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Using helpers in model: how do I include helper dependencies?
I'm writing a model that handles user input from a text area. Following the advice from http://blog.caboo.se/articles/2008/8/25/sanitize-your-users-html-input , I'm cleaning up the input in the model before saving to database, using the before_validate callback.
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SQL ON DELETE CASCADE, Which Way Does the Deletion Occur?
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Cascade will work when you delete something on table Courses. Any record on table BookCourses that has reference to table Courses will be deleted automatically.
But when you try to delete on table BookCourses only the table itself is affected and no...
Iterate through the fields of a struct in Go
Basically, the only way (that I know of) to iterate through the values of the fields of a struct is like this:
3 Answers
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NSString: isEqual vs. isEqualToString
What is the difference between isEqual: and isEqualToString: ?
5 Answers
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Shorthand way for assigning a single field in a record, while copying the rest of the fields?
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Yes, there's a nice way of updating record fields. In GHCi you can do --
> data Foo = Foo { a :: Int, b :: Int, c :: String } -- define a Foo
> let foo = Foo { a = 1, b = 2, c = "Hello" } -- create a Foo
> let updateFoo x = x { c = "...
jQuery UI slider Touch & Drag/Drop support on Mobile devices
I have already styled and implemented jQuery UI slider into a project. Though it's responsive, the slider does not respond to being touched and dragged. Instead, you have to touch where you want the slider to go. I'd like to avoid swapping to jQuery mobile UI, which supports touching and dragging, s...
renamed heroku app from website, now it's not found
After renaming my heroku app from the heroku website, whenever I cd to its directory in a terminal and run any heroku command, I get App not found . Does anybody know of a way to remedy this?
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How do I create/edit a Manifest file?
I have this code from a coworker (probably got it from the web somewhere) but he's out on vacation and I need to add this to the manifest file
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Difference between float and double in php?
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There is no difference in PHP. float, double or real are the same datatype.
At the C level, everything is stored as a double.
The real size is still platform-dependent.
See the manual for more details:
http://www.php.net/manual/en/language.types.float.php
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Difference between a clickable ImageView and ImageButton
I'm just wondering if there is any significant difference between an ImageView that's set to be clickable, compared with an ImageButton ?
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