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    • By EyeDentify
      Hello Fellow PW Fans and Gurus.

      I have run into a problem where i have created a template without a template file associated with it.
      Now i would like to HAVE a template file associated with it, not an alternate but as the main template file.

      So i thought, that's easy, I upload the template file and change it in template settings but I only get the Alternate template file setting?

      Ok so maybe i can change it via the API , so i wrote some code for this.
      <?PHP function changeTemplate($pages = null, $templates = null) { /* get the pages to change template on */ $logItems = $pages->findMany('template=tmp_log_item'); /* get the template object for our desired template */ $Template = $templates->get('tmp_new_log_item'); foreach($logItems AS $key => $logData) { /* use template object $Template to set template */ $logData->template = $Template; /* save page item */ $logData->save(); } } /* do the magic change */ changeTemplate(); ?> Needless to say, PW was not happy about this, It throw up an error message:
      Error: Exception: Invalid value sent to Page::setTemplate (in /home/virtual/mydomain/public_html/wire/core/Page.php line 1782)
      Now from what i understand i gave $logData->template the wrong type of value.
      So what should the value be to correct this?
      When I read the docs at: https://processwire.com/api/ref/page/
      the value can be "string" or "Template".

      So i gave it a string and it went haywire.

      How should I approach this cause I realy dont want to manually change template file on över 50 plus pages

      Maybe I should use the Template class to create the value that the API wanted, but I am unsure how to use it.

      Thank you for any info you can give me on this.

      If you want more info to help me, ask and I will try my best to give it to you.
      Updated and Solved
      I solved the problem and have updated the code to reflect this.

      Essentialy i used the get() method of $templates to get the template object for my template i wanted to use using the template name.
      I gave the Object to the $logData->template property and all went well.
      We learn something new every day.
      One Note:
      The template file you want to use must have been uploaded and added as a template in the Template section in the Admin for this code to work as expected.
    • By chcs
      After running this code in my module's __install() the template_id is not set. Any ideas why?  (The export contents from the template created and the one that I built with Admin are the same. Both exports have the template_id is set to mm_state. When I go to edit the field in Admin, the template is not showing on the Input tab and it doesn't show the template title on a page using the template that uses this field. Using processwire 3.0.98)

      // mm_state
      $field = $this->fields->get('mm_state');
      if (!@$field->id) $field = new Field();
      $field->type = $this->modules->get("FieldtypePage");
      $field->name = 'mm_state';
      $field->label = 'State';
      $field->derefAsPage = 2;
      $field->inputfield = "InputfieldSelect";
      $field->labelFieldName = 'title';
      $field->template_id = 'mm_state';
      $field->columnWidth = 100;
      $field->required = true;
    • By mattcohen
      Hi, I am wondering if someone can help me out with getting the count of the comments of a page? 
      I am using Ryan's comments module as a reviews system for my site and would like to display the count of the comments per page, as below 

      The shops part that you see above is something similar to this 
      <?php $set_page = $page->title; $count = $pages->count("template=prices, title=$set_page"); echo $count; ?>  
    • By louisstephens
      So I am making a front-end dashboard for an internal project, and was curious if it is possible to match 2 pages together based on their title and retrieve the data.
      To make it more clear:
      I have two pages "Section A"  and "Section B" that each has child pages with names (the specific person) with subpages for their services offered. 
      Section A - John Doe (name=john-doe) - Service 1 - Service 2 - Service 3 - Jane Doe (name=jane-doe) - Service 1 - Service 2 - Service 3 Section B - John Doe (name=john-doe) - Service 4 - Service 5 - Service 6 - Jane Doe (name=jane-doe) - Service 4 - Service 5 - Service 6 What I would like to achieve on the front-end (if it is even possibile), is an output like:
      John Doe - Service 1 - Service 2 - Service 3 - Service 4 - Service 5 - Service 6 Jane Doe - Service 1 - Service 2 - Service 3 - Service 4 - Service 5 - Service 6 Thinking aloud: use a find to get all pages using the template "service user" and then foreaching through their children (and possibly getting a few field values as well) to output in the front end. The service templates used in the sections vary slightly in which fields they use.
      <?php $findUsers = $pages->find("template=service-a (and or) service-b,(some how match based on names)"); //if no match exists, output what is available ?> <ul> <?php foreach ($findUsers as $groupedUser): ?> <li><?php echo $groupedUser->title; ?></li> <li><?php echo $groupedUser->service_a_location; ?></li> <li><?php echo $groupedUser->service_a_body; ?></li> <li><?php echo $groupedUser->service_b_location; ?></li> <li><?php echo $groupedUser->service_b_phone; ?></li> <?php endforeach; ?> </ul> Sorry, it is just me thinking aloud, but I was not even sure if it is possible to group them together like that. I was going to have a page for each "section" only displaying that data, but I thought it would be nice to display them all together as an overview for the user.
    • By Noel Boss
      Page Query Boss
      Build complex nested queries containing multiple fields and pages and return an array or JSON. This is useful to fetch data for SPA and PWA.
      You can use the Module to transform a ProcessWire Page or PageArray – even RepeaterMatrixPageArrays – into an array or JSON. Queries can be nested and contain closures as callback functions. Some field-types are transformed automatically, like Pageimages or MapMarker.
      Via ProcessWire Backend
      It is recommended to install the Module via the ProcessWire admin "Modules" > "Site" > "Add New" > "Add Module from Directory" using the PageQueryBoss class name.
      Download the files from Github or the ProcessWire repository: https://modules.processwire.com/modules/page-query-builder/
      Copy all of the files for this module into /site/modules/PageQueryBoss/ Go to “Modules > Refresh” in your admin, and then click “install” for the this module. Module Methods
      There are two main methods:
      Return query as JSON
      $page->pageQueryJson($query); Return query as Array
      $page->pageQueryArray($query); Building the query
      The query can contain key and value pairs, or only keys. It can be nested and 
      contain closures for dynamic values. To illustrate a short example:
      // simple query: $query = [ 'height', 'floors', ]; $pages->find('template=skyscraper')->pageQueryJson($query); Queries can be nested, contain page names, template names or contain functions and ProcessWire selectors:
      // simple query: $query = [ 'height', 'floors', 'images', // < some fileds contain default sub-queries to return data 'files' => [ // but you can also overrdide these defaults: 'filename' 'ext', 'url', ], // Assuming there are child pages with the architec template, or a // field name with a page relation to architects 'architect' => [ // sub-query 'name', 'email' ], // queries can contain closure functions that return dynamic content 'querytime' => function($parent){ return "Query for $parent->title was built ".time(); } ]; $pages->find('template=skyscraper')->pageQueryJson($query); Keys:
      A single fieldname; height or floors or architects 
      The Module can handle the following fields:
      Strings, Dates, Integer… any default one-dimensional value Page references Pageimages Pagefiles PageArray MapMarker FieldtypeFunctional A template name; skyscraper or city
      Name of a child page (page.child.name=pagename); my-page-name A ProcessWire selector; template=building, floors>=25
      A new name for the returned index passed by a # delimiter:
      // the field skyscraper will be renamed to "building": $query = ["skyscraper`#building`"]  
      Key value pars:
      Any of the keys above (1-5) with an new nested sub-query array:
      $query = [ 'skyscraper' => [ 'height', 'floors' ], 'architect' => [ 'title', 'email' ], ]  
      A named key and a closure function to process and return a query. The closure gets the parent object as argument:
      $query = [ 'architecs' => function($parent) { $architects = $parent->find('template=architect'); return $architects->arrayQuery(['name', 'email']); // or return $architects->explode('name, email'); } ] Real life example:
      $query = [ 'title', 'subtitle', // naming the key invitation 'template=Invitation, limit=1#invitation' => [ 'title', 'subtitle', 'body', ], // returns global speakers and local ones... 'speakers' => function($page){ $speakers = $page->speaker_relation; $speakers = $speakers->prepend(wire('pages')->find('template=Speaker, global=1, sort=-id')); // build a query of the speakers with return $speakers->arrayQuery([ 'title#name', // rename title field to name 'subtitle#ministry', // rename subtitle field to ministry 'links' => [ 'linklabel#label', // rename linklabel field to minlabelistry 'link' ], ]); }, 'Program' => [ // Child Pages with template=Program 'title', 'summary', 'start' => function($parent){ // calculate the startdate from timetables return $parent->children->first->date; }, 'end' => function($parent){ // calculate the endate from timetables return $parent->children->last->date; }, 'Timetable' => [ 'date', // date 'timetable#entry'=> [ 'time#start', // time 'time_until#end', // time 'subtitle#description', // entry title ], ], ], // ProcessWire selector, selecting children > name result "location" 'template=Location, limit=1#location' => [ 'title#city', // summary title field to city 'body', 'country', 'venue', 'summary#address', // rename summary field to address 'link#tickets', // rename ticket link 'map', // Mapmarker field, automatically transformed 'images', 'infos#categories' => [ // repeater matrix! > rename to categories 'title#name', // rename title field to name 'entries' => [ // nested repeater matrix! 'title', 'body' ] ], ], ]; if ($input->urlSegment1 === 'json') { header('Content-type: application/json'); echo $page->pageQueryJson($query); exit(); } Module default settings
      The modules settings are public. They can be directly modified, for example:
      $modules->get('PageQueryBoss')->debug = true; $modules->get('PageQueryBoss')->defaults = []; // reset all defaults Default queries for fields:
      Some field-types or templates come with default selectors, like Pageimages etc. These are the default queries:
      // Access and modify default queries: $modules->get('PageQueryBoss')->defaults['queries'] … public $defaults = [ 'queries' => [ 'Pageimages' => [ 'basename', 'url', 'httpUrl', 'description', 'ext', 'focus', ], 'Pagefiles' => [ 'basename', 'url', 'httpUrl', 'description', 'ext', 'filesize', 'filesizeStr', 'hash', ], 'MapMarker' => [ 'lat', 'lng', 'zoom', 'address', ], 'User' => [ 'name', 'email', ], ], ]; These defaults will only be used if there is no nested sub-query for the respective type. If you query a field with complex data and do not provide a sub-query, it will be transformed accordingly:
      $page->pageQueryArry(['images']); // returns something like this 'images' => [ 'basename', 'url', 'httpUrl', 'description', 'ext', 'focus'=> [ 'top', 'left', 'zoom', 'default', 'str', ] ]; You can always provide your own sub-query, so the defaults will not be used:
      $page->pageQueryArry([ 'images' => [ 'filename', 'description' ], ]); Overriding default queries:
      You can also override the defaults, for example
      $modules->get('PageQueryBoss')->defaults['queries']['Pageimages'] = [ 'basename', 'url', 'description', ]; Index of nested elements
      The index for nested elements can be adjusted. This is also done with defaults. There are 3 possibilities:
      Nested by name (default) Nested by ID Nested by numerical index Named index (default):
      This is the default setting. If you have a field that contains sub-items, the name will be the key in the results:
      // example $pagesByName = [ 'page-1-name' => [ 'title' => "Page one title", 'name' => 'page-1-name', ], 'page-2-name' => [ 'title' => "Page two title", 'name' => 'page-2-name', ] ] ID based index:
      If an object is listed in $defaults['index-id'] the id will be the key in the results. Currently, no items are listed as defaults for id-based index:
      // Set pages to get ID based index: $modules->get('PageQueryBoss')->defaults['index-id']['Page']; // Example return array: $pagesById = [ 123 => [ 'title' => "Page one title", 'name' => 123, ], 124 => [ 'title' => "Page two title", 'name' => 124, ] ] Number based index
      By default, a couple of fields are transformed automatically to contain numbered indexes:
      // objects or template names that should use numerical indexes for children instead of names $defaults['index-n'] => [ 'Pageimage', 'Pagefile', 'RepeaterMatrixPage', ]; // example $images = [ 0 => [ 'filename' => "image1.jpg", ], 1 => [ 'filename' => "image2.jpg", ] ] Tipp: When you remove the key 'Pageimage' from $defaults['index-n'], the index will again be name-based.
      Help-fill closures & tipps:
      These are few helpfill closure functions you might want to use or could help as a
      starting point for your own (let me know if you have your own):

      Get an overview of languages:
          $query = ['languages' => function($page){         $ar = [];         $l=0;         foreach (wire('languages') as $language) {             // build the json url with segment 1             $ar[$l]['url']= $page->localHttpUrl($language).wire('input')->urlSegment1;             $ar[$l]['name'] = $language->name == 'default' ? 'en' : $language->name;             $ar[$l]['title'] = $language->getLanguageValue($language, 'title');             $ar[$l]['active'] = $language->id == wire('user')->language->id;             $l++;         }         return $ar;     }]; Get county info from ContinentsAndCountries Module
      Using the [ContinentsAndCountries Module](https://modules.processwire.com/modules/continents-and-countries/) you can extract iso
      code and names for countries:
          $query = ['country' => function($page){         $c = wire('modules')->get('ContinentsAndCountries')->findBy('countries', array('name', 'iso', 'code'),['code' =>$page->country]);         return count($c) ? (array) $c[count($c)-1] : null;     }]; Custom strings from a RepeaterTable for interface
      Using a RepeaterMatrix you can create template string for your frontend. This is
      usefull for buttons, labels etc. The following code uses a repeater with the
      name `strings` has a `key` and a `body` field, the returned array contains the `key` field as,
      you guess, keys and the `body` field as values:
          // build custom translations     $query = ['strings' => function($page){         return array_column($page->get('strings')->each(['key', 'body']), 'body', 'key');     }]; Multilanguage with default language fallback
      Using the following setup you can handle multilanguage and return your default
      language if the requested language does not exist. The url is composed like so:
      `page/path/{language}/{content-type}` for example: `api/icf/zurich/conference/2019/de/json`
          // get contenttype and language (or default language if not exists)     $lang = wire('languages')->get($input->urlSegment1);     if(!$lang instanceof Nullpage){         $user->language = $lang;     } else {         $lang = $user->language;     }     // contenttype segment 2 or 1 if language not present     $contenttype = $input->urlSegment2 ? $input->urlSegment2 : $input->urlSegment1;     if ($contenttype === 'json') {         header('Content-type: application/json');         echo $page->pageQueryJson($query);         exit();     } Debug
      The module respects wire('config')->debug. It integrates with TracyDebug. You can override it like so:
      // turns on debug output no mather what: $modules->get('PageQueryBoss')->debug = true; Todos
      Make defaults configurable via Backend. How could that be done in style with the default queries?
      Module in alpha Stage: Subject to change
      This module is in alpha stage … Query behaviour (especially selecting child-templates, renaming, naming etc)  could change