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form_for with nested resources
...th(@article, comment_item),
:method => :delete, :confirm => "Really?" %>
What jamuraa says may work in the context of Article, but it did not work for me in various other ways.
There is a lot of discussion related to nested resources, e.g. http://weblog.jamisbuck.org/2007/2/5/nesti...
Automatic creation date for Django model form objects?
What's the best way to set a creation date for an object automatically, and also a field that will record when the object was last updated?
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How to specify jackson to only use fields - preferably globally
...eatorVisibility(JsonAutoDetect.Visibility.NONE));
If you want it set globally, I usually access a configured mapper through a wrapper class.
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AngularJS multiple filter with custom filter function
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this one returns all the result if it doesn't find the searched attribute in the list, how can I do to invert this behavior and return no result if the value doesn't exist in the list?
– Zakaria Belghiti
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HTTP requests and JSON parsing in Python
I want to dynamically query Google Maps through the Google Directions API. As an example, this request calculates the route from Chicago, IL to Los Angeles, CA via two waypoints in Joplin, MO and Oklahoma City, OK:
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Section vs Article HTML5
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Additionally: <main> can be used to wrap the elements between the header and footer (blue blocks from the image). <figure> wraps images within the articles or sections.
– logic-unit
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Can't connect to local MySQL server through socket '/var/lib/mysql/mysql.sock' (2)
... In that case, you should probably check if your MYSQL server is actually running.
– Jan Thomä
Jan 25 '14 at 8:48
3
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How do I get the current line number?
...er to do this work for you, by writing a utility method that uses the new caller attributes:
using System.Runtime.CompilerServices;
static void SomeMethodSomewhere()
{
ShowMessage("Boo");
}
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static void ShowMessage(string message,
[CallerLineNumber] int lineNumber = 0,
[CallerMemberN...
jQuery - setting the selected value of a select control via its text description
...feels like it shouldn't work (it appears it could be ambiguous) but it actually should work fine for me. Thanks.
– DanSingerman
Jan 30 '09 at 16:28
69
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Count occurrences of a char in plain text file
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If all you need to do is count the number of lines containing your character, this will work:
grep -c 'f' myfile
However, it counts multiple occurrences of 'f' on the same line as a single match.
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