kongondo

http://bfy.tw/5mfF : migrate site

Please have a look at the results and let us know if you still have a specific need...

The topics I linked to should be able to help you (@see my edited post above yours). The code at the first link is pretty straight forward and solid...
 
Edit:
 
If you don't want to use a function and you'll have no more than 2 levels, you could probably get way with this:
<div class="collapse navbar-collapse navbar-right"> <ul class="nav navbar-nav menu navbar-right"> <?php $out = ''; $root = $pages->get("/"); $children = $root->children("limit=7"); $children->prepend($root); foreach($children as $child) { $out .= "<li><a href='{$child->url}'>{$child->title}</a></li>"; if($child->numChildren) {// @note: you could do some more checks here; foreach($child->children as $c) { $out .= "<ul>"; $out .= "<li><a href='{$c->url}'>{$c->title}</a></li>"; $out .= "</ul>"; } } } echo $out; ?> </ul> </div>

Aah, I see. If you need to use the template file of the child pages, have a look at this long thread. @jonathan's post may be of special interest in your case.
You do not need to use the redirect module for such a simple redirect. For such you use $session->redirect('url') like I indicated  . Have a read here about the session variable.

$t->flags = Template::flagSystemOverride; $t->flags = 0; // etc... save here or delete $t->save();  

Hi @holmescreek,
Welcome to ProcessWire and the forums. You might want to have a read here first about various approaches to categorising site content. 
I have only had a quick glance at the PDF. I notice you are creating the ABBA page directly under POP then also having the possibility to select POP (the parent page) within ABBA. That's not the 'usual' way we got about this.
What would work best is something like this (page tree):
Genres (template genres)
    Pop (template genre)
    Foreign
   Rock
Artists (template artists)
   ABBA (template artist)
   U2
   Rolling Stones
Then, in the template artist (for individual artists), add a page field of type multiple, called, for example, genres. In the page field genres, in template of selectable pages, set that to 'genre'. Then, in your artist pages, say when editing ABBA, you can choose all the genres you want for the band, e.g. 'Foreign' and 'Pop'. In the front-end end you can then do something like:
// grab all pop bands (if many, you may want to place a limit and use pagination) $pop = $pages->get('/genres/pop/'); $artists = $pages->find("template=artist, genres=$pop"); // or, if users are viewing the POP page $artists = $pages->find("template=artist, genres=$page"); Of course, it is possible to search for multiple genres in a single query. See the selectors' docs here.
This type of organisation keeps duplicity to a minimum.

@jtborger,
You are not wasting anyone's time. The fact of the matter is that overall, there is still a lot of room to improve ProcessWire's documentation and tutorials across a range of topics spanning both basic and advanced stuff. It is something we are aware of and are keen to improve. Part of the Road Map for 2016 is exactly that...'continued and greater focus on documentation and tutorials'. Of course this does not mean everything will be done and dusted by the end of play 2016 but there should be some positive advances nevertheless.  Whilst there are some great examples in the forums regarding various uses of the ProcessWire API, those cannot and should not be considered as a long term solution in lieu of proper documentation. In the meantime though, they are a good place to start if you are searching for particular answers.
Welcome back to the forums

And we are back...
I now recall I have seen this error before (when I was playing around with enhancing the Comments Manager). Yeah, the error is not very intuitive. ProcessCommentsManager should at least catch the error and give a more informative message. What is happening is this. In line #92, Comments manager is calling a constant from the Comment Class. The Comment Class is not a module but a .php file. It is loaded/required_once in FieldtypeComments.module line #22. So, unless you at created at least one field of type Comments, you will get that error. That field does not have even have to be added to a template yet for this to work. If such a field is present, it calls FieldtypeComments.module which in turn loads the Comment.php class and everything is fine and dandy. 
So, long story short, first create a field of type Comments before attempting to load ProcessCommentsManager. I would also file a request on GitHub for @ryan to consider catching the above error and returning a more meaningful error message for supersusers.

Might be of use..
https://processwire.com/talk/topic/8343-access-page-and-pages-variables-from-inside-a-javascript-file/
https://processwire.com/talk/topic/5162-how-to-load-js-css-plugins-colorbox-cycle2/

Worked as expected in my testing (PW 2.7.2). Are you getting any errors?
Btw, you are naming your fields using upper-case first letters? It still works but it's a good idea to follow the recommendation about naming fields:

That's still in the works.
ProcessWire 3 is here:
https://github.com/ryancramerdesign/ProcessWire/tree/devns
Version 3 has gone beyond 'alpha', btw.

Simplest way I can think of is to use PHP substr and strip_tags. The latter is very greedy so you need to tell it what to avoid [allowable tags]...(it get could messy very quickly). Anyhow, this is how we do it in the Blog module using those two PHP functions.

Try removing the isset condition...
<?php if($page->slideshow->count()):?>// or below if this doesn't work.. // <?php if(count($page->slideshow)):?>

Welcome to the forums and ProcessWire
You got two options:
Use the ImageExtra module If you are using the page itself as a store for the image, you can use your page's title as the image's title By the way, in case you haven't seen it, you can enable image tags when editing your image fields.

echo $page->parent->title;
echo $page->parent->name;
echo $page->parent->id;
echo $page->parent->whatever_property;// non-array property

Use getQueryLog()
Maybe something like:
$queries = $database->getQueryLog(); foreach($queries as $query){ if (strpos($query, 'classification')) {//just to limit our search since there could be other queries echo '<pre>' . $query . '</pre>'; } }

Andrey,
sort by the real name of the database column (in your case it is 'data') and it will work, i.e.
$query = 'template=mytemplate,sort=myfield.data';//data here = real name of the mysubfield, not its alias At the moment, I don't know how to tell sort to sort by the alias of a subfield...Searching using an alias (if set) works fine though, e.g. 
$p = $pages->get('template=mytemplate, myfield.mysubfield=whatever');

Peter, 
http://processwire.com/api/selectors/#operators

Andrey,
With adapted code stolen from Soma here: https://processwire.com/talk/topic/4476-validating-field-before-page-save/ (post #2), you can do something like below in an autoload module. Be sure to read Soma's explanations as well in that post/thread.
<?php class ValidateEmail extends WireData implements Module { /** * Return information about this module (required). * * @access public * @return array module info * */ public static function getModuleInfo() { return array( 'title' => 'Validate Unique Email', 'summary' => 'Ensure Uniqueness of Emails across site', 'author' => 'Kongondo, Soma', 'version' => 001, 'singular' => true, 'autoload' => true, ); } public function init(){ $this->addHookAfter("InputfieldEmail::processInput", $this, "validEmail"); } public function validEmail($event){ $field = $event->object; if($field->name == 'mail'){ $page = $this->modules->ProcessPageEdit->getPage(); $oldEmail = $page->get($field->name); $newEmail = $field->value; #$this->message("old value: $oldEmail"); #$this->message("new value: $newEmail"); $existEmail = $this->wire('pages')->get("id!=$page->id, template=basic-page, mail=$newEmail, mail!=''"); if($existEmail && $existEmail->id > 0) { $field->value = $oldEmail; $field->error($this->_("That email $newEmail is already taken mate; go fishing! :-)")); } } } } This will save if unique, keep old value if not unique and show error. I am not sure what you mean by admin gets error notification; you mean send them an email or log the error? I'll let you Google that 

Delete is permanent (be careful with that) deletion/removal of that record (from the database)....trash is well, send it to the trash...can be retrieved later in case you change your mind (unless of course you empty the trash, then its deleted).....
http://cheatsheet.processwire.com/
Welcome to the forums

Have you tried sort=sort in your find?
$projects = $pages->find("parent=/work/, sort=sort");

UNTESTED, probably have some typos + poorly formatted code (I gotta run...)
You want to add this to your template file....Wrap it around code that ensures only Superuser can load the code...
//absolute path to a directory called 'tmp' within the site folder where we have our images $dir = $config->paths->site . 'tmp'; $addAndPublish = false;//true if you want to publish on save //prepare some variables we'll need later $a = 0;//for photo pages count $failed = array(); $parent =$pages->get('/portraits/'); $t = wire('templates')->get('your-portrait-template-name'); //if we found the directory (here we use Standard PHP Library (SPL)) if (is_dir($dir)) { $directory = new RecursiveDirectoryIterator($dir, FilesystemIterator::SKIP_DOTS); //iterate through each file in this directory foreach ($directory as $path ) { set_time_limit(30);//we try to avoid timing out //Remove and delete invalid file types $validImagesExts = array('jpg', 'png', 'gif', 'jpeg'); if($path->isFile() && !in_array($path->getExtension(), $validImagesExts)) { unlink($path);//we delete the invalid file continue; } //if valid image file we create a page named after it and later save it to the page if($path->isFile()) { //we are ready to start creating pages... $p = new Page(); $p->parent =$parent; $p->template = $t; $title = $path->getBasename('.' . $path->getExtension()); $p->title = $this->sanitizer->text($title); if (!$p->title) continue;//skip to next if no title found (just in case) $p->name = $this->sanitizer->pageName($p->title);//sanitize and convert to a URL friendly page name //check if name already taken if($p->parent->child("name={$p->name}, include=all")->id) { //if the same name already exists, add it to the $failed array [to display to user in error later] and skip to next title if ($path->isFile()) { $failed [] = $path->getFilename(); } continue; } //if add and publish is false, we save new page unpublished if (!$addAndPublish) $p->addStatus(Page::statusUnpublished); $p->save(); //add image to the page and save again $p->images_field->add($dir . '/' . $path->getFilename()); $p->save(); $a++; unlink($path);//we delete the temp file } }//end foreach //delete the tmp directory wireRmdir($dir, $recursive = true); //create a string of "failed" category titles to add to error message $failedTitles = implode(', ', $failed); //give the user some feedback... if($a > 0) echo 'Added' . $a . 'Portraits<br>'; if($failedTitles) echo 'Some Portraits not added because names already in use. These are:' . $failedTitles; }//end if (is_dir($dir))) else echo 'No Such Directory Found!';

You have two options for the dropdown: Page Field or Select Options Fieldtype

Maybe how we do it in the Blog Module can be of help. Have a look at the Hooks here.

Is it a case of:
Or...?
If you are able to fetch (i.e. $my_array is NOT empty) but not display, then, as suggested, check the template file. If you cannot access (i.e. returns nothing), then check access controls, e.g. are the pages hidden? For instance, 'find' will not retrieve hidden pages although 'get' will...