def sequencing_hook(self, db_session, parent_block_data, parent_sequenced_block_data):
session_id = self.event.attributes[0]['value']
if settings.get_versioned_setting('NEW_SESSION_EVENT_HANDLER', self.block.spec_version_id):
self.add_session(db_session, session_id)
else:
self.add_session_old(db_session, session_id)
def process_genesis(self, block):
# Set block time of parent block
child_block = Block.query(self.db_session).filter_by(parent_hash=block.hash).first()
block.set_datetime(child_block.datetime)
# Retrieve genesis accounts
if settings.get_versioned_setting('SUBSTRATE_STORAGE_INDICES', block.spec_version_id) == 'Accounts':
# Get accounts from storage keys
storage_key_prefix = self.substrate.generate_storage_hash(
storage_module='System',
storage_function='Account',
metadata_version=settings.SUBSTRATE_METADATA_VERSION
)
rpc_result = self.substrate.rpc_request(
'state_getKeys',
[storage_key_prefix, block.hash]
).get('result')
# Extract accounts from storage key
genesis_accounts = [storage_key[-64:] for storage_key in rpc_result if len(storage_key) == 162]
for account_id in genesis_accounts:
account_audit = AccountAudit(
account_id=account_id,
block_id=block.id,
extrinsic_idx=None,
event_idx=None,
type_id=settings.ACCOUNT_AUDIT_TYPE_NEW
)
account_audit.save(self.db_session)
elif settings.get_versioned_setting('SUBSTRATE_STORAGE_INDICES', block.spec_version_id) == 'EnumSet':
genesis_account_page_count = self.substrate.get_runtime_state(
module="Indices",
storage_function="NextEnumSet",
block_hash=block.hash
).get('result', 0)
# Get Accounts on EnumSet
block.count_accounts_new = 0
block.count_accounts = 0
for enum_set_nr in range(0, genesis_account_page_count + 1):
genesis_accounts = self.substrate.get_runtime_state(
module="Indices",
storage_function="EnumSet",
params=[enum_set_nr],
block_hash=block.hash
).get('result')
if genesis_accounts:
block.count_accounts_new += len(genesis_accounts)
block.count_accounts += len(genesis_accounts)
for idx, account_id in enumerate(genesis_accounts):
account_audit = AccountAudit(
account_id=account_id.replace('0x', ''),
block_id=block.id,
extrinsic_idx=None,
event_idx=None,
type_id=settings.ACCOUNT_AUDIT_TYPE_NEW
)
account_audit.save(self.db_session)
account_index_id = enum_set_nr * 64 + idx
account_index_audit = AccountIndexAudit(
account_index_id=account_index_id,
account_id=account_id.replace('0x', ''),
block_id=block.id,
extrinsic_idx=None,
event_idx=None,
type_id=settings.ACCOUNT_INDEX_AUDIT_TYPE_NEW
)
account_index_audit.save(self.db_session)
block.save(self.db_session)
# Add hardcoded account like treasury stored in settings
for account_id in settings.SUBSTRATE_TREASURY_ACCOUNTS:
account_audit = AccountAudit(
account_id=account_id,
block_id=block.id,
extrinsic_idx=None,
event_idx=None,
data={'is_treasury': True},
type_id=settings.ACCOUNT_AUDIT_TYPE_NEW
)
account_audit.save(self.db_session)
# Check for sudo accounts
try:
# Update sudo key
sudo_key = self.substrate.get_runtime_state(
module='Sudo',
storage_function='Key',
block_hash=block.hash
).get('result')
account_audit = AccountAudit(
account_id=sudo_key.replace('0x', ''),
block_id=block.id,
extrinsic_idx=None,
event_idx=None,
data={'is_sudo': True},
type_id=settings.ACCOUNT_AUDIT_TYPE_NEW
)
account_audit.save(self.db_session)
except ValueError:
pass
# Create initial session
initial_session_event = NewSessionEventProcessor(
block=block, event=Event(), substrate=self.substrate
)
if settings.get_versioned_setting('NEW_SESSION_EVENT_HANDLER', block.spec_version_id):
initial_session_event.add_session(db_session=self.db_session, session_id=0)
else:
initial_session_event.add_session_old(db_session=self.db_session, session_id=0)
