) FROM new_followers
) AS value
FROM (
SELECT generate_series(date_trunc('day', :start_at::timestamp)::date, date_trunc('day', :end_at::timestamp)::date, interval '1 day') AS period
) AS axis
SQL
end
def time_period
(@start_at.to_date..@end_at.to_date)
end
def previous_time_period
((@start_at.to_date - length_of_period)..(@end_at.to_date - length_of_period))
end
def params
@params.permit(:domain, :include_subdomains)
end
end