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Forgot that NULL values are actually always seen as distinct values in SQL. Why does SQLite even allow NULL in PRIMARY KEY?

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This commit is contained in:
Klaus-Uwe Mitterer 2016-08-09 00:19:29 +02:00
parent 6b443f71c9
commit 44ee524ece
2 changed files with 6 additions and 6 deletions
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4
dbtools/__init__.py
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@ -75,12 +75,12 @@ class dbObject:
return setuptools.getDate(str(self.getNext()["%s(SUBSTR(timestamp,0,11))" % mode]))
def getFollowers(db):
db.executeQuery("SELECT id FROM followers WHERE `until` IS NULL;")
db.executeQuery("SELECT id FROM followers WHERE `until` = 0;")
for i in db.getAll():
yield i[0]
def getFollowing(db):
db.executeQuery("SELECT id FROM following WHERE `until` IS NULL;")
db.executeQuery("SELECT id FROM following WHERE `until` = 0;")
for i in db.getAll():
yield i[0]

8
filler.py
View file

@ -62,13 +62,13 @@ def getFollowers(db=dbtools.dbHelper(), two=twitools.twObject(), firstrun=False)
for follower in new:
if follower not in current:
db.executeQuery("INSERT INTO followers VALUES('%s', %i, NULL)" % (follower, int(time.time())))
db.executeQuery("INSERT INTO followers VALUES('%s', %i, 0)" % (follower, int(time.time())))
print("New follower: %s" % follower)
gained += 1
for follower in current:
if follower not in new:
db.executeQuery("UPDATE followers SET `until` = %i WHERE `id` = '%s' AND `until` IS NULL" % (int(time.time()), follower))
db.executeQuery("UPDATE followers SET `until` = %i WHERE `id` = '%s' AND `until` = 0" % (int(time.time()), follower))
print("Lost follower: %s" % follower)
lost += 1
@ -88,13 +88,13 @@ def getFollowing(db=dbtools.dbHelper(), two=twitools.twObject(), firstrun=False)
for following in new:
if following not in current:
db.executeQuery("INSERT INTO following VALUES('%s', %i, NULL)" % (following, int(time.time())))
db.executeQuery("INSERT INTO following VALUES('%s', %i, 0)" % (following, int(time.time())))
print("You started following: %s" % following)
gained += 1
for following in current:
if following not in new:
db.executeQuery("UPDATE following SET `until` = %i WHERE `id` = '%s' AND `until` IS NULL" % (int(time.time()), following))
db.executeQuery("UPDATE following SET `until` = %i WHERE `id` = '%s' AND `until` = 0" % (int(time.time()), following))
print("You no longer follow: %s" % following)
lost += 1