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@ -5,9 +5,9 @@ defmodule Explorer.Etherscan.Logs do |
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""" |
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import Ecto.Query, only: [from: 2, where: 3, subquery: 1, order_by: 3, limit: 2] |
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import Ecto.Query, only: [from: 2, where: 3, subquery: 1] |
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alias Explorer.Chain.Log |
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alias Explorer.Chain.{Block, InternalTransaction, Log, Transaction} |
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alias Explorer.Repo |
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@base_filter %{ |
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@ -67,33 +67,99 @@ defmodule Explorer.Etherscan.Logs do |
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""" |
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@spec list_logs(map()) :: [map()] |
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def list_logs(filter) do |
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def list_logs(%{address_hash: address_hash} = filter) when not is_nil(address_hash) do |
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prepared_filter = Map.merge(@base_filter, filter) |
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query = |
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from( |
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l in Log, |
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inner_join: t in assoc(l, :transaction), |
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inner_join: b in assoc(t, :block), |
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where: b.number >= ^prepared_filter.from_block, |
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where: b.number <= ^prepared_filter.to_block, |
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logs_query = where_topic_match(Log, prepared_filter) |
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internal_transaction_log_query = |
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from(internal_transaction in InternalTransaction, |
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join: transaction in assoc(internal_transaction, :transaction), |
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join: log in ^logs_query, |
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on: log.transaction_hash == internal_transaction.transaction_hash, |
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where: internal_transaction.block_number >= ^prepared_filter.from_block, |
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where: internal_transaction.block_number <= ^prepared_filter.to_block, |
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where: internal_transaction.to_address_hash == ^address_hash, |
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or_where: internal_transaction.from_address_hash == ^address_hash, |
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or_where: internal_transaction.created_contract_address_hash == ^address_hash, |
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select: |
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merge(map(l, ^@log_fields), %{ |
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gas_price: t.gas_price, |
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gas_used: t.gas_used, |
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transaction_index: t.index, |
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block_number: b.number, |
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block_timestamp: b.timestamp |
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merge(map(log, ^@log_fields), %{ |
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gas_price: transaction.gas_price, |
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gas_used: transaction.gas_used, |
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transaction_index: transaction.index, |
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block_number: transaction.block_number |
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}) |
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) |
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query |
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|> subquery() |
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|> where_address_match(prepared_filter) |
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|> where_topic_match(prepared_filter) |
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|> order_by([l], l.block_number) |
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|> limit(1_000) |
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|> Repo.all() |
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all_transaction_logs_query = |
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from(transaction in Transaction, |
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join: log in ^logs_query, |
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on: log.transaction_hash == transaction.hash, |
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where: transaction.block_number >= ^prepared_filter.from_block, |
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where: transaction.block_number <= ^prepared_filter.to_block, |
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where: transaction.to_address_hash == ^address_hash, |
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or_where: transaction.from_address_hash == ^address_hash, |
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or_where: transaction.created_contract_address_hash == ^address_hash, |
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select: |
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merge(map(log, ^@log_fields), %{ |
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gas_price: transaction.gas_price, |
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gas_used: transaction.gas_used, |
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transaction_index: transaction.index, |
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block_number: transaction.block_number |
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}), |
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union: ^internal_transaction_log_query |
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) |
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query_with_blocks = |
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from(log_transaction_data in subquery(all_transaction_logs_query), |
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join: block in Block, |
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on: block.number == log_transaction_data.block_number, |
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on: block.consensus == true, |
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where: log_transaction_data.address_hash == ^address_hash, |
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order_by: block.number, |
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limit: 1000, |
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select_merge: %{ |
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block_timestamp: block.timestamp |
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} |
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) |
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Repo.all(query_with_blocks) |
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end |
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# Since address_hash was not present, we know that a |
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# topic filter has been applied, and th |
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def list_logs(filter) do |
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prepared_filter = Map.merge(@base_filter, filter) |
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logs_query = where_topic_match(Log, prepared_filter) |
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block_transaction_query = |
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from(transaction in Transaction, |
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join: block in assoc(transaction, :block), |
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on: block.number >= ^prepared_filter.from_block, |
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on: block.number <= ^prepared_filter.to_block, |
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on: block.consensus == true, |
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select: %{ |
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transaction_hash: transaction.hash, |
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gas_price: transaction.gas_price, |
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gas_used: transaction.gas_used, |
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transaction_index: transaction.index, |
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block_number: block.number, |
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block_timestamp: block.timestamp |
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} |
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) |
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query_with_block_transaction_data = |
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from(log in logs_query, |
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join: block_transaction_data in subquery(block_transaction_query), |
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on: block_transaction_data.transaction_hash == log.transaction_hash, |
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order_by: block_transaction_data.block_number, |
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limit: 1000, |
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select: block_transaction_data, |
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select_merge: map(log, ^@log_fields) |
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) |
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Repo.all(query_with_block_transaction_data) |
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end |
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@topics [ |
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@ -112,12 +178,6 @@ defmodule Explorer.Etherscan.Logs do |
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topic2_3_opr: {:third_topic, :fourth_topic} |
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} |
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defp where_address_match(query, %{address_hash: address_hash}) when not is_nil(address_hash) do |
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where(query, [l], l.address_hash == ^address_hash) |
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end |
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defp where_address_match(query, _), do: query |
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defp where_topic_match(query, filter) do |
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case Enum.filter(@topics, &filter[&1]) do |
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[] -> |
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zachdaniel
6 years ago