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Efficiently updating database using SQLAlchemy ORM
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Withough testing, I'd try:
for c in session.query(Stuff).all():
c.foo = c.foo+1
session.commit()
(IIRC, commit() works without flush()).
I've found that at times doing a large query and then iterating in python can be up to 2...
What is x after “x = x++”?
...alidate what I said would be to consult the JLS. Your compile / decompile test only shows that what I said is valid for one Java compiler. Others could (hypothetically) behave differently ... except that the JLS doesn't allow that.
– Stephen C
Aug 24 '12 at 1...
Django get the static files URL in view
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here's another way! (tested on Django 1.6)
from django.contrib.staticfiles.storage import staticfiles_storage
staticfiles_storage.url(path)
share
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The object 'DF__*' is dependent on column '*' - Changing int to double
...special script(DropConstraint) to remove it without knowing it's name (was tested at EF 6.1.3):
public override void Up()
{
DropConstraint();
AlterColumn("dbo.MyTable", "Rating", c => c.Double(nullable: false));
}
private void DropConstraint()
{
Sql(@"DECLARE @var0 nvarchar(128)...
Show data on mouseover of circle
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The latest d3-tip supports d3v4 just fine. It's not obvious if you google around, but it is working great for me with d3v4.
– moodboom
Apr 6 '17 at 3:04
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Can vim monitor realtime changes to a file
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I was testing in terminal, after I used gvim (MacVim GUI) the function began to work! As you mentioned though, I need to focus gvim to update the content. Do you have any trick to update it even without focusing? Thanks for your he...
mysql_fetch_array()/mysql_fetch_assoc()/mysql_fetch_row()/mysql_num_rows etc… expects parameter 1 to
...ll return false from their respective query functions/methods. You need to test for that error condition and handle it accordingly.
mysql_* extension:
NOTE The mysql_ functions are deprecated and have been removed in php version 7.
Check $result before passing it to mysql_fetch_array. You'll ...
How to pretty print nested dictionaries?
... you can do whatever you want with it.
The class and the function has been tested and works with Python 2.7 and 3.4.
You can have all type of objects inside, this is their representations and not theirs contents that being put in the result (so string have quotes, Unicode string are fully represente...
Can I arrange repositories into folders on Github?
.... And some of these also belong to bigger projects because they were about testing some stuff as a different application.
5...
How to remove local (untracked) files from the current Git working tree
...in conjunction
with git reset) to create a pristine working directory to test a clean
build.
-X
Remove only files ignored by Git. This may be useful to rebuild
everything from scratch, but keep manually created files.
-n, --dry-run
Don’t actually remove anything, just sho...