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How do I execute inserts and updates in an Alembic upgrade script?
... teams[player.team_name]
session.commit()
# don't need team name now that team relationship is set
op.drop_column('players', 'team')
def downgrade():
bind = op.get_bind()
session = orm.Session(bind=bind)
# re-add the players.team column
op.add_column('players', sa.Co...
Declaring a custom android UI element using XML
...or refuses to use the values for all android: attributes. I would like to know if it is a feature or bug
– deej
Mar 28 '13 at 0:17
...
NSInvocation for Dummies?
...send the addObject: message as follows:
[myArray addObject:myString];
Now, let's say you want to use NSInvocation to send this message at some other point in time:
First, you would prepare an NSInvocation object for use with NSMutableArray's addObject: selector:
NSMethodSignature * mySignatur...
What's the difference between lists and tuples?
... the first box under 3. Permitted operation shows the tuple case first. I know it is usual to show success then error, but that messed with my head for a few moments.
– dmckee --- ex-moderator kitten
Sep 10 '18 at 15:08
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Why am I merging “remote-tracking branch 'origin/develop' into develop”?
...nfig --global alias.up '!git remote update -p; git merge --ff-only @{u}'
Now all you need to do to bring your branch up to date is to run:
git up
instead of git pull. If you get an error because your local branch has diverged from the upstream branch, that's your cue to rebase.
Why not git pu...
How to create a generic array in Java?
...ed" or "unchecked"?
What does that mean?
Checked: strong typing. GenSet knows explicitly what type of objects it contains (i.e. its constructor was explicitly called with a Class<E> argument, and methods will throw an exception when they are passed arguments that are not of type E. See Colle...
How to navigate through a vector using iterators? (C++)
...trings
int n = 3; // nth element to be found.
int i = 0; // counter.
// now start at from the beginning
// and keep iterating over the element till you find
// nth element...or reach the end of vector.
for(it = myvector.begin(); it != myvector.end(); it++,i++ ) {
// found nth element..prin...
Pass data to layout that are common to all pages
...ed to always have view models. Also, I'd argue that developers needing to know that they must always inherit their view models from a base is a disadvantage.
– Josh Noe
Nov 5 '15 at 0:13
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Flask-SQLalchemy update a row's information
...esd_at = db.Column(db.DateTime) I just run obj.used_at = datetime.datetime.now() db.session.commit() But not value set to the field.
– Rukeith
Oct 30 '18 at 3:51
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Using an HTML button to call a JavaScript function
...g flat JavaScript for one? Goodness, jQuery is really getting on my nerves now. LOL! Ill call it lazy man's way of creating web, for I guess that's all it truly is.
– DoctorLouie
Dec 22 '09 at 22:16
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