Substring + Concat on Virtual Fields in CakePHP - possible?
This seems like a simple question, but I can't get it to work. I've created a virtual field that combines a name and address:
var $virtualFields = array(
'name_address' => 'CONCAT(Venue.name, " - ", Venue.address)'
);
Is there a way to use SUBSTR
on this? (PHP or MYSQ开发者_Go百科L is fine - whichever is best/works).
I've tried this (to no avail):
'name_address' => 'SUBSTR(CONCAT(Venue.name, " - ", Venue.address),0,50)'
I've also tried SUBSTR on the individual fields within the CONCAT.
This is absolutely no problem. Your only error is, that you thought of the SUBSTRING-function in MySQL working like the one in PHP where the count starts at zero.
But since this isn't PHP you have to start your counting from 1
and all will work fine.
Just use your virtualField like this and it should work just like you want:
var $virtualFields = array(
'name_address' => 'SUBSTRING(CONCAT(Venue.name, " - ", Venue.address),1,50)'
);
Also, have a read on the SUBSTRING-function in the MySQL manual
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