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What's the difference between @JoinColumn and mappedBy when using a JPA @OneToMany association
... symmetry in many-to-many relationships and Hibernate has no rationale for selecting one direction over the other.
We therefore use MappedBy to tell Hibernate, we have chosen the other entity to dictate the mapping of the relationship between the two entities.
@Entity
public class Driver {
@Ma...
Visual Studio 2013 Missing Convert To Web Application
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It's been moved to the 'Project' menu towards the bottom after selecting the project or folder:
Sources: http://connect.microsoft.com/VisualStudio/feedback/details/806246/visual-studio-2013-web-forms-conver-to-web-applications
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Firefox session cookies
...havior quite questionable, thanks for your research. If "Save and Quit" is selected or "Restore tabs and windows", upon closing the browser, all session cookies remain intact. The only way for the "user" to get rid of them is to first close the tab(s) and then close the browser.
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Django - filtering on foreign key properties
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Is this going to hit the DB twice, should I be using select_related() to make this more optimal?
– Fraser Graham
Dec 30 '09 at 22:52
5
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Why would one omit the close tag?
...r mind.
Bonus: a few gotchas (actually currently one) related to these 2 characters:
Even some well-known libraries may contain excess line endings after ?>. An example is Smarty, even the most recent versions of both 2.* and 3.* branch have this. So, as always, watch for third party code. Bo...
Unix command-line JSON parser? [closed]
... you to do powerful things really easily:
cat earthporn.json | underscore select '.data .title'
# [ 'Fjaðrárgljúfur canyon, Iceland [OC] [683x1024]',
# 'New town, Edinburgh, Scotland [4320 x 3240]',
# 'Sunrise in Bryce Canyon, UT [1120x700] [OC]',
# ...
# 'Kariega Game Reserve, South Afric...
Move entire line up and down in Vim
...;A-down> but when I try those keys in vim in visual running in tmux the selection disappears and the cursor moves line up; without moving the selected lines.
– Konrad
Dec 27 '16 at 9:49
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What is the preferred/idiomatic way to insert into a map?
... }
private:
std::vector<double> m_vec;
};
int main(int argc, char* argv[]) {
std::map<int,Widget> map_W;
ptime t1 = boost::posix_time::microsec_clock::local_time();
for(int it = 0; it < 10000;it++) {
map_W.insert(std::pair<int,Widget>(it,Widget...
MySQL/Amazon RDS error: “you do not have SUPER privileges…”
...e “Parameter Groups” tab.
Create a new Parameter Group. On the dialog, select the MySQL family compatible to your MySQL database version, give it a name and confirm.
Select the just created Parameter Group and issue “Edit Parameters”.
Look for the parameter ‘log_bin_trust_function_creators...
How do I set a variable to the output of a command in Bash?
...-expanded before being passed to the echo command.
– Charles Duffy
Apr 21 '15 at 15:37
4
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