[eluser]patbert[/eluser]
I have two files in my application/libraries directory: Listing.php and Shared.php
Shared.php:
class Shared { }
Listing.php:
class Listing extends Shared { }
I then load Listing in my controller and get the error:
Fatal error: Class 'Shared' not found in application/libraries/Listing.php on line 3
[eluser]christian.schorn[/eluser]
I use CIs "load_class" function for this, better than maintaining include directives by hand.
The base library would be in application/libraries/base_lib.php, and application/libraries/extended_lib.php would look like this:
Code: <?php
load_class('base_lib', false);
class Extended_lib extends Base_lib {
//... library code
}
[eluser]patbert[/eluser]
[quote author="christian.schorn" date="1209865702"]I use CIs "load_class" function for this, better than maintaining include directives by hand.
The base library would be in application/libraries/base_lib.php, and application/libraries/extended_lib.php would look like this:
Code: <?php
load_class('base_lib', false);
class Extended_lib extends Base_lib {
//... library code
}
[/quote]
Woah, that I can do. Where is load_class documented?
[eluser]christian.schorn[/eluser]
system/codeigniter/Common.php 
Normally I don't like to use internal functions, they are generally undocumented for a reason, but in this case I think it's ok, since whenever the structure of such a basic function changes, you'll have to restructure your application anyway.
[eluser]patbert[/eluser]
Now I have another issue.
Shared.php
Code: <?php if (! defined('BASEPATH')) exit('No direct script access allowed');
class Shared {
function __construct() {
$this->ci =& get_instance();
$this->ci->config->load('movie');
$this->titletbl = $this->ci->config->item('titles_table');
$this->codectbl = $this->ci->config->item('codec_table');
$this->cntnrtbl = $this->ci->config->item('container_table');
$this->drctrtbl = $this->ci->config->item('director_table');
$this->disctbl = $this->ci->config->item('disc_table');
$this->dsctptbl = $this->ci->config->item('disc_type_table');
$this->genretbl = $this->ci->config->item('genre_table');
$this->qualtbl = $this->ci->config->item('quality_table');
$this->cntrytbl = $this->ci->config->item('country_table');
$this->cstmtbl = $this->ci->config->item('custom_table');
$this->cstmrtbl = $this->ci->config->item('custom_relation_table');
$this->custom_field_prefix = $this->ci->config->item('custom_field_prefix');
$this->imdb_title_root = $this->ci->config->item('imdb_title_root');
$this->imdb_name_root = $this->ci->config->item('imdb_name_root');
$this->image_dir = $this->ci->config->item('image_dir');
}
function make_site_link($uri, $id, $linktext) {
$site_link_html = '<a href="' . site_url($uri . $id) . '">' . $linktext . '</a>';
return $site_link_html;
}
}
Then Title.php
Code: <?php if (! defined('BASEPATH')) exit('No direct script access allowed');
load_class('Shared', false);
class Title extends Shared {
private function get_custom_field_names() {
$striplen = strlen($this->custom_field_prefix);
$field_list = $this->ci->db->list_fields($this->titletbl);
foreach ($field_list as $field) {
if (strpos($field, $this->custom_field_prefix) !== false) {
$fields[] = $field;
};
};
if (! empty($fields)) {
$this->custom_field_names->fields = (object) $fields;
$this->custom_field_names->striplen = $striplen;
};
}
}
There is a bunch of other stuff I cut out. The problem is that in the get_custom_field_names() function when it tries to read $this->custom_field_prefix I get an error that it is an undefined property.
[eluser]Spockz[/eluser]
That's correct.
That variable/property isn't declared in your Shared class.
Are you sure the __construct() is called if you instantiate Title?
[eluser]patbert[/eluser]
I would say it must be. Look at this.
Code: <?php if (! defined('BASEPATH')) exit('No direct script access allowed');
class Listing extends Shared {
public $type = 'all';
public $order = 'title';
public $direction = 'asc';
public $pagelength = 50;
public $offset = 1;
public $total_rows;
public $title_search;
public $director_search;
public $query;
public $page_links;
public $table;
private $default_array = array('type',
'order',
'direction',
'pagelength',
'offset');
public function get_list() {
$wantedrows = array (
'id_field',
'title_name',
'title_imdb_url',
"$this->titletbl.disc_id",
"$this->disctbl.disc_type_id",
'disc_type_name',
"$this->titletbl.director_id",
'director_url',
'director_name',
"$this->titletbl.genre_id",
'genre_name',
"$this->titletbl.country_id",
'country_code',
'country_name',
'title_imdb_rating',
'title_imdb_year'
);
$orderby_array = array ('title' => 'title_name',
'director' => 'director_name',
'year' => 'title_imdb_year',
'rating' => 'title_imdb_rating',
'disc' => 'disc_id');
$orderby_column = 'title_name';
foreach ($orderby_array as $orderby_key => $orderby_name) {
if ($this->order == $orderby_key) {
$order_column = $orderby_name;
};
};
$loop = 0;
do {
$this->ci->db->select($wantedrows, FALSE);
$this->ci->db->from($this->titletbl);
$this->ci->db->join($this->disctbl, "$this->titletbl.disc_id = $this->disctbl.disc_id", 'left');
$this->ci->db->join($this->dsctptbl, "$this->disctbl.disc_type_id = $this->dsctptbl.disc_type_id", 'left');
$this->ci->db->join($this->drctrtbl, "$this->titletbl.director_id = $this->drctrtbl.director_id", 'left');
$this->ci->db->join($this->genretbl, "$this->titletbl.genre_id = $this->genretbl.genre_id", 'left');
$this->ci->db->join($this->cntrytbl, "$this->titletbl.country_id = $this->cntrytbl.country_id", 'left');
if (! empty($this->title_search)) {
$this->ci->db->or_like('title_name', $this->title_search);
$this->ci->db->or_like('title_name_alt', $this->title_search);
} elseif (! empty($this->director_search)) {
$this->ci->db->or_like('director_name', $this->director_search);
};
$this->ci->db->orderby($order_column, $this->direction);
$this->ci->db->orderby('title_name');
if ($loop == 1) {
$this->ci->db->limit($this->pagelength, $this->offset);
};
$this->query = $this->ci->db->get();
if ($this->query->num_rows() < 1) {
echo 'No results, aborting';
exit();
};
if ($loop == 0) {
$totalrows = $this->query->num_rows();
};
$loop++;
} while ($loop != 2);
$this->total_rows = $totalrows;
$this->make_page_links();
}
}
Again, there is more to that class, but it runs fine and it is reading lots of things from Shared.php that were declared in Shared's __construct() function.
[eluser]christian.schorn[/eluser]
Did you define a constructor in Title? If you did, did you call parent::__construct?
[eluser]patbert[/eluser]
Oh shi. . .I did do that. Thank you!
Code: function __construct() {
parent::__construct();
$this->get_custom_field_names();
}
So is this correct? I am getting a very generic CI error now that says:
"To fetch fields requires the name of the table as a parameter."
I think that is the line $field_list = $this->ci->db->list_fields($this->titletbl); in the get_custom_field_names() function. It is almost like $this->titletbl is not set to anything?
[eluser]christian.schorn[/eluser]
What does it say, if you do
Code: var_dump($this->titletbl);
before that line?
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