Bitmessage/PyBitmessage-2024-11-30
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helper_sql formating

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Mahendra 2018-04-07 12:59:09 +05:30
parent 5a2bac7e8c
commit 21922251e2
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1 changed files with 16 additions and 12 deletions
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28
src/helper_sql.py
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@ -1,22 +1,26 @@
"""Helper Sql performs sql operations."""
import threading
import Queue
sqlSubmitQueue = Queue.Queue() #SQLITE3 is so thread-unsafe that they won't even let you call it from different threads using your own locks. SQL objects can only be called from one thread.
sqlSubmitQueue = Queue.Queue() # SQLITE3 is so thread-unsafe that they won't
# even let you call it from different threads using your own locks. SQL
# objects #can only be called from one thread.
sqlReturnQueue = Queue.Queue()
sqlLock = threading.Lock()
def sqlQuery(sqlStatement, *args):
sqlLock.acquire()
sqlSubmitQueue.put(sqlStatement)
if args == ():
sqlSubmitQueue.put('')
elif type(args[0]) in [list, tuple]:
elif isinstance(args[0], (list, tuple)):
sqlSubmitQueue.put(args[0])
else:
sqlSubmitQueue.put(args)
queryreturn, rowcount = sqlReturnQueue.get()
queryreturn, _ = sqlReturnQueue.get()
sqlLock.release()
return queryreturn
@ -37,14 +41,14 @@ def sqlExecuteChunked(sqlStatement, idCount, *args):
sqlExecuteChunked.chunkSize - (len(args) - idCount)
):
chunk_slice = args[
i:i+sqlExecuteChunked.chunkSize - (len(args) - idCount)
i:i + sqlExecuteChunked.chunkSize - (len(args) - idCount)
]
sqlSubmitQueue.put(
sqlStatement.format(','.join('?' * len(chunk_slice)))
)
# first static args, and then iterative chunk
sqlSubmitQueue.put(
args[0:len(args)-idCount] + chunk_slice
args[0:len(args) - idCount] + chunk_slice
)
retVal = sqlReturnQueue.get()
totalRowCount += retVal[1]
@ -60,7 +64,6 @@ def sqlExecute(sqlStatement, *args):
sqlSubmitQueue.put('')
else:
sqlSubmitQueue.put(args)
queryreturn, rowcount = sqlReturnQueue.get()
sqlSubmitQueue.put('commit')
sqlLock.release()
@ -71,25 +74,27 @@ def sqlStoredProcedure(procName):
sqlSubmitQueue.put(procName)
sqlLock.release()
class SqlBulkExecute:
def __enter__(self):
sqlLock.acquire()
return self
def __exit__(self, type, value, traceback):
def __exit__(self, exc_type, value, traceback):
sqlSubmitQueue.put('commit')
sqlLock.release()
def execute(self, sqlStatement, *args):
@staticmethod
def execute(sqlStatement, *args):
sqlSubmitQueue.put(sqlStatement)
if args == ():
sqlSubmitQueue.put('')
else:
sqlSubmitQueue.put(args)
sqlReturnQueue.get()
def query(self, sqlStatement, *args):
@staticmethod
def query(sqlStatement, *args):
sqlSubmitQueue.put(sqlStatement)
if args == ():
@ -97,4 +102,3 @@ class SqlBulkExecute:
else:
sqlSubmitQueue.put(args)
return sqlReturnQueue.get()