Submit social housing lettings and sales data (CORE)
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desc "Find and output each group of duplicate rent periods with a total count"
task find_redundant_rent_periods: :environment do
duplicate_groups = OrganisationRentPeriod
.select('organisation_id, rent_period')
.group('organisation_id, rent_period')
.having('COUNT(*) > 1')
duplicate_records = OrganisationRentPeriod
.where(organisation_id: duplicate_groups.map(&:organisation_id), rent_period: duplicate_groups.map(&:rent_period))
duplicate_groups.each do |group|
group_records = duplicate_records.where(organisation_id: group.organisation_id, rent_period: group.rent_period)
group_records.each do |record|
puts "ID: #{record.id}, Organisation ID: #{record.organisation_id}, Rent Period: #{record.rent_period}"
end
puts "----------------------"
end
ids_to_keep = OrganisationRentPeriod
.select('MIN(id) as id')
.group('organisation_id, rent_period')
.having('COUNT(*) > 1')
.map(&:id)
redundant_ids = duplicate_records.pluck(:id) - ids_to_keep
puts "Number of duplicate records: #{redundant_ids.size}"
puts "Number of records to keep: #{ids_to_keep.size}"
end
desc "Delete redundant rent periods"
task delete_duplicate_rent_periods: :environment do
duplicate_groups = OrganisationRentPeriod
.select('organisation_id, rent_period')
.group('organisation_id, rent_period')
.having('COUNT(*) > 1')
duplicate_ids = OrganisationRentPeriod
.where(organisation_id: duplicate_groups.map(&:organisation_id), rent_period: duplicate_groups.map(&:rent_period))
.pluck(:id)
ids_to_keep = OrganisationRentPeriod
.select('MIN(id) as id')
.group('organisation_id, rent_period')
.having('COUNT(*) > 1')
.map(&:id)
redundant_ids = duplicate_ids - ids_to_keep
OrganisationRentPeriod.where(id: redundant_ids).delete_all
puts "Number of deleted duplicate records: #{redundant_ids.size}"
end