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<?php defined("SYSPATH") or die("No direct script access.");
/**
* Gallery - a web based photo album viewer and editor
* Copyright (C) 2000-2009 Bharat Mediratta
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or (at
* your option) any later version.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA.
*/
class Comment_Model extends ORM {
function item() {
return ORM::factory("item", $this->item_id);
}
function author() {
return identity::lookup_user($this->author_id);
}
function author_name() {
$author = $this->author();
if ($author->guest) {
return $this->guest_name;
} else {
return $author->display_name();
}
}
function author_email() {
$author = $this->author();
if ($author->guest) {
return $this->guest_email;
} else {
return $author->email;
}
}
function author_url() {
$author = $this->author();
if ($author->guest) {
return $this->guest_url;
} else {
return $author->url;
}
}
/**
* Add some custom per-instance rules.
*/
public function validate(Validation $array=null) {
// validate() is recursive, only modify the rules on the outermost call.
if (!$array) {
$this->rules = array(
"guest_name" => array("callbacks" => array(array($this, "valid_author"))),
"guest_email" => array("rules" => array("email")),
"guest_url" => array("rules" => array("url")),
"item_id" => array("callbacks" => array(array($this, "valid_item"))),
"state" => array("rules" => array("Comment_Model::valid_state")),
"text" => array("rules" => array("required")),
);
}
parent::validate($array);
}
/**
* @see ORM::save()
*/
public function save() {
$this->updated = time();
if (!$this->loaded()) {
// New comment
$this->created = $this->updated;
if (empty($this->state)) {
$this->state = "published";
}
// These values are useful for spam fighting, so save them with the comment. It's painful to
// check each one to see if it already exists before setting it, so just use server_http_host
// as a semaphore for now (we use that in g2_import.php)
if (empty($this->server_http_host)) {
$input = Input::instance();
$this->server_http_accept = substr($input->server("HTTP_ACCEPT"), 0, 128);
$this->server_http_accept_charset = substr($input->server("HTTP_ACCEPT_CHARSET"), 0, 64);
$this->server_http_accept_encoding = substr($input->server("HTTP_ACCEPT_ENCODING"), 0, 64);
$this->server_http_accept_language = substr($input->server("HTTP_ACCEPT_LANGUAGE"), 0, 64);
$this->server_http_connection = substr($input->server("HTTP_CONNECTION"), 0, 64);
$this->server_http_host = substr($input->server("HTTP_HOST"), 0, 64);
$this->server_http_referer = substr($input->server("HTTP_REFERER"), 0, 255);
$this->server_http_user_agent = substr($input->server("HTTP_USER_AGENT"), 0, 128);
$this->server_query_string = substr($input->server("QUERY_STRING"), 0, 64);
$this->server_remote_addr = substr($input->server("REMOTE_ADDR"), 0, 32);
$this->server_remote_host = substr($input->server("REMOTE_HOST"), 0, 64);
$this->server_remote_port = substr($input->server("REMOTE_PORT"), 0, 16);
}
$visible_change = $this->state == "published";
parent::save();
module::event("comment_created", $this);
} else {
// Updated comment
$original = ORM::factory("comment", $this->id);
$visible_change = $original->state == "published" || $this->state == "published";
parent::save();
module::event("comment_updated", $original, $this);
}
// We only notify on the related items if we're making a visible change.
if ($visible_change) {
$item = $this->item();
module::event("item_related_update", $item);
}
return $this;
}
/**
* Add a set of restrictions to any following queries to restrict access only to items
* viewable by the active user.
* @chainable
*/
public function viewable() {
$this->join("items", "items.id", "comments.item_id");
return item::viewable($this);
}
/**
* Make sure we have an appropriate author id set, or a guest name.
*/
public function valid_author(Validation $v, $field) {
if (empty($this->author_id)) {
$v->add_error("author_id", "required");
} else if ($this->author_id == identity::guest()->id && empty($this->guest_name)) {
$v->add_error("guest_name", "required");
}
}
/**
* Make sure we have a valid associated item id.
*/
public function valid_item(Validation $v, $field) {
if (db::build()
->from("items")
->where("id", "=", $this->item_id)
->count_records() != 1) {
$v->add_error("item_id", "invalid");
}
}
/**
* Make sure that the state is legal.
*/
static function valid_state($value) {
return in_array($value, array("published", "unpublished", "spam", "deleted"));
}
}
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