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Should you commit .gitignore into the Git repos?
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If you already have a file checked in, and you want to ignore it, Git will not ignore the file if you add a rule later. In those cases, you must untrack the file first, by running the following command in your terminal: git r...
django admin - add custom form fields that are not part of the model
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If for some reason, you get an AttributeError: Unable to lookup "extra_field"..., try adding a label to the extra_field definition. It seems that django tries to "guess" the label for it, by looking at the Model and the Model...
Exception thrown in NSOrderedSet generated accessors
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I reproduced your setup both with your data model and one of my own with different names. I got the same error in both cases.
Looks like a bug in Apple's autogenerated code.
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How do I find the authoritative name-server for a domain name?
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What does it mean if there is no authoritative answer but the non-authoritative answer is fine ?
– Overmind
Jul 5 '17 at 9:31
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How to default to other directory instead of home directory
...c file:
foo() { cd /d/work_space_for_my_company/project/code_source ; }
If the directory name includes spaces or other shell metacharacters, you'll need quotation marks; it won't hurt to add them even if they're not necessary:
foo() { cd "/d/Work Space/project/code_source" ; }
(Note that I've ...
Insert an element at a specific index in a list and return the updated list
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If you can't tolerate 3 lines of readable code, put it in a function and call it.
– IceArdor
Aug 1 '14 at 21:06
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How many Activities vs Fragments?
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I agree that the tutorials are very simplified. They just introduce Fragments but I do not agree with the pattern as suggested.
I also agree that it is not a good idea to duplicate your app's logic across many Activities (see DRY Principle on wikipedia).
I prefe...
Can I delete a git commit but keep the changes?
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git reset without a --hard or --soft moves your HEAD to point to the specified commit, without changing any files. HEAD^ refers to the (first) parent commit of your current commit, which in your case is the commit before the temporary one.
Note that another option is to carry on as normal, and th...
MongoDB - Update objects in a document's array (nested updating)
...at this will only increment the first matched subdocument in any array (so if you have another document in the array with "item_name" equal to "my_item_two", it won't get incremented). But this might be what you want.
The second part is trickier. We can push a new item to an array without a "my_...
How to unpack and pack pkg file?
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Packages are just .xar archives with a different extension and a specified file hierarchy. Unfortunately, part of that file hierarchy is a cpio.gz archive of the actual installables, and usually that's what you want to edit. And there's also a Bom file that include...