forked from LBRYCommunity/lbry-sdk
73 lines
2.4 KiB
Python
73 lines
2.4 KiB
Python
from sqlalchemy.future import select
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from lbry.db.query_context import progress, Event
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from lbry.db.tables import TXI, TXO
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from .queries import rows_to_txos
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def process_all_things_after_sync():
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with progress(Event.INPUT_UPDATE) as p:
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p.start(2)
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set_input_addresses(p.ctx)
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p.step(1)
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update_spent_outputs(p.ctx)
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p.step(2)
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with progress(Event.SUPPORT_DELETE) as p:
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p.start(1)
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sql = Support.delete().where(condition_spent_supports)
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p.ctx.execute(sql)
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with progress(Event.SUPPORT_INSERT) as p:
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loader = p.ctx.get_bulk_loader()
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for support in rows_to_txos(p.ctx.fetchall(select_missing_supports)):
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loader.add_support(support)
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loader.save()
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with progress(Event.CLAIM_DELETE) as p:
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p.start(1)
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sql = Claim.delete().where(condition_spent_claims())
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p.ctx.execute(sql)
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with progress(Event.CLAIM_INSERT) as p:
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loader = p.ctx.get_bulk_loader()
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for claim in rows_to_txos(p.ctx.fetchall(select_missing_claims)):
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loader.add_claim(claim)
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loader.save()
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with progress(Event.CLAIM_UPDATE) as p:
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loader = p.ctx.get_bulk_loader()
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for claim in rows_to_txos(p.ctx.fetchall(select_stale_claims)):
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loader.update_claim(claim)
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loader.save()
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def set_input_addresses(ctx):
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# Update TXIs to have the address of TXO they are spending.
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if ctx.is_sqlite:
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address_query = select(TXO.c.address).where(TXI.c.txo_hash == TXO.c.txo_hash)
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set_addresses = (
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TXI.update()
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.values(address=address_query.scalar_subquery())
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.where(TXI.c.address.is_(None))
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)
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else:
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set_addresses = (
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TXI.update()
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.values({TXI.c.address: TXO.c.address})
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.where((TXI.c.address.is_(None)) & (TXI.c.txo_hash == TXO.c.txo_hash))
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)
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ctx.execute(set_addresses)
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def update_spent_outputs(ctx):
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# Update spent TXOs setting spent_height
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set_spent_height = (
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TXO.update()
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.values({
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TXO.c.spent_height: (
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select(TXI.c.height)
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.where(TXI.c.txo_hash == TXO.c.txo_hash)
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.scalar_subquery()
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)
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}).where(
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(TXO.c.spent_height == 0) &
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(TXO.c.txo_hash.in_(select(TXI.c.txo_hash)))
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)
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)
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ctx.execute(set_spent_height)
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