def fix_next_block(block, chain):
logger.info('fixing next block for {}'.format(block))
# it's likely that this block is an orphan so we should remove it and rescan
this_height = block.height
this_hash = get_block_hash(this_height, schema_name=chain)
if not this_hash:
logger.warning(
'could not get hash for block at height {}'.format(this_height))
return
if this_hash != block.hash:
block = Block.objects.create(hash=this_hash, height=this_height)
next_hash = get_block_hash(this_height + 1, schema_name=chain)
if not next_hash:
logger.warning(
'could not get next hash for height {}'.format(this_height + 1))
return
try:
next_block = Block.objects.get(hash=next_hash)
except Block.DoesNotExist:
next_block = Block(hash=next_hash)
block.next_block = next_block
block.save()
next_block.height = this_height + 1
next_block.previous_block = block
next_block.save(validate=False)
