How to Fix APC Back-UPS ES Constant Beeping Problem

Lately my APC Back-UPS ES 700 was crippled by the problem that seems to kill most of it’s models: after a surge event, instead of switching to battery it starts to continuously beep. For a while I could restart it several times and the problem would go away, but in the past few days nothing would make it turn on again without constant beeping.

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Author's profile picture Nicu Surdu

Use DigitalOcean as Dynamic DNS

I have a server at my home on which I host various test projects and I needed a dynamic DNS service as my ISP assigns me an IP dynamically. Tried some dynamic DNS services, but their domain names tend to get long, and I don’t like typing URLS. So I decided to buy a domain and handle the DNS update myself.

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Author's profile picture Nicu Surdu

Disable Margin Collapse in CSS with No Visual Impact

When working with CSS you sometimes have to work around a behaviour known as margin collapsing. Basically, the top/bottom margin of two neighboring block elements will be set to the biggest margin value in-between the two elements, if their top/bottom margins are adjacent and no text, clearance, padding nor border separate them.

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Author's profile picture Nicu Surdu

How to Set a Variable in Django Template

As you may have figured by now, Django does not implement such a feature. That is, because the logic of setting the variable must go in the view, not in the template. But there are some rare cases when you actually need this.

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Author's profile picture Nicu Surdu

Capture the Output of a Django Command

The documentation is very slim when it talks about how to call a Django command from code. In order to do this, just use call_command. To solve the trick of capturing the output of this I had to dig a little into the Django source.

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Author's profile picture Nicu Surdu

How Does Shazam Work ?

What is Shazam, you may ask ? Let’s say you’re in a bar, and they play a song that you like and you don’t know its name ? Shazam can help you find out what is the name of that song.

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Author's profile picture Nicu Surdu

Make LineString Resolution Depend on Zoom Level in OpenLayers

So, you want to render a route on your OpenLayers map. Everything will be nice and sweet until you’ll have to render a huge route, in which case no matter what computer your clients have, most probably it will stall. To solve this you have two possibilities: you either reduce the number of lines you send from the server or you reduce the number of points rendered directly on the client’s browser.

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Author's profile picture Nicu Surdu