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perf(holdings): optimize provider cost basis snapshot lookup

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Filter provider cost basis snapshots by the security IDs present in the
current holdings set to reduce the amount of data loaded into memory.
This commit is contained in:
CrossDrain
2026-05-18 12:57:04 +03:00
parent acf0bca08b
commit 694463dd5d
1 changed files with 12 additions and 8 deletions
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20
app/models/holding/materializer.rb
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@@ -214,14 +214,18 @@ class Holding::Materializer
end
def provider_cost_basis_snapshots
@provider_cost_basis_snapshots ||= account.holdings
.where.not(account_provider_id: nil)
.where.not(cost_basis: nil)
.order(:date)
.pluck(:security_id, :currency, :date, :cost_basis)
.each_with_object(Hash.new { |h, k| h[k] = [] }) do |(security_id, currency, date, cost_basis), memo|
memo[security_id] << [ date, cost_basis, currency ]
end
@provider_cost_basis_snapshots ||= begin
ids = @holdings.map(&:security_id).uniq
account.holdings
.where.not(account_provider_id: nil)
.where.not(cost_basis: nil)
.where(security_id: ids)
.order(:date) # ascending required: carry_forward_provider_cost_basis scans and breaks on snap_date > holding.date
.pluck(:security_id, :currency, :date, :cost_basis)
.each_with_object(Hash.new { |h, k| h[k] = [] }) do |(security_id, currency, date, cost_basis), memo|
memo[security_id] << [ date, cost_basis, currency ]
end
end
end
def purge_stale_holdings