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In a django model custom save() method, how should you identify a new object?
...ble, but named that way to avoid conflicts, checking self._state.adding is now the preferable way to check.
self.pk is None:
returns True within a new Model object, unless the object has a UUIDField as its primary_key.
The corner case you might have to worry about is whether there are uniquene...
How can I format my grep output to show line numbers at the end of the line, and also the hit count?
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sorry switched to linux now its working :) it was windows version not so good
– London
Oct 19 '10 at 12:33
1
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Django templates: verbose version of a choice
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yes, I know. It's not as general (universal), though - unless you know a way to iterate in a template over all get_FOO_display methods of a model object :) I'm a bit too lazy for writing non-generic templates ;) Moreover, the docs ...
How to remove spaces from a string using JavaScript?
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Interestingly, the split-join method is now the fastest for me on Firefox 73, followed by regexp1a at 53% slower.
– hackel
Jan 28 at 5:03
ad...
How can I install Apache Ant on Mac OS X?
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Thank you very much for your help. I didn't know that ant is already installed on my system. I already have Xcode installed, and I needed Ant to setup the environment for GTW and Android development. Thank you.
– florinmatinca
Ju...
Is there a label/goto in Python?
....
Granted, that isn't the best way to substitute for goto. But without knowing exactly what you're trying to do with the goto, it's hard to give specific advice.
@ascobol:
Your best bet is to either enclose it in a function or use an exception. For the function:
def loopfunc():
while 1:
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Rolling back local and remote git repository by 1 commit
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is there a way to know if somebody has pulled the repo?
– Pinkerton
Jul 5 '16 at 19:26
4
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Can I use GDB to debug a running process?
.../sys/kernel/yama/ptrace_scope depending on your requirements. Many systems now default to 1 or higher.
The sysctl settings (writable only with CAP_SYS_PTRACE) are:
0 - classic ptrace permissions: a process can PTRACE_ATTACH to any other
process running under the same uid, as long as it is dump...
Ignoring new fields on JSON objects using Jackson [duplicate]
...of your class (not to individual methods):
@JsonIgnoreProperties(ignoreUnknown = true)
public class Foo {
...
}
Depending on the jackson version you are using you would have to use a different import in the current version it is:
import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
...
How do I revert an SVN commit?
... then 1944 (bad commit), then 1945 (good commit), then 1946 (good commit). Now i want to remove only 1944(bad commit) and keep all revision after 1944, means i want a result like 1943,1945,1946(remove only 1944) from all these revision, what should i do ??
– Bhavin_m
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