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What do helper and helper_method do?
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The method helper_method is to explicitly share some methods defined in the controller to make them available for the view. This is used for any method that you need to access from both controllers and helpers/views (standard helper methods are not available in controllers). e.g. common u...
What is SELF JOIN and when would you use it? [duplicate]
What is self join and when would you use it? I don't understand self joins so a layman explanation with an example would be great.
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Update statement with inner join on Oracle
I have a query which works fine in MySQL, but when I run it on Oracle I get the following error:
14 Answers
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Rails 4: List of available datatypes
Where can I find a list of data types that can be used in Ruby on Rails 4?
Such as
5 Answers
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How to set the width of a cell in a UITableView in grouped style
I have been working on this for about 2 days, so i thought i share my learnings with you.
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Junit: splitting integration test and Unit tests
I've inherited a load of Junit test, but these tests (apart from most not working) are a mixture of actual unit test and integration tests (requiring external systems, db etc).
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T-SQL query to show table definition?
What is a query that will show me the full definition, including indexes and keys for a SQL Server table? I want a pure query - and know that SQL Studio can give this to me, but I am often on "wild" computers that have only the most bare-bones apps and I have no rights to install studio. But SQLCM...
Why is setTimeout(fn, 0) sometimes useful?
I've recently run into a rather nasty bug, wherein the code was loading a <select> dynamically via JavaScript. This dynamically loaded <select> had a pre-selected value. In IE6, we already had code to fix the selected <option> , because sometimes the <select> 's sele...
PHP Sort a multidimensional array by element containing date
...$t2;
}
usort($array, 'date_compare');
EDIT: Your data is organized in an array of arrays. To better distinguish those, let's call the inner arrays (data) records, so that your data really is an array of records.
usort will pass two of these records to the given comparison function date_comp...
How to focus on a form input text field on page load using jQuery?
...s probably very simple, but could somebody tell me how to get the cursor blinking on a text box on page load?
11 Answers
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