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Bogus foreign key constraint fail
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On demand, now as an answer...
When using MySQL Query Browser or phpMyAdmin, it appears that a new connection is opened for each query (bugs.mysql.com/bug.php?id=8280), making it neccessary to write all the drop statements in one query...
What's the right way to pass form element state to sibling/parent elements?
... updating the state in the Root component and re-rendering, C2's props are now in sync since the state was updated in the Root component and passed along.
class Example extends React.Component {
constructor (props) {
super(props)
this.state = { data: 'test' }
}
render () {
return ...
Encapsulation vs Abstraction?
...or the first time ever, it actually clicked in my head and made sense. I know it's been 3+ years since you posted this, but thank you.
– Casey Crookston
Oct 8 '15 at 14:39
1
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Should I compile with /MD or /MT?
...s with older versions. The newer versions would be gone. This is commonly known as "dll hell", see en.wikipedia.org/wiki/DLL_Hell
– Adrian Grigore
Sep 18 '12 at 19:24
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Git Pull While Ignoring Local Changes?
...23 and 7 different commits each, respectively.
$ git reset --hard
HEAD is now at b05f611 Here the commit message bla, bla
$ git pull
Auto-merging thefile1.c
CONFLICT (content): Merge conflict in thefile1.c
Auto-merging README.md
CONFLICT (content): Merge conflict in README.md
Automatic merge faile...
Vertically centering a div inside another div [duplicate]
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Modern solution (transform)
Since transforms are fairly well supported now there is an easier way to do it.
CSS
.cn {
position: relative;
width: 500px;
height: 500px;
}
.inner {
position: absolute;
top: 50%; left: 50%;
transform: translate(-50%,-50%);
width: 200px;
height: 200...
How to design a product table for many kinds of product where each product has many parameters
...tions based on which is the least bad for your app. Therefore you need to know how you're going to query the data before you choose a database design. There's no way to choose one solution that is "best" because any of the solutions might be best for a given application.
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How do I find the next commit in git? (child/children of ref)
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The creator for Hudson (now Jenkins) Kohsuke Kawaguchi just published (November 2013):
kohsuke / git-children-of:
Given a commit, find immediate children of that commit.
#!/bin/bash -e
# given a commit, find immediate children of that commit.
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How can I convert a Unix timestamp to DateTime and vice versa?
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For the .NET Framework 4.6 and above there is now static DateTimeOffset.FromUnixMilliseconds and DateTimeOffset.ToUnixMilliseconds.
– rookie1024
May 18 '16 at 2:49
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Git: How to return from 'detached HEAD' state
...u want to create a new branch to retain commits you create, you may
do so (now or later) by using -b with the checkout command again.
Example:
git checkout -b <new-branch-name>
HEAD is now at 50a7153d7... Merge branch 'hotfix/1.87.1'
In a case like this you may need to use --force (when...