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How to filter SQL results in a has-many-through relation
...ndstetter, Very nice work. I started a bounty on this question to give you extra credit (but I have to wait 24hrs). Anyway, I wonder how these queries go when you starting adding multiple club_id's instead of just two...
– Xeoncross
Oct 17 '11 at 17:58
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What's the best practice for primary keys in tables?
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Just an extra comment on something that is often overlooked. Sometimes not using a surrogate key has benefits in the child tables. Let's say we have a design that allows you to run multiple companies within the one database (maybe it...
Is there a way to make text unselectable on an HTML page? [duplicate]
... you can use this selector [unselectable=on]{...} then you avoid putting extra class
– venimus
Apr 29 '11 at 18:33
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Given the lat/long coordinates, how can we find out the city/country?
...okups per second)
Disadvantages:
Not automatically up to date
Requires extra code if you want to distinguish the case where the nearest city is dozens of miles away
May give weird results near the poles and the international date line (though there aren't any cities in those places anyway
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How to identify CAAnimation within the animationDidStop delegate?
...for this very purpose. Just take out the call to setValue and move the key string to the addAnimation call. For example:
[[hearingAidHalo layer] addAnimation:animation forKey:@"Throb"];
Then, in your animationDidStop callback, you can do something like:
if (theAnimation == [[hearingAidHalo layer...
Button in a column, getting the row from which it came on the Click event handler
...WPF Datagrid to a List of Objects returned from my DAL. I've also added an extra column which contains a button, the xaml is below.
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Difference between margin and padding?
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Remember these 3 points:
The Margin is the extra space around the control.
The Padding is extra space inside the control.
The Padding of an outer control is the Margin of an inner control.
Demo Image:(where red box is desire control)
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How can I compare two dates in PHP?
...abase the date looks like this 2011-10-2
Store it in YYYY-MM-DD and then string comparison will work because '1' > '0', etc.
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align right in a table cell with CSS
...xt-align: right;
}
In cases with large tables this can save you a lot of extra markup!
here's a fiddle for ya.... https://jsfiddle.net/w16c2nad/
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How to deal with a slow SecureRandom generator?
...RNG, do something like this:
SecureRandom.getInstance("SHA1PRNG");
What strings are supported depends on the SecureRandom SPI provider, but you can enumerate them using Security.getProviders() and Provider.getService().
Sun is fond of SHA1PRNG, so it's widely available. It isn't especially fast ...