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Why can't I do something like....
Posted: Thu Oct 08, 2009 9:28 am
by BDKR
Code: Select all
$config['total_rows'] =($this->db->get_where('crawled', array('base_url' => $domain)))->num_rows();
Codeigniter people will recognize some of this stuff.
Anyway, what I want is to query the db (which is what $this->db->get_where() is doing) then get the row count using a method of the returned object.
Perhaps I've been around Ruby people too long. That line of code up there certainly ain't Pythonic. LOL
Re: Why can't I do something like....
Posted: Thu Oct 08, 2009 10:45 am
by McInfo
The extra parentheses should not be used in that statement.
Does the get_where() method return an object that has a num_rows() method?
This works.
Code: Select all
<?php
class Main {
var $db;
function __construct() {
$this->db = new Db();
$this->db->get_where()->num_rows();
}
}
class Db {
function get_where () {
return $this; // Returns the current Db object
}
function num_rows () {
echo 'Hello, World.';
}
}
new Main();
Edit: This post was recovered from search engine cache.
Re: Why can't I do something like....
Posted: Thu Oct 08, 2009 7:20 pm
by BDKR
McInfo wrote:
The extra parentheses should not be used in that statement.
OK. I tried it without the parentheses and it worked. Imagine that! It made logical sense that I would need them you know? As an example of my thinking.
Code: Select all
<?php
$result=(99+45)*2;
print_r($result); echo "\n";
?>
So like for "$result"
(and I know you know this), I wanted the result of the sum operation before multiplying by 2. It was my assumption (and I think a logical one) that I would need to write the expression in the same way. Remove the parentheses and the result is different of course.
But oh well. I was just having one of those "wouldn't it be nice if" moments so I decided to post it. I'm glad I did.
Thanx mang!
