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How to fix the Hibernate “object references an unsaved transient instance - save the transient insta
...scadeType.ALL is suitable for the bidirectional @OneToMany associations.
Now, in order for the cascade to work properly in a bidirectional, you also need to make sure that the parent and child associations are in sync.
Check out this article for more details about what is the best way to achi...
Mercurial for Beginners: The Definitive Practical Guide
...commit Mercurial will cease tracking it in this and future commits.
? - Unknown. The file is not currently tracked by Mercurial. Committing will have no effect on it unless you use hg add to add it.
! - Missing. The file was tracked but Mercurial cannot find it in the working copy.
To see the c...
Throwing cats out of windows
...be self-explanatory:
If first cat is thrown from k-th floor and dies, we now have k - 1 floors to check (all below k) and m - 1 cats (a[k - 1][m - 1]).
If cat survives, there're n - k floors left (all floors above k) and still m cats.
The worst case of two should be chosen, hence max.
+ 1 comes...
Integrate ZXing in Android Studio
...ent over a day trying to import Zxing from another project and was getting nowhere. Then I found this link and BAM it's done. Just follow the code example as above from this link: github.com/zxing/zxing/wiki/Scanning-Via-Intent.
– Jack BeNimble
Apr 8 '15 at 3:3...
Make div (height) occupy parent remaining height
... wish to support.
Flexbox
CSS3's Flexible Box Layout Module (flexbox) is now well-supported and can be very easy to implement. Because it is flexible, it even works when #up does not have a defined height.
#container { display: flex; flex-direction: column; }
#down { flex-grow: 1; }
It's import...
Convert INT to VARCHAR SQL
...
Thanks. But now I got another error. When I try to do this kind of Select : SELECT CONVERT(varchar(10), field_name) FROM table_name. Or even the normal one like: SELECT field_name FROM table_name. Both are correct. I dont know why. But w...
Abort makefile if variable not set
...))$(if $(value @), \
required by target `$@')))
So that, now a failed check produces a nicely formatted output:
Makefile:7: *** Undefined BAR (baz value) required by target `foo'. Stop.
check-defined-MY_FLAG special target
Personally I would use the simple and straightforward ...
Best way to get application folder path
... that could be "file:\\C:\\hg\\Services\\Services\\Services.Website\\bin"
Now in case of for example console app points 2-6 will be directory where .exe file is.
Hope this saves you some time.
share
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...
Ruby send vs __send__
...th objects of any class, you need to use __send__ to be on the safe side.
Now that leaves the question, why there is send and not just __send__. If there were only __send__ the name send could be used by other classes without any confusion. The reason for that is that send existed first and only la...
The difference between try/catch/throw and try/catch(e)/throw e
...nless you are simply using this to log the exceptions, should be avoided). Now look at these:
try { ... }
catch ()
{
/* ... */
throw;
}
try { ... }
catch (Exception e)
{
/* ... */
throw;
}
try { ... }
catch (Exception e)
{
/* ... */
throw e;
}
The first and second try-ca...