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Post Relationship ext

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Daku 2014-02-03 13:54:09 +00:00
parent d19e7fff7b
commit 13cdb9ba5f
2 changed files with 161 additions and 0 deletions
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121
ext/relatationships/main.php Normal file
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<?php
/**
* Name: Post Relationships
* Author: Angus Johnston <admin@codeanimu.net>
* License: GPLv2
* Description: Allow posts to have relationships (parent/child).
*/
class Relationships extends Extension {
public function onInitExt(InitExtEvent $event) {
global $config, $database;
// Create the database tables
if ($config->get_int("ext_relationships_version") < 1){
$database->Execute("ALTER TABLE images ADD parent_id INT NULL, ADD INDEX (parent_id);");
$database->Execute("ALTER TABLE images ADD has_children BOOL DEFAULT FALSE NOT NULL;");
$config->set_int("ext_relationships_version", 1);
log_info("relationships", "extension installed");
}
}
public function onImageInfoSet(ImageInfoSetEvent $event) {
global $user;
if (isset($_POST["tag_edit__parent"])) {
if(ctype_digit($_POST["tag_edit__parent"])){
$this->set_parent($event->image->id, (int) $_POST["tag_edit__parent"]);
}
}
}
public function onDisplayingImage(DisplayingImageEvent $event) {
$this->theme->relationship_info($event->image);
}
public function onSearchTermParse(SearchTermParseEvent $event) {
$matches = array();
if(preg_match("/^parent[=|:]([0-9]+|any|none)$/", $event->term, $matches)) {
$parentID = $matches[1];
if(preg_match("/^(any|none)$/", $parentID)){
$not = ($parentID == "any" ? "NOT" : "");
$event->add_querylet(new Querylet("images.parent_id IS $not NULL"));
}else{
$event->add_querylet(new Querylet("images.parent_id = :pid", array("pid"=>$parentID)));
}
}
else if(preg_match("/^child[=|:](any|none)$/", $event->term, $matches)) {
$not = ($matches[1] == "any" ? "=" : "!=");
$event->add_querylet(new Querylet("images.has_children $not TRUE"));
}
}
public function onTagTermParse(TagTermParseEvent $event) {
$matches = array();
if(preg_match("/^parent[=|:]([0-9]+|none)$/", $event->term, $matches)) {
$parentID = $matches[1];
if($parentID == "none" || $parentID == "0"){
$this->remove_parent($event->id);
}else{
$this->set_parent($event->id, $parentID);
}
}
else if(preg_match("/^child[=|:]([0-9]+)$/", $event->term, $matches)) {
$childID = $matches[1];
$this->set_child($event->id, $childID);
}
if(!empty($matches)) $event->metatag = true;
}
public function onImageInfoBoxBuilding(ImageInfoBoxBuildingEvent $event) {
$event->add_part($this->theme->get_parent_editor_html($event->image), 45);
}
public function onImageDeletion(ImageDeletionEvent $event) {
global $database;
if($event->image->has_children){
$database->execute("UPDATE images SET parent_id = NULL WHERE parent_id = :iid", array("iid"=>$event->image->id));
}
if($event->image->parent_id !== NULL){
$database->execute("UPDATE images SET has_children = (SELECT * FROM (SELECT CASE WHEN (COUNT(*) - 1) > 0 THEN 1 ELSE 0 END FROM images WHERE parent_id = :pid) AS sub)
WHERE id = :pid", array("pid"=>$event->image->parent_id));
}
}
private function set_parent(/*int*/ $imageID, /*int*/ $parentID){
global $database;
if($database->get_row("SELECT 1 FROM images WHERE id = :pid", array("pid"=>$parentID))){
$database->execute("UPDATE images SET parent_id = :pid WHERE id = :iid", array("pid"=>$parentID, "iid"=>$imageID));
$database->execute("UPDATE images SET has_children = TRUE WHERE id = :pid", array("pid"=>$parentID));
}
}
private function set_child(/*int*/ $parentID, /*int*/ $childID){
global $database;
if($database->get_row("SELECT 1 FROM images WHERE id = :cid", array("cid"=>$childID))){
$database->execute("UPDATE images SET parent_id = :pid WHERE id = :cid", array("cid"=>$childID, "pid"=>$parentID));
$database->execute("UPDATE images SET has_children = TRUE WHERE id = :pid", array("pid"=>$parentID));
}
}
private function remove_parent(/*int*/ $imageID){
global $database;
$parentID = $database->get_one("SELECT parent_id FROM images WHERE id = :iid", array("iid"=>$imageID));
if($parentID){
$database->execute("UPDATE images SET parent_id = NULL WHERE id = :iid", array("iid"=>$imageID));
$database->execute("UPDATE images SET has_children = (SELECT * FROM (SELECT CASE WHEN COUNT(*) > 0 THEN 1 ELSE 0 END FROM images WHERE parent_id = :pid) AS sub)
WHERE id = :pid", array("pid"=>$parentID));
}
}
}
?>

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<?php
class RelationshipsTheme extends Themelet {
public function relationship_info($image) {
global $page, $database;
if($image->parent_id !== NULL){
$a = "<a href='".make_link("post/view/".$image->parent_id)."'>parent post</a>";
$page->add_block(new Block(null, "This post belongs to a $a.", "main", 5));
}
if($image->has_children == TRUE){
$ids = $database->get_col("SELECT id FROM images WHERE parent_id = :iid", array("iid"=>$image->id));
$html = "This post has <a href='".make_link('post/list/parent='.$image->id.'/1')."'>".(count($ids) > 1 ? "child posts" : "a child post")."</a>";
$html .= " (post ";
foreach($ids as $id){
$html .= "#<a href='".make_link('post/view/'.$id)."'>{$id}</a>, ";
}
$html = rtrim($html, ", ").").";
$page->add_block(new Block(null, $html, "main", 6));
}
}
public function get_parent_editor_html(Image $image) {
$h_parent_id = $image->parent_id;
$s_parent_id = $h_parent_id ?: "None.";
$html = "<tr>\n".
" <th>Parent</th>\n".
" <td>\n".
" <span class='view' style='overflow: hidden; white-space: nowrap;'>{$s_parent_id}</span>\n".
" <input class='edit' type='text' name='tag_edit__parent' type='number' value='{$h_parent_id}'>\n".
" <td>\n".
"</tr>\n";
return $html;
}
}
?>