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How do I update if exists, insert if not (AKA “upsert” or “merge”) in MySQL?
...ERT ... ON DUPLICATE KEY UPDATE. For example:
INSERT INTO `usage`
(`thing_id`, `times_used`, `first_time_used`)
VALUES
(4815162342, 1, NOW())
ON DUPLICATE KEY UPDATE
`times_used` = `times_used` + 1
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Clearing purchases from iOS in-app purchase sandbox for a test user
Does anyone have any ideas on how to reset and/or clear the iOS in-app purchase sandbox?
8 Answers
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Warn user before leaving web page with unsaved changes
...tepickers or checkbox/radiobutton beautifiers which save their value in a hidden input through JavaScript.
The change event also doesn't trigger on values set from JavaScript code, so also won't work for virtual inputs.
Binding the input event to all inputs (and textareas and selects) on your pa...
Adding a public key to ~/.ssh/authorized_keys does not log me in automatically
...mands are in the FAQ: openssh.org/faq.html#3.14
– davidjb
May 8 '13 at 23:45
3
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Accessing an SQLite Database in Swift
... the sqlite3_open documentation makes it explicit that we must do so to avoid leaking memory:
Whether or not an error occurs when it is opened, resources associated with the database connection handle should be released by passing it to sqlite3_close() when it is no longer required.
Use sqlite3...
Make anchor link go some pixels above where it's linked to
...// This is here so that when you enter the page with a hash,
// it can provide the offset in that case too. Having a timeout
// seems necessary to allow the browser to jump to the anchor first.
window.setTimeout(offsetAnchor, 1); // The delay of 1 is arbitrary and may not always work right (although...
Adding custom radio buttons in android
I have a simple android radio button below
10 Answers
10
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Migrating from JSF 1.2 to JSF 2.0
...n.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd"
id="YourWebappID"
version="2.5">
Note: when you're using Servlet 3.0 or newer, use the http://xmlns.jcp.org namespace domain instead of http://java.sun.com throughout the above XML snippet.
JSP 2.x to JSP 2.x
If...
How do I convert a String object into a Hash object?
...o turn it back into a hash because #<Object:0x7f66b65cf4d0> isn't valid Ruby syntax.
However, if all that's in the hash is strings, symbols, numbers, and arrays, it should work, because those have string representations that are valid Ruby syntax.
...
Does IMDB provide an API? [closed]
...//www.imdb.com/xml/find?xml=1&nr=1&tt=on&q=lost
Format: XML
Upside: Supports both film titles and actor names (unlike Suggestions API).
Beware that these APIs are unofficial and could change at any time!
Update (January 2019): The Advanced API no longer exists. The good news is, t...