大约有 22,000 项符合查询结果(耗时:0.0343秒) [XML]

https://stackoverflow.com/ques... 

How do I use pagination with Django class based generic ListViews?

... I have been doing this, but the problem I find, is when I do extra processing on objects in the queryset, it applys them to all of the results in the database. So for a query that returns 100 objects, but shows only ten objects per page, the extra processing will be done on 100 objects...
https://stackoverflow.com/ques... 

Why would you ever implement finalize()?

...rr to point out that you're cleaning up after a buggy caller. It provides extra safety in an exceptional/buggy situation. Not every caller is going to do the correct try {} finally {} stuff every time. Unfortunate, but true in most environments. I agree that it's rarely needed. And as commenter...
https://stackoverflow.com/ques... 

Merge 2 arrays of objects

...mplexity as @YOU's answer, except that this is much slower (largely due to extra function calls and the fact the YOU's answer exploits the JS associative arrays trick to find items with O(1) lookup). This is besides the fact that you need to bring an additional library. – Mrch...
https://stackoverflow.com/ques... 

deny direct access to a folder and file by htaccess

...or a timestamp and validation. The validation could be, say, the first 10 chars of an MD5 of the timestamp and some internal secret. On processing the submit you can then (i) validate that the timestamp and validation match, and (ii) the timestamp is within, say, 15 minutes of the current time. T...
https://stackoverflow.com/ques... 

SQL Client for Mac OS X that works with MS SQL Server [closed]

.../Java/Extensions). Whichever driver you pick, make sure you add it to the "Extra Class Path" list for the MSSQL driver, then pick the class name for the driver at the bottom of the same dialog. – outis Feb 5 '11 at 13:45 ...
https://stackoverflow.com/ques... 

What’s the best way to check if a file exists in C++? (cross platform)

...on in the stream: #include <fstream> bool checkExistence(const char* filename) { ifstream Infield(filename); return Infield.good(); } share | improve this answer | ...
https://stackoverflow.com/ques... 

Normalize data in pandas

... If your dataframe has strings in some columns, see this answer – netskink Jul 22 '18 at 0:21  |  ...
https://stackoverflow.com/ques... 

What does $$ mean in the shell?

...e mktemp option -t is now deprecated (I think because of problems with the char -). Use mktemp ${tempfoo}.XXXXXX these days. I take the liberty to update your post. – Sebastian Jan 10 '14 at 11:44 ...
https://stackoverflow.com/ques... 

Best way to add page specific JavaScript in a Rails 3 app?

...ge of the asset pipeline, minified js etc, it's possible to do so and have extra js assets which are combined and only loaded on specific pages by splitting your js into groups which only apply in certain controllers/views/sections of the site. Move your js in assets into folders, with a separate ...
https://stackoverflow.com/ques... 

The server principal is not able to access the database under the current security context in SQL Se

...figured out I just had a stupid typo in the Database Name in my connection string connecting to Azure SQL Database. If your Database Name is correct, you don't need access to Master. If it's wrong, then (in my case) I think Entity Framework (6.1.3) is trying to be extra smart by connecting to Master...