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Cannot add or update a child row: a foreign key constraint fails
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Most likely a 0 , replace it by Null if it's the case
– Jeffrey Nicholson Carré
Mar 15 '13 at 21:03
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How do I configure a Python interpreter in IntelliJ IDEA with the PyCharm plugin?
...our project's virtual environment. In the Classpath tab add the PYTHONPATH by clicking + button
and now the modules will be recognized
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Disabling highlighting of current line in the Visual Studio editor
The Visual Studio editor highlights the current line by changing the background color of the current line. Is there a simple way to disable this highlighting? Otherwise, which parameter in Fonts and Colors dialog controls the background color of the currently selected line in the editor?
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Capturing Ctrl-c in ruby
I was passed a long running legacy ruby program, which has numerous occurrences of
5 Answers
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Maintaining the final state at end of a CSS3 animation
...ill-mode: forwards;
The element will retain the style values that is set by the last keyframe (depends on animation-direction and animation-iteration-count).
Note: The @keyframes rule is not supported in Internet Explorer 9 and earlier versions.
Working example
div {
width: 100px;
hei...
JPA getSingleResult() or null
...n it doesn't exist or update it if it does. To enable this, I have to findByIdAndForeignKey , if it returned null insert if not then update. The problem is how do I check if it exists? So I tried getSingleResult . But it throws an exception if the
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How to make pipes work with Runtime.exec()?
...ic.com/display/SIGAR/Home
The simplest solution, however, (as pointed out by Kaj) is to execute the piped command as a string array. Here is the full code:
try {
String line;
String[] cmd = { "/bin/sh", "-c", "ps -ef | grep export" };
Process p = Runtime.getRuntime().exec(cmd);
Bu...
Remove 'a' from legend when using aesthetics and geom_text
How can I can remove the letter 'a' from the legend generated by this code? If I remove the geom_text , then the 'a' letter will not show in the legend. I want to keep geom_text , though.
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I need an unordered list without any bullets
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You can remove bullets by setting the list-style-type to none on the CSS for the parent element (typically a <ul>), for example:
ul {
list-style-type: none;
}
You might also want to add padding: 0 and margin: 0 to that if you want to rem...
“Cannot connect to iTunes Store” in-app purchases
...count you tested a previous IAP on another app with (My scenario). Apple really needs to update the way we test IAPs, I'm running out of emails :0
– David Baez
Jan 23 '18 at 1:38
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