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get_namespace_op_state() for getting historic namespace states; on

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committing a state transition, include expired namespace op sequences
(this is because the block we're processing is one block later than the
block we used to query properties about the namespace--we need to ensure
that if we have a state-transition on a namespace that occurred on the
last possible block, we still accept it)
This commit is contained in:
Jude Nelson
2016-09-09 11:17:53 -04:00
parent 4802c6638b
commit feed3422ee
1 changed files with 17 additions and 2 deletions
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19
blockstack/lib/nameset/namedb.py
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@@ -571,6 +571,21 @@ class BlockstackDB( virtualchain.StateEngine ):
cur = self.db.cursor()
return namedb_get_namespace_ready( cur, namespace_id )
@autofill( "opcode" )
def get_namespace_op_state( self, namespace_id, block_number, include_expired=False ):
"""
Given a namespace ID and block number, get the current namespace op (revealed or ready) for it
if the namespace existed after that block. Optionally return the namespace
record even if it's a NAMESPACE_REVEAL and it expired.
Return the dict with the parameters on success.
Return None if the namespace has not yet been revealed.
"""
cur = self.db.cursor()
return namedb_get_namespace( cur, namespace_id, block_number )
@autofill( "opcode" )
def get_namespace_by_preorder( self, preorder_hash ):
@@ -1551,7 +1566,7 @@ class BlockstackDB( virtualchain.StateEngine ):
cur_record = namedb_get_name( cur, history_id, current_block_number, include_history=False, include_expired=True )
elif history_id_key == "namespace_id":
cur_record = namedb_get_namespace( cur, history_id, current_block_number, include_history=False )
cur_record = namedb_get_namespace( cur, history_id, current_block_number, include_history=False, include_expired=True )
else:
raise Exception("Unknown history ID key '%s'" % history_id_key)
@@ -1581,7 +1596,7 @@ class BlockstackDB( virtualchain.StateEngine ):
if history_id_key == "name":
new_record = namedb_get_name( cur, history_id, current_block_number, include_history=False, include_expired=True )
elif history_id_key == "namespace_id":
new_record = namedb_get_namespace( cur, history_id, current_block_number, include_history=False )
new_record = namedb_get_namespace( cur, history_id, current_block_number, include_history=False, include_expired=True )
return new_record