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Rails: Why does find(id) raise an exception in rails? [duplicate]
...elper code which conditionally generates the Previous Post/Next Post links from having to handle the RecordNotFound exception, which would be bad because it would be using an exception for control flow.
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Diff Algorithm? [closed]
... Hmmm, in short, sometimes figuring out the underlying algorithm from actual source code (especially if it's optimized to be efficient) can be quite complex. I will be able to understand what the program is doing step by step, but not exactly "why", or a high level overview about that... E...
Using variables inside a bash heredoc
...ost.
local=$(uname)
ssh -t remote <<:
echo "$local is the value from the host which ran the ssh command"
# Prevent here doc from expanding locally; remote won't see backslash
remote=\$(uname)
# Same here
echo "\$remote is the value from the host we ssh:ed to"
:
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Heroku “psql: FATAL: remaining connection slots are reserved for non-replication superuser connectio
...dically, I get this error message when trying to access the database, both from the CLI and from loading a page on the server:
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IOS 7 Navigation Bar text and arrow color
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Behavior from some of the properties of UINavigationBar has changed from iOS 7. You can see in the image shown below :
Two beautiful links I'd like to share with you. For more details you can go through these links :
iOS 7 UI T...
Vertex shader vs Fragment Shader [duplicate]
...texture coordinate sets. These various interpolated parameters are derived from the transformed vertices that make up the particular geometric primitive used to generate the fragments. You can think of a fragment as a "potential pixel." If a fragment passes the various rasterization tests (in the ra...
What is the difference between “Flush Magento Cache” and “Flush Cache Storage” in magento's cache ma
...ding to its associated Magento tag.
Flush Cache Storage:
Remove all items from the cache regardless Magento tag. If you used another location used by other application will be removed in this process.
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Is it better to use C void arguments “void foo(void)” or not “void foo()”? [duplicate]
...ite functions like printf, and I wanted to discourage that right away. Far from suggesting that () is the way to do varargs, I'm saying that it best to avoid varargs altogether.
– Daniel Earwicker
Jul 22 '09 at 11:52
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Why is this inline-block element pushed downward?
...set in your question (that misalignment is due to increase of border width from 1px to 5px so if adjust negative left you'll see there is no issue)
Now remove additional characters I added to aid in
understanding. (and of course remove negative left)
Finally reduce body width because we no longer ne...
Inno Setup for Windows service?
...e switch --start to your c# application and start windows service directly from the program by using ServiceController class (msdn.microsoft.com/en-us/library/…).
– lubos hasko
Sep 20 '09 at 2:52
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