大约有 48,000 项符合查询结果（耗时：0.0666秒） [XML]
Rolling back local and remote git repository by 1 commit
I've read the similar posts on this topic, and can't for the life of me figure out how to do this properly.
14 Answers
...
How do I execute inserts and updates in an Alembic upgrade script?
...ms.
Note that Alembic provides some basic data functions: op.bulk_insert() and op.execute(). If the operations are fairly minimal, use those. If the migration requires relationships or other complex interactions, I prefer to use the full power of models and sessions as described below.
The followi...
CSS3 transform not working
... My CSS works in Firefox but I've failed to replicate the effect in Chrome and Safari. I know IE doesn't support this CSS3 property so that's not a problem.
...
Is there a difference between authentication and authorization?
I see these two terms bandied about quite a bit (specifically in web-based scenarios but I suppose it's not limited to that) and I was wondering whether or not there was a difference.
...
How to add a local repo and treat it as a remote repo
...
You have your arguments to the remote add command reversed:
git remote add <NAME> <PATH>
So:
git remote add bak /home/sas/dev/apps/smx/repo/bak/ontologybackend/.git
See git remote --help for more information.
...
How to use '-prune' option of 'find' in sh?
I don't quite understand the example given from the man find , can anyone give me some examples and explanations? Can I combine regular expression in it?
...
What is a “cache-friendly” code?
What is the difference between " cache unfriendly code " and the " cache friendly " code?
9 Answers
...
Flatten nested dictionaries, compressing keys
...iterating the dict by key/value, creating new keys for your new dictionary and creating the dictionary at final step.
import collections
def flatten(d, parent_key='', sep='_'):
items = []
for k, v in d.items():
new_key = parent_key + sep + k if parent_key else k
if isinstan...
How to add “on delete cascade” constraints?
... You have to drop the constraint first, then add the correct version. In standard SQL, I believe the easiest way to do this is to
start a transaction,
drop the foreign key,
add a foreign key with on delete cascade, and finally
commit the transaction
Repeat for each foreign key you want to change...
How to get pixel data from a UIImage (Cocoa Touch) or CGImage (Core Graphics)?
...outline, cleaned-up the typos, generalized it to return an array of colors and got the whole thing to compile. Here is the result:
+ (NSArray*)getRGBAsFromImage:(UIImage*)image atX:(int)x andY:(int)y count:(int)count
{
NSMutableArray *result = [NSMutableArray arrayWithCapacity:count];
// ...