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What is causing ERROR: there is no unique constraint matching given keys for referenced table?
...index.
See also http://www.postgresql.org/docs/9.1/static/ddl-constraints.html#DDL-CONSTRAINTS-FK and specifically:
Finally, we should mention that a foreign key must reference columns
that either are a primary key or form a unique constraint.
Emphasis mine.
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nginx: [emerg] could not build the server_names_hash, you should increase server_names_hash_bucket_s
... to 128 and further.
Reference: http://nginx.org/en/docs/http/server_names.html#optimization
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Python module os.chmod(file, 664) does not change the permission to rw-rw-r— but -w--wx----
...tat.S_IROTH
)
This is documented at https://docs.python.org/3/library/os.html#os.chmod and the names are the same as the POSIX C API values documented at man 2 stat.
Another advantage is the greater portability as mentioned in the docs:
Note: Although Windows supports chmod(), you can only se...
DialogFragment setCancelable property not working
...s."
ref:http://developer.android.com/reference/android/app/DialogFragment.html#setCancelable(boolean)
public class MyDialogFragment extends DialogFragment {
@Override
public Dialog onCreateDialog(Bundle savedInstanceState) {
LayoutInflater inflater = getActivity().getLayoutInf...
Is there a way to word-wrap long words in a div?
...
white-space: pre-wrap
quirksmode.org/css/whitespace.html
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How to write to a file in Scala?
...t old "hello world" joke: ariel.com.au/jokes/The_Evolution_of_a_Programmer.html :-) (+1 vote from me).
– greenoldman
Oct 9 '11 at 19:45
4
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How do I create a constant in Python?
...in the docs that makes me think that: docs.python.org/2/library/exceptions.html
– ArtOfWarfare
May 10 '15 at 16:41
3
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How to make overlay control above all other controls?
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Note: This is not like the HTML Canvas like I expected. It's not meant for direct drawing, but provides an absolute positioning context (that you would usually directly put shapes into).
– Paul
Mar 15 '19 at 15:52...
Dark theme in Netbeans 7 or 8
...ow to change it - docs.oracle.com/javase/tutorial/uiswing/lookandfeel/plaf.html The code is pre-written by netbeans in main() of new JFrame form, you can simply change the class-name for the required theme.
– coding_idiot
Mar 12 '14 at 15:24
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Accept server's self-signed ssl certificate in Java client
...ate in the truststore
try {
URL url = new URL("https://hostname/index.html");
} catch (MalformedURLException e) {
}
Note that I do not recommend the Option #2 at all. Disabling the trust manager defeats some parts of SSL and makes you vulnerable to man in the middle attacks. Prefer Option #...