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How do I update if exists, insert if not (AKA “upsert” or “merge”) in MySQL?
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@blub: If you create a unique key on geb and topic it will work (ALTER TABLE table ADD UNIQUE geb_by_topic (geb, topic)).
– chaos
Aug 2 '09 at 13:43
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How can I check the size of a collection within a Django template?
... |length I always get confused with jinja templating in Flask and with django. Thanks for the information. Really helpful.
– Doogle
Jul 29 '18 at 9:42
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git add remote branch
I want to add a remote, and a branch of that remote.
5 Answers
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Reload the path in PowerShell
If I have an instance of PowerShell ISE running and I install something that modifies the PATH or I modify it in any way outside of PowerShell then I need to restart PowerShell for it to see the updated PATH variable.
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Mongoose indexing in production code
Per the Mongoose documentation for MongooseJS and MongoDB / Node.js :
3 Answers
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Difference between $(document.body) and $('body')
I am a jQuery beginner and while going through some code examples I found:
6 Answers
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MIME type warning in chrome for png images
Just ran my site in chrome and suprisingly it comes up with this warning for each of my .png images:
6 Answers
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How to parse a JSON string into JsonNode in Jackson?
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Is it possible to take the JsonNode, modify it a bit, and then call mapper.readValue(node, class); and get out a class?
– portforwardpodcast
Jul 26 '12 at 3:56
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How to generate string of a certain length to insert into a file to meet a file size criteria?
...utomatically generate the files. I know the size of each file, ex. 100KB, and how many files to generate. What I need help with is how to generate a string less than or equal to the required file size.
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HTML File Selection Event
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Note that in IE7 and 8 that the 'change' event doesn't bubble up to the form event. You need to put your listener on the <input> tag.
– xer0x
Jul 20 '11 at 18:07
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