blockscout/apps/explorer/priv/repo/migrations/20180117221921_create_addre...

defmodule Explorer.Repo.Migrations.CreateAddress do
  use Ecto.Migration

  def change do
    create table(:addresses, primary_key: false) do
      add(:fetched_balance, :numeric, precision: 100)
      add(:fetched_balance_block_number, :bigint)
      add(:hash, :bytea, null: false, primary_key: true)
      add(:contract_code, :bytea, null: true)

      timestamps(null: false, type: :utc_datetime)
    end
  end
end
View additional fields on the Transaction page. 7 years ago			`defmodule Explorer.Repo.Migrations.CreateAddress do`
			`use Ecto.Migration`

			`def change do`
WIP Hash primary keys + Everything compiles + Explorer tests pass + ExplorerWeb tests pass + Hashes are an Ecto.Type - Indexers are still broke, but docs are bulding up 7 years ago			`create table(:addresses, primary_key: false) do`
Add address balance fetching 7 years ago			`add(:fetched_balance, :numeric, precision: 100)`
fetched_balance_block_number instead of fetched_balance_at Fixes #243 Instead of getting the address balance at the latest block and recording the timestamp of the insert, which is only loosely correlated with even the latest block's timestamp on-chain, use the block number for the last time an address was used in the indexed address foreign keys in the chain: * blocks * miner_hash * internal_transactions * created_contract_address_hash * from_address_hash * to_address_hash * logs * address_hash * transactions * from_address_hash * to_address_hash To gather `fetched_balance_block_number` on reboot, `Explorer.Chain.stream_unfetched_addresses` queries across the above columns for the `MAX(blocks.number)`, which is used in `Explorer.Indexer.AddressBalanceFetcher.init/2`. During indexing, `Explorer.Indexer.AddressBalanceFetcher.async_fetch_balances/1` now requires a list of `%{block_number: Block.block_number(), hash: Hash.Truncated.t()}` instead of list of `Hash.Truncated.t()`. Having a `block_number` available for all importable entities's addresses required changing `Explorer.Indexer.AddressExtraction` to extract the `block_number` too. The use of `insert` in the factories was making tests that show the count not make sense, so the factories were switched to `build` because it means only the exact count is created when a default value is overridden. This does, unfortunately, mean that `params_for(factory)` no longer generates foreign keys and they must be set explicitly OR the association passed instead of the foreign key. Allow nil extracted fetched_balance_block_number when pending transaction NOTE: This is a database drop and reindex change. 7 years ago			`add(:fetched_balance_block_number, :bigint)`
WIP Hash primary keys + Everything compiles + Explorer tests pass + ExplorerWeb tests pass + Hashes are an Ecto.Type - Indexers are still broke, but docs are bulding up 7 years ago			`add(:hash, :bytea, null: false, primary_key: true)`
Store the Contract code in the Address Includes a new column in Addresses table to store the Contract bytecode. Having this code means that an Adress is a contract. We're gathering the attributes (`created_contract_code` and `created_contract_address_hash`) that represent a Contract creation in the Address fetching (during the indexing) so an Address can be created in the database with them. 7 years ago			`add(:contract_code, :bytea, null: true)`
WIP * Fix bug when restarting index from lst block * Include tests for block sequencer * Check for new blocks periodically after indexing Co-authored-by: Alex Garibay <alex@alexgaribay.com> Co-authored-by: Luke Imhoff <luke.imhoff@dockyard.com> 7 years ago
Use :utc_datetime and DateTime for timestamps 7 years ago			`timestamps(null: false, type: :utc_datetime)`
View additional fields on the Transaction page. 7 years ago			`end`
			`end`
			`end`