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How do I clone a Django model instance object and save it to the database?
In the database, I want to add another object which is a copy of the object above.
13 Answers
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git update-index --assume-unchanged returns “fatal unable to mark file”
I am having the same problem as the OP on this post, but I don't understand the answer marked as correct (I don't see that it explains how to fix the situation)
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How to modify existing, unpushed commit messages?
I wrote the wrong thing in a commit message.
27 Answers
27
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Thread pooling in C++11
... can help:
1) Start with maximum number of threads a system can support:
int Num_Threads = thread::hardware_concurrency();
2) For an efficient threadpool implementation, once threads are created according to Num_Threads, it's better not to create new ones, or destroy old ones (by joining). Ther...
Is there a string math evaluator in .NET?
If I have a string with a valid math expression such as:
16 Answers
16
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PDO mysql: How to know if insert was successful
I'm using PDO to insert a record (mysql and php)
7 Answers
7
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git rebase: “error: cannot stat 'file': Permission denied”
I'm using git, and made a small commit followed by a large one. I decided to use git rebase to squash the two commits together before pushing them. (I've never done this before.)
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Manually put files to Android emulator SD card
I'm just having trouble with getting my emulator SD card work...
I created a new AVD device with a new SD card.
6 Answers
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SQLite in Android How to update a specific row
I've been trying to update a specific row for a while now, and it seems that there are two ways to do this. From what I've read and tried, you can just use the:
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How to send HTTP request in java? [duplicate]
In Java, How to compose a HTTP request message and send it to a HTTP WebServer?
9 Answers
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