Updating a filename's counter value failed each time

Νίκος support at superhost.gr
Mon Jun 17 19:11:55 EDT 2013


Στις 18/6/2013 1:22 πμ, ο/η MRAB έγραψε:
> On 17/06/2013 21:44, John Gordon wrote:
>> In <MtKvt.47400$ja6.35986 at fx18.am4> Alister
>> <alister.ware at ntlworld.com> writes:
>>
>>> > #update file's counter if cookie does not exist cur.execute('''UPDATE
>>> > files SET hits = hits + 1, host = %s, lastvisit =
>>> > %s WHERE url = %s''', (host, lastvisit, filename) )
>>> >
>>> > if cur.rowcount:
>>> >         print( " database has been affected" )
>>> >
>>> > indeed every time i select afilename the message gets printed bu then
>>> > again noticing the database via phpmyadmin the filename counter is
>>> > always remaining 0, and not added by +1
>>
>>> replase
>>>  if cur.rowcount:
>>>          print( " database has been affected" )
>>
>>> with print cur.rowcount()
>>
>> rowcount isn't a method call; it's just an attribute.  You don't need
>> the parentheses.
>>
> Well, you do need parentheses, it's just that you need them around the
> 'print':
>
> if cur.rowcount:
>      print(cur.rowcount)
>
Okey print( cur.rowcount ) shows each time a select a fialenme from the 
html table for downlaod that update affected 1 row.

Checking the database records instantly shown that in fact the counter 
was increased by +1

Runing files.py turn all counter values to 0.

So, update works, its the reload of files.py the deleets the values.

# Delete those database records that do not exist as filenames inside 
the path
for rec in data:
	if rec not in filenames:
		cur.execute('''DELETE FROM files WHERE url = %s''', rec )

# Load'em
for filename in filenames:
	try:
		# try to insert the file into the database
		cur.execute('''INSERT INTO files (url, host, lastvisit) VALUES (%s, 
%s, %s)''', (filename, host, lastvisit) )
	except pymysql.ProgrammingError as e:
		# Insertion failed, file already into database, skip this, go to next 
filename
		pass

These lines i dont how but they "manage" not to maintain the counter's value

-- 
What is now proved was at first only imagined!



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